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| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2018-06-21 13:38:43 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2018-06-21 13:38:43 +0000 |
| commit | 6a3229301f7fb38d57554438d0186bfab0a737c1 (patch) | |
| tree | 40d3f46507bd60ffec1d17e667153039a44e2287 /llvm/lib/CodeGen | |
| parent | 15745ba5c119f8f53363205ccd6f38c5171e0d5c (diff) | |
| download | bcm5719-llvm-6a3229301f7fb38d57554438d0186bfab0a737c1.tar.gz bcm5719-llvm-6a3229301f7fb38d57554438d0186bfab0a737c1.zip | |
[CodeGen] Avoid handling DBG_VALUE in LiveRegUnits::stepBackward
Patch by Jesper Antonsson.
Differential Revision: https://reviews.llvm.org/D48420
llvm-svn: 335233
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/LiveRegUnits.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/LiveRegUnits.cpp b/llvm/lib/CodeGen/LiveRegUnits.cpp index 9f28db6287b..c2268138549 100644 --- a/llvm/lib/CodeGen/LiveRegUnits.cpp +++ b/llvm/lib/CodeGen/LiveRegUnits.cpp @@ -46,7 +46,7 @@ void LiveRegUnits::stepBackward(const MachineInstr &MI) { // Remove defined registers and regmask kills from the set. for (ConstMIBundleOperands O(MI); O.isValid(); ++O) { if (O->isReg()) { - if (!O->isDef()) + if (!O->isDef() || O->isDebug()) continue; unsigned Reg = O->getReg(); if (!TargetRegisterInfo::isPhysicalRegister(Reg)) @@ -58,7 +58,7 @@ void LiveRegUnits::stepBackward(const MachineInstr &MI) { // Add uses to the set. for (ConstMIBundleOperands O(MI); O.isValid(); ++O) { - if (!O->isReg() || !O->readsReg()) + if (!O->isReg() || !O->readsReg() || O->isDebug()) continue; unsigned Reg = O->getReg(); if (!TargetRegisterInfo::isPhysicalRegister(Reg)) |
