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author | Cameron Zwarich <zwarich@apple.com> | 2011-02-27 08:06:01 +0000 |
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committer | Cameron Zwarich <zwarich@apple.com> | 2011-02-27 08:06:01 +0000 |
commit | 68f677a61286154f4d389123498843b2f82e903f (patch) | |
tree | 73e33cab1c8cac338092c8d84661281d9a97d6ff /llvm/test/CodeGen/X86/phi-bit-propagation.ll | |
parent | baeb5f14310f5b4b8bc139b9c3a2a5495ffae4ef (diff) | |
download | bcm5719-llvm-68f677a61286154f4d389123498843b2f82e903f.tar.gz bcm5719-llvm-68f677a61286154f4d389123498843b2f82e903f.zip |
Fix PR9324 / <rdar://problem/9052489> by handling the case where a PHI has no uses.
llvm-svn: 126567
Diffstat (limited to 'llvm/test/CodeGen/X86/phi-bit-propagation.ll')
-rw-r--r-- | llvm/test/CodeGen/X86/phi-bit-propagation.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/phi-bit-propagation.ll b/llvm/test/CodeGen/X86/phi-bit-propagation.ll index da9652f7340..94c97229b09 100644 --- a/llvm/test/CodeGen/X86/phi-bit-propagation.ll +++ b/llvm/test/CodeGen/X86/phi-bit-propagation.ll @@ -33,3 +33,23 @@ return: ; preds = %for.body, %for.cond %retval.0 = phi i1 [ true, %for.body ], [ false, %for.cond ] ret i1 %retval.0 } + +; This test case caused an assertion failure; see PR9324. +define void @func_37() noreturn nounwind ssp { +entry: + br i1 undef, label %lbl_919, label %entry.for.inc_crit_edge + +entry.for.inc_crit_edge: ; preds = %entry + br label %for.inc + +lbl_919: ; preds = %for.cond7.preheader, %entry + br label %for.cond7.preheader + +for.cond7.preheader: ; preds = %for.inc, %lbl_919 + %storemerge.ph = phi i8 [ 0, %lbl_919 ], [ %add, %for.inc ] + br i1 undef, label %for.inc, label %lbl_919 + +for.inc: ; preds = %for.cond7.preheader, %entry.for.inc_crit_edge + %add = add i8 undef, 1 + br label %for.cond7.preheader +} |