forked from OSchip/llvm-project
214 lines
6.3 KiB
LLVM
214 lines
6.3 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=+fma | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+fma | FileCheck %s --check-prefix=X64
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define float @f1(float %a, float %b, float %c) {
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; X86-LABEL: f1:
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; X86: # %bb.0:
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; X86-NEXT: pushl %eax
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; X86-NEXT: vmovss {{.*#+}} xmm1 = mem[0],zero,zero,zero
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; X86-NEXT: vfmadd213ss {{.*#+}} xmm1 = (xmm0 * xmm1) + mem
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; X86-NEXT: vmovss %xmm1, (%esp)
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; X86-NEXT: flds (%esp)
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; X86-NEXT: popl %eax
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: f1:
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; X64: # %bb.0:
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; X64-NEXT: vfmadd213ss {{.*#+}} xmm0 = (xmm1 * xmm0) + xmm2
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; X64-NEXT: retq
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%mul = fmul fast float %b, %a
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%add = fadd fast float %mul, %c
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ret float %add
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}
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define float @f2(float %a, float %b, float %c) {
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; X86-LABEL: f2:
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; X86: # %bb.0:
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; X86-NEXT: pushl %eax
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; X86-NEXT: vmulss {{[0-9]+}}(%esp), %xmm0, %xmm0
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: vaddss {{[0-9]+}}(%esp), %xmm0, %xmm0
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; X86-NEXT: vmovss %xmm0, (%esp)
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; X86-NEXT: flds (%esp)
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; X86-NEXT: popl %eax
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl
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;
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; X64-LABEL: f2:
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; X64: # %bb.0:
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; X64-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; X64-NEXT: #ARITH_FENCE
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; X64-NEXT: vaddss %xmm2, %xmm0, %xmm0
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; X64-NEXT: retq
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%mul = fmul fast float %b, %a
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%tmp = call float @llvm.arithmetic.fence.f32(float %mul)
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%add = fadd fast float %tmp, %c
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ret float %add
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}
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define double @f3(double %a) {
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; X86-LABEL: f3:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: .cfi_offset %ebp, -8
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; X86-NEXT: movl %esp, %ebp
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; X86-NEXT: .cfi_def_cfa_register %ebp
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; X86-NEXT: andl $-8, %esp
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; X86-NEXT: subl $8, %esp
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; X86-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
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; X86-NEXT: vmulsd {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0, %xmm0
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; X86-NEXT: vmovsd %xmm0, (%esp)
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; X86-NEXT: fldl (%esp)
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; X86-NEXT: movl %ebp, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: .cfi_def_cfa %esp, 4
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; X86-NEXT: retl
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;
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; X64-LABEL: f3:
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; X64: # %bb.0:
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; X64-NEXT: vmulsd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; X64-NEXT: retq
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%1 = fadd fast double %a, %a
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%2 = fadd fast double %a, %a
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%3 = fadd fast double %1, %2
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ret double %3
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}
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define double @f4(double %a) {
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; X86-LABEL: f4:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: .cfi_offset %ebp, -8
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; X86-NEXT: movl %esp, %ebp
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; X86-NEXT: .cfi_def_cfa_register %ebp
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; X86-NEXT: andl $-8, %esp
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; X86-NEXT: subl $8, %esp
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; X86-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
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; X86-NEXT: vaddsd %xmm0, %xmm0, %xmm0
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; X86-NEXT: vmovapd %xmm0, %xmm1
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: vaddsd %xmm0, %xmm1, %xmm0
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; X86-NEXT: vmovsd %xmm0, (%esp)
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; X86-NEXT: fldl (%esp)
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; X86-NEXT: movl %ebp, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: .cfi_def_cfa %esp, 4
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; X86-NEXT: retl
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;
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; X64-LABEL: f4:
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; X64: # %bb.0:
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; X64-NEXT: vaddsd %xmm0, %xmm0, %xmm0
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; X64-NEXT: vmovapd %xmm0, %xmm1
