diff mbox series

[v2,04/14] arm: Add GENERAL_AND_VPR_REGS regclass

Message ID 20211013101554.2732342-5-christophe.lyon@foss.st.com
State New
Headers show
Series ARM/MVE use vectors of boolean for predicates | expand

Commit Message

Christophe LYON Oct. 13, 2021, 10:15 a.m. UTC
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 mbox series

Patch

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.  */	\
 }