diff options
| author | Bob Wilson <bob.wilson@apple.com> | 2009-04-09 17:16:43 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2009-04-09 17:16:43 +0000 |
| commit | d9df5017040489303acb57bdd8697ef0f8bafc08 (patch) | |
| tree | 894d9bc70b3f7019ebfc3c0950f9133059a50638 /lib/CodeGen/LiveIntervalAnalysis.cpp | |
| parent | 37831d0a1202ab105b495762cb6cce7b6eb2438c (diff) | |
Fix pr3954. The register scavenger asserts for inline assembly with
register destinations that are tied to source operands. The
TargetInstrDescr::findTiedToSrcOperand method silently fails for inline
assembly. The existing MachineInstr::isRegReDefinedByTwoAddr was very
close to doing what is needed, so this revision makes a few changes to
that method and also renames it to isRegTiedToUseOperand (for consistency
with the very similar isRegTiedToDefOperand and because it handles both
two-address instructions and inline assembly with tied registers).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | lib/CodeGen/LiveIntervalAnalysis.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp index cb08fe759f..3bc05a9b9a 100644 --- a/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -469,7 +469,7 @@ void LiveIntervals::handleVirtualRegisterDef(MachineBasicBlock *mbb, // must be due to phi elimination or two addr elimination. If this is // the result of two address elimination, then the vreg is one of the // def-and-use register operand. - if (mi->isRegReDefinedByTwoAddr(MOIdx)) { + if (mi->isRegTiedToUseOperand(MOIdx)) { // If this is a two-address definition, then we have already processed // the live range. The only problem is that we didn't realize there // are actually two values in the live interval. Because of this we |