; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instcombine < %s | FileCheck %s
define void @test_shl(i1 %x) {
; CHECK-LABEL: @test_shl(
; CHECK-NEXT: call void @sink(i8 0)
; CHECK-NEXT: ret void
;
%y = zext i1 %x to i8
%z = shl i8 64, %y
%a = and i8 %z, 1
call void @sink(i8 %a)
ret void
}
define void @test_lshr(i1 %x) {
; CHECK-LABEL: @test_lshr(
; CHECK-NEXT: call void @sink(i8 0)
; CHECK-NEXT: ret void
;
%y = zext i1 %x to i8
%z = lshr i8 64, %y
%a = and i8 %z, 1
call void @sink(i8 %a)
ret void
}
define void @test_ashr(i1 %x) {
; CHECK-LABEL: @test_ashr(
; CHECK-NEXT: call void @sink(i8 0)
; CHECK-NEXT: ret void
;
%y = zext i1 %x to i8
%z = ashr i8 -16, %y
%a = and i8 %z, 3
call void @sink(i8 %a)
ret void
}
define void @test_udiv(i8 %x) {
; CHECK-LABEL: @test_udiv(
; CHECK-NEXT: call void @sink(i8 0)
; CHECK-NEXT: ret void
;
%y = udiv i8 10, %x
%z = and i8 %y, 64
call void @sink(i8 %z)
ret void
}
define i8 @test_cond(i8 %x) {
; CHECK-LABEL: @test_cond(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp eq i8 %and, 0
br i1 %cmp, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_inv(i8 %x) {
; CHECK-LABEL: @test_cond_inv(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[AND]], 0
; CHECK-NEXT: call void @use(i1 [[CMP]])
; CHECK-NEXT: br i1 [[CMP]], label [[EXIT:%.*]], label [[IF:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp ne i8 %and, 0
call void @use(i1 %cmp)
br i1 %cmp, label %exit, label %if
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_and(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_and(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = and i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp eq i8 %and, 0
%cond = and i1 %cmp, %c
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_and_bothways(i8 %x) {
; CHECK-LABEL: @test_cond_and_bothways(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 91
; CHECK-NEXT: [[CMP0:%.*]] = icmp ne i8 [[AND]], 24
; CHECK-NEXT: [[CMP1:%.*]] = icmp ne i8 [[X]], 0
; CHECK-NEXT: [[COND:%.*]] = and i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: [[OR1:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR1]]
; CHECK: exit:
; CHECK-NEXT: ret i8 -4
;
%and = and i8 %x, 91
%cmp0 = icmp ne i8 %and, 24
%cmp1 = icmp ne i8 %x, 0
%cond = and i1 %cmp0, %cmp1
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_or_bothways(i8 %x) {
; CHECK-LABEL: @test_cond_or_bothways(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 91
; CHECK-NEXT: [[CMP0:%.*]] = icmp eq i8 [[AND]], 24
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i8 [[X]], 0
; CHECK-NEXT: [[COND:%.*]] = or i1 [[CMP0]], [[CMP1]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 91
%cmp0 = icmp eq i8 %and, 24
%cmp1 = icmp eq i8 %x, 0
%cond = or i1 %cmp0, %cmp1
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_and_commuted(i8 %x, i1 %c1, i1 %c2) {
; CHECK-LABEL: @test_cond_and_commuted(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[C3:%.*]] = and i1 [[C1:%.*]], [[C2:%.*]]
; CHECK-NEXT: [[COND:%.*]] = and i1 [[C3]], [[CMP]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp eq i8 %and, 0
%c3 = and i1 %c1, %c2
%cond = and i1 %c3, %cmp
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_logical_and(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_logical_and(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP]], i1 [[C:%.*]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp eq i8 %and, 0
%cond = select i1 %cmp, i1 %c, i1 false
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_or_invalid(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_or_invalid(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = or i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: [[OR1:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR1]]
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp eq i8 %and, 0
%cond = or i1 %cmp, %c
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_inv_or(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_inv_or(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = or i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: [[OR1:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR1]]
; CHECK: exit:
; CHECK-NEXT: ret i8 -4
;
%and = and i8 %x, 3
%cmp = icmp ne i8 %and, 0
%cond = or i1 %cmp, %c
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_inv_logical_or(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_inv_logical_or(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP_NOT]], i1 [[C:%.*]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: ret i8 -4
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp ne i8 %and, 0
%cond = select i1 %cmp, i1 false, i1 %c
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i8 @test_cond_inv_and_invalid(i8 %x, i1 %c) {
; CHECK-LABEL: @test_cond_inv_and_invalid(
; CHECK-NEXT: [[AND:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[AND]], 0
; CHECK-NEXT: [[COND:%.*]] = and i1 [[CMP]], [[C:%.*]]
; CHECK-NEXT: br i1 [[COND]], label [[IF:%.*]], label [[EXIT:%.*]]
; CHECK: if:
; CHECK-NEXT: [[OR1:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR1]]
; CHECK: exit:
; CHECK-NEXT: [[OR2:%.*]] = or i8 [[X]], -4
; CHECK-NEXT: ret i8 [[OR2]]
;
%and = and i8 %x, 3
%cmp = icmp ne i8 %and, 0
%cond = and i1 %cmp, %c
br i1 %cond, label %if, label %exit
if:
%or1 = or i8 %x, -4
ret i8 %or1
exit:
%or2 = or i8 %x, -4
ret i8 %or2
}
define i32 @test_icmp_trunc1(i32 %x) {
; CHECK-LABEL: @test_icmp_trunc1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[Y:%.*]] = trunc i32 [[X:%.*]] to i16
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i16 [[Y]], 7
; CHECK-NEXT: br i1 [[CMP]], label [[THEN:%.*]], label [[ELSE:%.*]]
; CHECK: then:
; CHECK-NEXT: ret i32 7
; CHECK: else:
; CHECK-NEXT: ret i32 0
;
entry:
%y = trunc i32 %x to i16
%cmp = icmp eq i16 %y, 7
br i1 %cmp, label %then, label %else
then:
%z = and i32 %x, 15
ret i32 %z
else:
ret i32 0
}
define i32 @test_icmp_trunc_assume(i32 %x) {
; CHECK-LABEL: @test_icmp_trunc_assume(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[Y:%.*]] = trunc i32 [[X:%.*]] to i16
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i16 [[Y]], 7
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i32 7
;
entry:
%y = trunc i32 %x to i16
%cmp = icmp eq i16 %y, 7
call void @llvm.assume(i1 %cmp)
%z = and i32 %x, 15
ret i32 %z
}
define i64 @test_icmp_trunc2(i64 %x) {
; CHECK-LABEL: @test_icmp_trunc2(
; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[X:%.*]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[CONV]], 12
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[SEXT:%.*]] = and i64 [[X]], 2147483647
