; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
declare i64 @llvm.ctpop.i64(i64)
declare i32 @llvm.ctpop.i32(i32)
declare i16 @llvm.ctpop.i16(i16)
declare i8 @llvm.ctpop.i8(i8)
declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>)
declare void @llvm.assume(i1)
define i16 @ctpop_x_and_negx(i16 %x) {
; CHECK-LABEL: @ctpop_x_and_negx(
; CHECK-NEXT: [[V0:%.*]] = sub i16 0, [[X:%.*]]
; CHECK-NEXT: [[V1:%.*]] = and i16 [[X]], [[V0]]
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne i16 [[V1]], 0
; CHECK-NEXT: [[CNT:%.*]] = zext i1 [[TMP1]] to i16
; CHECK-NEXT: ret i16 [[CNT]]
;
%v0 = sub i16 0, %x
%v1 = and i16 %x, %v0
%cnt = call i16 @llvm.ctpop.i16(i16 %v1)
ret i16 %cnt
}
define i8 @ctpop_x_nz_and_negx(i8 %x) {
; CHECK-LABEL: @ctpop_x_nz_and_negx(
; CHECK-NEXT: ret i8 1
;
%x1 = or i8 %x, 1
%v0 = sub i8 0, %x1
%v1 = and i8 %x1, %v0
%cnt = call i8 @llvm.ctpop.i8(i8 %v1)
ret i8 %cnt
}
define i32 @ctpop_2_shl(i32 %x) {
; CHECK-LABEL: @ctpop_2_shl(
; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[X:%.*]], 31
; CHECK-NEXT: [[CNT:%.*]] = zext i1 [[TMP1]] to i32
; CHECK-NEXT: ret i32 [[CNT]]
;
%v = shl i32 2, %x
%cnt = call i32 @llvm.ctpop.i32(i32 %v)
ret i32 %cnt
}
define i32 @ctpop_2_shl_nz(i32 %x) {
; CHECK-LABEL: @ctpop_2_shl_nz(
; CHECK-NEXT: ret i32 1
;
%xa30 = and i32 30, %x
%v = shl i32 2, %xa30
%cnt = call i32 @llvm.ctpop.i32(i32 %v)
ret i32 %cnt
}
define i8 @ctpop_imin_plus1_lshr_nz(i8 %x) {
; CHECK-LABEL: @ctpop_imin_plus1_lshr_nz(
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[X:%.*]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: [[V:%.*]] = lshr i8 -127, [[X]]
; CHECK-NEXT: [[CNT:%.*]] = call range(i8 1, 9) i8 @llvm.ctpop.i8(i8 [[V]])
; CHECK-NEXT: ret i8 [[CNT]]
;
%cmp = icmp ne i8 %x, 0
call void @llvm.assume(i1 %cmp)
%v = lshr i8 129, %x
%cnt = call i8 @llvm.ctpop.i8(i8 %v)
ret i8 %cnt
}
define i64 @ctpop_x_and_negx_nz(i64 %x) {
; CHECK-LABEL: @ctpop_x_and_negx_nz(
; CHECK-NEXT: [[V0:%.*]] = sub i64 0, [[X:%.*]]
; CHECK-NEXT: [[V1:%.*]] = and i64 [[X]], [[V0]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i64 [[V1]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: ret i64 1
;
%v0 = sub i64 0, %x
%v1 = and i64 %x, %v0
%cmp = icmp ne i64 %v1, 0
call void @llvm.assume(i1 %cmp)
%cnt = call i64 @llvm.ctpop.i64(i64 %v1)
ret i64 %cnt
}
define <2 x i32> @ctpop_shl2_1_vec(<2 x i32> %x) {
; CHECK-LABEL: @ctpop_shl2_1_vec(
; CHECK-NEXT: [[SHL:%.*]] = shl <2 x i32> <i32 2, i32 1>, [[X:%.*]]
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i32> [[SHL]], zeroinitializer
; CHECK-NEXT: [[CNT:%.*]] = zext <2 x i1> [[TMP1]] to <2 x i32>
; CHECK-NEXT: ret <2 x i32> [[CNT]]
;
%shl = shl <2 x i32> <i32 2 ,i32 1>, %x
%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shl)
ret <2 x i32> %cnt
}
define <2 x i32> @ctpop_lshr_intmin_intmin_plus1_vec_nz(<2 x i32> %x) {
; CHECK-LABEL: @ctpop_lshr_intmin_intmin_plus1_vec_nz(
; CHECK-NEXT: [[X1:%.*]] = or <2 x i32> [[X:%.*]], <i32 1, i32 1>
; CHECK-NEXT: [[SHR:%.*]] = lshr <2 x i32> <i32 -2147483648, i32 -2147483647>, [[X1]]
; CHECK-NEXT: [[CNT:%.*]] = call range(i32 1, 17) <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[SHR]])
; CHECK-NEXT: ret <2 x i32> [[CNT]]
;
%x1 = or <2 x i32> %x, <i32 1 ,i32 1>
%shr = lshr <2 x i32> <i32 2147483648 ,i32 2147483649>, %x1
%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shr)
ret <2 x i32> %cnt
}
define <2 x i32> @ctpop_shl2_1_vec_nz(<2 x i32> %x) {
; CHECK-LABEL: @ctpop_shl2_1_vec_nz(
; CHECK-NEXT: ret <2 x i32> <i32 1, i32 1>
;
%and = and <2 x i32> %x, <i32 15 ,i32 15>
%shl = shl <2 x i32> <i32 2 ,i32 1>, %and
%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shl)
ret <2 x i32> %cnt
}
define <2 x i64> @ctpop_x_and_negx_vec(<2 x i64> %x) {
; CHECK-LABEL: @ctpop_x_and_negx_vec(
; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i64> zeroinitializer, [[X:%.*]]
; CHECK-NEXT: [[AND:%.*]] = and <2 x i64> [[X]], [[SUB]]
; CHECK-NEXT: [[TMP1:%.*]] = icmp ne <2 x i64> [[AND]], zeroinitializer
; CHECK-NEXT: [[CNT:%.*]] = zext <2 x i1> [[TMP1]] to <2 x i64>
; CHECK-NEXT: ret <2 x i64> [[CNT]]
;
%sub = sub <2 x i64> <i64 0 ,i64 0>, %x
%and = and <2 x i64> %sub, %x
%cnt = call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %and)
ret <2 x i64> %cnt
}
define <2 x i32> @ctpop_x_and_negx_vec_nz(<2 x i32> %x) {
; CHECK-LABEL: @ctpop_x_and_negx_vec_nz(
; CHECK-NEXT: ret <2 x i32> <i32 1, i32 1>
;
%x1 = or <2 x i32> %x, <i32 1 ,i32 1>
%sub = sub <2 x i32> <i32 0 ,i32 0>, %x1
%and = and <2 x i32> %sub, %x1
%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %and)
ret <2 x i32> %cnt
}
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