Testcases for MMX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36408 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/mmx-insert-element.ll b/test/CodeGen/X86/mmx-insert-element.ll
new file mode 100644 (file)
index 0000000..3f2e402
--- /dev/null
+++ b/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
+}

diff --git a/test/CodeGen/X86/mmx-punpckhdq.ll b/test/CodeGen/X86/mmx-punpckhdq.ll
new file mode 100644 (file)
index 0000000..57c73c7
--- /dev/null
+++ b/test/CodeGen/X86/mmx-punpckhdq.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx | grep punpckhdq | wc -l | grep 1
+
+define void @bork(<1 x i64>* %x) {
+entry:
+       %tmp2 = load <1 x i64>* %x              ; <<1 x i64>> [#uses=1]
+       %tmp6 = bitcast <1 x i64> %tmp2 to <2 x i32>            ; <<2 x i32>> [#uses=1]
+       %tmp9 = shufflevector <2 x i32> %tmp6, <2 x i32> undef, <2 x i32> < i32 1, i32 1 >              ; <<2 x i32>> [#uses=1]
+       %tmp10 = bitcast <2 x i32> %tmp9 to <1 x i64>           ; <<1 x i64>> [#uses=1]
+       store <1 x i64> %tmp10, <1 x i64>* %x
+       tail call void @llvm.x86.mmx.emms( )
+       ret void
+}
+
+declare void @llvm.x86.mmx.emms()