[clang] 089c9c1 - [clang] Add -mavx512bmm flag (#208520)

[via cfe-commits]

Author: disservin
Date: 2026-07-10T11:08:02+08:00
New Revision: 089c9c1c3ede224bdc79510d09e779922d46388c

URL: https://github.com/llvm/llvm-project/commit/089c9c1c3ede224bdc79510d09e779922d46388c
DIFF: https://github.com/llvm/llvm-project/commit/089c9c1c3ede224bdc79510d09e779922d46388c.diff

LOG: [clang] Add -mavx512bmm flag (#208520)

https://github.com/llvm/llvm-project/pull/182556 missed the addition of
the -mavx512bmm flag

Added: 
    

Modified: 
    clang/include/clang/Options/Options.td
    clang/test/CodeGen/builtin-cpu-supports-all.c
    clang/test/CodeGen/target-builtin-noerror.c
    clang/test/Driver/x86-target-features.c
    clang/test/Preprocessor/x86_target_features.c

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/Options/Options.td b/clang/include/clang/Options/Options.td
index 677aaf00b5083..f86323ad2d6bd 100644
--- a/clang/include/clang/Options/Options.td
+++ b/clang/include/clang/Options/Options.td
@@ -7217,6 +7217,8 @@ def mavx512bf16 : Flag<["-"], "mavx512bf16">, Group<m_x86_Features_Group>;
 def mno_avx512bf16 : Flag<["-"], "mno-avx512bf16">, Group<m_x86_Features_Group>;
 def mavx512bitalg : Flag<["-"], "mavx512bitalg">, Group<m_x86_Features_Group>;
 def mno_avx512bitalg : Flag<["-"], "mno-avx512bitalg">, Group<m_x86_Features_Group>;
+def mavx512bmm : Flag<["-"], "mavx512bmm">, Group<m_x86_Features_Group>;
+def mno_avx512bmm : Flag<["-"], "mno-avx512bmm">, Group<m_x86_Features_Group>;
 def mavx512bw : Flag<["-"], "mavx512bw">, Group<m_x86_Features_Group>;
 def mno_avx512bw : Flag<["-"], "mno-avx512bw">, Group<m_x86_Features_Group>;
 def mavx512cd : Flag<["-"], "mavx512cd">, Group<m_x86_Features_Group>;

diff  --git a/clang/test/CodeGen/builtin-cpu-supports-all.c b/clang/test/CodeGen/builtin-cpu-supports-all.c
index c1274ccda827e..73ccf88dffd87 100644
--- a/clang/test/CodeGen/builtin-cpu-supports-all.c
+++ b/clang/test/CodeGen/builtin-cpu-supports-all.c
@@ -536,3 +536,8 @@ TEST_CPU_SUPPORTS(movrs, "movrs")
 // CHECK: [[LOAD:%[^ ]+]] = load i32, ptr getelementptr inbounds nuw (i8, ptr @__cpu_features2, i64 8)
 // CHECK: = and i32 [[LOAD]], 67108864
 TEST_CPU_SUPPORTS(amx_movrs, "amx-movrs")
+
+// CHECK-LABEL: define{{.*}} void @test_avx512bmm(
+// CHECK: [[LOAD:%[^ ]+]] = load i32, ptr getelementptr inbounds nuw (i8, ptr @__cpu_features2, i64 8)
+// CHECK: = and i32 [[LOAD]], 134217728
+TEST_CPU_SUPPORTS(avx512bmm, "avx512bmm")

diff  --git a/clang/test/CodeGen/target-builtin-noerror.c b/clang/test/CodeGen/target-builtin-noerror.c
index 1070f232a492a..86e74154cef4c 100644
--- a/clang/test/CodeGen/target-builtin-noerror.c
+++ b/clang/test/CodeGen/target-builtin-noerror.c
@@ -78,6 +78,7 @@ void verifyfeaturestrings(void) {
   (void)__builtin_cpu_supports("vpclmulqdq");
   (void)__builtin_cpu_supports("avx512vnni");
   (void)__builtin_cpu_supports("avx512bitalg");
+  (void)__builtin_cpu_supports("avx512bmm");
   (void)__builtin_cpu_supports("avx512bf16");
   (void)__builtin_cpu_supports("avx512vp2intersect");
   (void)__builtin_cpu_supports("f16c");

diff  --git a/clang/test/Driver/x86-target-features.c b/clang/test/Driver/x86-target-features.c
index f18e820d15444..e11753b91de98 100644
--- a/clang/test/Driver/x86-target-features.c
+++ b/clang/test/Driver/x86-target-features.c
@@ -121,6 +121,11 @@
 // BITALG: "-target-feature" "+avx512bitalg"
 // NO-BITALG: "-target-feature" "-avx512bitalg"
 
+// RUN: %clang --target=i386 -march=i386 -mavx512bmm %s -### 2>&1 | FileCheck -check-prefix=BMM %s
+// RUN: %clang --target=i386 -march=i386 -mno-avx512bmm %s -### 2>&1 | FileCheck -check-prefix=NO-BMM %s
+// BMM: "-target-feature" "+avx512bmm"
+// NO-BMM: "-target-feature" "-avx512bmm"
+
 // RUN: %clang --target=i386 -march=i386 -mavx512vnni %s -### 2>&1 | FileCheck -check-prefix=VNNI %s
 // RUN: %clang --target=i386 -march=i386 -mno-avx512vnni %s -### 2>&1 | FileCheck -check-prefix=NO-VNNI %s
 // VNNI: "-target-feature" "+avx512vnni"

diff  --git a/clang/test/Preprocessor/x86_target_features.c b/clang/test/Preprocessor/x86_target_features.c
index ac8ad64a46950..c7d006171fddb 100644
--- a/clang/test/Preprocessor/x86_target_features.c
+++ b/clang/test/Preprocessor/x86_target_features.c
@@ -180,6 +180,10 @@
 // AVX512BITALG: #define __SSE__ 1
 // AVX512BITALG: #define __SSSE3__ 1
 
+// RUN: %clang -target i386-unknown-unknown -march=atom -mavx512bmm -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=AVX512BMM %s
+
+// AVX512BMM: #define __AVX512BMM__ 1
+// AVX512BMM: #define __AVX512BW__ 1
 
 // RUN: %clang -target i386-unknown-unknown -march=atom -mavx512vbmi -mno-avx512bw -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=AVX512VBMINOAVX512BW %s
 
@@ -212,6 +216,11 @@
 // AVX512BITALGNOAVX512BW-NOT: #define __AVX512BITALG__ 1
 // AVX512BITALGNOAVX512BW-NOT: #define __AVX512BW__ 1
 
+// RUN: %clang -target i386-unknown-unknown -march=atom -mavx512bmm -mno-avx512bw -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=AVX512BMM_NOAVX512BW %s
+
+// AVX512BMM_NOAVX512BW-NOT: #define __AVX512BMM__ 1
+// AVX512BMM_NOAVX512BW-NOT: #define __AVX512BW__ 1
+
 // RUN: %clang -target i386-unknown-unknown -march=atom -msse4.2 -x c -E -dM -o - %s | FileCheck -match-full-lines --check-prefix=SSE42POPCNT %s
 
 // SSE42POPCNT: #define __POPCNT__ 1