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80 lines
2.1 KiB
LLVM
80 lines
2.1 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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define float @test1(float %A, float %B, i1 %C) {
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EntryBlock:
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;; A*(1 - uitofp i1 C) -> select C, 0, A
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%cf = uitofp i1 %C to float
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%mc = fsub float 1.000000e+00, %cf
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%p1 = fmul fast float %A, %mc
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ret float %p1
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; CHECK-LABEL: @test1(
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; CHECK: select i1 %C, float -0.000000e+00, float %A
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}
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define float @test2(float %A, float %B, i1 %C) {
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EntryBlock:
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;; B*(uitofp i1 C) -> select C, B, 0
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%cf = uitofp i1 %C to float
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%p2 = fmul fast float %B, %cf
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ret float %p2
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; CHECK-LABEL: @test2(
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; CHECK: select i1 %C, float %B, float -0.000000e+00
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}
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define float @test3(float %A, float %B, i1 %C) {
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EntryBlock:
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;; select C, 0, B + select C, A, 0 -> select C, A, B
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%cf = uitofp i1 %C to float
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%s1 = select i1 %C, float 0.000000e+00, float %B
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%s2 = select i1 %C, float %A, float 0.000000e+00
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%sum = fadd fast float %s1, %s2
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ret float %sum
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; CHECK-LABEL: @test3(
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; CHECK: select i1 %C, float %A, float %B
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}
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define float @test4(float %A, float %B, i1 %C) {
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EntryBlock:
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;; B*(uitofp i1 C) + A*(1 - uitofp i1 C) -> select C, A, B
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%cf = uitofp i1 %C to float
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%mc = fsub fast float 1.000000e+00, %cf
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%p1 = fmul fast float %A, %mc
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%p2 = fmul fast float %B, %cf
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%s1 = fadd fast float %p2, %p1
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ret float %s1
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; CHECK-LABEL: @test4(
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; CHECK: select i1 %C, float %B, float %A
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}
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define float @test5(float %A, float %B, i1 %C) {
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EntryBlock:
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;; A*(1 - uitofp i1 C) + B*(uitofp i1 C) -> select C, A, B
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%cf = uitofp i1 %C to float
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%mc = fsub fast float 1.000000e+00, %cf
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%p1 = fmul fast float %A, %mc
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%p2 = fmul fast float %B, %cf
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%s1 = fadd fast float %p1, %p2
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ret float %s1
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; CHECK-LABEL: @test5(
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; CHECK: select i1 %C, float %B, float %A
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}
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; PR15952
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define float @test6(float %A, float %B, i32 %C) {
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%cf = uitofp i32 %C to float
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%mc = fsub float 1.000000e+00, %cf
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%p1 = fmul fast float %A, %mc
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ret float %p1
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; CHECK-LABEL: @test6(
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; CHECK: uitofp
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}
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define float @test7(float %A, float %B, i32 %C) {
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%cf = uitofp i32 %C to float
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%p2 = fmul fast float %B, %cf
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ret float %p2
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; CHECK-LABEL: @test7(
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; CHECK: uitofp
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}
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