Remove redundant BMI2 check when

pps83 · pps83 · commit acf9a223cbea · 2025-01-20T12:35:47.000+02:00
`ZSTD_ENABLE_ASM_X86_64_BMI2` already implies BMI2 (by it's name, and by the way it tests defines
diff --git a/lib/decompress/huf_decompress.c b/lib/decompress/huf_decompress.c
@@ -913,7 +913,7 @@ static size_t HUF_decompress4X1_usingDTable_internal(void* dst, size_t dstSize,
     }
 #endif
 
-#if ZSTD_ENABLE_ASM_X86_64_BMI2 && defined(__BMI2__)
+#if ZSTD_ENABLE_ASM_X86_64_BMI2
     if (!(flags & HUF_flags_disableAsm)) {
         loopFn = HUF_decompress4X1_usingDTable_internal_fast_asm_loop;
     }
@@ -1735,7 +1735,7 @@ static size_t HUF_decompress4X2_usingDTable_internal(void* dst, size_t dstSize,
     }
 #endif
 
-#if ZSTD_ENABLE_ASM_X86_64_BMI2 && defined(__BMI2__)
+#if ZSTD_ENABLE_ASM_X86_64_BMI2
     if (!(flags & HUF_flags_disableAsm)) {
         loopFn = HUF_decompress4X2_usingDTable_internal_fast_asm_loop;
     }

Original file line number	Diff line number	Diff line change
`@@ -913,7 +913,7 @@ static size_t HUF_decompress4X1_usingDTable_internal(void* dst, size_t dstSize,`
`913`	`913`	`}`
`914`	`914`	`#endif`
`915`	`915`
`916`		`-#if ZSTD_ENABLE_ASM_X86_64_BMI2 && defined(__BMI2__)`
	`916`	`+#if ZSTD_ENABLE_ASM_X86_64_BMI2`
`917`	`917`	`if (!(flags & HUF_flags_disableAsm)) {`
`918`	`918`	`loopFn = HUF_decompress4X1_usingDTable_internal_fast_asm_loop;`
`919`	`919`	`}`
`@@ -1735,7 +1735,7 @@ static size_t HUF_decompress4X2_usingDTable_internal(void* dst, size_t dstSize,`
`1735`	`1735`	`}`
`1736`	`1736`	`#endif`
`1737`	`1737`
`1738`		`-#if ZSTD_ENABLE_ASM_X86_64_BMI2 && defined(__BMI2__)`
	`1738`	`+#if ZSTD_ENABLE_ASM_X86_64_BMI2`
`1739`	`1739`	`if (!(flags & HUF_flags_disableAsm)) {`
`1740`	`1740`	`loopFn = HUF_decompress4X2_usingDTable_internal_fast_asm_loop;`
`1741`	`1741`	`}`