https://github.com/python/cpython/commit/1e975aee28924afbd956183918cef278e09ce8f3
commit: 1e975aee28924afbd956183918cef278e09ce8f3
branch: main
author: Bénédikt Tran <[email protected]>
committer: picnixz <[email protected]>
date: 2025-06-27T17:12:21+02:00
summary:
gh-135755: rename undocumented `HACL_CAN_COMPILE_SIMD{128,256}` macros (#135847)
Rename undocumented `HACL_CAN_COMPILE_SIMD{128,256}` macros
to `_Py_HACL_CAN_COMPILE_VEC{128,256}`. These macros are private.
files:
M Modules/blake2module.c
M Modules/hmacmodule.c
M PCbuild/pythoncore.vcxproj
M configure
M configure.ac
M pyconfig.h.in
diff --git a/Modules/blake2module.c b/Modules/blake2module.c
index 9e279e11b518d2..163f238a4268d0 100644
--- a/Modules/blake2module.c
+++ b/Modules/blake2module.c
@@ -43,25 +43,25 @@
// SIMD256 can't be compiled on macOS ARM64, and performance of SIMD128 isn't
// great; but when compiling a universal2 binary, autoconf will set
-// HACL_CAN_COMPILE_SIMD128 and HACL_CAN_COMPILE_SIMD256 because they *can* be
-// compiled on x86_64. If we're on macOS ARM64, disable these preprocessor
-// symbols.
+// _Py_HACL_CAN_COMPILE_VEC{128,256} because they *can* be compiled on x86_64.
+// If we're on macOS ARM64, we however disable these preprocessor symbols.
#if defined(__APPLE__) && defined(__arm64__)
-# undef HACL_CAN_COMPILE_SIMD128
-# undef HACL_CAN_COMPILE_SIMD256
+# undef _Py_HACL_CAN_COMPILE_VEC128
+# undef _Py_HACL_CAN_COMPILE_VEC256
#endif
-// Small mismatch between the variable names Python defines as part of
configure
-// at the ones HACL* expects to be set in order to enable those headers.
-#define HACL_CAN_COMPILE_VEC128 HACL_CAN_COMPILE_SIMD128
-#define HACL_CAN_COMPILE_VEC256 HACL_CAN_COMPILE_SIMD256
+// HACL* expects HACL_CAN_COMPILE_VEC* macros to be set in order to enable
+// the corresponding SIMD instructions so we need to "forward" the values
+// we just deduced above.
+#define HACL_CAN_COMPILE_VEC128 _Py_HACL_CAN_COMPILE_VEC128
+#define HACL_CAN_COMPILE_VEC256 _Py_HACL_CAN_COMPILE_VEC256
#include "_hacl/Hacl_Hash_Blake2s.h"
#include "_hacl/Hacl_Hash_Blake2b.h"
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
#include "_hacl/Hacl_Hash_Blake2s_Simd128.h"
#endif
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
#include "_hacl/Hacl_Hash_Blake2b_Simd256.h"
#endif
@@ -88,7 +88,7 @@ blake2_get_state(PyObject *module)
return (Blake2State *)state;
}
-#if defined(HACL_CAN_COMPILE_SIMD128) || defined(HACL_CAN_COMPILE_SIMD256)
+#if defined(_Py_HACL_CAN_COMPILE_VEC128) ||
defined(_Py_HACL_CAN_COMPILE_VEC256)
static inline Blake2State *
blake2_get_state_from_type(PyTypeObject *module)
{
@@ -181,7 +181,7 @@ blake2module_init_cpu_features(Blake2State *state)
#undef ECX_SSE3
#undef EBX_AVX2
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
// TODO(picnixz): use py_cpuid_features (gh-125022) to improve detection
state->can_run_simd128 = sse && sse2 && sse3 && sse41 && sse42 && cmov;
#else
@@ -191,7 +191,7 @@ blake2module_init_cpu_features(Blake2State *state)
state->can_run_simd128 = false;
#endif
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
// TODO(picnixz): use py_cpuid_features (gh-125022) to improve detection
state->can_run_simd256 = state->can_run_simd128 && avx && avx2;
#else
@@ -332,18 +332,18 @@ is_blake2s(blake2_impl impl)
static inline blake2_impl
type_to_impl(PyTypeObject *type)
{
-#if defined(HACL_CAN_COMPILE_SIMD128) || defined(HACL_CAN_COMPILE_SIMD256)
+#if defined(_Py_HACL_CAN_COMPILE_VEC128) ||
defined(_Py_HACL_CAN_COMPILE_VEC256)
Blake2State *st = blake2_get_state_from_type(type);
#endif
if (!strcmp(type->tp_name, blake2b_type_spec.name)) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
return st->can_run_simd256 ? Blake2b_256 : Blake2b;
#else
