Add some simple insertvalue simplifications, for the purpose of cleaning
up do-nothing exception handling code produced by dragonegg.
llvm-svn: 139113
diff --git a/llvm/test/Transforms/InstSimplify/2011-09-05-InsertExtractValue.ll b/llvm/test/Transforms/InstSimplify/2011-09-05-InsertExtractValue.ll
new file mode 100644
index 0000000..4067d5d
--- /dev/null
+++ b/llvm/test/Transforms/InstSimplify/2011-09-05-InsertExtractValue.ll
@@ -0,0 +1,22 @@
+; RUN: opt < %s -instsimplify -S | FileCheck %s
+
+; CHECK-NOT: extractvalue
+; CHECK-NOT: insertvalue
+
+declare void @bar()
+
+define void @foo() {
+entry:
+ invoke void @bar() to label %cont unwind label %lpad
+cont:
+ ret void
+lpad:
+ %ex = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0 cleanup
+ %exc_ptr = extractvalue { i8*, i32 } %ex, 0
+ %filter = extractvalue { i8*, i32 } %ex, 1
+ %exc_ptr2 = insertvalue { i8*, i32 } undef, i8* %exc_ptr, 0
+ %filter2 = insertvalue { i8*, i32 } %exc_ptr2, i32 %filter, 1
+ resume { i8*, i32 } %filter2
+}
+
+declare i32 @__gxx_personality_v0(i32, i64, i8*, i8*)