Vendor import of llvm trunk r154661:

http://llvm.org/svn/llvm-project/llvm/trunk@r154661

1 files changed, 70 insertions, 0 deletions

diff --git a/test/Transforms/LoopStrengthReduce/dominate-assert.ll b/test/Transforms/LoopStrengthReduce/dominate-assert.ll
new file mode 100644
index 0000000..b87bf62
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/dominate-assert.ll
@@ -0,0 +1,70 @@
+; RUN: opt -loop-reduce %s
+; we used to crash on this one
+
+declare i8* @_Znwm()
+declare i32 @__gxx_personality_v0(...)
+declare void @g()
+define void @f() {
+bb0:
+  br label %bb1
+bb1:
+  %v0 = phi i64 [ 0, %bb0 ], [ %v1, %bb1 ]
+  %v1 = add nsw i64 %v0, 1
+  br i1 undef, label %bb2, label %bb1
+bb2:
+  %v2 = icmp eq i64 %v0, 0
+  br i1 %v2, label %bb6, label %bb3
+bb3:
+  %v3 = invoke noalias i8* @_Znwm()
+          to label %bb5 unwind label %bb4
+bb4:
+  %v4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  br label %bb9
+bb5:
+  %v5 = bitcast i8* %v3 to i32**
+  %add.ptr.i = getelementptr inbounds i32** %v5, i64 %v0
+  br label %bb6
+bb6:
+  %v6 = phi i32** [ null, %bb2 ], [ %add.ptr.i, %bb5 ]
+  invoke void @g()
+          to label %bb7 unwind label %bb8
+bb7:
+  unreachable
+bb8:
+  %v7 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  br label %bb9
+bb9:
+  resume { i8*, i32 } zeroinitializer
+}
+
+
+define void @h() {
+bb1:
+  invoke void @g() optsize
+          to label %bb2 unwind label %bb5
+bb2:
+  %arrayctor.cur = phi i8* [ undef, %bb1 ], [ %arrayctor.next, %bb3 ]
+  invoke void @g() optsize
+          to label %bb3 unwind label %bb6
+bb3:
+  %arrayctor.next = getelementptr inbounds i8* %arrayctor.cur, i64 1
+  br label %bb2
+bb4:
+  ret void
+bb5:
+  %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  invoke void @g() optsize
+          to label %bb4 unwind label %bb7
+bb6:
+  %tmp1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  %arraydestroy.isempty = icmp eq i8* undef, %arrayctor.cur
+  ret void
+bb7:
+  %lpad.nonloopexit = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          catch i8* null
+  ret void
+}