216 lines
6.9 KiB
LLVM
216 lines
6.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
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declare i64 @llvm.ctpop.i64(i64)
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declare i32 @llvm.ctpop.i32(i32)
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declare i16 @llvm.ctpop.i16(i16)
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declare i8 @llvm.ctpop.i8(i8)
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declare <2 x i32> @llvm.ctpop.v2i32(<2 x i32>)
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declare void @llvm.assume(i1)
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define i64 @ctpop_1_shl(i64 %x) {
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; CHECK-LABEL: @ctpop_1_shl(
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; CHECK-NEXT: ret i64 1
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;
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%v = shl i64 1, %x
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%cnt = call i64 @llvm.ctpop.i64(i64 %v)
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ret i64 %cnt
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}
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define i32 @ctpop_imin_lshr(i32 %x) {
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; CHECK-LABEL: @ctpop_imin_lshr(
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; CHECK-NEXT: ret i32 1
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;
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%v = lshr i32 2147483648, %x
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%cnt = call i32 @llvm.ctpop.i32(i32 %v)
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ret i32 %cnt
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}
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define i16 @ctpop_x_and_negx(i16 %x) {
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; CHECK-LABEL: @ctpop_x_and_negx(
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; CHECK-NEXT: [[V0:%.*]] = sub i16 0, [[X:%.*]]
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; CHECK-NEXT: [[V1:%.*]] = and i16 [[X]], [[V0]]
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; CHECK-NEXT: [[CNT:%.*]] = call i16 @llvm.ctpop.i16(i16 [[V1]])
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; CHECK-NEXT: ret i16 [[CNT]]
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;
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%v0 = sub i16 0, %x
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%v1 = and i16 %x, %v0
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%cnt = call i16 @llvm.ctpop.i16(i16 %v1)
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ret i16 %cnt
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}
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define i8 @ctpop_x_nz_and_negx(i8 %x) {
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; CHECK-LABEL: @ctpop_x_nz_and_negx(
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; CHECK-NEXT: ret i8 1
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;
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%x1 = or i8 %x, 1
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%v0 = sub i8 0, %x1
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%v1 = and i8 %x1, %v0
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%cnt = call i8 @llvm.ctpop.i8(i8 %v1)
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ret i8 %cnt
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}
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define i32 @ctpop_2_shl(i32 %x) {
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; CHECK-LABEL: @ctpop_2_shl(
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; CHECK-NEXT: [[V:%.*]] = shl i32 2, [[X:%.*]]
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; CHECK-NEXT: [[CNT:%.*]] = call i32 @llvm.ctpop.i32(i32 [[V]])
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; CHECK-NEXT: ret i32 [[CNT]]
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;
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%v = shl i32 2, %x
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%cnt = call i32 @llvm.ctpop.i32(i32 %v)
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ret i32 %cnt
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}
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define i16 @ctpop_imin_plus1_lshr(i16 %x) {
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; CHECK-LABEL: @ctpop_imin_plus1_lshr(
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; CHECK-NEXT: [[V:%.*]] = lshr i16 -32767, [[X:%.*]]
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; CHECK-NEXT: [[CNT:%.*]] = call i16 @llvm.ctpop.i16(i16 [[V]])
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; CHECK-NEXT: ret i16 [[CNT]]
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;
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%v = lshr i16 32769, %x
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%cnt = call i16 @llvm.ctpop.i16(i16 %v)
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ret i16 %cnt
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}
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define i32 @ctpop_2_shl_nz(i32 %x) {
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; CHECK-LABEL: @ctpop_2_shl_nz(
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; CHECK-NEXT: [[XA30:%.*]] = and i32 30, [[X:%.*]]
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; CHECK-NEXT: [[V:%.*]] = shl i32 2, [[XA30]]
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; CHECK-NEXT: [[CNT:%.*]] = call i32 @llvm.ctpop.i32(i32 [[V]])
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; CHECK-NEXT: ret i32 [[CNT]]
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;
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%xa30 = and i32 30, %x
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%v = shl i32 2, %xa30
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%cnt = call i32 @llvm.ctpop.i32(i32 %v)
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ret i32 %cnt
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}
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define i8 @ctpop_imin_plus1_lshr_nz(i8 %x) {
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; CHECK-LABEL: @ctpop_imin_plus1_lshr_nz(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i8 [[X:%.*]], 0
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: [[V:%.*]] = lshr i8 -127, [[X]]
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; CHECK-NEXT: [[CNT:%.*]] = call i8 @llvm.ctpop.i8(i8 [[V]])
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; CHECK-NEXT: ret i8 [[CNT]]
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;
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%cmp = icmp ne i8 %x, 0
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call void @llvm.assume(i1 %cmp)
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%v = lshr i8 129, %x
