forked from OSchip/llvm-project
636 lines
21 KiB
LLVM
636 lines
21 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; =========================================================================
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;
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; Test FP factorization with patterns:
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; X * Z + Y * Z --> (X + Y) * Z (including all 4 commuted variants)
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; X * Z - Y * Z --> (X - Y) * Z (including all 4 commuted variants)
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; X / Z + Y / Z --> (X + Y) / Z
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; X / Z - Y / Z --> (X - Y) / Z
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;
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; =========================================================================
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; Minimum FMF - the final result requires/propagates FMF.
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define float @fmul_fadd(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fadd(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz float [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nsz float [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %x, %z
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%t2 = fmul float %y, %z
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%r = fadd reassoc nsz float %t1, %t2
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ret float %r
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}
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; Verify vector types and commuted operands.
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define <2 x float> @fmul_fadd_commute1_vec(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
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; CHECK-LABEL: @fmul_fadd_commute1_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz <2 x float> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nsz <2 x float> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%t1 = fmul <2 x float> %z, %x
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%t2 = fmul <2 x float> %z, %y
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%r = fadd reassoc nsz <2 x float> %t1, %t2
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ret <2 x float> %r
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}
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; Verify vector types, commuted operands, FMF propagation.
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define <2 x float> @fmul_fadd_commute2_vec(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
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; CHECK-LABEL: @fmul_fadd_commute2_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc ninf nsz <2 x float> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc ninf nsz <2 x float> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%t1 = fmul fast <2 x float> %x, %z
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%t2 = fmul nnan <2 x float> %z, %y
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%r = fadd reassoc nsz ninf <2 x float> %t1, %t2
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ret <2 x float> %r
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}
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; Verify different scalar type, commuted operands, FMF propagation.
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define double @fmul_fadd_commute3(double %x, double %y, double %z) {
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; CHECK-LABEL: @fmul_fadd_commute3(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nnan nsz double [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nnan nsz double [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret double [[R]]
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;
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%t1 = fmul double %z, %x
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%t2 = fmul fast double %y, %z
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%r = fadd reassoc nsz nnan double %t1, %t2
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ret double %r
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}
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; Negative test - verify the fold is not done with only 'reassoc' ('nsz' is required).
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define float @fmul_fadd_not_enough_FMF(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fadd_not_enough_FMF(
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; CHECK-NEXT: [[T1:%.*]] = fmul fast float [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul fast float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fadd reassoc float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul fast float %x, %z
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%t2 = fmul fast float %y, %z
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%r = fadd reassoc float %t1, %t2
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ret float %r
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}
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declare void @use(float)
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; Negative test - extra uses should disable the fold.
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define float @fmul_fadd_uses1(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fadd_uses1(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[Z:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fadd reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T1]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %z, %x
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%t2 = fmul float %y, %z
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%r = fadd reassoc nsz float %t1, %t2
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call void @use(float %t1)
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ret float %r
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}
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; Negative test - extra uses should disable the fold.
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define float @fmul_fadd_uses2(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fadd_uses2(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[Z:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Z]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fadd reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T2]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %z, %x
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%t2 = fmul float %z, %y
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%r = fadd reassoc nsz float %t1, %t2
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call void @use(float %t2)
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ret float %r
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}
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; Negative test - extra uses should disable the fold.
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define float @fmul_fadd_uses3(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fadd_uses3(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Z]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fadd reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T1]])
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; CHECK-NEXT: call void @use(float [[T2]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %x, %z
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%t2 = fmul float %z, %y
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%r = fadd reassoc nsz float %t1, %t2
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call void @use(float %t1)
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call void @use(float %t2)
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ret float %r
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}
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; Minimum FMF - the final result requires/propagates FMF.
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define half @fmul_fsub(half %x, half %y, half %z) {
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; CHECK-LABEL: @fmul_fsub(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nsz half [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nsz half [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret half [[R]]
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;
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%t1 = fmul half %x, %z
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%t2 = fmul half %y, %z
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%r = fsub reassoc nsz half %t1, %t2
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ret half %r
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}
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; Verify vector types and commuted operands.
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define <2 x float> @fmul_fsub_commute1_vec(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
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; CHECK-LABEL: @fmul_fsub_commute1_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nsz <2 x float> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nsz <2 x float> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%t1 = fmul <2 x float> %z, %x
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%t2 = fmul <2 x float> %y, %z
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%r = fsub reassoc nsz <2 x float> %t1, %t2
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ret <2 x float> %r
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}
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; Verify vector types, commuted operands, FMF propagation.
