[gcc r15-9900] i386: Change Diamond Rapids feature detect when model number could not be distinguished

[Haochen Jiang via Gcc-cvs]

https://gcc.gnu.org/g:977b8fb2263702f1486b914c190fc15f89fa3ab7

commit r15-9900-g977b8fb2263702f1486b914c190fc15f89fa3ab7
Author: Haochen Jiang <haochen.ji...@intel.com>
Date:   Tue Jul 1 14:02:36 2025 +0800

    i386: Change Diamond Rapids feature detect when model number could not be 
distinguished
    
    We will use AMX-FP8 for DMR since it is a smaller and more unique feature.
    
    gcc/ChangeLog:
    
            * config/i386/driver-i386.cc (host_detect_local_cpu): Change
            to AMX-FP8 for Diamond Rapids.

Diff:
---
 gcc/config/i386/driver-i386.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/i386/driver-i386.cc b/gcc/config/i386/driver-i386.cc
index 1ff05e52ab3d..915a33127090 100644
--- a/gcc/config/i386/driver-i386.cc
+++ b/gcc/config/i386/driver-i386.cc
@@ -627,7 +627,7 @@ const char *host_detect_local_cpu (int argc, const char 
**argv)
              if (has_feature (FEATURE_AVX512F))
                {
                  /* Assume Diamond Rapids.  */
-                 if (has_feature (FEATURE_AMX_TRANSPOSE))
+                 if (has_feature (FEATURE_AMX_FP8))
                    cpu = "diamondrapids";
                  /* Assume Granite Rapids D.  */
                  else if (has_feature (FEATURE_AMX_COMPLEX))