; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare void @use.i8(i8)
; Should be optimized to one and.
define i1 @test1(i32 %a, i32 %b) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[TMP1:%.*]] = xor i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 65280
; CHECK-NEXT: [[TMP:%.*]] = icmp ne i32 [[TMP2]], 0
; CHECK-NEXT: ret i1 [[TMP]]
;
%tmp1 = and i32 %a, 65280
%tmp3 = and i32 %b, 65280
%tmp = icmp ne i32 %tmp1, %tmp3
ret i1 %tmp
}
define <2 x i1> @test1vec(<2 x i32> %a, <2 x i32> %b) {
; CHECK-LABEL: @test1vec(
; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i32> [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = and <2 x i32> [[TMP1]], <i32 65280, i32 65280>
; CHECK-NEXT: [[TMP:%.*]] = icmp ne <2 x i32> [[TMP2]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[TMP]]
;
%tmp1 = and <2 x i32> %a, <i32 65280, i32 65280>
%tmp3 = and <2 x i32> %b, <i32 65280, i32 65280>
%tmp = icmp ne <2 x i32> %tmp1, %tmp3
ret <2 x i1> %tmp
}
define i1 @test2(i64 %A) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[AND:%.*]] = and i64 [[A:%.*]], 128
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[AND]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
%and = and i64 %A, 128
%cmp = icmp eq i64 %and, 0
ret i1 %cmp
}
define <2 x i1> @test2vec(<2 x i64> %A) {
; CHECK-LABEL: @test2vec(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i64> [[A:%.*]], <i64 128, i64 128>
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i64> [[AND]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%and = and <2 x i64> %A, <i64 128, i64 128>
%cmp = icmp eq <2 x i64> %and, zeroinitializer
ret <2 x i1> %cmp
}
define i1 @test3(i64 %A) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[AND:%.*]] = and i64 [[A:%.*]], 128
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i64 [[AND]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
%and = and i64 %A, 128
%cmp = icmp ne i64 %and, 0
ret i1 %cmp
}
define <2 x i1> @test3vec(<2 x i64> %A) {
; CHECK-LABEL: @test3vec(
; CHECK-NEXT: [[AND:%.*]] = and <2 x i64> [[A:%.*]], <i64 128, i64 128>
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i64> [[AND]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%and = and <2 x i64> %A, <i64 128, i64 128>
%cmp = icmp ne <2 x i64> %and, zeroinitializer
ret <2 x i1> %cmp
}
define i1 @test_ne_cp2(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2(
; CHECK-NEXT: [[AND_X_NEG_Y:%.*]] = and i8 [[X:%.*]], -16
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X]], 16
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_NEG_Y]])
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ugt i8 [[X]], 31
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -16
%and_x_y = and i8 %x, 16
call void @use.i8(i8 %and_x_neg_y)
call void @use.i8(i8 %and_x_y)
%r = icmp ne i8 %and_x_neg_y, %and_x_y
ret i1 %r
}
define i1 @test_ne_cp2_2(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2_2(
; CHECK-NEXT: [[AND_X_NEG_Y:%.*]] = and i8 [[X:%.*]], -4
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X]], 4
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_NEG_Y]])
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ult i8 [[X]], 8
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -4
%and_x_y = and i8 %x, 4
call void @use.i8(i8 %and_x_neg_y)
call void @use.i8(i8 %and_x_y)
%r = icmp eq i8 %and_x_y, %and_x_neg_y
ret i1 %r
}
define i1 @test_ne_cp2_other_okay_all_ones(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2_other_okay_all_ones(
; CHECK-NEXT: [[AND_X_NEG_Y:%.*]] = and i8 [[X:%.*]], -17
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X]], 16
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_NEG_Y]])
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -17
%and_x_y = and i8 %x, 16
call void @use.i8(i8 %and_x_neg_y)
call void @use.i8(i8 %and_x_y)
%r = icmp ne i8 %and_x_neg_y, %and_x_y
ret i1 %r
}
define i1 @test_ne_cp2_other_fail2(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2_other_fail2(
; CHECK-NEXT: [[AND_X_NEG_Y:%.*]] = and i8 [[X:%.*]], -16
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X]], 17
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_NEG_Y]])
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[AND_X_NEG_Y]], [[AND_X_Y]]
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -16
%and_x_y = and i8 %x, 17
call void @use.i8(i8 %and_x_neg_y)
call void @use.i8(i8 %and_x_y)
%r = icmp ne i8 %and_x_neg_y, %and_x_y
ret i1 %r
}
define i1 @test_ne_cp2_other_okay(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2_other_okay(
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X:%.*]], 16
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -17
%and_x_y = and i8 %x, 16
call void @use.i8(i8 %and_x_y)
%r = icmp ne i8 %and_x_neg_y, %and_x_y
ret i1 %r
}
define i1 @test_ne_cp2_other_okay2(i8 %x, i8 %yy) {
; CHECK-LABEL: @test_ne_cp2_other_okay2(
; CHECK-NEXT: [[AND_X_Y:%.*]] = and i8 [[X:%.*]], 16
; CHECK-NEXT: call void @use.i8(i8 [[AND_X_Y]])
; CHECK-NEXT: [[R:%.*]] = icmp ne i8 [[X]], 0
; CHECK-NEXT: ret i1 [[R]]
;
%and_x_neg_y = and i8 %x, -17
%and_x_y = and i8 %x, 16
call void @use.i8(i8 %and_x_y)
%r = icmp ne i8 %and_x_y, %and_x_neg_y
ret i1 %r
}
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