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(parent: 77beb47) | patch
Add TargetInstrInfo::isCoalescableInstr. It returns true if the specified
authorEvan Cheng <evan.cheng@apple.com>
Tue, 12 Jan 2010 00:09:37 +0000 (00:09 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Tue, 12 Jan 2010 00:09:37 +0000 (00:09 +0000)
commita5a81d70720a4ce6ac7538927c2a874b0dfa8bd2
treea97a5454dfbd99f0a45929908becf7cc692b74aftree | snapshot
parent77beb479f556093c5f1b4854fcbb095cda34f202commit | diff
Add TargetInstrInfo::isCoalescableInstr. It returns true if the specified
instruction is copy like where the source and destination registers can
overlap. This is to be used by the coalescable to coalesce the source and
destination registers of instructions like X86::MOVSX64rr32. Apparently
some crazy people believe the coalescer is too simple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93210 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Target/TargetInstrInfo.h diff | blob | history
lib/Target/X86/X86InstrInfo.cpp diff | blob | history
lib/Target/X86/X86InstrInfo.h diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors