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252134602f
These are named following the IEEE-754 names for these functions, rather than the libm fmin / fmax to avoid possible ambiguities. Some languages may implement something resembling fmin / fmax which return NaN if either operand is to propagate errors. These implement the IEEE-754 semantics of returning the other operand if either is a NaN representing missing data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220341 91177308-0d34-0410-b5e6-96231b3b80d8
111 lines
4.3 KiB
LLVM
111 lines
4.3 KiB
LLVM
; RUN: opt -S -simplifycfg -phi-node-folding-threshold=2 < %s | FileCheck %s
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declare float @llvm.sqrt.f32(float) nounwind readonly
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declare float @llvm.fma.f32(float, float, float) nounwind readonly
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declare float @llvm.fmuladd.f32(float, float, float) nounwind readonly
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declare float @llvm.fabs.f32(float) nounwind readonly
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declare float @llvm.minnum.f32(float, float) nounwind readonly
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declare float @llvm.maxnum.f32(float, float) nounwind readonly
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; CHECK-LABEL: @sqrt_test(
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; CHECK: select
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define void @sqrt_test(float addrspace(1)* noalias nocapture %out, float %a) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_sqrt.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.sqrt.f32(float %a) nounwind readnone
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br label %test_sqrt.exit
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test_sqrt.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: @fabs_test(
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; CHECK: select
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define void @fabs_test(float addrspace(1)* noalias nocapture %out, float %a) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_fabs.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.fabs.f32(float %a) nounwind readnone
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br label %test_fabs.exit
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test_fabs.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: @fma_test(
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; CHECK: select
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define void @fma_test(float addrspace(1)* noalias nocapture %out, float %a, float %b, float %c) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_fma.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.fma.f32(float %a, float %b, float %c) nounwind readnone
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br label %test_fma.exit
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test_fma.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: @fmuladd_test(
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; CHECK: select
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define void @fmuladd_test(float addrspace(1)* noalias nocapture %out, float %a, float %b, float %c) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_fmuladd.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.fmuladd.f32(float %a, float %b, float %c) nounwind readnone
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br label %test_fmuladd.exit
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test_fmuladd.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: @minnum_test(
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; CHECK: select
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define void @minnum_test(float addrspace(1)* noalias nocapture %out, float %a, float %b) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_minnum.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.minnum.f32(float %a, float %b) nounwind readnone
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br label %test_minnum.exit
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test_minnum.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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; CHECK-LABEL: @maxnum_test(
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; CHECK: select
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define void @maxnum_test(float addrspace(1)* noalias nocapture %out, float %a, float %b) nounwind {
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entry:
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%cmp.i = fcmp olt float %a, 0.000000e+00
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br i1 %cmp.i, label %test_maxnum.exit, label %cond.else.i
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cond.else.i: ; preds = %entry
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%0 = tail call float @llvm.maxnum.f32(float %a, float %b) nounwind readnone
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br label %test_maxnum.exit
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test_maxnum.exit: ; preds = %cond.else.i, %entry
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%cond.i = phi float [ %0, %cond.else.i ], [ 0x7FF8000000000000, %entry ]
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store float %cond.i, float addrspace(1)* %out, align 4
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ret void
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}
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