Merge bitcoin/bitcoin#32551: cmake: Remove ENABLE_{SSE41,AVX2,X86_SHANI,ARM_SHANI} from bitcoin-build-config.h

800b7cc42c cmake: Add missed `SSE41_CXXFLAGS` (Hennadii Stepanov)
028476e71f cmake: Remove `ENABLE_ARM_SHANI` from `bitcoin-build-config.h` (Hennadii Stepanov)
1e900528d2 cmake: Remove `ENABLE_X86_SHANI` from `bitcoin-build-config.h` (Hennadii Stepanov)
8689628e2e cmake: Remove `ENABLE_AVX2` from `bitcoin-build-config.h` (Hennadii Stepanov)
a8e2342dca cmake: Remove `ENABLE_SSE41` from `bitcoin-build-config.h` (Hennadii Stepanov)

Pull request description:

  `ENABLE_{SSE41,AVX2,X86_SHANI,ARM_SHANI}`  are already conditionally defined for the [`bitcoin_crypto`](https://github.com/bitcoin/bitcoin/blob/master/src/crypto/CMakeLists.txt) target, and they are not used by any other targets. Defining them globally in `bitcoin-build-config.h` is therefore redundant.

  Additionally, the previously missing `SSE41_CXXFLAGS` variable has been [added](https://github.com/bitcoin/bitcoin/pull/32550#issuecomment-2890918551).

ACKs for top commit:
  fanquake:
    ACK 800b7cc42c

Tree-SHA512: da792a0b780c67b432b09c9288ca98d62545315c721fed13510d1c11f8bb0cddd9a4ed7a009b4d052471dda19d0641bbc1eae4805fc306d23bf9b4ef510089c8

cmake/bitcoin-build-config.h.in

@@ -29,18 +29,9 @@
 /* Copyright year */
 #define COPYRIGHT_YEAR @COPYRIGHT_YEAR@
 
-/* Define this symbol to build code that uses ARMv8 SHA-NI intrinsics */
-#cmakedefine ENABLE_ARM_SHANI 1
-
-/* Define this symbol to build code that uses AVX2 intrinsics */
-#cmakedefine ENABLE_AVX2 1
-
 /* Define if external signer support is enabled */
 #cmakedefine ENABLE_EXTERNAL_SIGNER 1
 
-/* Define this symbol to build code that uses SSE4.1 intrinsics */
-#cmakedefine ENABLE_SSE41 1
-
 /* Define to 1 to enable tracepoints for Userspace, Statically Defined Tracing
    */
 #cmakedefine ENABLE_TRACING 1
@@ -48,9 +39,6 @@
 /* Define to 1 to enable wallet functions. */
 #cmakedefine ENABLE_WALLET 1
 
-/* Define this symbol to build code that uses x86 SHA-NI intrinsics */
-#cmakedefine ENABLE_X86_SHANI 1
-
 /* Define to 1 if you have the declaration of `fork', and to 0 if you don't.
    */
 #cmakedefine01 HAVE_DECL_FORK

cmake/introspection.cmake

@@ -170,7 +170,6 @@ if(NOT MSVC)
     " HAVE_SSE41
     CXXFLAGS ${SSE41_CXXFLAGS}
   )
-  set(ENABLE_SSE41 ${HAVE_SSE41})
 
   # Check for AVX2 intrinsics.
   set(AVX2_CXXFLAGS -mavx -mavx2)
@@ -185,7 +184,6 @@ if(NOT MSVC)
     " HAVE_AVX2
     CXXFLAGS ${AVX2_CXXFLAGS}
   )
-  set(ENABLE_AVX2 ${HAVE_AVX2})
 
   # Check for x86 SHA-NI intrinsics.
   set(X86_SHANI_CXXFLAGS -msse4 -msha)
@@ -202,7 +200,6 @@ if(NOT MSVC)
     " HAVE_X86_SHANI
     CXXFLAGS ${X86_SHANI_CXXFLAGS}
   )
-  set(ENABLE_X86_SHANI ${HAVE_X86_SHANI})
 
   # Check for ARMv8 SHA-NI intrinsics.
   set(ARM_SHANI_CXXFLAGS -march=armv8-a+crypto)
@@ -220,5 +217,4 @@ if(NOT MSVC)
     " HAVE_ARM_SHANI
     CXXFLAGS ${ARM_SHANI_CXXFLAGS}
   )
-  set(ENABLE_ARM_SHANI ${HAVE_ARM_SHANI})
 endif()

src/crypto/CMakeLists.txt

@@ -47,7 +47,7 @@ if(HAVE_SSE41 AND HAVE_X86_SHANI)
   target_compile_definitions(bitcoin_crypto PRIVATE ENABLE_SSE41 ENABLE_X86_SHANI)
   target_sources(bitcoin_crypto PRIVATE sha256_x86_shani.cpp)
   set_property(SOURCE sha256_x86_shani.cpp PROPERTY
-    COMPILE_OPTIONS ${X86_SHANI_CXXFLAGS}
+    COMPILE_OPTIONS ${SSE41_CXXFLAGS} ${X86_SHANI_CXXFLAGS}
   )
 endif()
 

src/crypto/sha256.cpp

@@ -2,8 +2,6 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include <bitcoin-build-config.h> // IWYU pragma: keep
-
 #include <crypto/sha256.h>
 #include <crypto/common.h>
 

test/lint/test_runner/src/main.rs

@@ -614,15 +614,7 @@ fn lint_includes_build_config() -> LintResult {
                     "*.cpp",
                     "*.h",
                 ])
-                .args(get_pathspecs_default_excludes())
-                .args([
-                    // These are exceptions which don't use bitcoin-build-config.h, rather CMakeLists.txt adds
-                    // these cppflags manually.
-                    ":(exclude)src/crypto/sha256_arm_shani.cpp",
-                    ":(exclude)src/crypto/sha256_avx2.cpp",
-                    ":(exclude)src/crypto/sha256_sse41.cpp",
-                    ":(exclude)src/crypto/sha256_x86_shani.cpp",
-                ]),
+                .args(get_pathspecs_default_excludes()),
         )
         .expect("grep failed");
         git()