| Evan Cheng | 400073d | 2009-12-18 07:40:29 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=x86-64 -mattr=+sse2,+break-sse-dep | FileCheck %s --check-prefix=YES |
| 2 | ; RUN: llc < %s -march=x86-64 -mattr=+sse2,-break-sse-dep | FileCheck %s --check-prefix=NO |
| 3 | |
| 4 | define double @t1(float* nocapture %x) nounwind readonly ssp { |
| 5 | entry: |
| 6 | ; YES: t1: |
| 7 | ; YES: movss (%rdi), %xmm0 |
| 8 | ; YES; cvtss2sd %xmm0, %xmm0 |
| 9 | |
| 10 | ; NO: t1: |
| 11 | ; NO; cvtss2sd (%rdi), %xmm0 |
| 12 | %0 = load float* %x, align 4 |
| 13 | %1 = fpext float %0 to double |
| 14 | ret double %1 |
| 15 | } |
| 16 | |
| 17 | define float @t2(double* nocapture %x) nounwind readonly ssp { |
| 18 | entry: |
| 19 | ; YES: t2: |
| 20 | ; YES: movsd (%rdi), %xmm0 |
| 21 | ; YES; cvtsd2ss %xmm0, %xmm0 |
| 22 | |
| 23 | ; NO: t2: |
| 24 | ; NO; cvtsd2ss (%rdi), %xmm0 |
| 25 | %0 = load double* %x, align 8 |
| 26 | %1 = fptrunc double %0 to float |
| 27 | ret float %1 |
| 28 | } |