[gcc r16-164] Refactor msse4 and mno-sse4.

[hongtao Liu via Gcc-cvs]

https://gcc.gnu.org/g:d85444a3b00c9a6fce56459af5ec081439a9aaa0

commit r16-164-gd85444a3b00c9a6fce56459af5ec081439a9aaa0
Author: liuhongt <hongtao....@intel.com>
Date:   Tue Apr 1 00:30:07 2025 -0700

    Refactor msse4 and mno-sse4.
    
    gcc/ChangeLog:
    
            PR target/119549
            * common/config/i386/i386-common.cc (ix86_handle_option):
            Refactor msse4 and mno-sse4.
            * config/i386/i386.opt (msse4): Remove RejectNegative.
            (mno-sse4): Remove the entry.
            * config/i386/i386-options.cc
            (ix86_valid_target_attribute_inner_p): Remove special code
            which handles mno-sse4.

Diff:
---
 gcc/common/config/i386/i386-common.cc | 23 ++++++++++++-----------
 gcc/config/i386/i386-options.cc       |  7 -------
 gcc/config/i386/i386.opt              |  6 +-----
 3 files changed, 13 insertions(+), 23 deletions(-)

diff --git a/gcc/common/config/i386/i386-common.cc 
b/gcc/common/config/i386/i386-common.cc
index 4815fbc4d359..296df3b32304 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -1519,17 +1519,18 @@ ix86_handle_option (struct gcc_options *opts,
       return true;
 
     case OPT_msse4:
-      gcc_assert (value != 0);
-      opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE4_SET;
-      opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_SSE4_SET;
-      return true;
-
-    case OPT_mno_sse4:
-      gcc_assert (value != 0);
-      opts->x_ix86_isa_flags &= ~OPTION_MASK_ISA_SSE4_UNSET;
-      opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_SSE4_UNSET;
-      opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_SSE4_UNSET;
-      opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_SSE4_UNSET;
+      if (value)
+       {
+         opts->x_ix86_isa_flags |= OPTION_MASK_ISA_SSE4_SET;
+         opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_SSE4_SET;
+       }
+      else
+       {
+         opts->x_ix86_isa_flags &= ~OPTION_MASK_ISA_SSE4_UNSET;
+         opts->x_ix86_isa_flags_explicit |= OPTION_MASK_ISA_SSE4_UNSET;
+         opts->x_ix86_isa_flags2 &= ~OPTION_MASK_ISA2_SSE4_UNSET;
+         opts->x_ix86_isa_flags2_explicit |= OPTION_MASK_ISA2_SSE4_UNSET;
+       }
       return true;
 
     case OPT_msse4a:
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc
index 964449fa8cd7..45aa9b4b732f 100644
--- a/gcc/config/i386/i386-options.cc
+++ b/gcc/config/i386/i386-options.cc
@@ -1271,13 +1271,6 @@ ix86_valid_target_attribute_inner_p (tree fndecl, tree 
args, char *p_strings[],
            }
        }
 
-      /* Fixup -msse4 which is RejectNegative to -mno-sse4 when negated.  */
-      if (opt == OPT_msse4 && !opt_set_p)
-       {
-         opt = OPT_mno_sse4;
-         opt_set_p = true;
-       }
-
       /* Process the option.  */
       if (opt == N_OPTS)
        {
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt
index 27d34bd64eaa..0abf13480f57 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -721,13 +721,9 @@ Target Mask(ISA_SSE4_2) Var(ix86_isa_flags) Save
 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and 
code generation.
 
 msse4
-Target RejectNegative Mask(ISA_SSE4_2) Var(ix86_isa_flags) Save
+Target Mask(ISA_SSE4_2) Var(ix86_isa_flags) Save
 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and SSE4.2 built-in functions and 
code generation.
 
-mno-sse4
-Target RejectNegative InverseMask(ISA_SSE4_1) Var(ix86_isa_flags) Save
-Do not support SSE4.1 and SSE4.2 built-in functions and code generation.
-
 msse5
 Target Undocumented Alias(mavx) Warn(%<-msse5%> was removed)
 ;; Deprecated