Fix decoding of Thumb2 prefetch instructions, which account for all the remaining Thumb2 decoding failures found by randomized testing so far.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138341 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
index 5711b69..c4b2f61 100644
--- a/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
+++ b/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
@@ -2392,9 +2392,15 @@
uint64_t Address, const void *Decoder) {
DecodeStatus S = Success;
- if (Inst.getOpcode() != ARM::t2PLDs) {
- unsigned Rt = fieldFromInstruction32(Insn, 12, 4);
- CHECK(S, DecodeGPRRegisterClass(Inst, Rt, Address, Decoder));
+ switch (Inst.getOpcode()) {
+ case ARM::t2PLDs:
+ case ARM::t2PLDWs:
+ case ARM::t2PLIs:
+ break;
+ default: {
+ unsigned Rt = fieldFromInstruction32(Insn, 12, 4);
+ CHECK(S, DecodeGPRRegisterClass(Inst, Rt, Address, Decoder));
+ }
}
unsigned Rn = fieldFromInstruction32(Insn, 16, 4);