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| author | Andrew Trick <atrick@apple.com> | 2014-01-07 07:31:10 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2014-01-07 07:31:10 +0000 |
| commit | dfacda363549778e07c92fc707298a5317c901ab (patch) | |
| tree | 106755721ca44f42de330ca0039a4d6384f1a4f7 /llvm/lib/CodeGen/InlineSpiller.cpp | |
| parent | e4a18605e0c56750aa999be92a41b88497460949 (diff) | |
| download | bcm5719-llvm-dfacda363549778e07c92fc707298a5317c901ab.tar.gz bcm5719-llvm-dfacda363549778e07c92fc707298a5317c901ab.zip | |
Fix for PR18396: Assertion: MO->isDead "Cannot fold physreg def".
InlineSpiller::foldMemoryOperand needs to handle undef call operands.
llvm-svn: 198679
Diffstat (limited to 'llvm/lib/CodeGen/InlineSpiller.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/InlineSpiller.cpp | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/InlineSpiller.cpp b/llvm/lib/CodeGen/InlineSpiller.cpp index bb0e6423135..70d97c0f55d 100644 --- a/llvm/lib/CodeGen/InlineSpiller.cpp +++ b/llvm/lib/CodeGen/InlineSpiller.cpp @@ -1098,12 +1098,11 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, MRI.isReserved(Reg)) { continue; } + // Skip non-Defs, including undef uses and internal reads. + if (MO->isUse()) + continue; MIBundleOperands::PhysRegInfo RI = MIBundleOperands(FoldMI).analyzePhysReg(Reg, &TRI); - if (MO->readsReg()) { - assert(RI.Reads && "Cannot fold physreg reader"); - continue; - } if (RI.Defines) continue; // FoldMI does not define this physreg. Remove the LI segment. |
