crypto: Guard code with ENABLE_SSE41 macro

The code in `sha_x86_shani.cpp` uses the `_mm_blend_epi16` function from the SSE4.1 instruction set extension. However, it is possible that SHA-NI is enabled even when SSE4.1 is disabled. This changes avoid compilation errors in such a condition.
hebasto · Nov 16, 2023 · 85b3c0f · 85b3c0f
1 parent 4d41ed5
commit 85b3c0f
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/crypto/sha256.cpp b/src/crypto/sha256.cpp
@@ -616,7 +616,7 @@ std::string SHA256AutoDetect(sha256_implementation::UseImplementation use_implem
         }
     }
 
-#if defined(ENABLE_X86_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
+#if defined(ENABLE_SSE41) && defined(ENABLE_X86_SHANI) && !defined(BUILD_BITCOIN_INTERNAL)
     if (have_x86_shani) {
         Transform = sha256_x86_shani::Transform;
         TransformD64 = TransformD64Wrapper<sha256_x86_shani::Transform>;

diff --git a/src/crypto/sha256_x86_shani.cpp b/src/crypto/sha256_x86_shani.cpp
@@ -6,7 +6,7 @@
 // Written and placed in public domain by Jeffrey Walton.
 // Based on code from Intel, and by Sean Gulley for the miTLS project.
 
-#ifdef ENABLE_X86_SHANI
+#if defined(ENABLE_SSE41) && defined(ENABLE_X86_SHANI)
 
 #include <stdint.h>
 #include <immintrin.h>