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%cnt = call i8 @llvm.ctpop.i8(i8 %v)
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ret i8 %cnt
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}
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define i64 @ctpop_x_and_negx_nz(i64 %x) {
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; CHECK-LABEL: @ctpop_x_and_negx_nz(
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; CHECK-NEXT: [[V0:%.*]] = sub i64 0, [[X:%.*]]
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; CHECK-NEXT: [[V1:%.*]] = and i64 [[X]], [[V0]]
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i64 [[V1]], 0
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; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
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; CHECK-NEXT: [[CNT:%.*]] = call i64 @llvm.ctpop.i64(i64 [[V1]])
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; CHECK-NEXT: ret i64 [[CNT]]
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;
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%v0 = sub i64 0, %x
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%v1 = and i64 %x, %v0
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%cmp = icmp ne i64 %v1, 0
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call void @llvm.assume(i1 %cmp)
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%cnt = call i64 @llvm.ctpop.i64(i64 %v1)
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ret i64 %cnt
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}
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define <2 x i32> @ctpop_shl1_vec(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_shl1_vec(
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; CHECK-NEXT: ret <2 x i32> <i32 1, i32 1>
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;
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%shl = shl <2 x i32> <i32 1 ,i32 1>, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shl)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_shl2_1_vec(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_shl2_1_vec(
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; CHECK-NEXT: [[SHL:%.*]] = shl <2 x i32> <i32 2, i32 1>, [[X:%.*]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[SHL]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%shl = shl <2 x i32> <i32 2 ,i32 1>, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shl)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_lshr_intmin_vec(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_lshr_intmin_vec(
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; CHECK-NEXT: ret <2 x i32> <i32 1, i32 1>
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;
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%shr = lshr <2 x i32> <i32 2147483648 ,i32 2147483648>, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shr)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_lshr_intmin_intmin_plus1_vec(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_lshr_intmin_intmin_plus1_vec(
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; CHECK-NEXT: [[SHR:%.*]] = lshr <2 x i32> <i32 -2147483648, i32 -2147483647>, [[X:%.*]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[SHR]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%shr = lshr <2 x i32> <i32 2147483648 ,i32 2147483649>, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shr)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_lshr_intmin_intmin_plus1_vec_nz(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_lshr_intmin_intmin_plus1_vec_nz(
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; CHECK-NEXT: [[X1:%.*]] = or <2 x i32> [[X:%.*]], <i32 1, i32 1>
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; CHECK-NEXT: [[SHR:%.*]] = lshr <2 x i32> <i32 -2147483648, i32 -2147483647>, [[X1]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[SHR]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%x1 = or <2 x i32> %x, <i32 1 ,i32 1>
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%shr = lshr <2 x i32> <i32 2147483648 ,i32 2147483649>, %x1
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shr)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_shl2_1_vec_nz(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_shl2_1_vec_nz(
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; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[X:%.*]], <i32 15, i32 15>
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; CHECK-NEXT: [[SHL:%.*]] = shl <2 x i32> <i32 2, i32 1>, [[AND]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[SHL]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%and = and <2 x i32> %x, <i32 15 ,i32 15>
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%shl = shl <2 x i32> <i32 2 ,i32 1>, %and
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %shl)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_x_and_negx_vec(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_x_and_negx_vec(
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; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i32> zeroinitializer, [[X:%.*]]
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; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[SUB]], [[X]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[AND]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%sub = sub <2 x i32> <i32 0 ,i32 0>, %x
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%and = and <2 x i32> %sub, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %and)
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ret <2 x i32> %cnt
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}
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define <2 x i32> @ctpop_x_and_negx_vec_nz(<2 x i32> %x) {
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; CHECK-LABEL: @ctpop_x_and_negx_vec_nz(
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; CHECK-NEXT: [[X1:%.*]] = or <2 x i32> [[X:%.*]], <i32 1, i32 1>
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; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i32> zeroinitializer, [[X1]]
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; CHECK-NEXT: [[AND:%.*]] = and <2 x i32> [[SUB]], [[X]]
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; CHECK-NEXT: [[CNT:%.*]] = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> [[AND]])
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; CHECK-NEXT: ret <2 x i32> [[CNT]]
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;
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%x1 = or <2 x i32> %x, <i32 1 ,i32 1>
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%sub = sub <2 x i32> <i32 0 ,i32 0>, %x1
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%and = and <2 x i32> %sub, %x
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%cnt = call <2 x i32> @llvm.ctpop.v2i32(<2 x i32> %and)
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ret <2 x i32> %cnt
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}
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