diff --git a/lib/Target/PowerPC/PPCRegisterInfo.td b/lib/Target/PowerPC/PPCRegisterInfo.td
index 67408202028..58cd543d0b9 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.td
+++ b/lib/Target/PowerPC/PPCRegisterInfo.td
@@ -261,7 +261,7 @@ def VRSAVE: SPR<256, "VRsave">, DwarfRegNum<[109]>;
 // Carry bit.  In the architecture this is really bit 0 of the XER register
 // (which really is SPR register 1);  this is the only bit interesting to a
 // compiler.
-def CARRY: SPR<1, "ca">, DwarfRegNum<[0]>;
+def CARRY: SPR<1, "ca">;
 
 // FP rounding mode:  bits 30 and 31 of the FP status and control register
 // This is not allocated as a normal register; it appears only in
@@ -271,7 +271,7 @@ def CARRY: SPR<1, "ca">, DwarfRegNum<[0]>;
 // return and call instructions are described as Uses of RM, so instructions
 // that do nothing but change RM will not get deleted.
 // Also, in the architecture it is not really a SPR; 512 is arbitrary.
-def RM: SPR<512, "**ROUNDING MODE**">, DwarfRegNum<[0]>;
+def RM: SPR<512, "**ROUNDING MODE**">;
 
 /// Register classes
 // Allocate volatiles first