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https://github.com/RPCS3/llvm-mirror.git
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526ea0f419
Summary: Honoring no signed zeroes is also available as a user control through clang separately regardless of fastmath or UnsafeFPMath context, DAG guards should reflect this context. Reviewers: spatel, arsenm, hfinkel, wristow, craig.topper Reviewed By: spatel Subscribers: rampitec, foad, nhaehnle, wuzish, nemanjai, jvesely, wdng, javed.absar, MaskRay, jsji Differential Revision: https://reviews.llvm.org/D65170 llvm-svn: 367486
107 lines
2.7 KiB
LLVM
107 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx < %s | FileCheck %s
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define float @test1(float %a) #0 {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fadd nnan reassoc nsz float %a, %a
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%r = fadd nnan reassoc nsz float %t1, %t1
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ret float %r
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}
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define float @test2(float %a) #0 {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fmul nnan reassoc nsz float 4.0, %a
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%t2 = fadd nnan reassoc nsz float %a, %a
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%r = fadd nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test3(float %a) #0 {
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; CHECK-LABEL: test3:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fmul nnan reassoc nsz float %a, 4.0
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%t2 = fadd nnan reassoc nsz float %a, %a
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%r = fadd nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test4(float %a) #0 {
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; CHECK-LABEL: test4:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fadd nnan reassoc nsz float %a, %a
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%t2 = fmul nnan reassoc nsz float 4.0, %a
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%r = fadd nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test5(float %a) #0 {
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; CHECK-LABEL: test5:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vmulss {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fadd nnan reassoc nsz float %a, %a
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%t2 = fmul nnan reassoc nsz float %a, 4.0
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%r = fadd nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test6(float %a) #0 {
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; CHECK-LABEL: test6:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fmul nnan reassoc nsz float 2.0, %a
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%t2 = fadd nnan reassoc nsz float %a, %a
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%r = fsub nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test7(float %a) #0 {
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; CHECK-LABEL: test7:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fmul nnan reassoc nsz float %a, 2.0
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%t2 = fadd nnan reassoc nsz float %a, %a
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%r = fsub nnan reassoc nsz float %t1, %t2
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ret float %r
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}
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define float @test8(float %a) #0 {
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; CHECK-LABEL: test8:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%t1 = fmul nsz float %a, 0.0
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%t2 = fadd nnan reassoc nsz float %a, %t1
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ret float %t2
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}
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define float @test9(float %a) #0 {
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; CHECK-LABEL: test9:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%t1 = fmul nsz float 0.0, %a
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%t2 = fadd nnan reassoc nsz float %t1, %a
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ret float %t2
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}
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define float @test10(float %a) #0 {
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; CHECK-LABEL: test10:
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; CHECK: # %bb.0:
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; CHECK-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; CHECK-NEXT: retq
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%t1 = fsub nsz float -0.0, %a
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%t2 = fadd nnan reassoc nsz float %a, %t1
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ret float %t2
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}
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