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author | Owen Anderson <resistor@mac.com> | 2008-07-30 00:22:56 +0000 |
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committer | Owen Anderson <resistor@mac.com> | 2008-07-30 00:22:56 +0000 |
commit | 9382b9310f008a3347e565d76aadda6a97351de9 (patch) | |
tree | 83a0643362ecb5d75db1a8cae54687634b9d3759 /lib/CodeGen | |
parent | b9fb8d1e69aa910eb6bb03d3d66e5a2e25a20cd8 (diff) | |
download | external_llvm-9382b9310f008a3347e565d76aadda6a97351de9.zip external_llvm-9382b9310f008a3347e565d76aadda6a97351de9.tar.gz external_llvm-9382b9310f008a3347e565d76aadda6a97351de9.tar.bz2 |
More fixes for corner cases when remapping live range indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54186 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index 02c1191..b557b70 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -156,14 +156,13 @@ void LiveIntervals::computeNumbering() { // following instruction. index = (LI->end - 1) / InstrSlots::NUM; offset = LI->end % InstrSlots::NUM; - if (offset == InstrSlots::USE) { + if (offset == InstrSlots::LOAD) { + // VReg dies at end of block. std::vector<IdxMBBPair>::const_iterator I = std::lower_bound(OldI2MBB.begin(), OldI2MBB.end(), LI->end); - // Take the pair containing the index - std::vector<IdxMBBPair>::const_iterator J = - (I == OldI2MBB.end() && OldI2MBB.size()>0) ? (I-1): I; + --I; - LI->end = getMBBEndIdx(J->second) + 1; + LI->end = getMBBEndIdx(I->second) + 1; } else { unsigned idx = index; while (index < OldI2MI.size() && !OldI2MI[index]) ++index; @@ -195,16 +194,17 @@ void LiveIntervals::computeNumbering() { // Remap the VNInfo kill indices, which works the same as // the end indices above. for (size_t i = 0; i < vni->kills.size(); ++i) { + // PHI kills don't need to be remapped. + if (!vni->kills[i]) continue; + index = (vni->kills[i]-1) / InstrSlots::NUM; offset = vni->kills[i] % InstrSlots::NUM; - if (offset == InstrSlots::USE) { + if (offset == InstrSlots::LOAD) { std::vector<IdxMBBPair>::const_iterator I = std::lower_bound(OldI2MBB.begin(), OldI2MBB.end(), vni->kills[i]); - // Take the pair containing the index - std::vector<IdxMBBPair>::const_iterator J = - (I == OldI2MBB.end() && OldI2MBB.size()>0) ? (I-1): I; + --I; - vni->kills[i] = getMBBEndIdx(J->second) + 1; + vni->kills[i] = getMBBEndIdx(I->second) + 1; } else { unsigned idx = index; while (!OldI2MI[index]) ++index; |