; CHECK-NEXT: ret i64 [[SEXT]]
; CHECK: if.else:
; CHECK-NEXT: ret i64 0
;
%conv = trunc i64 %x to i32
%cmp = icmp sgt i32 %conv, 12
br i1 %cmp, label %if.then, label %if.else
if.then:
%sext = shl i64 %x, 32
%ret = ashr exact i64 %sext, 32
ret i64 %ret
if.else:
ret i64 0
}
define i64 @test_icmp_trunc3(i64 %n) {
; CHECK-LABEL: @test_icmp_trunc3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[N:%.*]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[CONV]], 96
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[RET:%.*]] = and i64 [[N]], 127
; CHECK-NEXT: ret i64 [[RET]]
; CHECK: if.else:
; CHECK-NEXT: ret i64 0
;
entry:
%conv = trunc i64 %n to i32
%cmp = icmp ult i32 %conv, 96
br i1 %cmp, label %if.then, label %if.else
if.then:
%ret = and i64 %n, 4294967295
ret i64 %ret
if.else:
ret i64 0
}
define i8 @test_icmp_trunc4(i64 %n) {
; CHECK-LABEL: @test_icmp_trunc4(
; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[N:%.*]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[CONV]], 10
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[CONV2:%.*]] = trunc i64 [[N]] to i8
; CHECK-NEXT: [[ADD:%.*]] = or disjoint i8 [[CONV2]], 48
; CHECK-NEXT: ret i8 [[ADD]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 0
;
%conv = trunc i64 %n to i32
%cmp = icmp ult i32 %conv, 10
br i1 %cmp, label %if.then, label %if.else
if.then:
%conv2 = trunc i64 %n to i8
%add = add i8 %conv2, 48
ret i8 %add
if.else:
ret i8 0
}
define i64 @test_icmp_trunc5(i64 %n) {
; CHECK-LABEL: @test_icmp_trunc5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SHR:%.*]] = ashr i64 [[N:%.*]], 47
; CHECK-NEXT: [[CONV1:%.*]] = trunc nsw i64 [[SHR]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[CONV1]], -13
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[TMP0:%.*]] = and i64 [[SHR]], 15
; CHECK-NEXT: [[NOT:%.*]] = xor i64 [[TMP0]], 15
; CHECK-NEXT: ret i64 [[NOT]]
; CHECK: if.else:
; CHECK-NEXT: ret i64 13
;
entry:
%shr = ashr i64 %n, 47
%conv1 = trunc i64 %shr to i32
%cmp = icmp ugt i32 %conv1, -13
br i1 %cmp, label %if.then, label %if.else
if.then:
%and = and i64 %shr, 4294967295
%not = xor i64 %and, 4294967295
ret i64 %not
if.else:
ret i64 13
}
define i1 @test_icmp_or_distjoint(i8 %n, i1 %other) {
; CHECK-LABEL: @test_icmp_or_distjoint(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or disjoint i8 [[N:%.*]], 16
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_OR]], -111
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i1 true
; CHECK: if.else:
; CHECK-NEXT: ret i1 [[OTHER:%.*]]
;
entry:
%n_or = or disjoint i8 %n, 16
%cmp = icmp ugt i8 %n_or, 145
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = icmp slt i8 %n, 0
ret i1 %r
if.else:
ret i1 %other
}
define i1 @test_icmp_or_fail_missing_disjoint(i8 %n, i1 %other) {
; CHECK-LABEL: @test_icmp_or_fail_missing_disjoint(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or i8 [[N:%.*]], 16
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_OR]], -111
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = icmp slt i8 [[N]], 0
; CHECK-NEXT: ret i1 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i1 [[OTHER:%.*]]
;
entry:
%n_or = or i8 %n, 16
%cmp = icmp ugt i8 %n_or, 145
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = icmp slt i8 %n, 0
ret i1 %r
if.else:
ret i1 %other
}
define i8 @and_eq_bits_must_be_set(i8 %x, i8 %y) {
; CHECK-LABEL: @and_eq_bits_must_be_set(
; CHECK-NEXT: [[XY:%.*]] = and i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 123
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i8 1
;
%xy = and i8 %x, %y
%cmp = icmp eq i8 %xy, 123
call void @llvm.assume(i1 %cmp)
%r = and i8 %x, 1
ret i8 %r
}
define i8 @test_icmp_or(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_or(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_OR]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 0
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_or = or i8 %n, %n2
%cmp = icmp ult i8 %n_or, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_or2(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_or2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_OR]], 14
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 0
;
entry:
%n_or = or i8 %n, %n2
%cmp = icmp uge i8 %n_or, 15
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i8 %other
if.else:
%r = and i8 %n, 32
ret i8 %r
}
define i8 @test_icmp_or_fail_bad_range(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_or_fail_bad_range(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_OR]], 33
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_or = or i8 %n, %n2
%cmp = icmp ule i8 %n_or, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_or_fail_bad_pred(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_or_fail_bad_pred(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_OR:%.*]] = or i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_OR]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_or = or i8 %n, %n2
%cmp = icmp ugt i8 %n_or, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_and(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_and(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_AND:%.*]] = and i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_AND]], -33
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 32
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_and = and i8 %n, %n2
%cmp = icmp ugt i8 %n_and, 223
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_and2(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_and2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_AND:%.*]] = and i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_AND]], -31
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 32
;
entry:
%n_and = and i8 %n, %n2
%cmp = icmp ule i8 %n_and, 224
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i8 %other
if.else:
%r = and i8 %n, 32
ret i8 %r
}
define i8 @test_icmp_and_fail_bad_range(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_and_fail_bad_range(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_AND:%.*]] = and i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_AND]], -34
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_and = and i8 %n, %n2
%cmp = icmp uge i8 %n_and, 223
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_and_fail_bad_pred(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_and_fail_bad_pred(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_AND:%.*]] = and i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[N_AND]], 31
