Be sure to destroy the normal entry block of a cleanup that we
aren't actually going to make a normal cleanup for. Sometimes
we optimistically create branches to such blocks for fixups,
and then we resolve the fixup to somewhere within the cleanup's
scope, and then the cleanup is actually not reachable for some
reason. The process of resolving the fixup leaves us with
switches whose default edge leads to the cleanup; we can
replace that with unreachable, then (in many cases) turn
the switch into an unconditional branch.
Fixes PR10467.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137011 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/destructors.cpp b/test/CodeGenCXX/destructors.cpp
index 3381985..bfdf93c 100644
--- a/test/CodeGenCXX/destructors.cpp
+++ b/test/CodeGenCXX/destructors.cpp
@@ -323,7 +323,32 @@
// CHECK: invoke void @_ZN5test71DD1Ev(
// CHECK: call void @_ZN5test71AD2Ev(
B::~B() {}
+}
+// PR10467
+namespace test8 {
+ struct A { A(); ~A(); };
+
+ void die() __attribute__((noreturn));
+ void test() {
+ A x;
+ while (1) {
+ A y;
+ goto l;
+ }
+ l: die();
+ }
+
+ // CHECK: define void @_ZN5test84testEv()
+ // CHECK: [[X:%.*]] = alloca [[A:%.*]], align 1
+ // CHECK-NEXT: [[Y:%.*]] = alloca [[A:%.*]], align 1
+ // CHECK: call void @_ZN5test81AC1Ev([[A]]* [[X]])
+ // CHECK-NEXT: br label
+ // CHECK: invoke void @_ZN5test81AC1Ev([[A]]* [[Y]])
+ // CHECK: invoke void @_ZN5test81AD1Ev([[A]]* [[Y]])
+ // CHECK-NOT: switch
+ // CHECK: invoke void @_ZN5test83dieEv()
+ // CHECK: unreachable
}
// Checks from test3: