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-rw-r--r--lib/Target/ARM/ARMInstrThumb2.td3
-rw-r--r--lib/Target/ARM/AsmParser/ARMAsmParser.cpp4
2 files changed, 6 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 142ab22..bbac56d 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -4180,3 +4180,6 @@ def : t2InstAlias<"ldrsb${p}.w $Rt, $addr",
(t2LDRSBpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
def : t2InstAlias<"ldrsh${p}.w $Rt, $addr",
(t2LDRSHpcrel GPRnopc:$Rt, t2ldr_pcrel_imm12:$addr, pred:$p)>;
+
+def : t2InstAlias<"add${p} $Rd, pc, $imm",
+ (t2ADR rGPR:$Rd, imm0_4095:$imm, pred:$p)>;
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 84814f1..a520bff 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -4628,9 +4628,11 @@ bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
//
// If either register is a high reg, it's either one of the SP
// variants (handled above) or a 32-bit encoding, so we just
- // check against T3.
+ // check against T3. If the second register is the PC, this is an
+ // alternate form of ADR, which uses encoding T4, so check for that too.
if ((!isARMLowRegister(static_cast<ARMOperand*>(Operands[3])->getReg()) ||
!isARMLowRegister(static_cast<ARMOperand*>(Operands[4])->getReg())) &&
+ static_cast<ARMOperand*>(Operands[4])->getReg() != ARM::PC &&
static_cast<ARMOperand*>(Operands[5])->isT2SOImm())
return false;
// If both registers are low, we're in an IT block, and the immediate is