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_and = and i8 %n, %n2
%cmp = icmp sge i8 %n_and, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @and_eq_bits_must_be_set2(i8 %x, i8 %y) {
; CHECK-LABEL: @and_eq_bits_must_be_set2(
; CHECK-NEXT: [[XY:%.*]] = and i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 123
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i8 11
;
%xy = and i8 %x, %y
%cmp = icmp eq i8 %xy, 123
call void @llvm.assume(i1 %cmp)
%r = and i8 %y, 11
ret i8 %r
}
define i8 @and_eq_bits_must_be_set2_partial_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @and_eq_bits_must_be_set2_partial_fail(
; CHECK-NEXT: [[XY:%.*]] = and i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 123
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[Y]], 111
; CHECK-NEXT: ret i8 [[R]]
;
%xy = and i8 %x, %y
%cmp = icmp eq i8 %xy, 123
call void @llvm.assume(i1 %cmp)
%r = and i8 %y, 111
ret i8 %r
}
define i8 @or_eq_bits_must_be_unset(i8 %x, i8 %y) {
; CHECK-LABEL: @or_eq_bits_must_be_unset(
; CHECK-NEXT: [[XY:%.*]] = or i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 124
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i8 0
;
%xy = or i8 %x, %y
%cmp = icmp eq i8 %xy, 124
call void @llvm.assume(i1 %cmp)
%r = and i8 %x, 3
ret i8 %r
}
define i8 @or_eq_bits_must_be_unset2(i8 %x, i8 %y) {
; CHECK-LABEL: @or_eq_bits_must_be_unset2(
; CHECK-NEXT: [[XY:%.*]] = or i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 124
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i8 0
;
%xy = or i8 %x, %y
%cmp = icmp eq i8 %xy, 124
call void @llvm.assume(i1 %cmp)
%r = and i8 %y, 1
ret i8 %r
}
define i8 @or_eq_bits_must_be_unset2_partial_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @or_eq_bits_must_be_unset2_partial_fail(
; CHECK-NEXT: [[XY:%.*]] = or i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i8 [[XY]], 124
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[Y]], 4
; CHECK-NEXT: ret i8 [[R]]
;
%xy = or i8 %x, %y
%cmp = icmp eq i8 %xy, 124
call void @llvm.assume(i1 %cmp)
%r = and i8 %y, 7
ret i8 %r
}
define i8 @or_ne_bits_must_be_unset2_fail(i8 %x, i8 %y) {
; CHECK-LABEL: @or_ne_bits_must_be_unset2_fail(
; CHECK-NEXT: [[XY:%.*]] = or i8 [[X:%.*]], [[Y:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[XY]], 124
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[X]], 3
; CHECK-NEXT: ret i8 [[R]]
;
%xy = or i8 %x, %y
%cmp = icmp ne i8 %xy, 124
call void @llvm.assume(i1 %cmp)
%r = and i8 %x, 3
ret i8 %r
}
declare void @use.i1(i1)
declare void @use.i8(i8)
declare void @use.2xi1(<2 x i1>)
define i1 @extract_value_uadd(<2 x i8> %xx, <2 x i8> %yy) {
; CHECK-LABEL: @extract_value_uadd(
; CHECK-NEXT: [[X0:%.*]] = and <2 x i8> [[XX:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[Y0:%.*]] = and <2 x i8> [[YY:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[X:%.*]] = add nuw <2 x i8> [[X0]], <i8 1, i8 0>
; CHECK-NEXT: [[Y:%.*]] = add nuw <2 x i8> [[Y0]], <i8 1, i8 0>
; CHECK-NEXT: [[ADD_UOV:%.*]] = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow.v2i8(<2 x i8> [[X]], <2 x i8> [[Y]])
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 1
; CHECK-NEXT: call void @use.2xi1(<2 x i1> [[UOV]])
; CHECK-NEXT: ret i1 false
;
%x0 = and <2 x i8> %xx, <i8 63, i8 255>
%y0 = and <2 x i8> %yy, <i8 63, i8 255>
%x = add nuw <2 x i8> %x0, <i8 1, i8 0>
%y = add nuw <2 x i8> %y0, <i8 1, i8 0>
%add_uov = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow(<2 x i8> %x, <2 x i8> %y)
%add = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 0
%uov = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 1
call void @use.2xi1(<2 x i1> %uov)
%add_ele = extractelement <2 x i8> %add, i32 0
%r = icmp eq i8 %add_ele, 0
ret i1 %r
}
define i1 @extract_value_uadd2(<2 x i8> %xx, <2 x i8> %yy) {
; CHECK-LABEL: @extract_value_uadd2(
; CHECK-NEXT: [[X0:%.*]] = and <2 x i8> [[XX:%.*]], <i8 -1, i8 63>
; CHECK-NEXT: [[Y0:%.*]] = and <2 x i8> [[YY:%.*]], <i8 -1, i8 63>
; CHECK-NEXT: [[X:%.*]] = add nuw <2 x i8> [[X0]], <i8 0, i8 1>
; CHECK-NEXT: [[Y:%.*]] = add nuw <2 x i8> [[Y0]], <i8 0, i8 1>
; CHECK-NEXT: [[ADD_UOV:%.*]] = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow.v2i8(<2 x i8> [[X]], <2 x i8> [[Y]])
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 1
; CHECK-NEXT: call void @use.2xi1(<2 x i1> [[UOV]])
; CHECK-NEXT: ret i1 false
;
%x0 = and <2 x i8> %xx, <i8 255, i8 63>
%y0 = and <2 x i8> %yy, <i8 255, i8 63>
%x = add nuw <2 x i8> %x0, <i8 0, i8 1>
%y = add nuw <2 x i8> %y0, <i8 0, i8 1>
%add_uov = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow(<2 x i8> %x, <2 x i8> %y)
%add = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 0
%uov = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 1
call void @use.2xi1(<2 x i1> %uov)
%add_ele = extractelement <2 x i8> %add, i32 1
%r = icmp eq i8 %add_ele, 0
ret i1 %r
}
define i1 @extract_value_uadd_fail(<2 x i8> %xx, <2 x i8> %yy) {
; CHECK-LABEL: @extract_value_uadd_fail(
; CHECK-NEXT: [[X0:%.*]] = and <2 x i8> [[XX:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[Y0:%.*]] = and <2 x i8> [[YY:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[X:%.*]] = add nuw <2 x i8> [[X0]], <i8 1, i8 0>
; CHECK-NEXT: [[Y:%.*]] = add nuw <2 x i8> [[Y0]], <i8 1, i8 0>
; CHECK-NEXT: [[ADD_UOV:%.*]] = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow.v2i8(<2 x i8> [[X]], <2 x i8> [[Y]])
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 1
; CHECK-NEXT: call void @use.2xi1(<2 x i1> [[UOV]])
; CHECK-NEXT: [[ADD_ELE:%.*]] = extractelement <2 x i8> [[ADD]], i64 1
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[ADD_ELE]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x0 = and <2 x i8> %xx, <i8 63, i8 255>
%y0 = and <2 x i8> %yy, <i8 63, i8 255>
%x = add nuw <2 x i8> %x0, <i8 1, i8 0>
%y = add nuw <2 x i8> %y0, <i8 1, i8 0>
%add_uov = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow(<2 x i8> %x, <2 x i8> %y)
%add = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 0
%uov = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 1
call void @use.2xi1(<2 x i1> %uov)
%add_ele = extractelement <2 x i8> %add, i32 1
%r = icmp eq i8 %add_ele, 0
ret i1 %r
}
define i1 @extract_value_uadd_fail2(<2 x i8> %xx, <2 x i8> %yy, i32 %idx) {
; CHECK-LABEL: @extract_value_uadd_fail2(
; CHECK-NEXT: [[X0:%.*]] = and <2 x i8> [[XX:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[Y0:%.*]] = and <2 x i8> [[YY:%.*]], <i8 63, i8 -1>
; CHECK-NEXT: [[X:%.*]] = add nuw <2 x i8> [[X0]], <i8 1, i8 0>
; CHECK-NEXT: [[Y:%.*]] = add nuw <2 x i8> [[Y0]], <i8 1, i8 0>
