From: Dale Johannesen Date: Tue, 16 Feb 2010 21:53:27 +0000 (+0000) Subject: Really reserve R2 on PPC Darwin. PR 6314. X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5994fd0f4d6bbe6955ac07b39e3befb4f5834134;p=oota-llvm.git Really reserve R2 on PPC Darwin. PR 6314. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96399 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/Target/PowerPC/PPCRegisterInfo.td b/lib/Target/PowerPC/PPCRegisterInfo.td index 049e893e82e..1cb7340c9c2 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.td +++ b/lib/Target/PowerPC/PPCRegisterInfo.td @@ -287,10 +287,8 @@ def GPRC : RegisterClass<"PPC", [i32], 32, 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().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 @@ def G8RC : RegisterClass<"PPC", [i64], 64, 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().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 {