1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=X86 3; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefixes=X64 4 5define float @fneg_strict_fadd_to_strict_fsub(float %x, float %y) nounwind strictfp { 6; X86-LABEL: fneg_strict_fadd_to_strict_fsub: 7; X86: # %bb.0: 8; X86-NEXT: pushl %eax 9; X86-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero 10; X86-NEXT: subss {{[0-9]+}}(%esp), %xmm0 11; X86-NEXT: movss %xmm0, (%esp) 12; X86-NEXT: flds (%esp) 13; X86-NEXT: wait 14; X86-NEXT: popl %eax 15; X86-NEXT: retl 16; 17; X64-LABEL: fneg_strict_fadd_to_strict_fsub: 18; X64: # %bb.0: 19; X64-NEXT: subss %xmm1, %xmm0 20; X64-NEXT: retq 21 %neg = fneg float %y 22 %add = call float @llvm.experimental.constrained.fadd.f32(float %x, float %neg, metadata!"round.dynamic", metadata!"fpexcept.strict") 23 ret float %add 24} 25 26define float @fneg_strict_fadd_to_strict_fsub_2(float %x, float %y) nounwind strictfp { 27; X86-LABEL: fneg_strict_fadd_to_strict_fsub_2: 28; X86: # %bb.0: 29; X86-NEXT: pushl %eax 30; X86-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero 31; X86-NEXT: subss {{[0-9]+}}(%esp), %xmm0 32; X86-NEXT: movss %xmm0, (%esp) 33; X86-NEXT: flds (%esp) 34; X86-NEXT: wait 35; X86-NEXT: popl %eax 36; X86-NEXT: retl 37; 38; X64-LABEL: fneg_strict_fadd_to_strict_fsub_2: 39; X64: # %bb.0: 40; X64-NEXT: subss %xmm1, %xmm0 41; X64-NEXT: retq 42 %neg = fneg float %y 43 %add = call float @llvm.experimental.constrained.fadd.f32(float %neg, float %x, metadata!"round.dynamic", metadata!"fpexcept.strict") 44 ret float %add 45} 46 47define double @fneg_strict_fadd_to_strict_fsub_d(double %x, double %y) nounwind strictfp { 48; X86-LABEL: fneg_strict_fadd_to_strict_fsub_d: 49; X86: # %bb.0: 50; X86-NEXT: pushl %ebp 51; X86-NEXT: movl %esp, %ebp 52; X86-NEXT: andl $-8, %esp 53; X86-NEXT: subl $8, %esp 54; X86-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero 55; X86-NEXT: subsd 16(%ebp), %xmm0 56; X86-NEXT: movsd %xmm0, (%esp) 57; X86-NEXT: fldl (%esp) 58; X86-NEXT: wait 59; X86-NEXT: movl %ebp, %esp 60; X86-NEXT: popl %ebp 61; X86-NEXT: retl 62; 63; X64-LABEL: fneg_strict_fadd_to_strict_fsub_d: 64; X64: # %bb.0: 65; X64-NEXT: subsd %xmm1, %xmm0 66; X64-NEXT: retq 67 %neg = fneg double %y 68 %add = call double @llvm.experimental.constrained.fadd.f64(double %x, double %neg, metadata!"round.dynamic", metadata!"fpexcept.strict") 69 ret double %add 70} 71 72define double @fneg_strict_fadd_to_strict_fsub_2d(double %x, double %y) nounwind strictfp { 73; X86-LABEL: fneg_strict_fadd_to_strict_fsub_2d: 74; X86: # %bb.0: 75; X86-NEXT: pushl %ebp 76; X86-NEXT: movl %esp, %ebp 77; X86-NEXT: andl $-8, %esp 78; X86-NEXT: subl $8, %esp 79; X86-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero 80; X86-NEXT: subsd 16(%ebp), %xmm0 81; X86-NEXT: movsd %xmm0, (%esp) 82; X86-NEXT: fldl (%esp) 83; X86-NEXT: wait 84; X86-NEXT: movl %ebp, %esp 85; X86-NEXT: popl %ebp 86; X86-NEXT: retl 87; 88; X64-LABEL: fneg_strict_fadd_to_strict_fsub_2d: 89; X64: # %bb.0: 90; X64-NEXT: subsd %xmm1, %xmm0 91; X64-NEXT: retq 92 %neg = fneg double %y 93 %add = call double @llvm.experimental.constrained.fadd.f64(double %neg, double %x, metadata!"round.dynamic", metadata!"fpexcept.strict") 94 ret double %add 95} 96 97 98declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata) 99declare double @llvm.experimental.constrained.fadd.f64(double, double, metadata, metadata) 100