; CHECK-NEXT: [[ADD_UOV:%.*]] = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow.v2i8(<2 x i8> [[X]], <2 x i8> [[Y]])
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 1
; CHECK-NEXT: call void @use.2xi1(<2 x i1> [[UOV]])
; CHECK-NEXT: [[ADD_ELE:%.*]] = extractelement <2 x i8> [[ADD]], i32 [[IDX:%.*]]
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[ADD_ELE]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x0 = and <2 x i8> %xx, <i8 63, i8 255>
%y0 = and <2 x i8> %yy, <i8 63, i8 255>
%x = add nuw <2 x i8> %x0, <i8 1, i8 0>
%y = add nuw <2 x i8> %y0, <i8 1, i8 0>
%add_uov = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow(<2 x i8> %x, <2 x i8> %y)
%add = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 0
%uov = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 1
call void @use.2xi1(<2 x i1> %uov)
%add_ele = extractelement <2 x i8> %add, i32 %idx
%r = icmp eq i8 %add_ele, 0
ret i1 %r
}
define i1 @extract_value_uadd_fail3(<2 x i8> %xx, <2 x i8> %yy) {
; CHECK-LABEL: @extract_value_uadd_fail3(
; CHECK-NEXT: [[X0:%.*]] = and <2 x i8> [[XX:%.*]], <i8 127, i8 127>
; CHECK-NEXT: [[Y0:%.*]] = and <2 x i8> [[YY:%.*]], <i8 127, i8 127>
; CHECK-NEXT: [[X:%.*]] = add nuw <2 x i8> [[X0]], <i8 1, i8 1>
; CHECK-NEXT: [[Y:%.*]] = add nuw <2 x i8> [[Y0]], <i8 1, i8 1>
; CHECK-NEXT: [[ADD_UOV:%.*]] = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow.v2i8(<2 x i8> [[X]], <2 x i8> [[Y]])
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { <2 x i8>, <2 x i1> } [[ADD_UOV]], 1
; CHECK-NEXT: call void @use.2xi1(<2 x i1> [[UOV]])
; CHECK-NEXT: [[ADD_ELE:%.*]] = extractelement <2 x i8> [[ADD]], i64 0
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[ADD_ELE]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x0 = and <2 x i8> %xx, <i8 127, i8 127>
%y0 = and <2 x i8> %yy, <i8 127, i8 127>
%x = add nuw <2 x i8> %x0, <i8 1, i8 1>
%y = add nuw <2 x i8> %y0, <i8 1, i8 1>
%add_uov = call { <2 x i8>, <2 x i1> } @llvm.uadd.with.overflow(<2 x i8> %x, <2 x i8> %y)
%add = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 0
%uov = extractvalue { <2 x i8>, <2 x i1> } %add_uov, 1
call void @use.2xi1(<2 x i1> %uov)
%add_ele = extractelement <2 x i8> %add, i32 0
%r = icmp eq i8 %add_ele, 0
ret i1 %r
}
define i1 @extract_value_sadd(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_sadd(
; CHECK-NEXT: [[X:%.*]] = add nuw i8 [[XX:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
; CHECK-NEXT: [[X_LEMMA:%.*]] = icmp sgt i8 [[X]], -1
; CHECK-NEXT: [[Y_LEMMA:%.*]] = icmp sgt i8 [[Y]], -1
; CHECK-NEXT: call void @llvm.assume(i1 [[X_LEMMA]])
; CHECK-NEXT: call void @llvm.assume(i1 [[Y_LEMMA]])
; CHECK-NEXT: [[ADD_SOV:%.*]] = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[ADD_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: ret i1 false
;
%x = add nuw i8 %xx, 1
%y = add nuw i8 %yy, 1
%x_lemma = icmp ult i8 %x, 128
%y_lemma = icmp ult i8 %y, 128
call void @llvm.assume(i1 %x_lemma)
call void @llvm.assume(i1 %y_lemma)
%add_sov = call { i8, i1 } @llvm.sadd.with.overflow(i8 %x, i8 %y)
%add = extractvalue { i8, i1 } %add_sov, 0
%sov = extractvalue { i8, i1 } %add_sov, 1
call void @use.i1(i1 %sov)
%r = icmp eq i8 %add, 0
ret i1 %r
}
define i1 @extract_value_sadd_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_sadd_fail(
; CHECK-NEXT: [[X:%.*]] = add i8 [[XX:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add i8 [[YY:%.*]], 1
; CHECK-NEXT: [[ADD_SOV:%.*]] = call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[ADD:%.*]] = extractvalue { i8, i1 } [[ADD_SOV]], 0
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[ADD_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[ADD]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x = add i8 %xx, 1
%y = add i8 %yy, 1
%add_sov = call { i8, i1 } @llvm.sadd.with.overflow(i8 %x, i8 %y)
%add = extractvalue { i8, i1 } %add_sov, 0
%sov = extractvalue { i8, i1 } %add_sov, 1
call void @use.i1(i1 %sov)
%r = icmp eq i8 %add, 0
ret i1 %r
}
define i1 @extract_value_usub(i8 %x, i8 %zz) {
; CHECK-LABEL: @extract_value_usub(
; CHECK-NEXT: [[Z:%.*]] = add nuw i8 [[ZZ:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add i8 [[X:%.*]], [[Z]]
; CHECK-NEXT: [[SUB_UOV:%.*]] = call { i8, i1 } @llvm.usub.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i8, i1 } [[SUB_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { i8, i1 } [[SUB_UOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[UOV]])
; CHECK-NEXT: call void @use.i8(i8 [[SUB]])
; CHECK-NEXT: ret i1 false
;
%z = add nuw i8 %zz, 1
%y = add i8 %x, %z
%sub_uov = call { i8, i1 } @llvm.usub.with.overflow(i8 %x, i8 %y)
%sub = extractvalue { i8, i1 } %sub_uov, 0
%uov = extractvalue { i8, i1 } %sub_uov, 1
call void @use.i1(i1 %uov)
call void @use.i8(i8 %sub)
%r = icmp eq i8 %sub, 0
ret i1 %r
}
define i1 @extract_value_usub_fail(i8 %x, i8 %z) {
; CHECK-LABEL: @extract_value_usub_fail(
; CHECK-NEXT: [[Y:%.*]] = add i8 [[X:%.*]], [[Z:%.*]]
; CHECK-NEXT: [[SUB_UOV:%.*]] = call { i8, i1 } @llvm.usub.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i8, i1 } [[SUB_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { i8, i1 } [[SUB_UOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[UOV]])
; CHECK-NEXT: call void @use.i8(i8 [[SUB]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SUB]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%y = add i8 %x, %z
%sub_uov = call { i8, i1 } @llvm.usub.with.overflow(i8 %x, i8 %y)
%sub = extractvalue { i8, i1 } %sub_uov, 0
%uov = extractvalue { i8, i1 } %sub_uov, 1
call void @use.i1(i1 %uov)
call void @use.i8(i8 %sub)
%r = icmp eq i8 %sub, 0
ret i1 %r
}
define i1 @extract_value_ssub(i8 %x, i8 %zz) {
; CHECK-LABEL: @extract_value_ssub(
; CHECK-NEXT: [[Z:%.*]] = add nuw i8 [[ZZ:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add i8 [[X:%.*]], [[Z]]
; CHECK-NEXT: [[SUB_SOV:%.*]] = call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 [[Y]], i8 [[X]])
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i8, i1 } [[SUB_SOV]], 0
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[SUB_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: call void @use.i8(i8 [[SUB]])
; CHECK-NEXT: ret i1 false
;
%z = add nuw i8 %zz, 1
%y = add i8 %x, %z
%sub_sov = call { i8, i1 } @llvm.ssub.with.overflow(i8 %y, i8 %x)
%sub = extractvalue { i8, i1 } %sub_sov, 0
%sov = extractvalue { i8, i1 } %sub_sov, 1
call void @use.i1(i1 %sov)
call void @use.i8(i8 %sub)
%r = icmp eq i8 %sub, 0
ret i1 %r
}
define i1 @extract_value_ssub_fail(i8 %x) {
; CHECK-LABEL: @extract_value_ssub_fail(
; CHECK-NEXT: [[SUB_SOV:%.*]] = call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 10, i8 [[X:%.*]])
