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60108e96bb
-enable-no-nans-fp-math and -enable-no-infs-fp-math. All of the current codegen fp math optimizations only care whether the fp arithmetics arguments and results can never be NaN. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108465 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
753 B
LLVM
29 lines
753 B
LLVM
; Make sure this testcase codegens to the fabs instruction, not a call to fabsf
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; RUN: llc < %s -march=x86 -mattr=-sse2,-sse3,-sse | grep fabs\$ | \
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; RUN: count 2
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; RUN: llc < %s -march=x86 -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | \
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; RUN: grep fabs\$ | count 3
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declare float @fabsf(float)
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declare x86_fp80 @fabsl(x86_fp80)
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define float @test1(float %X) {
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%Y = call float @fabsf(float %X)
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ret float %Y
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}
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define double @test2(double %X) {
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%Y = fcmp oge double %X, -0.0
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%Z = fsub double -0.0, %X
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%Q = select i1 %Y, double %X, double %Z
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ret double %Q
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}
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define x86_fp80 @test3(x86_fp80 %X) {
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%Y = call x86_fp80 @fabsl(x86_fp80 %X)
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ret x86_fp80 %Y
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}
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