From e546c4c9c3004274c8e275e8303ca078b794bf28 Mon Sep 17 00:00:00 2001
From: Silviu Baranga <silviu.baranga@arm.com>
Date: Wed, 18 Apr 2012 13:02:55 +0000
Subject: [PATCH] Fixed decoding for the ARM cdp2 instruction. The restriction
 on the coprocessor number was removed for this instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155000 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrInfo.td         | 7 ++++++-
 test/MC/Disassembler/ARM/arm-tests.txt | 3 +++
 utils/TableGen/EDEmitter.cpp           | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 9d005eeb818..3361ad472a7 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -908,6 +908,11 @@ def p_imm : Operand<i32> {
   let DecoderMethod = "DecodeCoprocessor";
 }
 
+def pf_imm : Operand<i32> {
+  let PrintMethod = "printPImmediate";
+  let ParserMatchClass = CoprocNumAsmOperand;
+}
+
 def CoprocRegAsmOperand : AsmOperandClass {
   let Name = "CoprocReg";
   let ParserMethod = "parseCoprocRegOperand";
@@ -4306,7 +4311,7 @@ def CDP : ABI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
   let Inst{23-20} = opc1;
 }
 
-def CDP2 : ABXI<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
+def CDP2 : ABXI<0b1110, (outs), (ins pf_imm:$cop, imm0_15:$opc1,
                c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
                NoItinerary, "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
                [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
diff --git a/test/MC/Disassembler/ARM/arm-tests.txt b/test/MC/Disassembler/ARM/arm-tests.txt
index ce1446b02b1..471076a19bd 100644
--- a/test/MC/Disassembler/ARM/arm-tests.txt
+++ b/test/MC/Disassembler/ARM/arm-tests.txt
@@ -321,3 +321,6 @@
 # CHECK: ldmgt	sp!, {r9}
 0x00 0x02 0xbd 0xc8
 
+# CHECK: cdp2	p10, #0, c6, c12, c0, #7
+0xe0 0x6a 0x0c 0xfe
+
diff --git a/utils/TableGen/EDEmitter.cpp b/utils/TableGen/EDEmitter.cpp
index 3809a4576a5..fe484ca8cf1 100644
--- a/utils/TableGen/EDEmitter.cpp
+++ b/utils/TableGen/EDEmitter.cpp
@@ -594,6 +594,7 @@ static int ARMFlagFromOpName(LiteralConstantEmitter *type,
   IMM("jtblock_operand");
   IMM("nohash_imm");
   IMM("p_imm");
+  IMM("pf_imm");
   IMM("c_imm");
   IMM("coproc_option_imm");
   IMM("imod_op");