; CHECK-NEXT: [[SUB:%.*]] = extractvalue { i8, i1 } [[SUB_SOV]], 0
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[SUB_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: call void @use.i8(i8 [[SUB]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[SUB]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%sub_sov = call { i8, i1 } @llvm.ssub.with.overflow(i8 10, i8 %x)
%sub = extractvalue { i8, i1 } %sub_sov, 0
%sov = extractvalue { i8, i1 } %sub_sov, 1
call void @use.i1(i1 %sov)
call void @use.i8(i8 %sub)
%r = icmp eq i8 %sub, 0
ret i1 %r
}
define i1 @extract_value_umul(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_umul(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
; CHECK-NEXT: [[MUL_UOV:%.*]] = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i8, i1 } [[MUL_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { i8, i1 } [[MUL_UOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[UOV]])
; CHECK-NEXT: call void @use.i8(i8 [[MUL]])
; CHECK-NEXT: ret i1 false
;
%x = or i8 %xx, 1
%y = add nuw i8 %yy, 1
%mul_uov = call { i8, i1 } @llvm.umul.with.overflow(i8 %x, i8 %y)
%mul = extractvalue { i8, i1 } %mul_uov, 0
%uov = extractvalue { i8, i1 } %mul_uov, 1
call void @use.i1(i1 %uov)
call void @use.i8(i8 %mul)
%r = icmp eq i8 %mul, 0
ret i1 %r
}
define i1 @extract_value_umul_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_umul_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], 2
; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
; CHECK-NEXT: [[MUL_UOV:%.*]] = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 [[X]], i8 [[Y]])
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i8, i1 } [[MUL_UOV]], 0
; CHECK-NEXT: [[UOV:%.*]] = extractvalue { i8, i1 } [[MUL_UOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[UOV]])
; CHECK-NEXT: call void @use.i8(i8 [[MUL]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[MUL]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, 2
%y = add nuw i8 %yy, 1
%mul_uov = call { i8, i1 } @llvm.umul.with.overflow(i8 %x, i8 %y)
%mul = extractvalue { i8, i1 } %mul_uov, 0
%uov = extractvalue { i8, i1 } %mul_uov, 1
call void @use.i1(i1 %uov)
call void @use.i8(i8 %mul)
%r = icmp eq i8 %mul, 0
ret i1 %r
}
define i1 @extract_value_smul(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_smul(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add nuw i8 [[YY:%.*]], 1
; CHECK-NEXT: [[MUL_SOV:%.*]] = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 [[Y]], i8 [[X]])
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i8, i1 } [[MUL_SOV]], 0
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[MUL_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: call void @use.i8(i8 [[MUL]])
; CHECK-NEXT: ret i1 false
;
%x = or i8 %xx, 1
%y = add nuw i8 %yy, 1
%mul_sov = call { i8, i1 } @llvm.smul.with.overflow(i8 %y, i8 %x)
%mul = extractvalue { i8, i1 } %mul_sov, 0
%sov = extractvalue { i8, i1 } %mul_sov, 1
call void @use.i1(i1 %sov)
call void @use.i8(i8 %mul)
%r = icmp eq i8 %mul, 0
ret i1 %r
}
define i1 @extract_value_smul_fail(i8 %xx, i8 %yy) {
; CHECK-LABEL: @extract_value_smul_fail(
; CHECK-NEXT: [[X:%.*]] = or i8 [[XX:%.*]], 1
; CHECK-NEXT: [[Y:%.*]] = add i8 [[YY:%.*]], 1
; CHECK-NEXT: [[MUL_SOV:%.*]] = call { i8, i1 } @llvm.smul.with.overflow.i8(i8 [[Y]], i8 [[X]])
; CHECK-NEXT: [[MUL:%.*]] = extractvalue { i8, i1 } [[MUL_SOV]], 0
; CHECK-NEXT: [[SOV:%.*]] = extractvalue { i8, i1 } [[MUL_SOV]], 1
; CHECK-NEXT: call void @use.i1(i1 [[SOV]])
; CHECK-NEXT: call void @use.i8(i8 [[MUL]])
; CHECK-NEXT: [[R:%.*]] = icmp eq i8 [[MUL]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%x = or i8 %xx, 1
%y = add i8 %yy, 1
%mul_sov = call { i8, i1 } @llvm.smul.with.overflow(i8 %y, i8 %x)
%mul = extractvalue { i8, i1 } %mul_sov, 0
%sov = extractvalue { i8, i1 } %mul_sov, 1
call void @use.i1(i1 %sov)
call void @use.i8(i8 %mul)
%r = icmp eq i8 %mul, 0
ret i1 %r
}
define i8 @known_reduce_or(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_or(
; CHECK-NEXT: ret i8 1
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.or(<2 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @known_reduce_or_fail(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_or_fail(
; CHECK-NEXT: [[X:%.*]] = or <2 x i8> [[XX:%.*]], <i8 5, i8 3>
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.or.v2i8(<2 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 4
; CHECK-NEXT: ret i8 [[R]]
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.or(<2 x i8> %x)
%r = and i8 %v, 4
ret i8 %r
}
define i8 @known_reduce_and(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_and(
; CHECK-NEXT: ret i8 1
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.and(<2 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @known_reduce_and_fail(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_and_fail(
; CHECK-NEXT: [[X:%.*]] = or <2 x i8> [[XX:%.*]], <i8 5, i8 3>
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.and.v2i8(<2 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 2
; CHECK-NEXT: ret i8 [[R]]
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.and(<2 x i8> %x)
%r = and i8 %v, 2
ret i8 %r
}
define i8 @known_reduce_xor_even(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_even(
; CHECK-NEXT: ret i8 0
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.xor(<2 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @known_reduce_xor_even2(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_even2(
; CHECK-NEXT: ret i8 0
;
%x = and <2 x i8> %xx, <i8 15, i8 15>
%v = call i8 @llvm.vector.reduce.xor(<2 x i8> %x)
%r = and i8 %v, 16
ret i8 %r
}
define i8 @known_reduce_xor_even_fail(<2 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_even_fail(
; CHECK-NEXT: [[X:%.*]] = or <2 x i8> [[XX:%.*]], <i8 5, i8 3>
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.xor.v2i8(<2 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 2
; CHECK-NEXT: ret i8 [[R]]
;
%x = or <2 x i8> %xx, <i8 5, i8 3>
%v = call i8 @llvm.vector.reduce.xor(<2 x i8> %x)
%r = and i8 %v, 2
ret i8 %r
}
define i8 @known_reduce_xor_odd(<3 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_odd(
; CHECK-NEXT: ret i8 1
;
%x = or <3 x i8> %xx, <i8 5, i8 3, i8 9>
%v = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @known_reduce_xor_odd2(<3 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_odd2(
; CHECK-NEXT: ret i8 0
;
%x = and <3 x i8> %xx, <i8 15, i8 15, i8 31>
%v = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> %x)
%r = and i8 %v, 32
ret i8 %r
}
