diff options
Diffstat (limited to 'recipes/llvm/llvm2.7/r104558-VFPmisc.patch')
| -rw-r--r-- | recipes/llvm/llvm2.7/r104558-VFPmisc.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/recipes/llvm/llvm2.7/r104558-VFPmisc.patch b/recipes/llvm/llvm2.7/r104558-VFPmisc.patch new file mode 100644 index 0000000000..471ff71a44 --- /dev/null +++ b/recipes/llvm/llvm2.7/r104558-VFPmisc.patch @@ -0,0 +1,58 @@ +--- llvm/lib/Target/ARM/ARMCodeEmitter.cpp 2010/05/25 08:42:45 104587 ++++ llvm/lib/Target/ARM/ARMCodeEmitter.cpp 2010/05/25 10:23:52 104588 +@@ -1465,12 +1465,55 @@ + } + + void ARMCodeEmitter::emitMiscInstruction(const MachineInstr &MI) { ++ unsigned Opcode = MI.getDesc().Opcode; + // Part of binary is determined by TableGn. + unsigned Binary = getBinaryCodeForInstr(MI); + + // Set the conditional execution predicate + Binary |= II->getPredicate(&MI) << ARMII::CondShift; + ++ switch(Opcode) { ++ default: ++ llvm_unreachable("ARMCodeEmitter::emitMiscInstruction"); ++ ++ case ARM::FMSTAT: ++ // No further encoding needed. ++ break; ++ ++ case ARM::VMRS: ++ case ARM::VMSR: { ++ const MachineOperand &MO0 = MI.getOperand(0); ++ // Encode Rt. ++ Binary |= ARMRegisterInfo::getRegisterNumbering(MO0.getReg()) ++ << ARMII::RegRdShift; ++ break; ++ } ++ ++ case ARM::FCONSTD: ++ case ARM::FCONSTS: { ++ // Encode Dd / Sd. ++ Binary |= encodeVFPRd(MI, 0); ++ ++ // Encode imm., Table A7-18 VFP modified immediate constants ++ const MachineOperand &MO1 = MI.getOperand(1); ++ unsigned Imm = static_cast<unsigned>(MO1.getFPImm()->getValueAPF() ++ .bitcastToAPInt().getHiBits(32).getLimitedValue()); ++ unsigned ModifiedImm; ++ ++ if(Opcode == ARM::FCONSTS) ++ ModifiedImm = (Imm & 0x80000000) >> 24 | // a ++ (Imm & 0x03F80000) >> 19; // bcdefgh ++ else // Opcode == ARM::FCONSTD ++ ModifiedImm = (Imm & 0x80000000) >> 24 | // a ++ (Imm & 0x007F0000) >> 16; // bcdefgh ++ ++ // Insts{19-16} = abcd, Insts{3-0} = efgh ++ Binary |= ((ModifiedImm & 0xF0) >> 4) << 16; ++ Binary |= (ModifiedImm & 0xF); ++ break; ++ } ++ } ++ + emitWordLE(Binary); + } + |