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| author | Nuno Lopes <nunoplopes@sapo.pt> | 2012-06-21 23:52:14 +0000 |
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| committer | Nuno Lopes <nunoplopes@sapo.pt> | 2012-06-21 23:52:14 +0000 |
| commit | f1fb6c836940d1b92c0e3df27f4c9ca6569ff968 (patch) | |
| tree | 2de20a8abffeb2ef17a3aeeb7617b488f82fc91b /test | |
| parent | 55eda324c4c5591e00306bfaa701b049a74e569e (diff) | |
| download | llvm-f1fb6c836940d1b92c0e3df27f4c9ca6569ff968.tar.gz llvm-f1fb6c836940d1b92c0e3df27f4c9ca6569ff968.tar.bz2 llvm-f1fb6c836940d1b92c0e3df27f4c9ca6569ff968.tar.xz | |
instcombine: disable optimization of 'invoke null/undef'. I'll move this functionality to SimplifyCFG (since we cannot make changes to the CFG here).
Fixes the crashes with the attached test case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158951 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstCombine/invoke.ll | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/invoke.ll b/test/Transforms/InstCombine/invoke.ll new file mode 100644 index 0000000000..ea3564dae0 --- /dev/null +++ b/test/Transforms/InstCombine/invoke.ll @@ -0,0 +1,47 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" + +declare i32 @__gxx_personality_v0(...) +declare void @__cxa_call_unexpected(i8*) +declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly + + +; CHECK: @f1 +define i64 @f1() nounwind uwtable ssp { +entry: +; CHECK: nvoke noalias i8* undef() + %call = invoke noalias i8* undef() + to label %invoke.cont unwind label %lpad + +invoke.cont: +; CHECK: ret i64 0 + %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) + ret i64 %0 + +lpad: + %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + filter [0 x i8*] zeroinitializer + %2 = extractvalue { i8*, i32 } %1, 0 + tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind + unreachable +} + +; CHECK: @f2 +define i64 @f2() nounwind uwtable ssp { +entry: +; CHECK: nvoke noalias i8* null() + %call = invoke noalias i8* null() + to label %invoke.cont unwind label %lpad + +invoke.cont: +; CHECK: ret i64 0 + %0 = tail call i64 @llvm.objectsize.i64(i8* %call, i1 false) + ret i64 %0 + +lpad: + %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) + filter [0 x i8*] zeroinitializer + %2 = extractvalue { i8*, i32 } %1, 0 + tail call void @__cxa_call_unexpected(i8* %2) noreturn nounwind + unreachable +} |