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| author | Owen Anderson <resistor@mac.com> | 2011-08-08 20:42:17 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2011-08-08 20:42:17 +0000 |
| commit | 6d74631062e4464326eb5c680a4d62d340fa42eb (patch) | |
| tree | 277be81c9b1be1fe1bf8b5add9e35991c81c544e /lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp | |
| parent | 2cb1dfa4464c8dc551d93e0ce34d7a2f797304db (diff) | |
| download | external_llvm-6d74631062e4464326eb5c680a4d62d340fa42eb.zip external_llvm-6d74631062e4464326eb5c680a4d62d340fa42eb.tar.gz external_llvm-6d74631062e4464326eb5c680a4d62d340fa42eb.tar.bz2 | |
Fix encodings for Thumb ASR and LSR immediate operands. They encode the range 1-32, with 32 encoded as 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137062 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp')
| -rw-r--r-- | lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp index 2caf548..e047fb8 100644 --- a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp +++ b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp @@ -294,6 +294,9 @@ public: unsigned getShiftRight64Imm(const MCInst &MI, unsigned Op, SmallVectorImpl<MCFixup> &Fixups) const; + unsigned getThumbSRImmOpValue(const MCInst &MI, unsigned Op, + SmallVectorImpl<MCFixup> &Fixups) const; + unsigned NEONThumb2DataIPostEncoder(const MCInst &MI, unsigned EncodedValue) const; unsigned NEONThumb2LoadStorePostEncoder(const MCInst &MI, @@ -440,6 +443,16 @@ EncodeAddrModeOpValues(const MCInst &MI, unsigned OpIdx, unsigned &Reg, return isAdd; } +uint32_t ARMMCCodeEmitter:: +getThumbSRImmOpValue(const MCInst &MI, unsigned OpIdx, + SmallVectorImpl<MCFixup> &Fixups) const { + const MCOperand &MO = MI.getOperand(OpIdx); + assert(MO.isImm() && "Expected constant shift!"); + int val = MO.getImm(); + return (val == 32) ? 0 : val; +} + + /// getBranchTargetOpValue - Helper function to get the branch target operand, /// which is either an immediate or requires a fixup. static uint32_t getBranchTargetOpValue(const MCInst &MI, unsigned OpIdx, |