return Blake2b;
#endif
}
else if (!strcmp(type->tp_name, blake2s_type_spec.name)) {
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
return st->can_run_simd128 ? Blake2s_128 : Blake2s;
#else
return Blake2s;
@@ -357,10 +357,10 @@ typedef struct {
union {
Hacl_Hash_Blake2s_state_t *blake2s_state;
Hacl_Hash_Blake2b_state_t *blake2b_state;
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
Hacl_Hash_Blake2s_Simd128_state_t *blake2s_128_state;
#endif
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
Hacl_Hash_Blake2b_Simd256_state_t *blake2b_256_state;
#endif
};
@@ -429,13 +429,13 @@ blake2_update_unlocked(Blake2Object *self, uint8_t *buf,
Py_ssize_t len)
switch (self->impl) {
// blake2b_256_state and blake2s_128_state must be if'd since
// otherwise this results in an unresolved symbol at link-time.
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
HACL_UPDATE(Hacl_Hash_Blake2b_Simd256_update,
self->blake2b_256_state, buf, len);
return;
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
HACL_UPDATE(Hacl_Hash_Blake2s_Simd128_update,
self->blake2s_128_state, buf, len);
@@ -555,12 +555,12 @@ py_blake2_new(PyTypeObject *type, PyObject *data, int
digest_size,
// Ensure that the states are NULL-initialized in case of an error.
// See: py_blake2_clear() for more details.
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
self->blake2b_256_state = NULL;
break;
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
self->blake2s_128_state = NULL;
break;
@@ -623,12 +623,12 @@ py_blake2_new(PyTypeObject *type, PyObject *data, int
digest_size,
} while (0)
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
BLAKE2_MALLOC(Blake2b_Simd256, self->blake2b_256_state);
break;
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
BLAKE2_MALLOC(Blake2s_Simd128, self->blake2s_128_state);
break;
@@ -756,12 +756,12 @@ blake2_blake2b_copy_unlocked(Blake2Object *self,
Blake2Object *cpy)
} while (0)
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
BLAKE2_COPY(Blake2b_Simd256, blake2b_256_state);
break;
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
BLAKE2_COPY(Blake2s_Simd128, blake2s_128_state);
break;
@@ -840,12 +840,12 @@ static uint8_t
blake2_blake2b_compute_digest(Blake2Object *self, uint8_t *digest)
{
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
return Hacl_Hash_Blake2b_Simd256_digest(
self->blake2b_256_state, digest);
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
return Hacl_Hash_Blake2s_Simd128_digest(
self->blake2s_128_state, digest);
@@ -923,11 +923,11 @@ static Hacl_Hash_Blake2b_index
hacl_get_blake2_info(Blake2Object *self)
{
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
return Hacl_Hash_Blake2b_Simd256_info(self->blake2b_256_state);
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
return Hacl_Hash_Blake2s_Simd128_info(self->blake2s_128_state);
#endif
@@ -975,12 +975,12 @@ py_blake2_clear(PyObject *op)
} while (0)
switch (self->impl) {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
case Blake2b_256:
BLAKE2_FREE(Blake2b_Simd256, self->blake2b_256_state);
break;
#endif
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
case Blake2s_128:
BLAKE2_FREE(Blake2s_Simd128, self->blake2s_128_state);
break;
diff --git a/Modules/hmacmodule.c b/Modules/hmacmodule.c
index e7a5ccbb19b45c..95e400231bb65c 100644
--- a/Modules/hmacmodule.c
+++ b/Modules/hmacmodule.c
@@ -31,14 +31,15 @@
#endif
#if defined(__APPLE__) && defined(__arm64__)
-# undef HACL_CAN_COMPILE_SIMD128
-# undef HACL_CAN_COMPILE_SIMD256
+# undef _Py_HACL_CAN_COMPILE_VEC128
+# undef _Py_HACL_CAN_COMPILE_VEC256
#endif
-// Small mismatch between the variable names Python defines as part of
configure
-// at the ones HACL* expects to be set in order to enable those headers.
-#define HACL_CAN_COMPILE_VEC128 HACL_CAN_COMPILE_SIMD128
-#define HACL_CAN_COMPILE_VEC256 HACL_CAN_COMPILE_SIMD256
+// HACL* expects HACL_CAN_COMPILE_VEC* macros to be set in order to enable
+// the corresponding SIMD instructions so we need to "forward" the values
+// we just deduced above.
+#define HACL_CAN_COMPILE_VEC128 _Py_HACL_CAN_COMPILE_VEC128
+#define HACL_CAN_COMPILE_VEC256 _Py_HACL_CAN_COMPILE_VEC256
#include "_hacl/Hacl_HMAC.h"
#include "_hacl/Hacl_Streaming_HMAC.h" // Hacl_Agile_Hash_* identifiers
@@ -361,7 +362,7 @@ narrow_hmac_hash_kind(hmacmodule_state *state,
HMAC_Hash_Kind kind)
{
switch (kind) {
case Py_hmac_kind_hmac_blake2s_32: {
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
if (state->can_run_simd128) {
return Py_hmac_kind_hmac_vectorized_blake2s_32;
}
@@ -369,7 +370,7 @@ narrow_hmac_hash_kind(hmacmodule_state *state,
HMAC_Hash_Kind kind)
return kind;
}
case Py_hmac_kind_hmac_blake2b_32: {
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
if (state->can_run_simd256) {
return Py_hmac_kind_hmac_vectorized_blake2b_32;
}
@@ -1601,7 +1602,7 @@ hmacmodule_init_cpu_features(hmacmodule_state *state)
#undef ECX_SSE3
#undef EBX_AVX2
-#if HACL_CAN_COMPILE_SIMD128
+#if _Py_HACL_CAN_COMPILE_VEC128
// TODO(picnixz): use py_cpuid_features (gh-125022) to improve detection
state->can_run_simd128 = sse && sse2 && sse3 && sse41 && sse42 && cmov;
#else
@@ -1611,7 +1612,7 @@ hmacmodule_init_cpu_features(hmacmodule_state *state)
state->can_run_simd128 = false;
#endif
-#if HACL_CAN_COMPILE_SIMD256
+#if _Py_HACL_CAN_COMPILE_VEC256
// TODO(picnixz): use py_cpuid_features (gh-125022) to improve detection
state->can_run_simd256 = state->can_run_simd128 && avx && avx2;
#else
diff --git a/PCbuild/pythoncore.vcxproj b/PCbuild/pythoncore.vcxproj
index 32a8f2dbad3d5e..b911c9385634d7 100644
--- a/PCbuild/pythoncore.vcxproj
+++ b/PCbuild/pythoncore.vcxproj
@@ -419,8 +419,12 @@
<ClCompile Include="..\Modules\_abc.c" />
<ClCompile Include="..\Modules\_bisectmodule.c" />
<ClCompile Include="..\Modules\blake2module.c">
- <PreprocessorDefinitions Condition="'$(Platform)' ==
'x64'">HACL_CAN_COMPILE_SIMD128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
- <PreprocessorDefinitions Condition="'$(Platform)' ==
'x64'">HACL_CAN_COMPILE_SIMD256;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+ <PreprocessorDefinitions Condition="'$(Platform)' == 'x64'">
+ _Py_HACL_CAN_COMPILE_VEC128;%(PreprocessorDefinitions)
+ </PreprocessorDefinitions>
+ <PreprocessorDefinitions Condition="'$(Platform)' == 'x64'">
+ _Py_HACL_CAN_COMPILE_VEC256;%(PreprocessorDefinitions)
+ </PreprocessorDefinitions>
</ClCompile>
<ClCompile Include="..\Modules\_codecsmodule.c" />
<ClCompile Include="..\Modules\_collectionsmodule.c" />
