[gcc(refs/vendors/riscv/heads/gcc-15-with-riscv-opts)] [PATCH][PR target/122942] RISC-V: Add zifencei extension to the rva23s64 and rvb23s64 profiles [PR12

[Jeff Law]

https://gcc.gnu.org/g:183cac7aea5cc1a38a49d2abd02df99d7ef491ea

commit 183cac7aea5cc1a38a49d2abd02df99d7ef491ea
Author: Peter Bergner <bergner@tenstorrent.com>
Date:   Mon Dec 1 16:03:44 2025 -0700

    [PATCH][PR target/122942] RISC-V: Add zifencei extension to the rva23s64 and rvb23s64 profiles [PR122942]
    
    While verifying our Ascalon extensions list was complete (it isn't, follow-on
    patch coming), I noticed that the rva23s64 and rvb23s64 profiles were missing
    the mandatory zifencei extension, hence the following patch.
    
    This was bootstrapped and regtested with no regressions.
    Ok for trunk?
    
    Peter
    
    The RVA23S64 and RVB23S64 profiles both state that zifencei is a mandatory
    extension.  Add it to both profiles.
    
    gcc/
            PR target/122942
            * config/riscv/riscv-profiles.def (rva23s64): Add zifencei.
            (rvb23s64): Likewise.
    
    (cherry picked from commit 976be4e0148b614fccb60c85e5b3bc96e0bb26b6)

Diff:
---
 gcc/config/riscv/riscv-profiles.def | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/config/riscv/riscv-profiles.def b/gcc/config/riscv/riscv-profiles.def
index 741c4719b37d..ea1c235a22c2 100644
--- a/gcc/config/riscv/riscv-profiles.def
+++ b/gcc/config/riscv/riscv-profiles.def
@@ -61,7 +61,7 @@ RISCV_PROFILE("rva23s64",     "rv64imafdcbv_zicsr_zicntr_zihpm_ziccif_ziccrse"
 				 "_zicbom_zicbop_zicboz_zfhmin_zkt_zvfhmin_zvbb_zvkt_zihintntl"
 				 "_zicond_zimop_zcmop_zcb_zfa_zawrs_svbare_svade_ssccptr"
 				 "_sstvecd_sstvala_sscounterenw_svpbmt_svinval_svnapot_sstc"
-				 "_sscofpmf_ssnpm_ssu64xl_sha_supm")
+				 "_sscofpmf_ssnpm_ssu64xl_sha_supm_zifencei")
 
 /* RVB23 contains all mandatory base ISA for RVA22U64 and the new extension
    'zihintntl,zicond,zimop,zcmop,zfa,zawrs' as mandatory extensions.  */
@@ -77,6 +77,6 @@ RISCV_PROFILE("rvb23s64",     "rv64imafdcb_zicsr_zicntr_zihpm_ziccif_ziccrse"
 				 "_zicbom_zicbop_zicboz_zfhmin_zkt_zvfhmin_zvbb_zvkt"
 				 "_zihintntl_zicond_zimop_zcmop_zcb_zfa_zawrs_svbare_svade"
 				 "_ssccptr_sstvecd_sstvala_sscounterenw_svpbmt_svinval_svnapot"
-				 "_sstc_sscofpmf_ssu64xl_supm")
+				 "_sstc_sscofpmf_ssu64xl_supm_zifencei")
 
 #undef RISCV_PROFILE