New testcase, neither should require a register-register copy

llvm-svn: 23290

1 files changed, 26 insertions, 0 deletions

diff --git a/llvm/test/Regression/CodeGen/PowerPC/rlwimi-commute.ll b/llvm/test/Regression/CodeGen/PowerPC/rlwimi-commute.ll
new file mode 100644
index 00000000000..e6719ebd878
--- /dev/null
+++ b/llvm/test/Regression/CodeGen/PowerPC/rlwimi-commute.ll
@@ -0,0 +1,26 @@
+; RUN: llvm-as < %s | llc -march=ppc32 | grep rlwimi &&
+; RUN: llvm-as < %s | llc -march=ppc32 | not grep 'or '
+
+; Make sure there is no register-register copies here.
+
+void %test1(int *%A, int *%B, int *%D, int* %E) {
+	%A = load int* %A
+	%B = load int* %B
+	%X = and int %A, 15
+	%Y = and int %B, -16
+	%Z = or int %X, %Y
+	store int %Z, int* %D
+	store int %A, int* %E
+	ret void
+}
+
+void %test2(int *%A, int *%B, int *%D, int* %E) {
+	%A = load int* %A
+	%B = load int* %B
+	%X = and int %A, 15
+	%Y = and int %B, -16
+	%Z = or int %X, %Y
+	store int %Z, int* %D
+	store int %B, int* %E
+	ret void
+}