Update the .cvs files.

[oota-llvm.git] / lib / Target / X86 / X86RegisterInfo.td

diff --git a/lib/Target/X86/X86RegisterInfo.td b/lib/Target/X86/X86RegisterInfo.td
index ab4e838c367ebf61a9c3d6021cfaa45ffa1f3677..b713c892ba1a65fa770410f055ed5c121b27dd2b 100644 (file)
--- a/lib/Target/X86/X86RegisterInfo.td
+++ b/lib/Target/X86/X86RegisterInfo.td
@@ -419,6 +419,9 @@ def GR64 : RegisterClass<"X86", [i64], 64,
     GR64Class::allocation_order_end(const MachineFunction &MF) const {
       const TargetMachine &TM = MF.getTarget();
       const TargetRegisterInfo *RI = TM.getRegisterInfo();
+      const X86Subtarget &Subtarget = TM.getSubtarget<X86Subtarget>();
+      if (!Subtarget.is64Bit())
+        return begin();  // None of these are allocatable in 32-bit.
       if (RI->hasFP(MF)) // Does the function dedicate RBP to being a frame ptr?
         return end()-2;  // If so, don't allocate RSP or RBP
       else
@@ -485,14 +488,14 @@ def FR64 : RegisterClass<"X86", [f64], 64,
 // faster on common hardware.  In reality, this should be controlled by a
 // command line option or something.
 
-def RFP32 : RegisterClass<"X86", [f32], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
-def RFP64 : RegisterClass<"X86", [f64], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
-def RFP80 : RegisterClass<"X86", [f80], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
+def RFP32 : RegisterClass<"X86",[f32], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
+def RFP64 : RegisterClass<"X86",[f64], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
+def RFP80 : RegisterClass<"X86",[f80], 32, [FP0, FP1, FP2, FP3, FP4, FP5, FP6]>;
 
 // Floating point stack registers (these are not allocatable by the
 // register allocator - the floating point stackifier is responsible
 // for transforming FPn allocations to STn registers)
-def RST : RegisterClass<"X86", [f80], 32,
+def RST : RegisterClass<"X86", [f80, f64, f32], 32,
                         [ST0, ST1, ST2, ST3, ST4, ST5, ST6, ST7]> {
     let MethodProtos = [{
     iterator allocation_order_end(const MachineFunction &MF) const;