[PATCH] RISC-V: Fix FIXED_REGISTERS comment missing return address register

[chenyixuan]

From: Yixuan Chen <chenyix...@iscas.ac.cn>

gcc/config/ChangeLog:

2024-09-24  Yixuan Chen  <chenyix...@iscas.ac.cn>

        * riscv/riscv.h: Fix FIXED_REGISTERS comment missing return address 
register.
---
 gcc/config/riscv/riscv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/riscv/riscv.h b/gcc/config/riscv/riscv.h
index ead97867eb8..3aecb43f831 100644
--- a/gcc/config/riscv/riscv.h
+++ b/gcc/config/riscv/riscv.h
@@ -316,7 +316,7 @@ ASM_MISA_SPEC
 
 #define FIRST_PSEUDO_REGISTER 128
 
-/* x0, sp, gp, and tp are fixed.  */
+/* x0, ra, sp, gp, and tp are fixed.  */
 
 #define FIXED_REGISTERS                                                        
\
 { /* General registers.  */                                            \
-- 
2.45.2