[gcc r15-44] RISC-V: Fix parsing of Zic* extensions

[gcc r15-44] RISC-V: Fix parsing of Zic* extensions

[Christoph Mﾃｼllner]

https://gcc.gnu.org/g:285300eb928b171236e895f28c960ad02dcb0d67

commit r15-44-g285300eb928b171236e895f28c960ad02dcb0d67
Author: Christoph Müllner <christoph.muellner@vrull.eu>
Date:   Mon Apr 29 00:46:06 2024 +0200

    RISC-V: Fix parsing of Zic* extensions
    
    The extension parsing table entries for a range of Zic* extensions
    does not match the mask definition in riscv.opt.
    This results in broken TARGET_ZIC* macros, because the values of
    riscv_zi_subext and riscv_zicmo_subext are set wrong.
    
    This patch fixes this by moving Zic64b into riscv_zicmo_subext
    and all other affected Zic* extensions to riscv_zi_subext.
    
    gcc/ChangeLog:
    
            * common/config/riscv/riscv-common.cc: Move ziccamoa, ziccif,
            zicclsm, and ziccrse into riscv_zi_subext.
            * config/riscv/riscv.opt: Define MASK_ZIC64B for
            riscv_ziccmo_subext.
    
    Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

Diff:
---
 gcc/common/config/riscv/riscv-common.cc | 8 ++++----
 gcc/config/riscv/riscv.opt              | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc
index 43b7549e3ec..8cc0e727737 100644
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -1638,15 +1638,15 @@ static const riscv_ext_flag_table_t riscv_ext_flag_table[] =
 
   {"zihintntl", &gcc_options::x_riscv_zi_subext, MASK_ZIHINTNTL},
   {"zihintpause", &gcc_options::x_riscv_zi_subext, MASK_ZIHINTPAUSE},
+  {"ziccamoa", &gcc_options::x_riscv_zi_subext, MASK_ZICCAMOA},
+  {"ziccif", &gcc_options::x_riscv_zi_subext, MASK_ZICCIF},
+  {"zicclsm", &gcc_options::x_riscv_zi_subext, MASK_ZICCLSM},
+  {"ziccrse", &gcc_options::x_riscv_zi_subext, MASK_ZICCRSE},
 
   {"zicboz", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOZ},
   {"zicbom", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOM},
   {"zicbop", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOP},
   {"zic64b", &gcc_options::x_riscv_zicmo_subext, MASK_ZIC64B},
-  {"ziccamoa", &gcc_options::x_riscv_zicmo_subext, MASK_ZICCAMOA},
-  {"ziccif", &gcc_options::x_riscv_zicmo_subext, MASK_ZICCIF},
-  {"zicclsm", &gcc_options::x_riscv_zicmo_subext, MASK_ZICCLSM},
-  {"ziccrse", &gcc_options::x_riscv_zicmo_subext, MASK_ZICCRSE},
 
   {"zve32x",   &gcc_options::x_target_flags, MASK_VECTOR},
   {"zve32f",   &gcc_options::x_target_flags, MASK_VECTOR},
diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
index b14888e9816..ee824756381 100644
--- a/gcc/config/riscv/riscv.opt
+++ b/gcc/config/riscv/riscv.opt
@@ -237,8 +237,6 @@ Mask(ZIHINTPAUSE) Var(riscv_zi_subext)
 
 Mask(ZICOND)      Var(riscv_zi_subext)
 
-Mask(ZIC64B)      Var(riscv_zi_subext)
-
 Mask(ZICCAMOA)    Var(riscv_zi_subext)
 
 Mask(ZICCIF)      Var(riscv_zi_subext)
@@ -390,6 +388,8 @@ Mask(ZICBOM) Var(riscv_zicmo_subext)
 
 Mask(ZICBOP) Var(riscv_zicmo_subext)
 
+Mask(ZIC64B) Var(riscv_zicmo_subext)
+
 TargetVariable
 int riscv_zf_subext