Fix a nasty bug (PR3550) where the inline pass could incorrectly mark
calls with the tail marker when inlining them through an invoke. Patch,
testcase, and perfect analysis by Jay Foad!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64364 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/Inline/inline-invoke-tail.ll b/test/Transforms/Inline/inline-invoke-tail.ll
new file mode 100644
index 0000000..53f755e
--- /dev/null
+++ b/test/Transforms/Inline/inline-invoke-tail.ll
@@ -0,0 +1,35 @@
+; RUN: llvm-as < %s | opt -inline | llvm-dis | not grep {tail call void @llvm.memcpy.i32}
+; PR3550
+
+define internal void @foo(i32* %p, i32* %q) {
+ %pp = bitcast i32* %p to i8*
+ %qq = bitcast i32* %q to i8*
+ tail call void @llvm.memcpy.i32(i8* %pp, i8* %qq, i32 4, i32 1)
+ ret void
+}
+
+declare void @llvm.memcpy.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind
+
+define i32 @main() {
+ %a = alloca i32 ; <i32*> [#uses=3]
+ %b = alloca i32 ; <i32*> [#uses=2]
+ store i32 1, i32* %a, align 4
+ store i32 0, i32* %b, align 4
+ invoke void @foo(i32* %a, i32* %b)
+ to label %invcont unwind label %lpad
+
+invcont:
+ %retval = load i32* %a, align 4
+ ret i32 %retval
+
+lpad:
+ %eh_ptr = call i8* @llvm.eh.exception()
+ %eh_select = call i32 (i8*, i8*, ...)* @llvm.eh.selector.i32(i8* %eh_ptr, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* null)
+ unreachable
+}
+
+declare i8* @llvm.eh.exception() nounwind
+
+declare i32 @llvm.eh.selector.i32(i8*, i8*, ...) nounwind
+
+declare i32 @__gxx_personality_v0(...)