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; X64-NEXT: #ARITH_FENCE
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; X64-NEXT: vaddsd %xmm0, %xmm1, %xmm0
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; X64-NEXT: retq
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%1 = fadd fast double %a, %a
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%t = call double @llvm.arithmetic.fence.f64(double %1)
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%2 = fadd fast double %a, %a
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%3 = fadd fast double %t, %2
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ret double %3
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}
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define <2 x float> @f5(<2 x float> %a) {
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; X86-LABEL: f5:
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; X86: # %bb.0:
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; X86-NEXT: vmulps {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0, %xmm0
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; X86-NEXT: retl
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;
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; X64-LABEL: f5:
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; X64: # %bb.0:
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; X64-NEXT: vmulps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; X64-NEXT: retq
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%1 = fadd fast <2 x float> %a, %a
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%2 = fadd fast <2 x float> %a, %a
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%3 = fadd fast <2 x float> %1, %2
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ret <2 x float> %3
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}
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define <2 x float> @f6(<2 x float> %a) {
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; X86-LABEL: f6:
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; X86: # %bb.0:
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; X86-NEXT: vaddps %xmm0, %xmm0, %xmm0
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; X86-NEXT: vmovaps %xmm0, %xmm1
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; X86-NEXT: retl
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;
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; X64-LABEL: f6:
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; X64: # %bb.0:
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; X64-NEXT: vaddps %xmm0, %xmm0, %xmm0
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; X64-NEXT: vmovaps %xmm0, %xmm1
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; X64-NEXT: #ARITH_FENCE
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; X64-NEXT: vaddps %xmm0, %xmm1, %xmm0
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; X64-NEXT: retq
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%1 = fadd fast <2 x float> %a, %a
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%t = call <2 x float> @llvm.arithmetic.fence.v2f32(<2 x float> %1)
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%2 = fadd fast <2 x float> %a, %a
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%3 = fadd fast <2 x float> %t, %2
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ret <2 x float> %3
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}
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; This @f7 IR test can be generated from flowing c test:
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;
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; typedef __float128 TYPE;
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; TYPE foo(TYPE *qr) {
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; TYPE re =__arithmetic_fence(*qr);
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; return re;
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;}
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;
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; with flowing build command:
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; clang -cc1 -triple i386-pc-linux-gnu -mreassociate t.c -emit-llvm -O2
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define dso_local fp128 @foo(fp128* nocapture readonly %qr) local_unnamed_addr{
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; X86-LABEL: foo:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %edi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 12
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; X86-NEXT: .cfi_offset %esi, -12
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; X86-NEXT: .cfi_offset %edi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: movl 12(%ecx), %edx
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; X86-NEXT: movl 8(%ecx), %esi
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; X86-NEXT: movl (%ecx), %edi
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; X86-NEXT: movl 4(%ecx), %ecx
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: #ARITH_FENCE
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; X86-NEXT: movl %edx, 12(%eax)
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; X86-NEXT: movl %esi, 8(%eax)
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; X86-NEXT: movl %ecx, 4(%eax)
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; X86-NEXT: movl %edi, (%eax)
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %edi
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: retl $4
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;
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; X64-LABEL: foo:
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; X64: # %bb.0: # %entry
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; X64-NEXT: vmovaps (%rdi), %xmm0
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; X64-NEXT: #ARITH_FENCE
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; X64-NEXT: retq
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entry:
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%0 = load fp128, fp128* %qr, align 16
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%1 = tail call reassoc fp128 @llvm.arithmetic.fence.f128(fp128 %0)
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ret fp128 %1
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}
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declare fp128 @llvm.arithmetic.fence.f128(fp128)
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declare float @llvm.arithmetic.fence.f32(float)
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declare double @llvm.arithmetic.fence.f64(double)
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declare <2 x float> @llvm.arithmetic.fence.v2f32(<2 x float>)
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