From 15eb0a15e568f46d2d2e56f8785b668fe8b48b13 Mon Sep 17 00:00:00 2001
From: Misha Brukman <brukman+llvm@gmail.com>
Date: Thu, 1 Jul 2004 21:24:50 +0000
Subject: [PATCH] * Do not allocate r0 as we use it indiscriminantly in the
 instr selector. * Do not define CR register class because we don't (yet) have
 the i4 type

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14551 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCRegisterInfo.td | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.td b/lib/Target/PowerPC/PPCRegisterInfo.td
index d0e2e0fb1c3..d6e8175009d 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.td
+++ b/lib/Target/PowerPC/PPCRegisterInfo.td
@@ -75,12 +75,12 @@ def TBU : SPR<5>;
 /// Register classes
 def GPRC : 
   RegisterClass<i32, 4, 
-    [R0, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24,
-    R25, R26, R27, R28, R29, R30, R31, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10]>
+    [R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25,
+     R26, R27, R28, R29, R30, R31, R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10]>
 {
   let Methods = [{
     iterator allocation_order_end(MachineFunction &MF) const {
-      return end()-9;   // do not allocate r1-r10
+      return end()-10;   // do not allocate r0-r10
     }
   }];
 }
@@ -89,4 +89,4 @@ def FPRC : RegisterClass<f64, 8, [F0, F1, F2, F3, F4, F5, F6, F7,
   F8, F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21,
   F22, F23, F24, F25, F26, F27, F28, F29, F30, F31]>;
 
-def CRRC : RegisterClass<i4, 4, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7]>;
+//def CRRC : RegisterClass<i4, 1, [CR0, CR1, CR2, CR3, CR4, CR5, CR6, CR7]>;
-- 
2.34.1