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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-11-30 23:53:00 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-11-30 23:53:00 +0000 |
| commit | 3e77747eba2173521d027033952b9a25785c7409 (patch) | |
| tree | a9f7f609821c7ea9933be91c184c9fe1c183344c /lib/CodeGen/AsmPrinter/DwarfDebug.cpp | |
| parent | a3959b6d69893ad6acc18226f4fc38dc377ac739 (diff) | |
Convert COPY instructions into KILLs if they have implicit defs.
MachineCopyPropagation doesn't understand super-register liveness well
enough to be able to remove implicit defs of super-registers.
This fixes a problem in ARM/2012-01-26-CopyPropKills.ll that is exposed
by an future TwoAddressInstructionPass change. The KILL instructions are
removed before the machine code is emitted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169060 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
0 files changed, 0 insertions, 0 deletions