Infinite loop in instcombine that nate hit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28960 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/2006-06-28-infloop.ll b/test/Transforms/InstCombine/2006-06-28-infloop.ll
new file mode 100644 (file)
index 0000000..2c48ffb
--- /dev/null
+++ b/test/Transforms/InstCombine/2006-06-28-infloop.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output
+target endian = big
+target pointersize = 32
+target triple = "powerpc-apple-darwin8"
+
+implementation   ; Functions:
+
+void %test() {
+entry:
+       %tmp = getelementptr { long, long, long, long }* null, int 0, uint 3
+       %tmp = load long* %tmp          ; <long> [#uses=1]
+       %tmp8 = load ulong* null                ; <ulong> [#uses=1]
+       %tmp8 = cast ulong %tmp8 to long                ; <long> [#uses=1]
+       %tmp9 = and long %tmp8, %tmp            ; <long> [#uses=1]
+       %sext = cast long %tmp9 to int          ; <int> [#uses=1]
+       %tmp27.i = cast int %sext to long               ; <long> [#uses=1]
+       tail call void %foo( uint 0, long %tmp27.i )
+       unreachable
+}
+
+declare void %foo(uint, long)