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define <2 x float> @fmul_fsub_commute2_vec(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
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; CHECK-LABEL: @fmul_fsub_commute2_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc ninf nsz <2 x float> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc ninf nsz <2 x float> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%t1 = fmul fast <2 x float> %x, %z
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%t2 = fmul nnan <2 x float> %z, %y
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%r = fsub reassoc nsz ninf <2 x float> %t1, %t2
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ret <2 x float> %r
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}
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; Verify different scalar type, commuted operands, FMF propagation.
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define double @fmul_fsub_commute3(double %x, double %y, double %z) {
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; CHECK-LABEL: @fmul_fsub_commute3(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nnan nsz double [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fmul reassoc nnan nsz double [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret double [[R]]
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;
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%t1 = fmul double %z, %x
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%t2 = fmul fast double %z, %y
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%r = fsub reassoc nsz nnan double %t1, %t2
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ret double %r
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}
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; Negative test - verify the fold is not done with only 'nsz' ('reassoc' is required).
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define float @fmul_fsub_not_enough_FMF(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fsub_not_enough_FMF(
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; CHECK-NEXT: [[T1:%.*]] = fmul fast float [[Z:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul fast float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fsub nsz float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul fast float %z, %x
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%t2 = fmul fast float %y, %z
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%r = fsub nsz float %t1, %t2
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ret float %r
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}
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; Negative test - extra uses should disable the fold.
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define float @fmul_fsub_uses1(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fsub_uses1(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fsub reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T1]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %x, %z
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%t2 = fmul float %y, %z
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%r = fsub reassoc nsz float %t1, %t2
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call void @use(float %t1)
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ret float %r
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}
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; Negative test - extra uses should disable the fold.
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define float @fmul_fsub_uses2(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fsub_uses2(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[Z:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Z]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fsub reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T2]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %z, %x
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%t2 = fmul float %z, %y
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%r = fsub reassoc nsz float %t1, %t2
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call void @use(float %t2)
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ret float %r
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}
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; Negative test - extra uses should disable the fold.
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define float @fmul_fsub_uses3(float %x, float %y, float %z) {
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; CHECK-LABEL: @fmul_fsub_uses3(
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; CHECK-NEXT: [[T1:%.*]] = fmul float [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fmul float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fsub reassoc nsz float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T1]])
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; CHECK-NEXT: call void @use(float [[T2]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fmul float %x, %z
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%t2 = fmul float %y, %z
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%r = fsub reassoc nsz float %t1, %t2
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call void @use(float %t1)
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call void @use(float %t2)
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ret float %r
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}
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; Common divisor
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define double @fdiv_fadd(double %x, double %y, double %z) {
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; CHECK-LABEL: @fdiv_fadd(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz double [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fdiv reassoc nsz double [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret double [[R]]
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;
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%t1 = fdiv double %x, %z
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%t2 = fdiv double %y, %z
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%r = fadd reassoc nsz double %t1, %t2
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ret double %r
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}
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define float @fdiv_fsub(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fsub(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nsz float [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fdiv reassoc nsz float [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fdiv fast float %x, %z
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%t2 = fdiv nnan float %y, %z
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%r = fsub reassoc nsz float %t1, %t2
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ret float %r
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}
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; Verify vector types.
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define <2 x double> @fdiv_fadd_vec(<2 x double> %x, <2 x double> %y, <2 x double> %z) {
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; CHECK-LABEL: @fdiv_fadd_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc nsz <2 x double> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fdiv reassoc nsz <2 x double> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x double> [[R]]
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;
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%t1 = fdiv fast <2 x double> %x, %z
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%t2 = fdiv <2 x double> %y, %z
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%r = fadd reassoc nsz <2 x double> %t1, %t2
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ret <2 x double> %r
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}
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; Verify vector types.
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define <2 x float> @fdiv_fsub_vec(<2 x float> %x, <2 x float> %y, <2 x float> %z) {
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; CHECK-LABEL: @fdiv_fsub_vec(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nsz <2 x float> [[X:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fdiv reassoc nsz <2 x float> [[TMP1]], [[Z:%.*]]
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%t1 = fdiv <2 x float> %x, %z
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%t2 = fdiv nnan <2 x float> %y, %z
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%r = fsub reassoc nsz <2 x float> %t1, %t2
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ret <2 x float> %r
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}
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; Negative test - common operand is not divisor.
