From 096c0a03313ea43a1e4035645b02bf99fd35801a Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@apple.com>
Date: Wed, 26 Jun 2013 22:23:32 +0000
Subject: [PATCH] [Mips Disassembler] Have the DecodeCCRRegisterClass function
 use the getReg function to lookup the proper tablegen'ed register
 enumeration.  Previously, it was using the encoded value directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185026 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/Disassembler/MipsDisassembler.cpp | 5 ++++-
 test/MC/Disassembler/Mips/mips32.txt              | 8 ++++----
 test/MC/Disassembler/Mips/mips32_le.txt           | 8 ++++----
 test/MC/Disassembler/Mips/mips32r2.txt            | 8 ++++----
 test/MC/Disassembler/Mips/mips32r2_le.txt         | 8 ++++----
 5 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/lib/Target/Mips/Disassembler/MipsDisassembler.cpp b/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
index 4af67037e97..b6b265cd1ed 100644
--- a/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
+++ b/lib/Target/Mips/Disassembler/MipsDisassembler.cpp
@@ -405,7 +405,10 @@ static DecodeStatus DecodeCCRRegisterClass(MCInst &Inst,
                                            unsigned RegNo,
                                            uint64_t Address,
                                            const void *Decoder) {
-  Inst.addOperand(MCOperand::CreateReg(RegNo));
+  if (RegNo > 31)
+    return MCDisassembler::Fail;
+  unsigned Reg = getReg(Decoder, Mips::CCRRegClassID, RegNo);
+  Inst.addOperand(MCOperand::CreateReg(Reg));
   return MCDisassembler::Success;
 }
 
diff --git a/test/MC/Disassembler/Mips/mips32.txt b/test/MC/Disassembler/Mips/mips32.txt
index ef8bf71bd3a..5c2d5ca4768 100644
--- a/test/MC/Disassembler/Mips/mips32.txt
+++ b/test/MC/Disassembler/Mips/mips32.txt
@@ -158,8 +158,8 @@
 # CHECK: ceil.w.s $f6, $f7
 0x46 0x00 0x39 0x8e
 
-# CHECK: cfc1  $6, $7
-0x44 0x46 0x38 0x00
+# CHECK: cfc1  $6, $fcc0
+0x44 0x46 0x08 0x00
 
 # CHECK: clo  $6, $7
 0x70 0xe6 0x30 0x21
@@ -167,8 +167,8 @@
 # CHECK: clz  $6, $7
 0x70 0xe6 0x30 0x20
 
-# CHECK: ctc1  $6, $7
-0x44 0xc6 0x38 0x00
+# CHECK: ctc1  $6, $fcc0
+0x44 0xc6 0x08 0x00
 
 # CHECK: cvt.d.s $f6, $f7
 0x46 0x00 0x39 0xa1
diff --git a/test/MC/Disassembler/Mips/mips32_le.txt b/test/MC/Disassembler/Mips/mips32_le.txt
index a0885a4bfe8..f0553c68f88 100644
--- a/test/MC/Disassembler/Mips/mips32_le.txt
+++ b/test/MC/Disassembler/Mips/mips32_le.txt
@@ -158,8 +158,8 @@
 # CHECK: ceil.w.s $f6, $f7
 0x8e 0x39 0x00 0x46
 
-# CHECK: cfc1  $6, $7
-0x00 0x38 0x46 0x44
+# CHECK: cfc1  $6, $fcc0
+0x00 0x08 0x46 0x44
 
 # CHECK: clo  $6, $7
 0x21 0x30 0xe6 0x70
@@ -167,8 +167,8 @@
 # CHECK: clz  $6, $7
 0x20 0x30 0xe6 0x70
 
-# CHECK: ctc1  $6, $7
-0x00 0x38 0xc6 0x44
+# CHECK: ctc1  $6, $fcc0
+0x00 0x08 0xc6 0x44
 
 # CHECK: cvt.d.s $f6, $f7
 0xa1 0x39 0x00 0x46
diff --git a/test/MC/Disassembler/Mips/mips32r2.txt b/test/MC/Disassembler/Mips/mips32r2.txt
index 991eaa6cc97..ac20e411c1f 100644
--- a/test/MC/Disassembler/Mips/mips32r2.txt
+++ b/test/MC/Disassembler/Mips/mips32r2.txt
@@ -158,8 +158,8 @@
 # CHECK: ceil.w.s $f6, $f7
 0x46 0x00 0x39 0x8e
 
-# CHECK: cfc1  $6, $7
-0x44 0x46 0x38 0x00
+# CHECK: cfc1  $6, $fcc0
+0x44 0x46 0x08 0x00
 
 # CHECK: clo  $6, $7
 0x70 0xe6 0x30 0x21
@@ -167,8 +167,8 @@
 # CHECK: clz  $6, $7
 0x70 0xe6 0x30 0x20
 
-# CHECK: ctc1  $6, $7
-0x44 0xc6 0x38 0x00
+# CHECK: ctc1  $6, $fcc0
+0x44 0xc6 0x08 0x00
 
 # CHECK: cvt.d.s $f6, $f7
 0x46 0x00 0x39 0xa1
diff --git a/test/MC/Disassembler/Mips/mips32r2_le.txt b/test/MC/Disassembler/Mips/mips32r2_le.txt
index 10c293821c9..a9131a35f8c 100644
--- a/test/MC/Disassembler/Mips/mips32r2_le.txt
+++ b/test/MC/Disassembler/Mips/mips32r2_le.txt
@@ -158,8 +158,8 @@
 # CHECK: ceil.w.s $f6, $f7
 0x8e 0x39 0x00 0x46
 
-# CHECK: cfc1  $6, $7
-0x00 0x38 0x46 0x44
+# CHECK: cfc1  $6, $fcc0
+0x00 0x08 0x46 0x44
 
 # CHECK: clo  $6, $7
 0x21 0x30 0xe6 0x70
@@ -167,8 +167,8 @@
 # CHECK: clz  $6, $7
 0x20 0x30 0xe6 0x70
 
-# CHECK: ctc1  $6, $7
-0x00 0x38 0xc6 0x44
+# CHECK: ctc1  $6, $fcc0
+0x00 0x08 0xc6 0x44
 
 # CHECK: cvt.d.s $f6, $f7
 0xa1 0x39 0x00 0x46
-- 
2.34.1