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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2016-02-27 19:23:34 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2016-02-27 19:23:34 +0000 |
| commit | bd529fbb4a678b1a07cf769be71b1a8e41d527ec (patch) | |
| tree | 5cd5dabb6c8f6cd1cae2cc1fc87076773fc67369 /llvm/lib/CodeGen | |
| parent | 1f6624ae3496cd544208e405c6d487a47206bde5 (diff) | |
| download | bcm5719-llvm-bd529fbb4a678b1a07cf769be71b1a8e41d527ec.tar.gz bcm5719-llvm-bd529fbb4a678b1a07cf769be71b1a8e41d527ec.zip | |
CodeGen: Assert valid MI in AntiDepBreaker::UpdateDbgValue
This already assumes a valid MI, since it dereferences the MI in an
assertion before checking for null. At an explicit assert.
llvm-svn: 262144
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/AntiDepBreaker.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/AntiDepBreaker.h b/llvm/lib/CodeGen/AntiDepBreaker.h index 9f05200dcdf..2aa77161bcf 100644 --- a/llvm/lib/CodeGen/AntiDepBreaker.h +++ b/llvm/lib/CodeGen/AntiDepBreaker.h @@ -56,8 +56,9 @@ public: /// Update DBG_VALUE if dependency breaker is updating /// other machine instruction to use NewReg. void UpdateDbgValue(MachineInstr *MI, unsigned OldReg, unsigned NewReg) { + assert(MI && "Expected valid instruction"); assert (MI->isDebugValue() && "MI is not DBG_VALUE!"); - if (MI && MI->getOperand(0).isReg() && MI->getOperand(0).getReg() == OldReg) + if (MI->getOperand(0).isReg() && MI->getOperand(0).getReg() == OldReg) MI->getOperand(0).setReg(NewReg); } }; |
