| ; RUN: llc < %s -march=x86 -mattr=+sse2,+mmx | FileCheck %s |
| ; originally from PR2687, but things don't work that way any more. |
| ; there are no MMX instructions here; we use XMM. |
| |
| define <2 x double> @a(<2 x i32> %x) nounwind { |
| entry: |
| ; CHECK-LABEL: a |
| ; CHECK-NOT: unpcklpd |
| %y = sitofp <2 x i32> %x to <2 x double> |
| ret <2 x double> %y |
| } |
| |
| define <2 x i32> @b(<2 x double> %x) nounwind { |
| entry: |
| ; CHECK-LABEL: b |
| ; CHECK-NOT: unpckhpd |
| %y = fptosi <2 x double> %x to <2 x i32> |
| ret <2 x i32> %y |
| } |
| |
| ; This is how to get MMX instructions. |
| |
| define <2 x double> @a2(x86_mmx %x) nounwind { |
| entry: |
| ; CHECK-LABEL: a2 |
| ; CHECK: cvtpi2pd |
| ; CHECK-NOT: cvtpi2pd |
| %y = tail call <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx %x) |
| ret <2 x double> %y |
| } |
| |
| define x86_mmx @b2(<2 x double> %x) nounwind { |
| entry: |
| ; CHECK-LABEL: b2 |
| ; CHECK: cvttpd2pi |
| ; CHECK-NOT: cvttpd2pi |
| %y = tail call x86_mmx @llvm.x86.sse.cvttpd2pi (<2 x double> %x) |
| ret x86_mmx %y |
| } |
| |
| declare <2 x double> @llvm.x86.sse.cvtpi2pd(x86_mmx) |
| declare x86_mmx @llvm.x86.sse.cvttpd2pi(<2 x double>) |