Integrated a fix for an ARM disassembler crash

(0xd 0xd 0xa0 0xf4, or "vld2hs.8 {d0[], d1[]}, [r0]!")

llvm-svn: 157289
This commit is contained in:
Sean Callanan 2012-05-22 21:42:43 +00:00
parent 8d32c05ed4
commit 8b1e432113
1 changed files with 29 additions and 3 deletions

View File

@ -360,7 +360,33 @@ Index: lib/Target/ARM/Disassembler/ARMDisassembler.cpp
break;
}
@@ -2837,19 +2887,25 @@
@@ -2555,7 +2605,6 @@
unsigned Rm = fieldFromInstruction32(Insn, 0, 4);
unsigned align = fieldFromInstruction32(Insn, 4, 1);
unsigned size = 1 << fieldFromInstruction32(Insn, 6, 2);
- unsigned pred = fieldFromInstruction32(Insn, 22, 4);
align *= 2*size;
switch (Inst.getOpcode()) {
@@ -2586,16 +2635,11 @@
return MCDisassembler::Fail;
Inst.addOperand(MCOperand::CreateImm(align));
- if (Rm == 0xD)
- Inst.addOperand(MCOperand::CreateReg(0));
- else if (Rm != 0xF) {
+ if (Rm != 0xD && Rm != 0xF) {
if (!Check(S, DecodeGPRRegisterClass(Inst, Rm, Address, Decoder)))
return MCDisassembler::Fail;
}
- if (!Check(S, DecodePredicateOperand(Inst, pred, Address, Decoder)))
- return MCDisassembler::Fail;
-
return S;
}
@@ -2837,19 +2881,25 @@
static DecodeStatus DecodeThumbBROperand(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder) {
@ -389,7 +415,7 @@ Index: lib/Target/ARM/Disassembler/ARMDisassembler.cpp
return MCDisassembler::Success;
}
@@ -3162,10 +3218,25 @@
@@ -3162,10 +3212,25 @@
static DecodeStatus DecodeThumbBLXOffset(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder) {
@ -417,7 +443,7 @@ Index: lib/Target/ARM/Disassembler/ARMDisassembler.cpp
return MCDisassembler::Success;
}
@@ -3271,15 +3342,32 @@
@@ -3271,15 +3336,32 @@
static DecodeStatus
DecodeThumbBCCTargetOperand(llvm::MCInst &Inst, unsigned Val,
uint64_t Address, const void *Decoder){