Regression is gone, don't try to find it on clean target.

llvm-svn: 33296

1 files changed, 53 insertions, 0 deletions

diff --git a/llvm/test/CodeGen/PowerPC/small-arguments.ll b/llvm/test/CodeGen/PowerPC/small-arguments.ll
new file mode 100644
index 00000000000..0068427772b
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/small-arguments.ll
@@ -0,0 +1,53 @@
+; RUN: llvm-as < %s | llc -march=ppc32 &&
+; RUN: llvm-as < %s | llc -march=ppc32 | not grep 'extsh\|rlwinm'
+
+declare i16 %foo() sext 
+
+define i32 %test1(i16 sext %X) {
+	%Y = sext i16 %X to i32  ;; dead
+	ret i32 %Y
+}
+
+define i32 %test2(i16 zext %X) {
+	%Y = sext i16 %X to i32
+	%Z = and i32 %Y, 65535      ;; dead
+	ret i32 %Z
+}
+
+define void %test3() {
+	%tmp.0 = call i16 %foo() sext            ;; no extsh!
+	%tmp.1 = icmp slt i16 %tmp.0, 1234
+	br i1 %tmp.1, label %then, label %UnifiedReturnBlock
+
+then:	
+	call i32 %test1(i16 0 sext)
+	ret void
+UnifiedReturnBlock:
+	ret void
+}
+
+define i32 %test4(i16* %P) {
+        %tmp.1 = load i16* %P
+        %tmp.2 = zext i16 %tmp.1 to i32
+        %tmp.3 = and i32 %tmp.2, 255
+        ret i32 %tmp.3
+}
+
+define i32 %test5(i16* %P) {
+        %tmp.1 = load i16* %P
+        %tmp.2 = bitcast i16 %tmp.1 to i16
+        %tmp.3 = zext i16 %tmp.2 to i32
+        %tmp.4 = and i32 %tmp.3, 255
+        ret i32 %tmp.4
+}
+
+define i32 %test6(i32* %P) {
+        %tmp.1 = load i32* %P
+        %tmp.2 = and i32 %tmp.1, 255
+        ret i32 %tmp.2
+}
+
+define i16 %test7(float %a) zext {
+        %tmp.1 = fptoui float %a to i16
+        ret i16 %tmp.1
+}