[gcc(refs/users/clyon/heads/mve-autovec)] arm: Add GENERAL_AND_VPR_REGS regclass

[Christophe Lyon <clyon@gcc.gnu.org>]

https://gcc.gnu.org/g:38ae70f812ece31e678a73348c58f4c068daa9bc

commit 38ae70f812ece31e678a73348c58f4c068daa9bc
Author: Christophe Lyon <christophe.lyon@foss.st.com>
Date:   Wed Oct 13 09:16:09 2021 +0000

    arm: Add GENERAL_AND_VPR_REGS regclass
    
    At some point during the development of this patch series, it appeared
    that in some cases the register allocator wants “VPR or general”
    rather than “VPR or general or FP” (which is the same thing as
    ALL_REGS).  The series does not seem to require this anymore, but it
    seems to be a good thing to do anyway, to give the register allocator
    more freedom.
    
    2021-10-13  Christophe Lyon  <christophe.lyon@foss.st.com>
    
            gcc/
            * config/arm/arm.h (reg_class): Add GENERAL_AND_VPR_REGS.
            (REG_CLASS_NAMES): Likewise.
            (REG_CLASS_CONTENTS): Likewise.

Diff:
---
 gcc/config/arm/arm.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h
index 015299c1534..eae1b1cd0fb 100644
--- a/gcc/config/arm/arm.h
+++ b/gcc/config/arm/arm.h
@@ -1286,6 +1286,7 @@ enum reg_class
   SFP_REG,
   AFP_REG,
   VPR_REG,
+  GENERAL_AND_VPR_REGS,
   ALL_REGS,
   LIM_REG_CLASSES
 };
@@ -1315,6 +1316,7 @@ enum reg_class
   "SFP_REG",		\
   "AFP_REG",		\
   "VPR_REG",		\
+  "GENERAL_AND_VPR_REGS", \
   "ALL_REGS"		\
 }
 
@@ -1343,6 +1345,7 @@ enum reg_class
   { 0x00000000, 0x00000000, 0x00000000, 0x00000040 }, /* SFP_REG */	\
   { 0x00000000, 0x00000000, 0x00000000, 0x00000080 }, /* AFP_REG */	\
   { 0x00000000, 0x00000000, 0x00000000, 0x00000400 }, /* VPR_REG.  */	\
+  { 0x00005FFF, 0x00000000, 0x00000000, 0x00000400 }, /* GENERAL_AND_VPR_REGS.  */ \
   { 0xFFFF7FFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0000000F }  /* ALL_REGS.  */	\
 }