[gcc r15-983] Add AVX10.1 target_clones support

[Haochen Jiang]

https://gcc.gnu.org/g:1f2ca510065a2033bac408eb5a960ef0126f25cc

commit r15-983-g1f2ca510065a2033bac408eb5a960ef0126f25cc
Author: Haochen Jiang <haochen.jiang@intel.com>
Date:   Mon May 20 15:52:32 2024 +0800

    Add AVX10.1 target_clones support
    
    Since AVX10 is the first major ISA introduced after AVX-512, we propose
    to add target_clones support for it.
    
    Although AVX10.1-256 won't cover 512-bit part of AVX512F, but since
    it is only for priority but not for implication, it won't be an issue.
    
    gcc/ChangeLog:
    
            * common/config/i386/i386-common.cc: Change Granite Rapids
            series CPU type to P_PROC_AVX10_1_512.
            * common/config/i386/i386-cpuinfo.h (enum feature_priority):
            Revise comment part. Add P_AVX10_1_256, P_AVX10_1_512,
            P_PROC_AVX10_1_512.
            * common/config/i386/i386-isas.h: Link to avx10.1-256, avx10.1-512.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/i386/avx10_1-25.c: New test.
            * gcc.target/i386/avx10_1-26.c: Ditto.

Diff:
---
 gcc/common/config/i386/i386-common.cc      | 4 ++--
 gcc/common/config/i386/i386-cpuinfo.h      | 5 ++++-
 gcc/common/config/i386/i386-isas.h         | 4 ++--
 gcc/testsuite/gcc.target/i386/avx10_1-25.c | 9 +++++++++
 gcc/testsuite/gcc.target/i386/avx10_1-26.c | 9 +++++++++
 5 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/gcc/common/config/i386/i386-common.cc b/gcc/common/config/i386/i386-common.cc
index 895e5fa662d..5d9c188c9c7 100644
--- a/gcc/common/config/i386/i386-common.cc
+++ b/gcc/common/config/i386/i386-common.cc
@@ -2187,10 +2187,10 @@ const pta processor_alias_table[] =
   {"meteorlake", PROCESSOR_ALDERLAKE, CPU_HASWELL, PTA_ALDERLAKE,
     M_CPU_SUBTYPE (INTEL_COREI7_ALDERLAKE), P_PROC_AVX2},
   {"graniterapids", PROCESSOR_GRANITERAPIDS, CPU_HASWELL, PTA_GRANITERAPIDS,
-    M_CPU_SUBTYPE (INTEL_COREI7_GRANITERAPIDS), P_PROC_AVX512F},
+    M_CPU_SUBTYPE (INTEL_COREI7_GRANITERAPIDS), P_PROC_AVX10_1_512},
   {"graniterapids-d", PROCESSOR_GRANITERAPIDS_D, CPU_HASWELL,
     PTA_GRANITERAPIDS_D, M_CPU_SUBTYPE (INTEL_COREI7_GRANITERAPIDS_D),
-    P_PROC_AVX512F},
+    P_PROC_AVX10_1_512},
   {"arrowlake", PROCESSOR_ARROWLAKE, CPU_HASWELL, PTA_ARROWLAKE,
     M_CPU_SUBTYPE (INTEL_COREI7_ARROWLAKE), P_PROC_AVX2},
   {"arrowlake-s", PROCESSOR_ARROWLAKE_S, CPU_HASWELL, PTA_ARROWLAKE_S,
diff --git a/gcc/common/config/i386/i386-cpuinfo.h b/gcc/common/config/i386/i386-cpuinfo.h
index 9edad96d4fd..3ec9e005a6a 100644
--- a/gcc/common/config/i386/i386-cpuinfo.h
+++ b/gcc/common/config/i386/i386-cpuinfo.h
@@ -110,7 +110,7 @@ enum processor_subtypes
 /* Priority of i386 features, greater value is higher priority.   This is
    used to decide the order in which function dispatch must happen.  For
    instance, a version specialized for SSE4.2 should be checked for dispatch
-   before a version for SSE3, as SSE4.2 implies SSE3.  */
+   before a version for SSE3.  */
 enum feature_priority
 {
   P_NONE = 0,
@@ -146,6 +146,9 @@ enum feature_priority
   P_AVX512F,
   P_PROC_AVX512F,
   P_X86_64_V4,
+  P_AVX10_1_256,
+  P_AVX10_1_512,
+  P_PROC_AVX10_1_512,
   P_PROC_DYNAMIC
 };
 
diff --git a/gcc/common/config/i386/i386-isas.h b/gcc/common/config/i386/i386-isas.h
index 4b4d4b4af99..2a092f740bb 100644
--- a/gcc/common/config/i386/i386-isas.h
+++ b/gcc/common/config/i386/i386-isas.h
@@ -184,6 +184,6 @@ ISA_NAMES_TABLE_START
   ISA_NAMES_TABLE_ENTRY("apxf", FEATURE_APX_F, P_NONE, "-mapxf")
   ISA_NAMES_TABLE_ENTRY("usermsr", FEATURE_USER_MSR, P_NONE, "-musermsr")
   ISA_NAMES_TABLE_ENTRY("avx10.1", FEATURE_AVX10_1_256, P_NONE, "-mavx10.1")
-  ISA_NAMES_TABLE_ENTRY("avx10.1-256", FEATURE_AVX10_1_256, P_NONE, "-mavx10.1-256")
-  ISA_NAMES_TABLE_ENTRY("avx10.1-512", FEATURE_AVX10_1_512, P_NONE, "-mavx10.1-512")
+  ISA_NAMES_TABLE_ENTRY("avx10.1-256", FEATURE_AVX10_1_256, P_AVX10_1_256, "-mavx10.1-256")
+  ISA_NAMES_TABLE_ENTRY("avx10.1-512", FEATURE_AVX10_1_512, P_AVX10_1_512, "-mavx10.1-512")
 ISA_NAMES_TABLE_END
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-25.c b/gcc/testsuite/gcc.target/i386/avx10_1-25.c
new file mode 100644
index 00000000000..73f1b724560
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-25.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mavx" } */
+
+#include <immintrin.h>
+__attribute__((target_clones ("default","avx10.1-256")))
+__m256d foo(__m256d a, __m256d b)
+{
+  return a + b;
+}
diff --git a/gcc/testsuite/gcc.target/i386/avx10_1-26.c b/gcc/testsuite/gcc.target/i386/avx10_1-26.c
new file mode 100644
index 00000000000..514ab57a406
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx10_1-26.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include <immintrin.h>
+__attribute__((target_clones ("default","avx10.1-512")))
+__m512d foo(__m512d a, __m512d b)
+{
+  return a + b;
+}