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| author | Evan Cheng <evan.cheng@apple.com> | 2011-03-18 21:52:42 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-03-18 21:52:42 +0000 |
| commit | 3f30af3f4563fc6987d123a024f05b3e7769d9a1 (patch) | |
| tree | 97895fd0cd41b72ee9e50c9fa8b81716d23c74e9 /lib | |
| parent | 1744e476ec3df0350a1163bf2c6439ea21aefbba (diff) | |
| download | external_llvm-3f30af3f4563fc6987d123a024f05b3e7769d9a1.tar.gz external_llvm-3f30af3f4563fc6987d123a024f05b3e7769d9a1.tar.bz2 external_llvm-3f30af3f4563fc6987d123a024f05b3e7769d9a1.zip | |
Match a few more obvious patterns to revsh. rdar://9147637.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127913 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 10 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMInstrThumb2.td | 8 |
2 files changed, 16 insertions, 2 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 0ac07bc748..e90f5ca846 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -2976,10 +2976,18 @@ def REVSH : AMiscA1I<0b01101111, 0b1011, (outs GPR:$Rd), (ins GPR:$Rm), IIC_iUNAr, "revsh", "\t$Rd, $Rm", [(set GPR:$Rd, (sext_inreg - (or (srl (and GPR:$Rm, 0xFF00), (i32 8)), + (or (srl GPR:$Rm, (i32 8)), (shl GPR:$Rm, (i32 8))), i16))]>, Requires<[IsARM, HasV6]>; +def : ARMV6Pat<(sext_inreg (or (srl (and GPR:$Rm, 0xFF00), (i32 8)), + (shl GPR:$Rm, (i32 8))), i16), + (REVSH GPR:$Rm)>; + +// Need the AddedComplexity or else MOVs + REV would be chosen. +let AddedComplexity = 5 in +def : ARMV6Pat<(sra (bswap GPR:$Rm), (i32 16)), (REVSH GPR:$Rm)>; + def lsl_shift_imm : SDNodeXForm<imm, [{ unsigned Sh = ARM_AM::getSORegOpc(ARM_AM::lsl, N->getZExtValue()); return CurDAG->getTargetConstant(Sh, MVT::i32); diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td index ca88175dfa..c9e445925d 100644 --- a/lib/Target/ARM/ARMInstrThumb2.td +++ b/lib/Target/ARM/ARMInstrThumb2.td @@ -2579,9 +2579,15 @@ def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr, "revsh", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (sext_inreg - (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)), + (or (srl rGPR:$Rm, (i32 8)), (shl rGPR:$Rm, (i32 8))), i16))]>; +def : T2Pat<(sext_inreg (or (srl (and rGPR:$Rm, 0xFF00), (i32 8)), + (shl rGPR:$Rm, (i32 8))), i16), + (t2REVSH rGPR:$Rm)>; + +def : T2Pat<(sra (bswap rGPR:$Rm), (i32 16)), (t2REVSH rGPR:$Rm)>; + def t2PKHBT : T2ThreeReg< (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, shift_imm:$sh), IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm$sh", |