diff options
Diffstat (limited to 'test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll b/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll index 60be0d51e7..2dc1deaf17 100644 --- a/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll +++ b/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll @@ -1,6 +1,9 @@ +; RUN: llc < %s -march=x86 -mattr=+sse2 -mattr=+mmx | grep unpcklpd +; RUN: llc < %s -march=x86 -mattr=+sse2 -mattr=+mmx | grep unpckhpd ; RUN: llc < %s -march=x86 -mattr=+sse2 | grep cvttpd2pi | count 1 ; RUN: llc < %s -march=x86 -mattr=+sse2 | grep cvtpi2pd | count 1 -; PR2687 +; 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: @@ -13,3 +16,20 @@ entry: %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: + %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: + %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>) |