[llvm-commits] [llvm] r96399 - /llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td

[Dale Johannesen]

Author: johannes
Date: Tue Feb 16 15:53:27 2010
New Revision: 96399

URL: http://llvm.org/viewvc/llvm-project?rev=96399&view=rev
Log:
Really reserve R2 on PPC Darwin.  PR 6314.


Modified:
    llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td

Modified: llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td?rev=96399&r1=96398&r2=96399&view=diff

==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.td Tue Feb 16 15:53:27 2010
@@ -287,10 +287,8 @@
     GPRCClass::allocation_order_begin(const MachineFunction &MF) const {
       // 32-bit SVR4 ABI: r2 is reserved for the OS.
       // 64-bit SVR4 ABI: r2 is reserved for the TOC pointer.
-      if (!MF.getTarget().getSubtarget<PPCSubtarget>().isDarwin())
-        return begin()+1;
-
-      return begin();
+      // Darwin: R2 is reserved for CR save/restore sequence.
+      return begin()+1;
     }
     GPRCClass::iterator
     GPRCClass::allocation_order_end(const MachineFunction &MF) const {
@@ -325,10 +323,8 @@
     G8RCClass::iterator
     G8RCClass::allocation_order_begin(const MachineFunction &MF) const {
       // 64-bit SVR4 ABI: r2 is reserved for the TOC pointer.
-      if (!MF.getTarget().getSubtarget<PPCSubtarget>().isDarwin())
-        return begin()+1;
-
-      return begin();
+      // Darwin: r2 is reserved for CR save/restore sequence.
+      return begin()+1;
     }
     G8RCClass::iterator
     G8RCClass::allocation_order_end(const MachineFunction &MF) const {