define i8 @known_reduce_xor_odd2_fail(<3 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_odd2_fail(
; CHECK-NEXT: [[X:%.*]] = and <3 x i8> [[XX:%.*]], <i8 15, i8 15, i8 31>
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 16
; CHECK-NEXT: ret i8 [[R]]
;
%x = and <3 x i8> %xx, <i8 15, i8 15, i8 31>
%v = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> %x)
%r = and i8 %v, 16
ret i8 %r
}
define i8 @known_reduce_xor_odd_fail(<3 x i8> %xx) {
; CHECK-LABEL: @known_reduce_xor_odd_fail(
; CHECK-NEXT: [[X:%.*]] = or <3 x i8> [[XX:%.*]], <i8 5, i8 3, i8 9>
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 2
; CHECK-NEXT: ret i8 [[R]]
;
%x = or <3 x i8> %xx, <i8 5, i8 3, i8 9>
%v = call i8 @llvm.vector.reduce.xor.v3i8(<3 x i8> %x)
%r = and i8 %v, 2
ret i8 %r
}
define i8 @nonzero_reduce_xor_vscale_even(<vscale x 2 x i8> %xx) {
; CHECK-LABEL: @nonzero_reduce_xor_vscale_even(
; CHECK-NEXT: ret i8 0
;
%one = insertelement <vscale x 2 x i8> poison, i8 1, i64 0
%ones = shufflevector <vscale x 2 x i8> %one, <vscale x 2 x i8> poison, <vscale x 2 x i32> zeroinitializer
%x = or <vscale x 2 x i8> %xx, %ones
%v = call i8 @llvm.vector.reduce.xor.nxv2i8(<vscale x 2 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @nonzero_reduce_xor_vscale_odd_fail(<vscale x 3 x i8> %xx) {
; CHECK-LABEL: @nonzero_reduce_xor_vscale_odd_fail(
; CHECK-NEXT: [[X:%.*]] = or <vscale x 3 x i8> [[XX:%.*]], shufflevector (<vscale x 3 x i8> insertelement (<vscale x 3 x i8> poison, i8 1, i64 0), <vscale x 3 x i8> poison, <vscale x 3 x i32> zeroinitializer)
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.xor.nxv3i8(<vscale x 3 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 1
; CHECK-NEXT: ret i8 [[R]]
;
%one = insertelement <vscale x 3 x i8> poison, i8 1, i64 0
%ones = shufflevector <vscale x 3 x i8> %one, <vscale x 3 x i8> poison, <vscale x 3 x i32> zeroinitializer
%x = or <vscale x 3 x i8> %xx, %ones
%v = call i8 @llvm.vector.reduce.xor.nxv3i8(<vscale x 3 x i8> %x)
%r = and i8 %v, 1
ret i8 %r
}
define i8 @nonzero_reduce_xor_vscale_even_fail(<vscale x 2 x i8> %xx) {
; CHECK-LABEL: @nonzero_reduce_xor_vscale_even_fail(
; CHECK-NEXT: [[X:%.*]] = or <vscale x 2 x i8> [[XX:%.*]], shufflevector (<vscale x 2 x i8> insertelement (<vscale x 2 x i8> poison, i8 1, i64 0), <vscale x 2 x i8> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[V:%.*]] = call i8 @llvm.vector.reduce.xor.nxv2i8(<vscale x 2 x i8> [[X]])
; CHECK-NEXT: [[R:%.*]] = and i8 [[V]], 2
; CHECK-NEXT: ret i8 [[R]]
;
%one = insertelement <vscale x 2 x i8> poison, i8 1, i64 0
%ones = shufflevector <vscale x 2 x i8> %one, <vscale x 2 x i8> poison, <vscale x 2 x i32> zeroinitializer
%x = or <vscale x 2 x i8> %xx, %ones
%v = call i8 @llvm.vector.reduce.xor.nxv2i8(<vscale x 2 x i8> %x)
%r = and i8 %v, 2
ret i8 %r
}
define i8 @nonzero_reduce_xor_vscale_odd(<vscale x 3 x i8> %xx) {
; CHECK-LABEL: @nonzero_reduce_xor_vscale_odd(
; CHECK-NEXT: ret i8 0
;
%one = insertelement <vscale x 3 x i8> poison, i8 1, i64 0
%ones = shufflevector <vscale x 3 x i8> %one, <vscale x 3 x i8> poison, <vscale x 3 x i32> zeroinitializer
%x = and <vscale x 3 x i8> %xx, %ones
%v = call i8 @llvm.vector.reduce.xor.nxv3i8(<vscale x 3 x i8> %x)
%r = and i8 %v, 2
ret i8 %r
}
define i1 @test_sign_pos(float %x) {
; CHECK-LABEL: @test_sign_pos(
; CHECK-NEXT: ret i1 true
;
%fabs = call float @llvm.fabs.f32(float %x)
%y = bitcast float %fabs to i32
%sign = icmp sgt i32 %y, -1
ret i1 %sign
}
define i1 @test_sign_pos_half(half %x) {
; CHECK-LABEL: @test_sign_pos_half(
; CHECK-NEXT: ret i1 true
;
%fabs = call half @llvm.fabs.f16(half %x)
%y = bitcast half %fabs to i16
%sign = icmp sgt i16 %y, -1
ret i1 %sign
}
define i1 @test_sign_pos_half_non_elementwise(<2 x half> %x) {
; CHECK-LABEL: @test_sign_pos_half_non_elementwise(
; CHECK-NEXT: [[FABS:%.*]] = call <2 x half> @llvm.fabs.v2f16(<2 x half> [[X:%.*]])
; CHECK-NEXT: [[Y:%.*]] = bitcast <2 x half> [[FABS]] to i32
; CHECK-NEXT: [[SIGN:%.*]] = icmp sgt i32 [[Y]], -1
; CHECK-NEXT: ret i1 [[SIGN]]
;
%fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
%y = bitcast <2 x half> %fabs to i32
%sign = icmp sgt i32 %y, -1
ret i1 %sign
}
define i1 @test_sign_neg(float %x) {
; CHECK-LABEL: @test_sign_neg(
; CHECK-NEXT: ret i1 true
;
%fabs = call float @llvm.fabs.f32(float %x)
%fnabs = fneg float %fabs
%y = bitcast float %fnabs to i32
%sign = icmp slt i32 %y, 0
ret i1 %sign
}
define <2 x i1> @test_sign_pos_vec(<2 x float> %x) {
; CHECK-LABEL: @test_sign_pos_vec(
; CHECK-NEXT: ret <2 x i1> zeroinitializer
;
%fabs = call <2 x float> @llvm.fabs.v2f32(<2 x float> %x)
%y = bitcast <2 x float> %fabs to <2 x i32>
%sign = icmp slt <2 x i32> %y, zeroinitializer
ret <2 x i1> %sign
}
define i32 @test_inf_only(float nofpclass(nan sub norm zero) %x) {
; CHECK-LABEL: @test_inf_only(
; CHECK-NEXT: ret i32 2139095040
;
%y = bitcast float %x to i32
%and = and i32 %y, 2147483647
ret i32 %and
}
define i16 @test_inf_only_bfloat(bfloat nofpclass(nan sub norm zero) %x) {
; CHECK-LABEL: @test_inf_only_bfloat(
; CHECK-NEXT: ret i16 32640
;
%y = bitcast bfloat %x to i16
%and = and i16 %y, 32767
ret i16 %and
}
define i128 @test_inf_only_ppc_fp128(ppc_fp128 nofpclass(nan sub norm zero) %x) {
; CHECK-LABEL: @test_inf_only_ppc_fp128(
; CHECK-NEXT: ret i128 9218868437227405312
;
%y = bitcast ppc_fp128 %x to i128
%and = and i128 %y, 170141183460469231731687303715884105727
ret i128 %and
}
define i32 @test_zero_only(float nofpclass(nan sub norm inf) %x) {
; CHECK-LABEL: @test_zero_only(
; CHECK-NEXT: ret i32 0
;
%y = bitcast float %x to i32
%and = and i32 %y, 2147483647
ret i32 %and
}
define i80 @test_zero_only_non_ieee(x86_fp80 nofpclass(nan sub norm inf) %x) {
; CHECK-LABEL: @test_zero_only_non_ieee(
; CHECK-NEXT: ret i80 0
;
%y = bitcast x86_fp80 %x to i80
%and = and i80 %y, 604462909807314587353087
ret i80 %and
}
define i32 @test_inf_nan_only(float nofpclass(sub norm zero) %x) {
; CHECK-LABEL: @test_inf_nan_only(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 2130706432
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 2130706432
ret i32 %and
}
define i32 @test_sub_zero_only(float nofpclass(nan norm inf) %x) {
; CHECK-LABEL: @test_sub_zero_only(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 2130706432
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 2130706432
ret i32 %and
}
define i32 @test_inf_zero_only(float nofpclass(nan norm sub) %x) {
; CHECK-LABEL: @test_inf_zero_only(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 8388608
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 16777215
ret i32 %and
}
; Make sure that the signbit is cleared.
