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| author | Anton Korobeynikov <asl@math.spbu.ru> | 2009-11-08 15:32:28 +0000 |
|---|---|---|
| committer | Anton Korobeynikov <asl@math.spbu.ru> | 2009-11-08 15:32:28 +0000 |
| commit | ff2c186d59d987d0331bb8c35852e62f336a1b28 (patch) | |
| tree | 4d230de23b4fc4435075135d657976b124396a67 /lib/Target | |
| parent | 764cfaabd2cf95385a64cc67440d9d7b3cd79028 (diff) | |
| download | external_llvm-ff2c186d59d987d0331bb8c35852e62f336a1b28.zip external_llvm-ff2c186d59d987d0331bb8c35852e62f336a1b28.tar.gz external_llvm-ff2c186d59d987d0331bb8c35852e62f336a1b28.tar.bz2 | |
Some nice peephole patterns. Based on patch by Brian Lucas!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86469 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/MSP430/MSP430InstrInfo.td | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/MSP430/MSP430InstrInfo.td b/lib/Target/MSP430/MSP430InstrInfo.td index 8f3e8b0..2365c59 100644 --- a/lib/Target/MSP430/MSP430InstrInfo.td +++ b/lib/Target/MSP430/MSP430InstrInfo.td @@ -690,6 +690,10 @@ def SEXT16r : Pseudo<(outs GR16:$dst), (ins GR16:$src), } // Defs = [SRW] +def ZEXT16r : Pseudo<(outs GR16:$dst), (ins GR16:$src), + "mov.b\t{$src, $dst}", + [(set GR16:$dst, (zext (trunc GR16:$src)))]>; + def SWPB16r : Pseudo<(outs GR16:$dst), (ins GR16:$src), "swpb\t$dst", [(set GR16:$dst, (bswap GR16:$src))]>; @@ -899,3 +903,6 @@ def : Pat<(store (subc (load addr:$dst), GR8:$src), addr:$dst), (SUB8mr addr:$dst, GR8:$src)>; def : Pat<(store (subc (load addr:$dst), (i8 (load addr:$src))), addr:$dst), (SUB8mm addr:$dst, addr:$src)>; + +// peephole patterns +def : Pat<(and GR16:$src, 255), (ZEXT16r GR16:$src)>; |