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define float @fdiv_fadd_commute1(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fadd_commute1(
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; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[Z:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Z]], [[X:%.*]]
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; CHECK-NEXT: [[R:%.*]] = fadd fast float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fdiv fast float %z, %y
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%t2 = fdiv fast float %z, %x
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%r = fadd fast float %t1, %t2
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ret float %r
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}
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; Negative test - common operand is not divisor.
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define float @fdiv_fsub_commute2(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fsub_commute2(
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; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[Z:%.*]], [[Y:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[X:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fsub fast float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fdiv fast float %z, %y
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%t2 = fdiv fast float %x, %z
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%r = fsub fast float %t1, %t2
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ret float %r
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}
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; Negative test - verify the fold is not done with only 'nsz' ('reassoc' is required).
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define float @fdiv_fadd_not_enough_FMF(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fadd_not_enough_FMF(
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; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Z:%.*]], [[X]]
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; CHECK-NEXT: [[T3:%.*]] = fadd nsz float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[T3]]
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;
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%t1 = fdiv fast float %y, %x
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%t2 = fdiv fast float %z, %x
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%t3 = fadd nsz float %t1, %t2
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ret float %t3
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}
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; Negative test - verify the fold is not done with only 'reassoc' ('nsz' is required).
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define float @fdiv_fsub_not_enough_FMF(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fsub_not_enough_FMF(
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; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[Y:%.*]], [[X:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Z:%.*]], [[X]]
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; CHECK-NEXT: [[T3:%.*]] = fsub reassoc float [[T1]], [[T2]]
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; CHECK-NEXT: ret float [[T3]]
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;
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%t1 = fdiv fast float %y, %x
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%t2 = fdiv fast float %z, %x
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%t3 = fsub reassoc float %t1, %t2
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ret float %t3
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}
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; Negative test - extra uses should disable the fold.
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define float @fdiv_fadd_uses1(float %x, float %y, float %z) {
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; CHECK-LABEL: @fdiv_fadd_uses1(
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; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[X:%.*]], [[Z:%.*]]
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; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Y:%.*]], [[Z]]
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; CHECK-NEXT: [[R:%.*]] = fadd fast float [[T1]], [[T2]]
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; CHECK-NEXT: call void @use(float [[T1]])
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; CHECK-NEXT: ret float [[R]]
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;
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%t1 = fdiv fast float %x, %z
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%t2 = fdiv fast float %y, %z
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%r = fadd fast float %t1, %t2
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call void @use(float %t1)
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - extra uses should disable the fold.
|
|
|
|
define float @fdiv_fsub_uses2(float %x, float %y, float %z) {
|
|
; CHECK-LABEL: @fdiv_fsub_uses2(
|
|
; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[X:%.*]], [[Z:%.*]]
|
|
; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Y:%.*]], [[Z]]
|
|
; CHECK-NEXT: [[R:%.*]] = fsub fast float [[T1]], [[T2]]
|
|
; CHECK-NEXT: call void @use(float [[T2]])
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%t1 = fdiv fast float %x, %z
|
|
%t2 = fdiv fast float %y, %z
|
|
%r = fsub fast float %t1, %t2
|
|
call void @use(float %t2)
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - extra uses should disable the fold.
|
|
|
|
define float @fdiv_fsub_uses3(float %x, float %y, float %z) {
|
|
; CHECK-LABEL: @fdiv_fsub_uses3(
|
|
; CHECK-NEXT: [[T1:%.*]] = fdiv fast float [[X:%.*]], [[Z:%.*]]
|
|
; CHECK-NEXT: [[T2:%.*]] = fdiv fast float [[Y:%.*]], [[Z]]
|
|
; CHECK-NEXT: [[R:%.*]] = fsub fast float [[T1]], [[T2]]
|
|
; CHECK-NEXT: call void @use(float [[T1]])
|
|
; CHECK-NEXT: call void @use(float [[T2]])
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%t1 = fdiv fast float %x, %z
|
|
%t2 = fdiv fast float %y, %z
|
|
%r = fsub fast float %t1, %t2
|
|
call void @use(float %t1)
|
|
call void @use(float %t2)
|
|
ret float %r
|
|
}
|
|
|
|
; Constants are fine to combine if they are not denorms.
