regularize options which control size/speed trade
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
@@ -385,7 +385,7 @@ int mainGtU(
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* but speeds up compression 10% overall
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*/
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#if CONFIG_BZIP2_FEATURE_SPEED >= 1
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#if CONFIG_BZIP2_FAST >= 1
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#define TIMES_8(code) \
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code; code; code; code; \
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@@ -496,7 +496,7 @@ void mainSimpleSort(uint32_t* ptr,
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i++;
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/* 1.5% overall speedup, +290 bytes */
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#if CONFIG_BZIP2_FEATURE_SPEED >= 3
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#if CONFIG_BZIP2_FAST >= 3
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/*-- copy 2 --*/
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if (i > hi) break;
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v = ptr[i];
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@@ -750,7 +750,7 @@ void mainSort(EState* state,
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j = block[0] << 8;
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i = nblock - 1;
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/* 3%, +300 bytes */
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#if CONFIG_BZIP2_FEATURE_SPEED >= 2
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#if CONFIG_BZIP2_FAST >= 2
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for (; i >= 3; i -= 4) {
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quadrant[i] = 0;
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j = (j >> 8) | (((uint16_t)block[i]) << 8);
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@@ -787,7 +787,7 @@ void mainSort(EState* state,
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s = block[0] << 8;
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i = nblock - 1;
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#if CONFIG_BZIP2_FEATURE_SPEED >= 2
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#if CONFIG_BZIP2_FAST >= 2
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for (; i >= 3; i -= 4) {
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s = (s >> 8) | (block[i] << 8);
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j = ftab[s] - 1;
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@@ -183,7 +183,7 @@ typedef struct EState {
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/* stack-saving measures: these can be local, but they are too big */
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int32_t sendMTFValues__code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
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int32_t sendMTFValues__rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
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#if CONFIG_BZIP2_FEATURE_SPEED >= 5
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#if CONFIG_BZIP2_FAST >= 5
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/* second dimension: only 3 needed; 4 makes index calculations faster */
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uint32_t sendMTFValues__len_pack[BZ_MAX_ALPHA_SIZE][4];
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#endif
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@@ -61,7 +61,7 @@ void bsFinishWrite(EState* s)
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/*---------------------------------------------------*/
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static
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/* Helps only on level 5, on other levels hurts. ? */
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#if CONFIG_BZIP2_FEATURE_SPEED >= 5
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#if CONFIG_BZIP2_FAST >= 5
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ALWAYS_INLINE
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#endif
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void bsW(EState* s, int32_t n, uint32_t v)
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@@ -331,7 +331,7 @@ void sendMTFValues(EState* s)
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for (v = 0; v < alphaSize; v++)
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s->rfreq[t][v] = 0;
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#if CONFIG_BZIP2_FEATURE_SPEED >= 5
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#if CONFIG_BZIP2_FAST >= 5
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/*
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* Set up an auxiliary length table which is used to fast-track
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* the common case (nGroups == 6).
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@@ -361,7 +361,7 @@ void sendMTFValues(EState* s)
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*/
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for (t = 0; t < nGroups; t++)
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cost[t] = 0;
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#if CONFIG_BZIP2_FEATURE_SPEED >= 5
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#if CONFIG_BZIP2_FAST >= 5
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if (nGroups == 6 && 50 == ge-gs+1) {
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/*--- fast track the common case ---*/
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register uint32_t cost01, cost23, cost45;
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@@ -420,7 +420,7 @@ void sendMTFValues(EState* s)
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* Increment the symbol frequencies for the selected table.
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*/
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/* 1% faster compress. +800 bytes */
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#if CONFIG_BZIP2_FEATURE_SPEED >= 4
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#if CONFIG_BZIP2_FAST >= 4
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if (nGroups == 6 && 50 == ge-gs+1) {
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/*--- fast track the common case ---*/
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#define BZ_ITUR(nn) s->rfreq[bt][mtfv[gs + (nn)]]++
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@@ -48,7 +48,7 @@ in the file LICENSE.
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/* 90 bytes, 0.3% of overall compress speed */
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#if CONFIG_BZIP2_FEATURE_SPEED >= 1
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#if CONFIG_BZIP2_FAST >= 1
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/* macro works better than inline (gcc 4.2.1) */
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#define DOWNHEAP1(heap, weight, Heap) \
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