68 lines
2.0 KiB
LLVM
68 lines
2.0 KiB
LLVM
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; Check that we can enable/disable NoInfsFPMath and NoNaNsInFPMath via function
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; attributes. An attribute on one function should not magically apply to the
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; next one.
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; RUN: llc < %s -mtriple=powerpc64-unknown-unknown -mcpu=pwr7 -mattr=-vsx \
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; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=SAFE
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; RUN: llc < %s -mtriple=powerpc64-unknown-unknown -mcpu=pwr7 -mattr=-vsx \
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; RUN: -enable-no-infs-fp-math -enable-no-nans-fp-math \
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; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=UNSAFE
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; The fcmp+select in these functions should be converted to a fsel instruction
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; when both NoInfsFPMath and NoNaNsInFPMath are enabled.
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; CHECK-LABEL: default0:
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define double @default0(double %a, double %y, double %z) {
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entry:
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; SAFE-NOT: fsel
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; UNSAFE: fsel
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%cmp = fcmp ult double %a, 0.000000e+00
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%z.y = select i1 %cmp, double %z, double %y
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ret double %z.y
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}
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; CHECK-LABEL: unsafe_math_off:
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define double @unsafe_math_off(double %a, double %y, double %z) #0 #2 {
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entry:
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; SAFE-NOT: fsel
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; UNSAFE-NOT: fsel
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%cmp = fcmp ult double %a, 0.000000e+00
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%z.y = select i1 %cmp, double %z, double %y
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ret double %z.y
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}
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; CHECK-LABEL: default1:
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define double @default1(double %a, double %y, double %z) {
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; SAFE-NOT: fsel
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; UNSAFE: fsel
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%cmp = fcmp ult double %a, 0.000000e+00
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%z.y = select i1 %cmp, double %z, double %y
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ret double %z.y
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}
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; CHECK-LABEL: unsafe_math_on:
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define double @unsafe_math_on(double %a, double %y, double %z) #1 #3 {
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entry:
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; SAFE-NOT: fsel
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; UNSAFE-NOT: fsel
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%cmp = fcmp ult double %a, 0.000000e+00
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%z.y = select i1 %cmp, double %z, double %y
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ret double %z.y
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}
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; CHECK-LABEL: default2:
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define double @default2(double %a, double %y, double %z) {
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; SAFE-NOT: fsel
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; UNSAFE: fsel
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%cmp = fcmp ult double %a, 0.000000e+00
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%z.y = select i1 %cmp, double %z, double %y
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ret double %z.y
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}
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attributes #0 = { "no-infs-fp-math"="false" }
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attributes #1 = { "no-nans-fp-math"="false" }
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attributes #2 = { "no-infs-fp-math"="false" }
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attributes #3 = { "no-infs-fp-math"="true" }
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