| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -fast-isel -fast-isel-abort=1 -mtriple=x86_64-apple-darwin10 | FileCheck %s |
| ; RUN: llc < %s -fast-isel -mtriple=i686-- -mattr=+sse2 | FileCheck --check-prefix=SSE2 %s |
| |
| define double @doo(double %x) nounwind { |
| ; CHECK-LABEL: doo: |
| ; CHECK: ## %bb.0: |
| ; CHECK-NEXT: movq %xmm0, %rax |
| ; CHECK-NEXT: movabsq $-9223372036854775808, %rcx ## imm = 0x8000000000000000 |
| ; CHECK-NEXT: xorq %rax, %rcx |
| ; CHECK-NEXT: movq %rcx, %xmm0 |
| ; CHECK-NEXT: retq |
| ; |
| ; SSE2-LABEL: doo: |
| ; SSE2: # %bb.0: |
| ; SSE2-NEXT: pushl %ebp |
| ; SSE2-NEXT: movl %esp, %ebp |
| ; SSE2-NEXT: andl $-8, %esp |
| ; SSE2-NEXT: subl $8, %esp |
| ; SSE2-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero |
| ; SSE2-NEXT: xorps {{\.LCPI.*}}, %xmm0 |
| ; SSE2-NEXT: movlps %xmm0, (%esp) |
| ; SSE2-NEXT: fldl (%esp) |
| ; SSE2-NEXT: movl %ebp, %esp |
| ; SSE2-NEXT: popl %ebp |
| ; SSE2-NEXT: retl |
| %y = fsub double -0.0, %x |
| ret double %y |
| } |
| |
| define float @foo(float %x) nounwind { |
| ; CHECK-LABEL: foo: |
| ; CHECK: ## %bb.0: |
| ; CHECK-NEXT: movd %xmm0, %eax |
| ; CHECK-NEXT: xorl $2147483648, %eax ## imm = 0x80000000 |
| ; CHECK-NEXT: movd %eax, %xmm0 |
| ; CHECK-NEXT: retq |
| ; |
| ; SSE2-LABEL: foo: |
| ; SSE2: # %bb.0: |
| ; SSE2-NEXT: pushl %eax |
| ; SSE2-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero |
| ; SSE2-NEXT: xorps {{\.LCPI.*}}, %xmm0 |
| ; SSE2-NEXT: movss %xmm0, (%esp) |
| ; SSE2-NEXT: flds (%esp) |
| ; SSE2-NEXT: popl %eax |
| ; SSE2-NEXT: retl |
| %y = fsub float -0.0, %x |
| ret float %y |
| } |