From d3c76bb6fc3c066286850e91b8bf03484ea2a56e Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Thu, 28 May 2009 23:52:18 +0000 Subject: Do not try to create a MVT type of width 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72557 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll | 38 ++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll (limited to 'test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll') diff --git a/test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll b/test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll new file mode 100644 index 0000000..7bdfcb3 --- /dev/null +++ b/test/CodeGen/X86/2009-05-28-DAGCombineCrash.ll @@ -0,0 +1,38 @@ +; RUN: llvm-as < %s | llc -march=x86-64 + + %struct.tempsym_t = type { i8*, i8*, i8*, i8*, i32, i32, i32, i32, i32 } + +define fastcc signext i8 @S_next_symbol(%struct.tempsym_t* %symptr) nounwind ssp { +entry: + br label %bb116 + +bb: ; preds = %bb116 + switch i8 undef, label %bb14 [ + i8 9, label %bb116 + i8 32, label %bb116 + i8 10, label %bb116 + i8 13, label %bb116 + i8 12, label %bb116 + ] + +bb14: ; preds = %bb + br i1 undef, label %bb75, label %bb115 + +bb75: ; preds = %bb14 + %srcval16 = load i448* null, align 8 ; [#uses=1] + %tmp = zext i32 undef to i448 ; [#uses=1] + %tmp15 = shl i448 %tmp, 288 ; [#uses=1] + %mask = and i448 %srcval16, -2135987035423586845985235064014169866455883682256196619149693890381755748887481053010428711403521 ; [#uses=1] + %ins = or i448 %tmp15, %mask ; [#uses=1] + store i448 %ins, i448* null, align 8 + ret i8 1 + +bb115: ; preds = %bb14 + ret i8 1 + +bb116: ; preds = %bb, %bb, %bb, %bb, %bb, %entry + br i1 undef, label %bb, label %bb117 + +bb117: ; preds = %bb116 + ret i8 0 +} -- cgit v1.1