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| author | Dylan McKay <me@dylanmckay.io> | 2017-10-04 10:33:36 +0000 |
|---|---|---|
| committer | Dylan McKay <me@dylanmckay.io> | 2017-10-04 10:33:36 +0000 |
| commit | d00f9c1ef1124341582680c46afc3b8cfef1749e (patch) | |
| tree | 17ec44c3341f24a694f6a0f3bc493e0e9d553118 /llvm/lib/Target/AVR | |
| parent | 9ad43a1cf1963219acaac88d763b1e3fc2857554 (diff) | |
| download | bcm5719-llvm-d00f9c1ef1124341582680c46afc3b8cfef1749e.tar.gz bcm5719-llvm-d00f9c1ef1124341582680c46afc3b8cfef1749e.zip | |
[AVR] Elaborate LDWRdPtr into `ld r, X++; ld r+1, X`
Patch by Gergo Erdi.
llvm-svn: 314896
Diffstat (limited to 'llvm/lib/Target/AVR')
| -rw-r--r-- | llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp | 8 | ||||
| -rw-r--r-- | llvm/lib/Target/AVR/AVRInstrInfo.td | 6 |
2 files changed, 7 insertions, 7 deletions
diff --git a/llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp b/llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp index 400e9bd8fdc..9969fda3a56 100644 --- a/llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp +++ b/llvm/lib/Target/AVR/AVRExpandPseudoInsts.cpp @@ -583,8 +583,8 @@ bool AVRExpandPseudo::expand<AVR::LDWRdPtr>(Block &MBB, BlockIt MBBI) { unsigned TmpReg = 0; // 0 for no temporary register unsigned SrcReg = MI.getOperand(1).getReg(); bool SrcIsKill = MI.getOperand(1).isKill(); - OpLo = AVR::LDRdPtr; - OpHi = AVR::LDDRdPtrQ; + OpLo = AVR::LDRdPtrPi; + OpHi = AVR::LDRdPtr; TRI->splitReg(DstReg, DstLoReg, DstHiReg); // Use a temporary register if src and dst registers are the same. @@ -597,6 +597,7 @@ bool AVRExpandPseudo::expand<AVR::LDWRdPtr>(Block &MBB, BlockIt MBBI) { // Load low byte. auto MIBLO = buildMI(MBB, MBBI, OpLo) .addReg(CurDstLoReg, RegState::Define) + .addReg(SrcReg, RegState::Define) .addReg(SrcReg); // Push low byte onto stack if necessary. @@ -606,8 +607,7 @@ bool AVRExpandPseudo::expand<AVR::LDWRdPtr>(Block &MBB, BlockIt MBBI) { // Load high byte. auto MIBHI = buildMI(MBB, MBBI, OpHi) .addReg(CurDstHiReg, RegState::Define) - .addReg(SrcReg, getKillRegState(SrcIsKill)) - .addImm(1); + .addReg(SrcReg, getKillRegState(SrcIsKill)); if (TmpReg) { // Move the high byte into the final destination. diff --git a/llvm/lib/Target/AVR/AVRInstrInfo.td b/llvm/lib/Target/AVR/AVRInstrInfo.td index 61a227b7bda..8c7b6f24392 100644 --- a/llvm/lib/Target/AVR/AVRInstrInfo.td +++ b/llvm/lib/Target/AVR/AVRInstrInfo.td @@ -1152,10 +1152,10 @@ isReMaterializable = 1 in // // Expands to: // ld Rd, P+ - // ld Rd+1, P+ + // ld Rd+1, P let Constraints = "@earlyclobber $reg" in def LDWRdPtr : Pseudo<(outs DREGS:$reg), - (ins PTRDISPREGS:$ptrreg), + (ins PTRREGS:$ptrreg), "ldw\t$reg, $ptrreg", [(set i16:$reg, (load i16:$ptrreg))]>, Requires<[HasSRAM]>; @@ -1164,7 +1164,7 @@ isReMaterializable = 1 in // Indirect loads (with postincrement or predecrement). let mayLoad = 1, hasSideEffects = 0, -Constraints = "$ptrreg = $base_wb,@earlyclobber $reg,@earlyclobber $base_wb" in +Constraints = "$ptrreg = $base_wb,@earlyclobber $reg" in { def LDRdPtrPi : FSTLD<0, 0b01, |
