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| author | Than McIntosh <thanm@google.com> | 2018-05-18 17:47:10 +0000 |
|---|---|---|
| committer | Than McIntosh <thanm@google.com> | 2018-05-18 17:47:10 +0000 |
| commit | 3c639dbd0d1c8b291e0138b0c93f19195afb6044 (patch) | |
| tree | d84dccd78e5c0178db90e075d26b472344e6802a /llvm/lib/CodeGen/StackColoring.cpp | |
| parent | 588fad4d3be4391df52505fd5e1fa36a44a8632e (diff) | |
| download | bcm5719-llvm-3c639dbd0d1c8b291e0138b0c93f19195afb6044.tar.gz bcm5719-llvm-3c639dbd0d1c8b291e0138b0c93f19195afb6044.zip | |
Revert changes from D46265.
This is a revert of the changes from https://reviews.llvm.org/D46265;
the new test introduced (test/CodeGen/X86/PR37310.mir) causes buildbot
failures.
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D47061
llvm-svn: 332742
Diffstat (limited to 'llvm/lib/CodeGen/StackColoring.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/StackColoring.cpp | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/llvm/lib/CodeGen/StackColoring.cpp b/llvm/lib/CodeGen/StackColoring.cpp index 0bd941e64aa..4f3d1f704aa 100644 --- a/llvm/lib/CodeGen/StackColoring.cpp +++ b/llvm/lib/CodeGen/StackColoring.cpp @@ -782,11 +782,8 @@ void StackColoring::calculateLocalLiveness() { for (MachineBasicBlock::const_pred_iterator PI = BB->pred_begin(), PE = BB->pred_end(); PI != PE; ++PI) { LivenessMap::const_iterator I = BlockLiveness.find(*PI); - // PR37130: transformations prior to stack coloring can - // sometimes leave behind statically unreachable blocks; these - // can be safely skipped here. - if (I != BlockLiveness.end()) - LocalLiveIn |= I->second.LiveOut; + assert(I != BlockLiveness.end() && "Predecessor not found"); + LocalLiveIn |= I->second.LiveOut; } // Compute LiveOut by subtracting out lifetimes that end in this |
