[llvm] r327715 - [SystemZ] Make AnyRegBitRegClass unallocatable.

[Jonas Paulsson via llvm-commits]

Author: jonpa
Date: Fri Mar 16 08:21:26 2018
New Revision: 327715

URL: http://llvm.org/viewvc/llvm-project?rev=327715&view=rev
Log:
[SystemZ]  Make AnyRegBitRegClass unallocatable.

AnyReg is just for the assembler and it is better to have it as not
allocatable in order to simplify (make more intuitive) the RegPressureSets.

Review: Ulrich Weigand

Modified:
    llvm/trunk/lib/Target/SystemZ/SystemZRegisterInfo.td

Modified: llvm/trunk/lib/Target/SystemZ/SystemZRegisterInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZRegisterInfo.td?rev=327715&r1=327714&r2=327715&view=diff
==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZRegisterInfo.td (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZRegisterInfo.td Fri Mar 16 08:21:26 2018
@@ -130,7 +130,7 @@ defm AnyReg : SystemZRegClass<"AnyReg",
                               [i64, f64, v8i8, v4i16, v2i32, v2f32], 64,
                               (add (sequence "R%uD", 0, 15),
                                    (sequence "F%uD", 0, 15),
-                                   (sequence "V%u", 0, 15))>;
+                                   (sequence "V%u", 0, 15)), 0/*allocatable*/>;
 
 //===----------------------------------------------------------------------===//
 // Floating-point registers