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| author | Evan Cheng <evan.cheng@apple.com> | 2009-02-04 18:18:58 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-02-04 18:18:58 +0000 |
| commit | 9ec370f7489e45947db9449c842b87d773f08ee2 (patch) | |
| tree | aa152642e75bd5c7177dab843494f4adbea9fa8d /llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp | |
| parent | 370ec10dad9fb523e472afeda2fd7d20b3db6a72 (diff) | |
| download | bcm5719-llvm-9ec370f7489e45947db9449c842b87d773f08ee2.tar.gz bcm5719-llvm-9ec370f7489e45947db9449c842b87d773f08ee2.zip | |
Skip over zero registers.
llvm-svn: 63748
Diffstat (limited to 'llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp index f3ffc69cccb..86dca115194 100644 --- a/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -2449,6 +2449,8 @@ bool SimpleRegisterCoalescing::runOnMachineFunction(MachineFunction &fn) { if (!MO.isReg()) continue; unsigned Reg = MO.getReg(); + if (!Reg) + continue; if (TargetRegisterInfo::isVirtualRegister(Reg)) DeadDefs.push_back(Reg); if (MO.isDead()) |