|
|
|
|
define float @fdiv_fadd_not_denorm(float %x) {
|
|
; CHECK-LABEL: @fdiv_fadd_not_denorm(
|
|
; CHECK-NEXT: [[R:%.*]] = fdiv fast float 0x3818000000000000, [[X:%.*]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%t1 = fdiv fast float 0x3810000000000000, %x
|
|
%t2 = fdiv fast float 0x3800000000000000, %x
|
|
%r = fadd fast float %t1, %t2
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - disabled if x+y is denormal.
|
|
|
|
define float @fdiv_fadd_denorm(float %x) {
|
|
; CHECK-LABEL: @fdiv_fadd_denorm(
|
|
; CHECK-NEXT: [[T1:%.*]] = fdiv fast float 0xB810000000000000, [[X:%.*]]
|
|
; CHECK-NEXT: [[T2:%.*]] = fdiv fast float 0x3800000000000000, [[X]]
|
|
; CHECK-NEXT: [[R:%.*]] = fadd fast float [[T1]], [[T2]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%t1 = fdiv fast float 0xB810000000000000, %x
|
|
%t2 = fdiv fast float 0x3800000000000000, %x
|
|
%r = fadd fast float %t1, %t2
|
|
ret float %r
|
|
}
|
|
|
|
; Negative test - disabled if x-y is denormal.
|
|
|
|
define float @fdiv_fsub_denorm(float %x) {
|
|
; CHECK-LABEL: @fdiv_fsub_denorm(
|
|
; CHECK-NEXT: [[T1:%.*]] = fdiv fast float 0x3810000000000000, [[X:%.*]]
|
|
; CHECK-NEXT: [[T2:%.*]] = fdiv fast float 0x3800000000000000, [[X]]
|
|
; CHECK-NEXT: [[R:%.*]] = fsub fast float [[T1]], [[T2]]
|
|
; CHECK-NEXT: ret float [[R]]
|
|
;
|
|
%t1 = fdiv fast float 0x3810000000000000, %x
|
|
%t2 = fdiv fast float 0x3800000000000000, %x
|
|
%r = fsub fast float %t1, %t2
|
|
ret float %r
|
|
}
|
|
|
|
define float @lerp_commute0(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_commute0(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast float [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast float [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub fast float 1.0, %c
|
|
%mul = fmul fast float %sub, %a
|
|
%bc = fmul fast float %c, %b
|
|
%add = fadd fast float %mul, %bc
|
|
ret float %add
|
|
}
|
|
|
|
define <2 x float> @lerp_commute1(<2 x float> %a, <2 x float> %b, <2 x float> %c) {
|
|
; CHECK-LABEL: @lerp_commute1(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast <2 x float> [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast <2 x float> [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast <2 x float> [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret <2 x float> [[ADD]]
|
|
;
|
|
%sub = fsub <2 x float> <float 1.0, float 1.0>, %c
|
|
%mul = fmul <2 x float> %sub, %a
|
|
%bc = fmul <2 x float> %c, %b
|
|
%add = fadd fast <2 x float> %bc, %mul
|
|
ret <2 x float> %add
|
|
}
|
|
|
|
define float @lerp_commute2(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_commute2(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc nsz float [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul reassoc nsz float [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd reassoc nsz float [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub float 1.0, %c
|
|
%mul = fmul float %sub, %a
|
|
%bc = fmul float %b, %c
|
|
%add = fadd reassoc nsz float %mul, %bc
|
|
ret float %add
|
|
}
|
|
|
|
define float @lerp_commute3(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_commute3(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub reassoc ninf nsz float [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul reassoc ninf nsz float [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd reassoc ninf nsz float [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub fast float 1.0, %c
|
|
%mul = fmul float %sub, %a
|
|
%bc = fmul float %b, %c
|
|
%add = fadd reassoc nsz ninf float %bc, %mul
|
|
ret float %add
|
|
}
|
|
|
|
define double @lerp_commute4(double %a, double %b, double %c) {
|
|
; CHECK-LABEL: @lerp_commute4(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast double [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast double [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast double [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret double [[ADD]]
