Fix build on x32 with SSE 4.2

1 files changed, 19 insertions, 1 deletions

diff --git a/src/zix/digest.c b/src/zix/digest.c
index 2ac1715..03a1210 100644
--- a/src/zix/digest.c
+++ b/src/zix/digest.c
@@ -38,6 +38,7 @@ zix_digest_add(uint32_t hash, const void* const buf, const size_t len)
 {
 	const uint8_t* str = (const uint8_t*)buf;
 
+#ifdef __x86_64__
 	for (size_t i = 0; i < (len / sizeof(uint64_t)); ++i) {
 		hash = (uint32_t)_mm_crc32_u64(hash, *(const uint64_t*)str);
 		str += sizeof(uint64_t);
@@ -46,6 +47,12 @@ zix_digest_add(uint32_t hash, const void* const buf, const size_t len)
 		hash = _mm_crc32_u32(hash, *(const uint32_t*)str);
 		str += sizeof(uint32_t);
 	}
+#else
+	for (size_t i = 0; i < (len / sizeof(uint32_t)); ++i) {
+		hash = _mm_crc32_u32(hash, *(const uint32_t*)str);
+		str += sizeof(uint32_t);
+	}
+#endif
 	if (len & sizeof(uint16_t)) {
 		hash = _mm_crc32_u16(hash, *(const uint16_t*)str);
 		str += sizeof(uint16_t);
@@ -63,6 +70,7 @@ zix_digest_add_64(uint32_t hash, const void* const buf, const size_t len)
 	assert((uintptr_t)buf % sizeof(uint64_t) == 0);
 	assert(len % sizeof(uint64_t) == 0);
 
+#ifdef __x86_64__
 	const uint64_t* ptr = (const uint64_t*)buf;
 
 	for (size_t i = 0; i < (len / sizeof(uint64_t)); ++i) {
@@ -71,12 +79,22 @@ zix_digest_add_64(uint32_t hash, const void* const buf, const size_t len)
 	}
 
 	return hash;
+#else
+	const uint32_t* ptr = (const uint32_t*)buf;
+
+	for (size_t i = 0; i < (len / sizeof(uint32_t)); ++i) {
+		hash = _mm_crc32_u32(hash, *ptr);
+		++ptr;
+	}
+
+	return hash;
+#endif
 }
 
 uint32_t
 zix_digest_add_ptr(const uint32_t hash, const void* const ptr)
 {
-#if UINTPTR_MAX == UINT64_MAX
+#ifdef __x86_64__
 	return (uint32_t)_mm_crc32_u64(hash, (uintptr_t)ptr);
 #else
 	return _mm_crc32_u32(hash, (uintptr_t)ptr);