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| author | Chad Rosier <mcrosier@apple.com> | 2012-11-26 23:37:07 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@apple.com> | 2012-11-26 23:37:07 +0000 |
| commit | 8d20b5f9ff609e70fae5c865931ab0f29e639d9c (patch) | |
| tree | f64ca23bfc5ec3f573d7904cbbb6c2fbd67d9f68 | |
| parent | 527ba9c88d03b95d7e983dbad4daf5daed0d4885 (diff) | |
Add an assertion to ensure freezeReservedRegs() is only ever called once.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168633 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index 95d7a7dd68..34518fa46b 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -305,6 +305,8 @@ void MachineRegisterInfo::dumpUses(unsigned Reg) const { #endif void MachineRegisterInfo::freezeReservedRegs(const MachineFunction &MF) { + assert (!reservedRegsFrozen() && + "freezeReservedRegs should only be called once!"); ReservedRegs = TRI->getReservedRegs(MF); assert(ReservedRegs.size() == TRI->getNumRegs() && "Invalid ReservedRegs vector from target"); |