diff options
| author | Misha Brukman <brukman+llvm@gmail.com> | 2002-12-04 19:24:45 +0000 |
|---|---|---|
| committer | Misha Brukman <brukman+llvm@gmail.com> | 2002-12-04 19:24:45 +0000 |
| commit | 06f8aecc882b90d23206233fe95b2df6078f987c (patch) | |
| tree | 0f56cfc74ccd4c8f743861df6e02bff686b101a6 /lib/CodeGen/RegAllocSimple.cpp | |
| parent | 0d2cf3a533572ee2f4a08f997499d18e41a37176 (diff) | |
Fun arithmetic with iterators aimed at fixing a bug: inserting instructions
after the *current* instruction while keeping the iterator in the same
'logical' place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4923 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocSimple.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocSimple.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocSimple.cpp b/lib/CodeGen/RegAllocSimple.cpp index 0daab42c3e..596ade5fac 100644 --- a/lib/CodeGen/RegAllocSimple.cpp +++ b/lib/CodeGen/RegAllocSimple.cpp @@ -29,7 +29,8 @@ namespace { unsigned NumBytesAllocated, ByteAlignment; // Maps SSA Regs => offsets on the stack where these values are stored - std::map<unsigned, unsigned> RegMap; // FIXME: change name to VirtReg2OffsetMap + // FIXME: change name to VirtReg2OffsetMap + std::map<unsigned, unsigned> RegMap; // Maps SSA Regs => physical regs std::map<unsigned, unsigned> SSA2PhysRegMap; @@ -235,7 +236,8 @@ bool RegAllocSimple::runOnMachineFunction(MachineFunction &Fn) { if (op.opIsDef()) { physReg = getFreeReg(virtualReg); MachineBasicBlock::iterator J = I; - I = saveVirtRegToStack(J, virtualReg, physReg); + J = saveVirtRegToStack(++J, virtualReg, physReg); + I = --J; } else { I = moveUseToReg(I, virtualReg, physReg); } |