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| author | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-02-23 18:14:48 +0000 |
|---|---|---|
| committer | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-02-23 18:14:48 +0000 |
| commit | 743d0a1f831f1d5a3141a6ca730558f40c35690a (patch) | |
| tree | d2c1a5eefbfb5fc6922dab4d3dc29b3fb2f42242 /lib/CodeGen/RegAllocLocal.cpp | |
| parent | fbc39d50455f1895117fe9796294942759026540 (diff) | |
| download | llvm-743d0a1f831f1d5a3141a6ca730558f40c35690a.tar.gz llvm-743d0a1f831f1d5a3141a6ca730558f40c35690a.tar.bz2 llvm-743d0a1f831f1d5a3141a6ca730558f40c35690a.tar.xz | |
Refactor rewinding code for finding the first terminator of a basic
block into MachineBasicBlock::getFirstTerminator().
This also fixes a bug in the implementation of the above in both
RegAllocLocal and InstrSched, where instructions where added after the
terminator if the basic block's only instruction was a terminator (it
shouldn't matter for RegAllocLocal since this case never occurs in
practice).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11748 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocLocal.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index 38e0073360..a3d66391cc 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/lib/CodeGen/RegAllocLocal.cpp @@ -649,11 +649,7 @@ void RA::AllocateBasicBlock(MachineBasicBlock &MBB) { } } - // Rewind the iterator to point to the first flow control instruction... - const TargetInstrInfo &TII = TM->getInstrInfo(); - MI = MBB.end(); - while (MI != MBB.begin() && TII.isTerminatorInstr((--MI)->getOpcode())); - if (MI != MBB.end()) ++MI; + MI = MBB.getFirstTerminator(); // Spill all physical registers holding virtual registers now. for (unsigned i = 0, e = RegInfo->getNumRegs(); i != e; ++i) |