From 0403b473dd99b5c7db1fa7048288be6cb42e7abd Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sat, 9 Apr 2011 07:05:44 +0000 Subject: Fix a bug where RecursivelyDeleteTriviallyDeadInstructions could delete the instruction pointed to by CGP's current instruction iterator, leading to a crash on the testcase. This fixes PR9578. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129200 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/Generic/crash.ll | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'test/CodeGen/Generic') diff --git a/test/CodeGen/Generic/crash.ll b/test/CodeGen/Generic/crash.ll index 0427398..e7cc7e3 100644 --- a/test/CodeGen/Generic/crash.ll +++ b/test/CodeGen/Generic/crash.ll @@ -38,3 +38,31 @@ unreachable declare void @Parse_Vector(double*) declare i32 @llvm.objectsize.i32(i8*, i1) + +; PR9578 +%struct.S0 = type { i32, i8, i32 } + +define void @func_82() nounwind optsize { +entry: + br label %for.body.i + +for.body.i: ; preds = %for.body.i, %entry + br i1 undef, label %func_74.exit.for.cond29.thread_crit_edge, label %for.body.i + +func_74.exit.for.cond29.thread_crit_edge: ; preds = %for.body.i + %f13576.pre = getelementptr inbounds %struct.S0* undef, i64 0, i32 1 + store i8 0, i8* %f13576.pre, align 4, !tbaa !0 + br label %lbl_468 + +lbl_468: ; preds = %lbl_468, %func_74.exit.for.cond29.thread_crit_edge + %f13577.ph = phi i8* [ %f13576.pre, %func_74.exit.for.cond29.thread_crit_edge ], [ %f135.pre, %lbl_468 ] + store i8 1, i8* %f13577.ph, align 1 + %f135.pre = getelementptr inbounds %struct.S0* undef, i64 0, i32 1 + br i1 undef, label %lbl_468, label %for.end74 + +for.end74: ; preds = %lbl_468 + ret void +} + +!0 = metadata !{metadata !"omnipotent char", metadata !1} +!1 = metadata !{metadata !"Simple C/C++ TBAA", null} -- cgit v1.1