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| 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/RegAllocLocal.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/RegAllocLocal.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index b965dc9f0f..14346e90ed 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/lib/CodeGen/RegAllocLocal.cpp @@ -633,7 +633,7 @@ void RALocal::ComputeLocalLiveness(MachineBasicBlock& MBB) { // Check if this is a two address instruction. If so, then // the def does not kill the use. if (last->second.first == I && - I->isRegReDefinedByTwoAddr(i)) + I->isRegTiedToUseOperand(i)) continue; MachineOperand& lastUD = |