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-rw-r--r--test/CodeGen/X86/2007-06-15-IntToMMX.ll17
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2007-06-15-IntToMMX.ll b/test/CodeGen/X86/2007-06-15-IntToMMX.ll
new file mode 100644
index 000000000000..e608ac3ecb97
--- /dev/null
+++ b/test/CodeGen/X86/2007-06-15-IntToMMX.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | llc -march=x86-64 -mattr=+mmx | grep paddusw
+@R = external global <1 x i64> ; <<1 x i64>*> [#uses=1]
+
+define void @foo(<1 x i64> %A, <1 x i64> %B) {
+entry:
+ %tmp4 = bitcast <1 x i64> %B to <4 x i16> ; <<4 x i16>> [#uses=1]
+ %tmp6 = bitcast <1 x i64> %A to <4 x i16> ; <<4 x i16>> [#uses=1]
+ %tmp7 = tail call <4 x i16> @llvm.x86.mmx.paddus.w( <4 x i16> %tmp6, <4 x i16> %tmp4 ) ; <<4 x i16>> [#uses=1]
+ %tmp8 = bitcast <4 x i16> %tmp7 to <1 x i64> ; <<1 x i64>> [#uses=1]
+ store <1 x i64> %tmp8, <1 x i64>* @R
+ tail call void @llvm.x86.mmx.emms( )
+ ret void
+}
+
+declare <4 x i16> @llvm.x86.mmx.paddus.w(<4 x i16>, <4 x i16>)
+
+declare void @llvm.x86.mmx.emms()