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| author | Hal Finkel <hfinkel@anl.gov> | 2013-04-05 23:29:01 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-04-05 23:29:01 +0000 |
| commit | ff56d1a2011f239e114267c13302ea26db4f8046 (patch) | |
| tree | 62f5494a854361bfdd2397eda50653cdbb0b6257 /lib/Target/PowerPC/PPCISelLowering.h | |
| parent | de80951ae9bb86ab6b4183f0d482d426c02ab708 (diff) | |
| download | llvm-ff56d1a2011f239e114267c13302ea26db4f8046.tar.gz llvm-ff56d1a2011f239e114267c13302ea26db4f8046.tar.bz2 llvm-ff56d1a2011f239e114267c13302ea26db4f8046.tar.xz | |
Enable early if conversion on PPC
On cores for which we know the misprediction penalty, and we have
the isel instruction, we can profitably perform early if conversion.
This enables us to replace some small branch sequences with selects
and avoid the potential stalls from mispredicting the branches.
Enabling this feature required implementing canInsertSelect and
insertSelect in PPCInstrInfo; isel code in PPCISelLowering was
refactored to use these functions as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178926 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCISelLowering.h')
| -rw-r--r-- | lib/Target/PowerPC/PPCISelLowering.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h index 7157b70d86..423e983980 100644 --- a/lib/Target/PowerPC/PPCISelLowering.h +++ b/lib/Target/PowerPC/PPCISelLowering.h @@ -16,6 +16,7 @@ #define LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H #include "PPC.h" +#include "PPCInstrInfo.h" #include "PPCRegisterInfo.h" #include "PPCSubtarget.h" #include "llvm/CodeGen/SelectionDAG.h" @@ -327,6 +328,7 @@ namespace llvm { class PPCTargetLowering : public TargetLowering { const PPCSubtarget &PPCSubTarget; const PPCRegisterInfo *PPCRegInfo; + const PPCInstrInfo *PPCII; public: explicit PPCTargetLowering(PPCTargetMachine &TM); |