|
|
;
|
|
%sub = fsub fast double 1.0, %c
|
|
%mul = fmul fast double %a, %sub
|
|
%bc = fmul fast double %c, %b
|
|
%add = fadd fast double %mul, %bc
|
|
ret double %add
|
|
}
|
|
|
|
define double @lerp_commute5(double %a, double %b, double %c) {
|
|
; CHECK-LABEL: @lerp_commute5(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast double [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast double [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast double [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret double [[ADD]]
|
|
;
|
|
%sub = fsub fast double 1.0, %c
|
|
%mul = fmul fast double %a, %sub
|
|
%bc = fmul fast double %c, %b
|
|
%add = fadd fast double %bc, %mul
|
|
ret double %add
|
|
}
|
|
|
|
define half @lerp_commute6(half %a, half %b, half %c) {
|
|
; CHECK-LABEL: @lerp_commute6(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast half [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast half [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast half [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret half [[ADD]]
|
|
;
|
|
%sub = fsub fast half 1.0, %c
|
|
%mul = fmul fast half %a, %sub
|
|
%bc = fmul fast half %b, %c
|
|
%add = fadd fast half %mul, %bc
|
|
ret half %add
|
|
}
|
|
|
|
define half @lerp_commute7(half %a, half %b, half %c) {
|
|
; CHECK-LABEL: @lerp_commute7(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = fsub fast half [[B:%.*]], [[A:%.*]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = fmul fast half [[TMP1]], [[C:%.*]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast half [[TMP2]], [[A]]
|
|
; CHECK-NEXT: ret half [[ADD]]
|
|
;
|
|
%sub = fsub fast half 1.0, %c
|
|
%mul = fmul fast half %a, %sub
|
|
%bc = fmul fast half %b, %c
|
|
%add = fadd fast half %bc, %mul
|
|
ret half %add
|
|
}
|
|
|
|
define float @lerp_extra_use1(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_extra_use1(
|
|
; CHECK-NEXT: [[SUB:%.*]] = fsub fast float 1.000000e+00, [[C:%.*]]
|
|
; CHECK-NEXT: [[MUL:%.*]] = fmul fast float [[SUB]], [[A:%.*]]
|
|
; CHECK-NEXT: [[BC:%.*]] = fmul fast float [[B:%.*]], [[C]]
|
|
; CHECK-NEXT: call void @use(float [[BC]])
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[BC]], [[MUL]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub fast float 1.0, %c
|
|
%mul = fmul fast float %a, %sub
|
|
%bc = fmul fast float %b, %c
|
|
call void @use(float %bc)
|
|
%add = fadd fast float %bc, %mul
|
|
ret float %add
|
|
}
|
|
|
|
define float @lerp_extra_use2(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_extra_use2(
|
|
; CHECK-NEXT: [[SUB:%.*]] = fsub fast float 1.000000e+00, [[C:%.*]]
|
|
; CHECK-NEXT: [[MUL:%.*]] = fmul fast float [[SUB]], [[A:%.*]]
|
|
; CHECK-NEXT: call void @use(float [[MUL]])
|
|
; CHECK-NEXT: [[BC:%.*]] = fmul fast float [[B:%.*]], [[C]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[BC]], [[MUL]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub fast float 1.0, %c
|
|
%mul = fmul fast float %a, %sub
|
|
call void @use(float %mul)
|
|
%bc = fmul fast float %b, %c
|
|
%add = fadd fast float %bc, %mul
|
|
ret float %add
|
|
}
|
|
|
|
define float @lerp_extra_use3(float %a, float %b, float %c) {
|
|
; CHECK-LABEL: @lerp_extra_use3(
|
|
; CHECK-NEXT: [[SUB:%.*]] = fsub fast float 1.000000e+00, [[C:%.*]]
|
|
; CHECK-NEXT: call void @use(float [[SUB]])
|
|
; CHECK-NEXT: [[MUL:%.*]] = fmul fast float [[SUB]], [[A:%.*]]
|
|
; CHECK-NEXT: [[BC:%.*]] = fmul fast float [[B:%.*]], [[C]]
|
|
; CHECK-NEXT: [[ADD:%.*]] = fadd fast float [[BC]], [[MUL]]
|
|
; CHECK-NEXT: ret float [[ADD]]
|
|
;
|
|
%sub = fsub fast float 1.0, %c
|
|
call void @use(float %sub)
|
|
%mul = fmul fast float %a, %sub
|
|
%bc = fmul fast float %b, %c
|
|
%add = fadd fast float %bc, %mul
|
|
ret float %add
|
|
}
|