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fixed_intrin_sse[23].c : Simplify XMM -> int64 conversion.

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Patch-from: lvqcl <lvqcl.mail@gmail.com>
This commit is contained in:
Erik de Castro Lopo
2014-09-18 21:39:36 +10:00
parent ed530f6a4a
commit 4fa58808df
2 changed files with 16 additions and 42 deletions
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29
src/libFLAC/fixed_intrin_sse2.c
View File

@@ -47,22 +47,9 @@
#include "FLAC/assert.h"
#ifdef FLAC__CPU_IA32
union zz_cvt
{
int64_t i64;
int32_t i32[2];
};
FLAC__SSE_TARGET("sse2")
static inline int64_t _zz_cvtsi128_si64(__m128i a)
{
union zz_cvt z;
z.i32[0] = _mm_cvtsi128_si32(a);
z.i32[1] = _mm_cvtsi128_si32(_mm_srli_si128(a, 4));
return z.i64;
}
#define _mm_cvtsi128_si64 _zz_cvtsi128_si64
#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
#else
#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
#endif
FLAC__SSE_TARGET("sse2")
@@ -212,13 +199,13 @@ unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 d
}
}
total_error_0 = _mm_cvtsi128_si64(total_err0);
total_error_4 = _mm_cvtsi128_si64(total_err3);
total_error_2 = _mm_cvtsi128_si64(total_err1);
m128i_to_i64(total_error_0, total_err0);
m128i_to_i64(total_error_4, total_err3);
m128i_to_i64(total_error_2, total_err1);
total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
total_error_3 = _mm_cvtsi128_si64(total_err3);
total_error_1 = _mm_cvtsi128_si64(total_err1);
m128i_to_i64(total_error_3, total_err3);
m128i_to_i64(total_error_1, total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))

29
src/libFLAC/fixed_intrin_ssse3.c
View File

@@ -47,22 +47,9 @@
#include "FLAC/assert.h"
#ifdef FLAC__CPU_IA32
union zz_cvt
{
int64_t i64;
int32_t i32[2];
};
FLAC__SSE_TARGET("sse2")
static inline int64_t _zz_cvtsi128_si64(__m128i a)
{
union zz_cvt z;
z.i32[0] = _mm_cvtsi128_si32(a);
z.i32[1] = _mm_cvtsi128_si32(_mm_srli_si128(a, 4));
return z.i64;
}
#define _mm_cvtsi128_si64 _zz_cvtsi128_si64
#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
#else
#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
#endif
FLAC__SSE_TARGET("ssse3")
@@ -200,13 +187,13 @@ unsigned FLAC__fixed_compute_best_predictor_wide_intrin_ssse3(const FLAC__int32
}
}
total_error_0 = _mm_cvtsi128_si64(total_err0);
total_error_4 = _mm_cvtsi128_si64(total_err3);
total_error_2 = _mm_cvtsi128_si64(total_err1);
m128i_to_i64(total_error_0, total_err0);
m128i_to_i64(total_error_4, total_err3);
m128i_to_i64(total_error_2, total_err1);
total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3
total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1
total_error_3 = _mm_cvtsi128_si64(total_err3);
total_error_1 = _mm_cvtsi128_si64(total_err1);
m128i_to_i64(total_error_3, total_err3);
m128i_to_i64(total_error_1, total_err1);
/* prefer higher order */
if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))