[gcc r13-4900] xtensa: Change GP_RETURN{, _REG_COUNT} to GP_RETURN_{FIRST, LAST}

[gcc r13-4900] xtensa: Change GP_RETURN{, _REG_COUNT} to GP_RETURN_{FIRST, LAST}

[Max Filippov]

https://gcc.gnu.org/g:98a1b4d073b9993b0acda525332225f90714e2ec

commit r13-4900-g98a1b4d073b9993b0acda525332225f90714e2ec
Author: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date:   Tue Dec 27 15:30:12 2022 +0900

    xtensa: Change GP_RETURN{,_REG_COUNT} to GP_RETURN_{FIRST,LAST}
    
    gcc/ChangeLog:
    
            * config/xtensa/xtensa.h (GP_RETURN, GP_RETURN_REG_COUNT):
            Change to GP_RETURN_FIRST and GP_RETURN_LAST, respectively.
            * config/xtensa/xtensa.cc (xtensa_function_value,
            xtensa_libcall_value, xtensa_function_value_regno_p): Ditto.

Diff:
---
 gcc/config/xtensa/xtensa.cc | 10 +++++-----
 gcc/config/xtensa/xtensa.h  |  4 ++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc
index 709b0d52d06..66e25349521 100644
--- a/gcc/config/xtensa/xtensa.cc
+++ b/gcc/config/xtensa/xtensa.cc
@@ -4526,9 +4526,9 @@ xtensa_function_value (const_tree valtype, const_tree func ATTRIBUTE_UNUSED,
 		       bool outgoing)
 {
   return gen_rtx_REG ((INTEGRAL_TYPE_P (valtype)
-                      && TYPE_PRECISION (valtype) < BITS_PER_WORD)
-                     ? SImode : TYPE_MODE (valtype),
-                     outgoing ? GP_OUTGOING_RETURN : GP_RETURN);
+		       && TYPE_PRECISION (valtype) < BITS_PER_WORD)
+		      ? SImode : TYPE_MODE (valtype),
+		      outgoing ? GP_OUTGOING_RETURN : GP_RETURN_FIRST);
 }
 
 /* Worker function for TARGET_LIBCALL_VALUE.  */
@@ -4538,7 +4538,7 @@ xtensa_libcall_value (machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
 {
   return gen_rtx_REG ((GET_MODE_CLASS (mode) == MODE_INT
 		       && GET_MODE_SIZE (mode) < UNITS_PER_WORD)
-		      ? SImode : mode, GP_RETURN);
+		      ? SImode : mode, GP_RETURN_FIRST);
 }
 
 /* Worker function TARGET_FUNCTION_VALUE_REGNO_P.  */
@@ -4546,7 +4546,7 @@ xtensa_libcall_value (machine_mode mode, const_rtx fun ATTRIBUTE_UNUSED)
 static bool
 xtensa_function_value_regno_p (const unsigned int regno)
 {
-  return (regno >= GP_RETURN && regno < GP_RETURN + GP_RETURN_REG_COUNT);
+  return IN_RANGE (regno, GP_RETURN_FIRST, GP_RETURN_LAST);
 }
 
 /* The static chain is passed in memory.  Provide rtx giving 'mem'
diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h
index 60d3fdfbc70..a7c112b8753 100644
--- a/gcc/config/xtensa/xtensa.h
+++ b/gcc/config/xtensa/xtensa.h
@@ -474,9 +474,9 @@ enum reg_class
 
 /* Symbolic macros for the registers used to return integer, floating
    point, and values of coprocessor and user-defined modes.  */
-#define GP_RETURN (GP_REG_FIRST + 2 + WINDOW_SIZE)
+#define GP_RETURN_FIRST (GP_REG_FIRST + 2 + WINDOW_SIZE)
+#define GP_RETURN_LAST  (GP_RETURN_FIRST + 3)
 #define GP_OUTGOING_RETURN (GP_REG_FIRST + 2)
-#define GP_RETURN_REG_COUNT 4
 
 /* Symbolic macros for the first/last argument registers.  */
 #define GP_ARG_FIRST (GP_REG_FIRST + 2)