[gcc r13-1898] xtensa: Fix conflicting hard regno between indirect sibcall fixups and EH_RETURN_STACKADJ_RTX

[gcc r13-1898] xtensa: Fix conflicting hard regno between indirect sibcall fixups and EH_RETURN_STACKADJ_RTX

[Max Filippov]

https://gcc.gnu.org/g:2fa8c4a659a19ec971c80704f48f96c13aae9ac3

commit r13-1898-g2fa8c4a659a19ec971c80704f48f96c13aae9ac3
Author: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date:   Sat Jul 30 04:32:46 2022 +0900

    xtensa: Fix conflicting hard regno between indirect sibcall fixups and EH_RETURN_STACKADJ_RTX
    
    The hard register A10 was already allocated for EH_RETURN_STACKADJ_RTX.
    (although exception handling and sibling call may not apply at the same time,
     but for safety)
    
    gcc/ChangeLog:
    
            * config/xtensa/xtensa.md: Change hard register number used in
            the split patterns for indirect sibling call fixups from 10 to 11,
            the last free one for the CALL0 ABI.

Diff:
---
 gcc/config/xtensa/xtensa.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
index 899ce2755aa..1294aab6c5d 100644
--- a/gcc/config/xtensa/xtensa.md
+++ b/gcc/config/xtensa/xtensa.md
@@ -25,7 +25,7 @@
   (A7_REG		7)
   (A8_REG		8)
   (A9_REG		9)
-  (A10_REG		10)
+  (A11_REG		11)
 
   (UNSPEC_NOP		2)
   (UNSPEC_PLT		3)
@@ -2295,9 +2295,9 @@
   "reload_completed
    && !TARGET_WINDOWED_ABI && SIBLING_CALL_P (insn)
    && ! call_used_or_fixed_reg_p (REGNO (operands[0]))"
-  [(set (reg:SI A10_REG)
+  [(set (reg:SI A11_REG)
 	(match_dup 0))
-   (call (mem:SI (reg:SI A10_REG))
+   (call (mem:SI (reg:SI A11_REG))
 	 (match_dup 1))])
 
 (define_expand "sibcall_value"
@@ -2328,10 +2328,10 @@
   "reload_completed
    && !TARGET_WINDOWED_ABI && SIBLING_CALL_P (insn)
    && ! call_used_or_fixed_reg_p (REGNO (operands[1]))"
-  [(set (reg:SI A10_REG)
+  [(set (reg:SI A11_REG)
 	(match_dup 1))
    (set (match_dup 0)
-	(call (mem:SI (reg:SI A10_REG))
+	(call (mem:SI (reg:SI A11_REG))
 	      (match_dup 2)))])
 
 (define_insn "entry"