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This intrinsic implements IEEE-754 operation roundToIntegralTiesToEven, and performs rounding to the nearest integer value, rounding halfway cases to even. The intrinsic represents the missed case of IEEE-754 rounding operations and now llvm provides full support of the rounding operations defined by the standard. Differential Revision: https://reviews.llvm.org/D75670
143 lines
4.0 KiB
LLVM
143 lines
4.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -instsimplify %s | FileCheck %s
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define float @sitofp_floor(i32 %arg) {
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; CHECK-LABEL: @sitofp_floor(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%round = call float @llvm.floor.f32(float %cvt)
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ret float %round
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}
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define float @uitofp_floor(i32 %arg) {
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; CHECK-LABEL: @uitofp_floor(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%round = call float @llvm.floor.f32(float %cvt)
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ret float %round
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}
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define float @sitofp_trunc(i32 %arg) {
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; CHECK-LABEL: @sitofp_trunc(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%round = call float @llvm.trunc.f32(float %cvt)
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ret float %round
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}
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define float @uitofp_trunc(i32 %arg) {
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; CHECK-LABEL: @uitofp_trunc(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%round = call float @llvm.trunc.f32(float %cvt)
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ret float %round
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}
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define float @sitofp_ceil(i32 %arg) {
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; CHECK-LABEL: @sitofp_ceil(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%round = call float @llvm.ceil.f32(float %cvt)
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ret float %round
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}
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define float @uitofp_ceil(i32 %arg) {
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; CHECK-LABEL: @uitofp_ceil(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%round = call float @llvm.ceil.f32(float %cvt)
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ret float %round
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}
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define float @sitofp_round(i32 %arg) {
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; CHECK-LABEL: @sitofp_round(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%round = call float @llvm.round.f32(float %cvt)
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ret float %round
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}
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define float @uitofp_round(i32 %arg) {
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; CHECK-LABEL: @uitofp_round(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%round = call float @llvm.round.f32(float %cvt)
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ret float %round
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}
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define float @uitofp_roundeven(i32 %arg) {
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; CHECK-LABEL: @uitofp_roundeven(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%round = call float @llvm.roundeven.f32(float %cvt)
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ret float %round
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}
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define float @sitofp_nearbyint(i32 %arg) {
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; CHECK-LABEL: @sitofp_nearbyint(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%nearbyint = call float @llvm.nearbyint.f32(float %cvt)
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ret float %nearbyint
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}
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define float @uitofp_nearbyint(i32 %arg) {
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; CHECK-LABEL: @uitofp_nearbyint(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%nearbyint = call float @llvm.nearbyint.f32(float %cvt)
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ret float %nearbyint
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}
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define float @sitofp_rint(i32 %arg) {
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; CHECK-LABEL: @sitofp_rint(
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; CHECK-NEXT: [[CVT:%.*]] = sitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = sitofp i32 %arg to float
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%rint = call float @llvm.rint.f32(float %cvt)
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ret float %rint
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}
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define float @uitofp_rint(i32 %arg) {
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; CHECK-LABEL: @uitofp_rint(
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; CHECK-NEXT: [[CVT:%.*]] = uitofp i32 [[ARG:%.*]] to float
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; CHECK-NEXT: ret float [[CVT]]
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;
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%cvt = uitofp i32 %arg to float
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%rint = call float @llvm.rint.f32(float %cvt)
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ret float %rint
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}
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declare float @llvm.floor.f32(float) #0
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declare float @llvm.trunc.f32(float) #0
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declare float @llvm.ceil.f32(float) #0
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declare float @llvm.round.f32(float) #0
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declare float @llvm.roundeven.f32(float) #0
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declare float @llvm.nearbyint.f32(float) #0
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declare float @llvm.rint.f32(float) #0
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attributes #0 = { nounwind readnone speculatable }
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