55 lines
1.4 KiB
LLVM
55 lines
1.4 KiB
LLVM
; Make sure this testcase codegens to the fabs instruction, not a call to fabsf
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; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse2,-sse3,-sse | FileCheck %s
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; RUN: llc < %s -mtriple=i686-apple-macosx -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck %s --check-prefix=UNSAFE
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; RUN: llc < %s -mtriple=x86_64-apple-macosx -O0 | FileCheck %s --check-prefix=NOOPT
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declare float @fabsf(float)
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declare x86_fp80 @fabsl(x86_fp80)
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; CHECK-LABEL: test1:
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; UNSAFE-LABEL: test1:
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; NOOPT-LABEL: test1:
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define float @test1(float %X) {
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%Y = call float @fabsf(float %X) readnone
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ret float %Y
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}
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; CHECK: {{^[ \t]+fabs$}}
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; UNSAFE: {{^[ \t]+fabs$}}
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; CHECK-NOT: fabs
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; UNSAFE-NOT: fabs
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; NOOPT-NOT: fabsf
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; CHECK-LABEL: test2:
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; UNSAFE-LABEL: test2:
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; NOOPT-LABEL: test2:
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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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; fabs is not used here.
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; CHECK-NOT: fabs
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; NOOPT-NOT: fabs
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; UNSAFE: {{^[ \t]+fabs$}}
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; UNSAFE-NOT: fabs
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; CHECK-LABEL: test3:
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; UNSAFE-LABEL: test3:
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; NOOPT-LABEL: test3:
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define x86_fp80 @test3(x86_fp80 %X) {
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%Y = call x86_fp80 @fabsl(x86_fp80 %X) readnone
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ret x86_fp80 %Y
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}
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; CHECK: {{^[ \t]+fabs$}}
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; UNSAFE: {{^[ \t]+fabs$}}
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; NOOPT: {{^[ \t]+fabs$}}
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; CHECK-NOT: fabs
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; UNSAFE-NOT: fabs
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; NOOPT-NOT: fabs
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