diff options
Diffstat (limited to 'lib/Target/ARM/ARMRegisterInfo.td')
| -rw-r--r-- | lib/Target/ARM/ARMRegisterInfo.td | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMRegisterInfo.td b/lib/Target/ARM/ARMRegisterInfo.td index 16998b2d7b..b16a12c08d 100644 --- a/lib/Target/ARM/ARMRegisterInfo.td +++ b/lib/Target/ARM/ARMRegisterInfo.td @@ -304,7 +304,11 @@ def TuplesOE2D : RegisterTuples<[dsub_0, dsub_1], // Register class representing a pair of consecutive D registers. // Use the Q registers for the even-odd pairs. -def DPair : RegisterClass<"ARM", [v2i64], 128, (interleave QPR, TuplesOE2D)>; +def DPair : RegisterClass<"ARM", [v2i64], 128, (interleave QPR, TuplesOE2D)> { + // Allocate starting at non-VFP2 registers D16-D31 first. + let AltOrders = [(rotl DPair, 16)]; + let AltOrderSelect = [{ return 1; }]; +} // Pseudo-registers representing 3 consecutive D registers. def Tuples3D : RegisterTuples<[dsub_0, dsub_1, dsub_2], |