Add testcase for r132290, to check for the crasher caught by the buildbots

doing llvm-gcc selfhost (or cross).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132292 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/GlobalOpt/memset-null.ll b/test/Transforms/GlobalOpt/memset-null.ll
index 7a24a2a22bef73f93173546bf78758b0dce644b9..01534025faa38377ce17de959c504341a48332b8 100644 (file)
--- a/test/Transforms/GlobalOpt/memset-null.ll
+++ b/test/Transforms/GlobalOpt/memset-null.ll
@@ -1,13 +1,12 @@
 ; RUN: opt -globalopt %s -S -o - | FileCheck %s
 ; PR10047
 
-
 %0 = type { i32, void ()* }
 %struct.A = type { [100 x i32] }
 
 ; CHECK: @a
 @a = global %struct.A zeroinitializer, align 4
-@llvm.global_ctors = appending global [1 x %0] [%0 { i32 65535, void ()* @_GLOBAL__I_a }]
+@llvm.global_ctors = appending global [2 x %0] [%0 { i32 65535, void ()* @_GLOBAL__I_a }, %0 { i32 65535, void ()* @_GLOBAL__I_b }]
 
 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
 
@@ -17,3 +16,14 @@ entry:
   tail call void @llvm.memset.p0i8.i64(i8* bitcast (%struct.A* @a to i8*), i8 0, i64 400, i32 4, i1 false) nounwind
   ret void
 }
+
+%struct.X = type { i8 }
+@y = global i8* null, align 8
+@x = global %struct.X zeroinitializer, align 1
+
+define internal void @_GLOBAL__I_b() nounwind {
+entry:
+  %tmp.i.i.i = load i8** @y, align 8
+  tail call void @llvm.memset.p0i8.i64(i8* %tmp.i.i.i, i8 0, i64 10, i32 1, i1 false) nounwind
+  ret void
+}