diff --git a/configure b/configure
index 43b36d9231e341..75ae1699a8e451 100755
--- a/configure
+++ b/configure
@@ -32633,7 +32633,7 @@ then :
LIBHACL_SIMD128_FLAGS="-msse -msse2 -msse3 -msse4.1 -msse4.2"
-printf "%s\n" "#define HACL_CAN_COMPILE_SIMD128 1" >>confdefs.h
+printf "%s\n" "#define _Py_HACL_CAN_COMPILE_VEC128 1" >>confdefs.h
# macOS universal2 builds *support* the -msse etc flags because they're
@@ -32709,7 +32709,7 @@ then :
LIBHACL_SIMD256_FLAGS="-mavx2"
-printf "%s\n" "#define HACL_CAN_COMPILE_SIMD256 1" >>confdefs.h
+printf "%s\n" "#define _Py_HACL_CAN_COMPILE_VEC256 1" >>confdefs.h
# macOS universal2 builds *support* the -mavx2 compiler flag because it's
diff --git a/configure.ac b/configure.ac
index e77696e3a4e025..4da1ba78b54b0d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8026,7 +8026,8 @@ then
AX_CHECK_COMPILE_FLAG([-msse -msse2 -msse3 -msse4.1 -msse4.2],[
[LIBHACL_SIMD128_FLAGS="-msse -msse2 -msse3 -msse4.1 -msse4.2"]
- AC_DEFINE([HACL_CAN_COMPILE_SIMD128], [1], [HACL* library can compile
SIMD128 implementations])
+ AC_DEFINE([_Py_HACL_CAN_COMPILE_VEC128], [1], [
+ HACL* library can compile SIMD128 implementations])
# macOS universal2 builds *support* the -msse etc flags because they're
# available on x86_64. However, performance of the HACL SIMD128
implementation
@@ -8057,7 +8058,8 @@ if test "$ac_sys_system" != "Linux-android" -a
"$ac_sys_system" != "WASI" || \
then
AX_CHECK_COMPILE_FLAG([-mavx2],[
[LIBHACL_SIMD256_FLAGS="-mavx2"]
- AC_DEFINE([HACL_CAN_COMPILE_SIMD256], [1], [HACL* library can compile
SIMD256 implementations])
+ AC_DEFINE([_Py_HACL_CAN_COMPILE_VEC256], [1], [
+ HACL* library can compile SIMD256 implementations])
# macOS universal2 builds *support* the -mavx2 compiler flag because it's
# available on x86_64; but the HACL SIMD256 build then fails because the
diff --git a/pyconfig.h.in b/pyconfig.h.in
index d4f1da7fb10776..d7c496fccc682c 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -50,12 +50,6 @@
/* Define if getpgrp() must be called as getpgrp(0). */
#undef GETPGRP_HAVE_ARG
-/* HACL* library can compile SIMD128 implementations */
-#undef HACL_CAN_COMPILE_SIMD128
-
-/* HACL* library can compile SIMD256 implementations */
-#undef HACL_CAN_COMPILE_SIMD256
-
/* Define if you have the 'accept' function. */
#undef HAVE_ACCEPT
@@ -2026,6 +2020,12 @@
/* Defined if _Complex C type can be used with libffi. */
#undef _Py_FFI_SUPPORT_C_COMPLEX
+/* HACL* library can compile SIMD128 implementations */
+#undef _Py_HACL_CAN_COMPILE_VEC128
+
+/* HACL* library can compile SIMD256 implementations */
+#undef _Py_HACL_CAN_COMPILE_VEC256
+
/* Define to force use of thread-safe errno, h_errno, and other functions */
#undef _REENTRANT
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