define i32 @test_ninf_only(double %x) {
; CHECK-LABEL: @test_ninf_only(
; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[X:%.*]], 0xFFF0000000000000
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i32 0
; CHECK: if.else:
; CHECK-NEXT: ret i32 0
;
%cmp = fcmp oeq double %x, 0xFFF0000000000000
br i1 %cmp, label %if.then, label %if.else
if.then:
%cast = bitcast double %x to i64
%trunc = trunc i64 %cast to i32
ret i32 %trunc
if.else:
ret i32 0
}
define i1 @test_simplify_icmp(i32 %x) {
; CHECK-LABEL: @test_simplify_icmp(
; CHECK-NEXT: ret i1 false
;
%cast1 = uitofp i32 %x to double
%cast2 = bitcast double %cast1 to i64
%mask = and i64 %cast2, -140737488355328
%cmp = icmp eq i64 %mask, -1970324836974592
ret i1 %cmp
}
define i32 @test_snan_quiet_bit1(float nofpclass(sub norm inf qnan) %x) {
; CHECK-LABEL: @test_snan_quiet_bit1(
; CHECK-NEXT: [[BITS:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[MASKED:%.*]] = and i32 [[BITS]], 4194304
; CHECK-NEXT: ret i32 [[MASKED]]
;
%bits = bitcast float %x to i32
%masked = and i32 %bits, 4194304
ret i32 %masked
}
define i32 @test_snan_quiet_bit2(float nofpclass(sub norm inf qnan) %x) {
; CHECK-LABEL: @test_snan_quiet_bit2(
; CHECK-NEXT: [[BITS:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[MASKED:%.*]] = and i32 [[BITS]], 2097152
; CHECK-NEXT: ret i32 [[MASKED]]
;
%bits = bitcast float %x to i32
%masked = and i32 %bits, 2097152
ret i32 %masked
}
define i32 @test_qnan_quiet_bit1(float nofpclass(sub norm inf snan) %x) {
; CHECK-LABEL: @test_qnan_quiet_bit1(
; CHECK-NEXT: [[BITS:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[MASKED:%.*]] = and i32 [[BITS]], 4194304
; CHECK-NEXT: ret i32 [[MASKED]]
;
%bits = bitcast float %x to i32
%masked = and i32 %bits, 4194304
ret i32 %masked
}
define i32 @test_qnan_quiet_bit2(float nofpclass(sub norm inf snan) %x) {
; CHECK-LABEL: @test_qnan_quiet_bit2(
; CHECK-NEXT: [[BITS:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[MASKED:%.*]] = and i32 [[BITS]], 2097152
; CHECK-NEXT: ret i32 [[MASKED]]
;
%bits = bitcast float %x to i32
%masked = and i32 %bits, 2097152
ret i32 %masked
}
define i16 @test_simplify_mask(i32 %ui, float %x) {
; CHECK-LABEL: @test_simplify_mask(
; CHECK-NEXT: [[CONV:%.*]] = uitofp i32 [[UI:%.*]] to float
; CHECK-NEXT: [[CMP:%.*]] = fcmp olt float [[X:%.*]], [[CONV]]
; CHECK-NEXT: br i1 [[CMP]], label [[IF_ELSE:%.*]], label [[IF_END:%.*]]
; CHECK: if.end:
; CHECK-NEXT: ret i16 31744
; CHECK: if.else:
; CHECK-NEXT: ret i16 0
;
%conv = uitofp i32 %ui to float
%cmp = fcmp olt float %x, %conv
br i1 %cmp, label %if.else, label %if.end
if.end:
%cast = bitcast float %conv to i32
%shr = lshr i32 %cast, 16
%trunc = trunc i32 %shr to i16
%and = and i16 %trunc, -32768
%or = or disjoint i16 %and, 31744
ret i16 %or
if.else:
ret i16 0
}
; TODO: %cmp always evaluates to false
define i1 @test_simplify_icmp2(double %x) {
; CHECK-LABEL: @test_simplify_icmp2(
; CHECK-NEXT: [[ABS:%.*]] = tail call double @llvm.fabs.f64(double [[X:%.*]])
; CHECK-NEXT: [[COND:%.*]] = fcmp oeq double [[ABS]], 0x7FF0000000000000
; CHECK-NEXT: br i1 [[COND]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[CAST:%.*]] = bitcast double [[X]] to i64
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[CAST]], 3458764513820540928
; CHECK-NEXT: ret i1 [[CMP]]
; CHECK: if.else:
; CHECK-NEXT: ret i1 false
;
%abs = tail call double @llvm.fabs.f64(double %x)
%cond = fcmp oeq double %abs, 0x7FF0000000000000
br i1 %cond, label %if.then, label %if.else
if.then:
%cast = bitcast double %x to i64
%cmp = icmp eq i64 %cast, 3458764513820540928
ret i1 %cmp
if.else:
ret i1 false
}
define i32 @test_snan_only(float nofpclass(qnan sub norm zero inf) %x) {
; CHECK-LABEL: @test_snan_only(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 4194304
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 4194304
ret i32 %and
}
define i32 @test_qnan_only(float nofpclass(snan sub norm zero inf) %x) {
; CHECK-LABEL: @test_qnan_only(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 4194304
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 4194304
ret i32 %and
}
; Make sure that we don't crash when the use of x is unreachable.
define i64 @pr92084(double %x) {
; CHECK-LABEL: @pr92084(
; CHECK-NEXT: [[CMP:%.*]] = fcmp uno double [[X:%.*]], 0.000000e+00
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN1:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then1:
; CHECK-NEXT: br i1 true, label [[IF_ELSE]], label [[IF_THEN2:%.*]]
; CHECK: if.then2:
; CHECK-NEXT: ret i64 poison
; CHECK: if.else:
; CHECK-NEXT: ret i64 0
;
%cmp = fcmp uno double %x, 0.000000e+00
br i1 %cmp, label %if.then1, label %if.else
if.then1:
br i1 %cmp, label %if.else, label %if.then2
if.then2:
%cast = bitcast double %x to i64
%and = and i64 %cast, 1
ret i64 %and
if.else:
ret i64 0
}
define i32 @test_none(float nofpclass(all) %x) {
; CHECK-LABEL: @test_none(
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X:%.*]] to i32
; CHECK-NEXT: [[AND:%.*]] = and i32 [[Y]], 4194304
; CHECK-NEXT: ret i32 [[AND]]
;
%y = bitcast float %x to i32
%and = and i32 %y, 4194304
ret i32 %and
}
; We cannot make assumptions about the sign of result of sqrt
; when the input is a negative value (except for -0).
