vendor/llvm/llvm-r130700

1 files changed, 31 insertions, 0 deletions

diff --git a/test/Transforms/JumpThreading/2011-04-14-InfLoop.ll b/test/Transforms/JumpThreading/2011-04-14-InfLoop.ll
new file mode 100644
index 000000000000..46aaa00380e3
--- /dev/null
+++ b/test/Transforms/JumpThreading/2011-04-14-InfLoop.ll
@@ -0,0 +1,31 @@
+; RUN: opt -jump-threading < %s
+; <rdar://problem/9284786>
+
+%0 = type <{ i64, i16, i64, i8, i8 }>
+
+@g_338 = external global %0, align 8
+
+define void @func_1() nounwind ssp {
+entry:
+  ret void
+
+for.cond1177:
+  %inc1187 = add nsw i32 0, 1
+  %cmp1179 = icmp slt i32 %inc1187, 5
+  br i1 %cmp1179, label %for.cond1177, label %land.rhs1320
+
+land.rhs1320:
+  %tmp1324 = volatile load i64* getelementptr inbounds (%0* @g_338, i64 0, i32 2), align 1, !tbaa !0
+  br label %if.end.i
+
+if.end.i:
+  %tobool.pr.i = phi i1 [ false, %if.end.i ], [ false, %land.rhs1320 ]
+  br i1 %tobool.pr.i, label %return, label %if.end.i
+
+return:
+  ret void
+}
+
+!0 = metadata !{metadata !"long long", metadata !1}
+!1 = metadata !{metadata !"omnipotent char", metadata !2}
+!2 = metadata !{metadata !"Simple C/C++ TBAA", null}