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captureSharpening(): let the compiler vectorize the last loop. Tested with gcc 10.2.0 and clang 10.0.1

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This commit is contained in:
Ingo Weyrich 2020-08-28 14:23:40 +02:00
parent a7971abfcf
commit 8f483496b2
1 changed files with 5 additions and 10 deletions
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15
rtengine/capturesharpening.cc
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@ -1160,17 +1160,12 @@ BENCHFUN
#pragma omp parallel for schedule(dynamic, 16)
#endif
for (int i = 0; i < H; ++i) {
int j = 0;
#ifdef __SSE2__
for (; j < W - 3; j += 4) {
const vfloat factor = LVFU(YNew[i][j]) / vmaxf(LVFU(YOld[i][j]), F2V(0.00001f));
STVFU(red[i][j], LVFU(redVals[i][j]) * factor);
STVFU(green[i][j], LVFU(greenVals[i][j]) * factor);
STVFU(blue[i][j], LVFU(blueVals[i][j]) * factor);
}
#if defined(__clang__)
#pragma clang loop vectorize(assume_safety)
#elif defined(__GNUC__)
#pragma GCC ivdep
#endif
for (; j < W; ++j) {
for (int j = 0; j < W; ++j) {
const float factor = YNew[i][j] / std::max(YOld[i][j], 0.00001f);
red[i][j] = redVals[i][j] * factor;
green[i][j] = greenVals[i][j] * factor;