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add WebPMemToInt32

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and use it with calls to _mm_cvtsi32_si128 and _mm_set_epi32; this calls
WebPMemToUint32, but corrects the type to avoid runtime warnings with
clang -fsanitize=integer of the form:

implicit conversion from type 'uint32_t' (aka 'unsigned int') of value
2155905152 (32-bit, unsigned) to type 'int' changed the value to
-2139062144 (32-bit, signed)

Bug: b/229626362
Change-Id: I50101ba2b46dfaa852f02d46830f3511c80b02d9
This commit is contained in:
James Zern
2022-07-28 19:33:44 -07:00
parent b4994eaa6d
commit 4f402f34a1
5 changed files with 25 additions and 20 deletions
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2
src/dsp/dec_sse41.c
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@ -23,7 +23,7 @@ static void HE16_SSE41(uint8_t* dst) { // horizontal
int j;
const __m128i kShuffle3 = _mm_set1_epi8(3);
for (j = 16; j > 0; --j) {
const __m128i in = _mm_cvtsi32_si128(WebPMemToUint32(dst - 4));
const __m128i in = _mm_cvtsi32_si128(WebPMemToInt32(dst - 4));
const __m128i values = _mm_shuffle_epi8(in, kShuffle3);
_mm_storeu_si128((__m128i*)dst, values);
dst += BPS;