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| author | Matthias Braun <matze@braunis.de> | 2016-08-18 02:21:54 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-08-18 02:21:54 +0000 |
| commit | c9130ea6a3658901510fcf8194e935b4571842e2 (patch) | |
| tree | e0b392f2ade4f738ed37e5981b00a98df5df6c6f /llvm/test | |
| parent | 68f8cbd597d886f116a773ee0c2f56e26d4135ed (diff) | |
| download | bcm5719-llvm-c9130ea6a3658901510fcf8194e935b4571842e2.tar.gz bcm5719-llvm-c9130ea6a3658901510fcf8194e935b4571842e2.zip | |
Testcase for r279022
llvm-svn: 279031
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/taildup-crash.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/taildup-crash.ll b/llvm/test/CodeGen/X86/taildup-crash.ll new file mode 100644 index 00000000000..aeee114adb5 --- /dev/null +++ b/llvm/test/CodeGen/X86/taildup-crash.ll @@ -0,0 +1,24 @@ +; RUN: llc -o - %s | FileCheck %s +target triple = "x86_64--" + +; Make sure we do not crash in tail duplication when finding no successor of a +; block. +; CHECK-LABEL: func: +; CHECK: testb +; CEHCK: je +; CHECK: retq +; CHECK: jmp +define hidden void @func() { +entry: + br i1 undef, label %for.cond.cleanup, label %while.cond.preheader + +while.cond.preheader: + br label %while.cond + +for.cond.cleanup: + ret void + +while.cond: + %cmp.i202 = icmp eq i8* undef, undef + br i1 %cmp.i202, label %while.cond.preheader, label %while.cond +} |
