Testcases for MMX.

llvm-svn: 36408

1 files changed, 23 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/X86/mmx-insert-element.ll b/llvm/test/CodeGen/X86/mmx-insert-element.ll
new file mode 100644
index 00000000000..3f2e4020d7c
--- /dev/null
+++ b/llvm/test/CodeGen/X86/mmx-insert-element.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx | grep movq | wc -l | grep 3
+
+; FIXME: This code outputs:
+;
+;   subl $28, %esp
+;   movl 32(%esp), %eax
+;   movd %eax, %mm0
+;   movq %mm0, (%esp)
+;   movl (%esp), %eax
+;   movl %eax, 20(%esp)
+;   movq %mm0, 8(%esp)
+;   movl 12(%esp), %eax
+;   movl %eax, 16(%esp)
+;   movq 16(%esp), %mm0
+;   addl $28, %esp
+;
+; Which is ugly. We need to fix this.
+
+define <2 x i32> @qux(i32 %A) {
+entry:
+	%tmp3 = insertelement <2 x i32> < i32 0, i32 undef >, i32 %A, i32 1		; <<2 x i32>> [#uses=1]
+	ret <2 x i32> %tmp3
+}