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[LLDB][NFC] Clean up dead code 

Remove unreachable code that will never execute.

Differential Revision: https://reviews.llvm.org/D131613
This commit is contained in:
Slava Gurevich 2022-08-10 12:52:09 -07:00
parent db9322b206
commit f4c21ab8b3
1 changed files with 0 additions and 10 deletions
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10
lldb/source/Plugins/Instruction/ARM/EmulateInstructionARM.cpp
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@ -3769,10 +3769,6 @@ bool EmulateInstructionARM::EmulateShiftImm(const uint32_t opcode,
switch (use_encoding) { switch (use_encoding) {
case eEncodingT1: case eEncodingT1:
// Due to the above special case handling!
if (shift_type == SRType_ROR)
return false;
Rd = Bits32(opcode, 2, 0); Rd = Bits32(opcode, 2, 0);
Rm = Bits32(opcode, 5, 3); Rm = Bits32(opcode, 5, 3);
setflags = !InITBlock(); setflags = !InITBlock();
@ -4139,8 +4135,6 @@ bool EmulateInstructionARM::EmulateLDMDA(const uint32_t opcode,
// if wback && registers<n> == '0' then R[n] = R[n] - 4*BitCount(registers); // if wback && registers<n> == '0' then R[n] = R[n] - 4*BitCount(registers);
if (wback && BitIsClear(registers, n)) { if (wback && BitIsClear(registers, n)) {
if (!success)
return false;
offset = (addr_byte_size * BitCount(registers)) * -1; offset = (addr_byte_size * BitCount(registers)) * -1;
context.type = EmulateInstruction::eContextAdjustBaseRegister; context.type = EmulateInstruction::eContextAdjustBaseRegister;
@ -4277,8 +4271,6 @@ bool EmulateInstructionARM::EmulateLDMDB(const uint32_t opcode,
// if wback && registers<n> == '0' then R[n] = R[n] - 4*BitCount(registers); // if wback && registers<n> == '0' then R[n] = R[n] - 4*BitCount(registers);
if (wback && BitIsClear(registers, n)) { if (wback && BitIsClear(registers, n)) {
if (!success)
return false;
offset = (addr_byte_size * BitCount(registers)) * -1; offset = (addr_byte_size * BitCount(registers)) * -1;
context.type = EmulateInstruction::eContextAdjustBaseRegister; context.type = EmulateInstruction::eContextAdjustBaseRegister;
@ -4391,8 +4383,6 @@ bool EmulateInstructionARM::EmulateLDMIB(const uint32_t opcode,
// if wback && registers<n> == '0' then R[n] = R[n] + 4*BitCount(registers); // if wback && registers<n> == '0' then R[n] = R[n] + 4*BitCount(registers);
if (wback && BitIsClear(registers, n)) { if (wback && BitIsClear(registers, n)) {
if (!success)
return false;
offset = addr_byte_size * BitCount(registers); offset = addr_byte_size * BitCount(registers);
context.type = EmulateInstruction::eContextAdjustBaseRegister; context.type = EmulateInstruction::eContextAdjustBaseRegister;