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| author | Evan Cheng <evan.cheng@apple.com> | 2010-09-10 01:29:16 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-09-10 01:29:16 +0000 |
| commit | 3ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1 (patch) | |
| tree | ffcb01b1621bcedb427d701cfaee9ea9a19b0a2c /lib/CodeGen/ScheduleDAGInstrs.h | |
| parent | 920a2089d9b737820631bc6de4c4fb9fa9ad1e07 (diff) | |
| download | external_llvm-3ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1.zip external_llvm-3ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1.tar.gz external_llvm-3ef1c8759a20167457eb7fd82ebcaffe7ccaa1d1.tar.bz2 | |
Teach if-converter to be more careful with predicating instructions that would
take multiple cycles to decode.
For the current if-converter clients (actually only ARM), the instructions that
are predicated on false are not nops. They would still take machine cycles to
decode. Micro-coded instructions such as LDM / STM can potentially take multiple
cycles to decode. If-converter should take treat them as non-micro-coded
simple instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113570 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ScheduleDAGInstrs.h')
| -rw-r--r-- | lib/CodeGen/ScheduleDAGInstrs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/CodeGen/ScheduleDAGInstrs.h b/lib/CodeGen/ScheduleDAGInstrs.h index c8f543f..bc07d9e 100644 --- a/lib/CodeGen/ScheduleDAGInstrs.h +++ b/lib/CodeGen/ScheduleDAGInstrs.h @@ -101,6 +101,7 @@ namespace llvm { const MachineLoopInfo &MLI; const MachineDominatorTree &MDT; const MachineFrameInfo *MFI; + const InstrItineraryData *InstrItins; /// Defs, Uses - Remember where defs and uses of each physical register /// are as we iterate upward through the instructions. This is allocated |