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Diffstat (limited to 'test/CodeGen/X86/scalar-extract.ll')
| -rw-r--r-- | test/CodeGen/X86/scalar-extract.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGen/X86/scalar-extract.ll b/test/CodeGen/X86/scalar-extract.ll new file mode 100644 index 0000000000000..172c424a782f1 --- /dev/null +++ b/test/CodeGen/X86/scalar-extract.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx -o %t -f +; RUN: not grep movq %t + +; Check that widening doesn't introduce a mmx register in this case when +; a simple load/store would suffice. + +define void @foo(<2 x i16>* %A, <2 x i16>* %B) { +entry: + %tmp1 = load <2 x i16>* %A ; <<2 x i16>> [#uses=1] + store <2 x i16> %tmp1, <2 x i16>* %B + ret void +} + |