define i1 @pr92217() {
; CHECK-LABEL: @pr92217(
; CHECK-NEXT: [[X:%.*]] = call float @llvm.sqrt.f32(float 0xC6DEBE9E60000000)
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[Y]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
%x = call float @llvm.sqrt.f32(float 0xC6DEBE9E60000000)
%y = bitcast float %x to i32
%cmp = icmp slt i32 %y, 0
ret i1 %cmp
}
define i1 @sqrt_negative_input(float nofpclass(nan zero pnorm psub pinf) %a) {
; CHECK-LABEL: @sqrt_negative_input(
; CHECK-NEXT: [[X:%.*]] = call float @llvm.sqrt.f32(float [[A:%.*]])
; CHECK-NEXT: [[Y:%.*]] = bitcast float [[X]] to i32
; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[Y]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
%x = call float @llvm.sqrt.f32(float %a)
%y = bitcast float %x to i32
%cmp = icmp slt i32 %y, 0
ret i1 %cmp
}
define i1 @sqrt_negative_input_nnan(float nofpclass(nan zero pnorm psub pinf) %a) {
; CHECK-LABEL: @sqrt_negative_input_nnan(
; CHECK-NEXT: ret i1 false
;
%x = call nnan float @llvm.sqrt.f32(float %a)
%y = bitcast float %x to i32
%cmp = icmp slt i32 %y, 0
ret i1 %cmp
}
define i8 @test_icmp_add(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_add(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_ADD:%.*]] = add nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_ADD]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 0
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_add = add nuw i8 %n, %n2
%cmp = icmp ult i8 %n_add, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_add_fail_nsw(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_add_fail_nsw(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_ADD:%.*]] = add nsw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_ADD]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_add = add nsw i8 %n, %n2
%cmp = icmp ult i8 %n_add, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_add2(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_add2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_ADD:%.*]] = add nuw nsw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_ADD]], 14
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 0
;
entry:
%n_add = add nsw nuw i8 %n, %n2
%cmp = icmp uge i8 %n_add, 15
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i8 %other
if.else:
%r = and i8 %n, 32
ret i8 %r
}
define i8 @test_icmp_add_fail_bad_range(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_add_fail_bad_range(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_ADD:%.*]] = add nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_ADD]], 33
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_add = add nuw i8 %n, %n2
%cmp = icmp ule i8 %n_add, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_add_fail_bad_pred(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_add_fail_bad_pred(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_ADD:%.*]] = add nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_ADD]], 32
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_add = add nuw i8 %n, %n2
%cmp = icmp ugt i8 %n_add, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_sub(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_SUB]], -33
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 32
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_sub = sub nuw i8 %n, %n2
%cmp = icmp ugt i8 %n_sub, 223
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_sub_fail_wrong_arg(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub_fail_wrong_arg(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_SUB]], -33
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N2]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_sub = sub nuw i8 %n, %n2
%cmp = icmp ugt i8 %n_sub, 223
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n2, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_sub2(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_SUB]], -31
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 32
;
entry:
%n_sub = sub nuw i8 %n, %n2
%cmp = icmp ule i8 %n_sub, 224
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i8 %other
if.else:
%r = and i8 %n, 32
ret i8 %r
}
define i8 @test_icmp_sub2_fail_nsw(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub2_fail_nsw(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nsw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ult i8 [[N_SUB]], -31
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
; CHECK: if.else:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
;
entry:
%n_sub = sub nsw i8 %n, %n2
%cmp = icmp ule i8 %n_sub, 224
br i1 %cmp, label %if.then, label %if.else
if.then:
ret i8 %other
if.else:
%r = and i8 %n, 32
ret i8 %r
}
define i8 @test_icmp_sub_fail_bad_range(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub_fail_bad_range(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i8 [[N_SUB]], -34
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_sub = sub nuw i8 %n, %n2
%cmp = icmp uge i8 %n_sub, 223
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @test_icmp_sub_fail_bad_pred(i8 %n, i8 %n2, i8 %other) {
; CHECK-LABEL: @test_icmp_sub_fail_bad_pred(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[N_SUB:%.*]] = sub nuw i8 [[N:%.*]], [[N2:%.*]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[N_SUB]], 31
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[R:%.*]] = and i8 [[N]], 32
; CHECK-NEXT: ret i8 [[R]]
; CHECK: if.else:
; CHECK-NEXT: ret i8 [[OTHER:%.*]]
;
entry:
%n_sub = sub nuw i8 %n, %n2
%cmp = icmp sge i8 %n_sub, 32
br i1 %cmp, label %if.then, label %if.else
if.then:
%r = and i8 %n, 32
ret i8 %r
if.else:
ret i8 %other
}
define i8 @simplifydemanded_context(i8 %x, i8 %y) {
; CHECK-LABEL: @simplifydemanded_context(
; CHECK-NEXT: call void @dummy()
; CHECK-NEXT: [[X_LOBITS:%.*]] = and i8 [[X:%.*]], 3
; CHECK-NEXT: [[PRECOND:%.*]] = icmp eq i8 [[X_LOBITS]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[PRECOND]])
; CHECK-NEXT: ret i8 0
;
%and1 = and i8 %x, 1
call void @dummy() ; may unwind
%x.lobits = and i8 %x, 3
%precond = icmp eq i8 %x.lobits, 0
call void @llvm.assume(i1 %precond)
%and2 = and i8 %and1, %y
ret i8 %and2
}
define i16 @pr97330(i1 %c, ptr %p1, ptr %p2) {
; CHECK-LABEL: @pr97330(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 [[C:%.*]], label [[EXIT:%.*]], label [[IF:%.*]]
; CHECK: if:
; CHECK-NEXT: unreachable
; CHECK: exit:
; CHECK-NEXT: [[V:%.*]] = load i64, ptr [[P1:%.*]], align 8
; CHECK-NEXT: [[CONV:%.*]] = trunc i64 [[V]] to i16
; CHECK-NEXT: ret i16 [[CONV]]
;
entry:
%v = load i64, ptr %p1, align 8
%conv = trunc i64 %v to i16
br i1 %c, label %exit, label %if
if:
%cmp = icmp ne i16 %conv, 1
%conv2 = zext i1 %cmp to i32
store i32 %conv2, ptr %p2, align 4
%cmp2 = icmp eq i64 %v, 1
call void @llvm.assume(i1 %cmp2)
unreachable
exit:
ret i16 %conv
}
define i1 @mul_nuw_nsw_nonneg_const(i8 %x) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_const(
; CHECK-NEXT: ret i1 true
;
%mul = mul nuw nsw i8 %x, 3
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
define i1 @mul_nuw_nsw_nonneg_const_missing_nuw(i8 %x) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_const_missing_nuw(
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[X:%.*]], -1
; CHECK-NEXT: ret i1 [[CMP]]
;
%mul = mul nsw i8 %x, 3
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
define i1 @mul_nuw_nsw_nonneg_const_missing_nsw(i8 %x) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_const_missing_nsw(
; CHECK-NEXT: [[MUL:%.*]] = mul nuw i8 [[X:%.*]], 3
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[MUL]], -1
; CHECK-NEXT: ret i1 [[CMP]]
;
%mul = mul nuw i8 %x, 3
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
define i1 @mul_nuw_nsw_nonneg_can_be_one(i8 %x, i8 %y) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_can_be_one(
; CHECK-NEXT: [[Y_NNEG:%.*]] = and i8 [[Y:%.*]], 127
; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw i8 [[X:%.*]], [[Y_NNEG]]
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i8 [[MUL]], -1
; CHECK-NEXT: ret i1 [[CMP]]
;
%y.nneg = and i8 %y, 127
%mul = mul nuw nsw i8 %x, %y.nneg
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
define i1 @mul_nuw_nsw_nonneg_cant_be_one(i8 %x, i8 %y) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_cant_be_one(
; CHECK-NEXT: ret i1 true
;
%y.nneg = and i8 %y, 127
%y.nneg.not.one = or i8 %y.nneg, 2
%mul = mul nuw nsw i8 %x, %y.nneg.not.one
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
define i1 @mul_nuw_nsw_nonneg_cant_be_one_commuted(i8 %x, i8 %y) {
; CHECK-LABEL: @mul_nuw_nsw_nonneg_cant_be_one_commuted(
; CHECK-NEXT: ret i1 true
;
%y.nneg = and i8 %y, 127
%y.nneg.not.one = or i8 %y.nneg, 2
%mul = mul nuw nsw i8 %y.nneg.not.one, %x
%cmp = icmp sgt i8 %mul, -1
ret i1 %cmp
}
declare void @dummy()
declare void @use(i1)
declare void @sink(i8)
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