Lower signatures exposing struct registers to byval struct pointers

test/Transforms/NaCl/simplify-struct-reg-resume-crash.ll

Index: test/Transforms/NaCl/simplify-struct-reg-resume-crash.ll
diff --git a/test/Transforms/NaCl/simplify-struct-reg-resume-crash.ll b/test/Transforms/NaCl/simplify-struct-reg-resume-crash.ll
new file mode 100644
index 0000000000000000000000000000000000000000..e78b3783c26d5eb424a192b43dd46ff341c9cbb5
--- /dev/null
+++ b/test/Transforms/NaCl/simplify-struct-reg-resume-crash.ll
@@ -0,0 +1,21 @@
+; RUN: not opt < %s -simplify-struct-reg-signatures -S
+; REQUIRES: asserts

[JF, 2015/03/20 16:41:32]

Same.

[Mircea Trofin, 2015/03/20 18:31:32]

Done.

+
+%struct = type { i8*, void(%struct)* }
+
+declare i32 @__gxx_personality_v0(...)
+declare void @something_to_invoke()
+
+; landingpad with struct
+define void @landingpad_is_struct(%struct %str) {
+  invoke void @something_to_invoke()
+    to label %OK unwind label %Err
+
+OK:
+  ret void
+
+Err:
+  %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
+    cleanup
+  resume %struct %str
+}