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| author | Shih-wei Liao <sliao@google.com> | 2010-05-26 03:21:39 +0000 |
|---|---|---|
| committer | Shih-wei Liao <sliao@google.com> | 2010-05-26 03:21:39 +0000 |
| commit | 63ff440fd17c797cebb3c64c7198dad46ef7c90a (patch) | |
| tree | 28e834eabaad28aff3eb9d75b0667795fea3d7fb /lib/Target/ARM/ARMCodeEmitter.cpp | |
| parent | c157e6c2e69bb0e0fdda6f5e51742e003b7c882f (diff) | |
| download | external_llvm-63ff440fd17c797cebb3c64c7198dad46ef7c90a.zip external_llvm-63ff440fd17c797cebb3c64c7198dad46ef7c90a.tar.gz external_llvm-63ff440fd17c797cebb3c64c7198dad46ef7c90a.tar.bz2 | |
Adding the missing implementation for ARM::SBFX and ARM::UBFX.
Fixing http://llvm.org/bugs/show_bug.cgi?id=7225.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104667 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMCodeEmitter.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMCodeEmitter.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMCodeEmitter.cpp b/lib/Target/ARM/ARMCodeEmitter.cpp index 66c8032..59cb541 100644 --- a/lib/Target/ARM/ARMCodeEmitter.cpp +++ b/lib/Target/ARM/ARMCodeEmitter.cpp @@ -820,11 +820,23 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI, uint32_t v = ~MI.getOperand(2).getImm(); int32_t lsb = CountTrailingZeros_32(v); int32_t msb = (32 - CountLeadingZeros_32(v)) - 1; - // Insts[20-16] = msb, Insts[11-7] = lsb + // Instr{20-16} = msb, Instr{11-7} = lsb Binary |= (msb & 0x1F) << 16; Binary |= (lsb & 0x1F) << 7; emitWordLE(Binary); return; + } else if ((TID.Opcode == ARM::UBFX) || (TID.Opcode == ARM::SBFX)) { + // Encode Rn in Instr{0-3} + Binary |= getMachineOpValue(MI, OpIdx++); + + uint32_t lsb = MI.getOperand(OpIdx++).getImm(); + uint32_t widthm1 = MI.getOperand(OpIdx++).getImm() - 1; + + // Instr{20-16} = widthm1, Instr{11-7} = lsb + Binary |= (widthm1 & 0x1F) << 16; + Binary |= (lsb & 0x1F) << 7; + emitWordLE(Binary); + return; } // If this is a two-address operand, skip it. e.g. MOVCCr operand 1. |