forked from OSchip/llvm-project
99 lines
2.8 KiB
LLVM
99 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=-sse,-sse2,-sse3 | FileCheck %s --check-prefix=X87
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=-sse,-sse2,-sse3 -enable-unsafe-fp-math -enable-no-nans-fp-math | FileCheck %s --check-prefix=X87UNSAFE
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
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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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; X87-LABEL: test1:
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; X87: # %bb.0:
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; X87-NEXT: flds {{[0-9]+}}(%esp)
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; X87-NEXT: fabs
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; X87-NEXT: retl
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;
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; X87UNSAFE-LABEL: test1:
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; X87UNSAFE: # %bb.0:
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; X87UNSAFE-NEXT: flds {{[0-9]+}}(%esp)
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; X87UNSAFE-NEXT: fabs
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; X87UNSAFE-NEXT: retl
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;
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; X64-LABEL: test1:
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; X64: # %bb.0:
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; X64-NEXT: andps {{.*}}(%rip), %xmm0
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; X64-NEXT: retq
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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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define double @test2(double %X) {
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; X87-LABEL: test2:
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; X87: # %bb.0:
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; X87-NEXT: fldl {{[0-9]+}}(%esp)
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; X87-NEXT: fldz
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; X87-NEXT: fchs
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; X87-NEXT: fxch %st(1)
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; X87-NEXT: fucom %st(1)
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; X87-NEXT: fstp %st(1)
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; X87-NEXT: fnstsw %ax
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; X87-NEXT: # kill: def $ah killed $ah killed $ax
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; X87-NEXT: sahf
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; X87-NEXT: fld %st(0)
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; X87-NEXT: fchs
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; X87-NEXT: jae .LBB1_2
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; X87-NEXT: # %bb.1:
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; X87-NEXT: fstp %st(1)
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; X87-NEXT: fldz
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; X87-NEXT: .LBB1_2:
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; X87-NEXT: fstp %st(0)
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; X87-NEXT: retl
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;
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; X87UNSAFE-LABEL: test2:
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; X87UNSAFE: # %bb.0:
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; X87UNSAFE-NEXT: fldl {{[0-9]+}}(%esp)
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; X87UNSAFE-NEXT: fabs
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; X87UNSAFE-NEXT: retl
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;
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; X64-LABEL: test2:
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; X64: # %bb.0:
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; X64-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero
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; X64-NEXT: movapd %xmm1, %xmm2
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; X64-NEXT: unpcklpd {{.*#+}} xmm2 = xmm2[0],xmm1[0]
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; X64-NEXT: xorpd %xmm0, %xmm2
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; X64-NEXT: cmplesd %xmm0, %xmm1
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; X64-NEXT: movapd %xmm1, %xmm3
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; X64-NEXT: andnpd %xmm2, %xmm3
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; X64-NEXT: andpd %xmm0, %xmm1
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; X64-NEXT: orpd %xmm3, %xmm1
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; X64-NEXT: movapd %xmm1, %xmm0
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; X64-NEXT: retq
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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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; X87-LABEL: test3:
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; X87: # %bb.0:
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; X87-NEXT: fldt {{[0-9]+}}(%esp)
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; X87-NEXT: fabs
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; X87-NEXT: retl
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;
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; X87UNSAFE-LABEL: test3:
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; X87UNSAFE: # %bb.0:
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; X87UNSAFE-NEXT: fldt {{[0-9]+}}(%esp)
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; X87UNSAFE-NEXT: fabs
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; X87UNSAFE-NEXT: retl
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;
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; X64-LABEL: test3:
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; X64: # %bb.0:
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; X64-NEXT: fldt {{[0-9]+}}(%rsp)
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; X64-NEXT: fabs
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; X64-NEXT: retq
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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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