new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42953 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/truncstore-dag-combine.ll b/test/CodeGen/ARM/truncstore-dag-combine.ll
new file mode 100644 (file)
index 0000000..0e85fb6
--- /dev/null
+++ b/test/CodeGen/ARM/truncstore-dag-combine.ll
@@ -0,0 +1,18 @@
+; RUN: llvm-as < %s | llc -march=arm | not grep orr
+; RUN: llvm-as < %s | llc -march=arm | not grep mov
+
+define void @bar(i8* %P, i16* %Q) {
+entry:
+       %P1 = bitcast i8* %P to i16*            ; <i16*> [#uses=1]
+       %tmp = load i16* %Q, align 1            ; <i16> [#uses=1]
+       store i16 %tmp, i16* %P1, align 1
+       ret void
+}
+
+define void @foo(i8* %P, i32* %Q) {
+entry:
+       %P1 = bitcast i8* %P to i32*            ; <i32*> [#uses=1]
+       %tmp = load i32* %Q, align 1            ; <i32> [#uses=1]
+       store i32 %tmp, i32* %P1, align 1
+       ret void
+}