regularize options which control size/speed trade

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2011-09-10 13:25:57 +02:00
parent 202a1b9284
commit 522041ee7b
17 changed files with 69 additions and 66 deletions

View File

@@ -385,7 +385,7 @@ int mainGtU(
* but speeds up compression 10% overall
*/
#if CONFIG_BZIP2_FEATURE_SPEED >= 1
#if CONFIG_BZIP2_FAST >= 1
#define TIMES_8(code) \
code; code; code; code; \
@@ -496,7 +496,7 @@ void mainSimpleSort(uint32_t* ptr,
i++;
/* 1.5% overall speedup, +290 bytes */
#if CONFIG_BZIP2_FEATURE_SPEED >= 3
#if CONFIG_BZIP2_FAST >= 3
/*-- copy 2 --*/
if (i > hi) break;
v = ptr[i];
@@ -750,7 +750,7 @@ void mainSort(EState* state,
j = block[0] << 8;
i = nblock - 1;
/* 3%, +300 bytes */
#if CONFIG_BZIP2_FEATURE_SPEED >= 2
#if CONFIG_BZIP2_FAST >= 2
for (; i >= 3; i -= 4) {
quadrant[i] = 0;
j = (j >> 8) | (((uint16_t)block[i]) << 8);
@@ -787,7 +787,7 @@ void mainSort(EState* state,
s = block[0] << 8;
i = nblock - 1;
#if CONFIG_BZIP2_FEATURE_SPEED >= 2
#if CONFIG_BZIP2_FAST >= 2
for (; i >= 3; i -= 4) {
s = (s >> 8) | (block[i] << 8);
j = ftab[s] - 1;

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@@ -183,7 +183,7 @@ typedef struct EState {
/* stack-saving measures: these can be local, but they are too big */
int32_t sendMTFValues__code [BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
int32_t sendMTFValues__rfreq[BZ_N_GROUPS][BZ_MAX_ALPHA_SIZE];
#if CONFIG_BZIP2_FEATURE_SPEED >= 5
#if CONFIG_BZIP2_FAST >= 5
/* second dimension: only 3 needed; 4 makes index calculations faster */
uint32_t sendMTFValues__len_pack[BZ_MAX_ALPHA_SIZE][4];
#endif

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@@ -61,7 +61,7 @@ void bsFinishWrite(EState* s)
/*---------------------------------------------------*/
static
/* Helps only on level 5, on other levels hurts. ? */
#if CONFIG_BZIP2_FEATURE_SPEED >= 5
#if CONFIG_BZIP2_FAST >= 5
ALWAYS_INLINE
#endif
void bsW(EState* s, int32_t n, uint32_t v)
@@ -331,7 +331,7 @@ void sendMTFValues(EState* s)
for (v = 0; v < alphaSize; v++)
s->rfreq[t][v] = 0;
#if CONFIG_BZIP2_FEATURE_SPEED >= 5
#if CONFIG_BZIP2_FAST >= 5
/*
* Set up an auxiliary length table which is used to fast-track
* the common case (nGroups == 6).
@@ -361,7 +361,7 @@ void sendMTFValues(EState* s)
*/
for (t = 0; t < nGroups; t++)
cost[t] = 0;
#if CONFIG_BZIP2_FEATURE_SPEED >= 5
#if CONFIG_BZIP2_FAST >= 5
if (nGroups == 6 && 50 == ge-gs+1) {
/*--- fast track the common case ---*/
register uint32_t cost01, cost23, cost45;
@@ -420,7 +420,7 @@ void sendMTFValues(EState* s)
* Increment the symbol frequencies for the selected table.
*/
/* 1% faster compress. +800 bytes */
#if CONFIG_BZIP2_FEATURE_SPEED >= 4
#if CONFIG_BZIP2_FAST >= 4
if (nGroups == 6 && 50 == ge-gs+1) {
/*--- fast track the common case ---*/
#define BZ_ITUR(nn) s->rfreq[bt][mtfv[gs + (nn)]]++

View File

@@ -48,7 +48,7 @@ in the file LICENSE.
/* 90 bytes, 0.3% of overall compress speed */
#if CONFIG_BZIP2_FEATURE_SPEED >= 1
#if CONFIG_BZIP2_FAST >= 1
/* macro works better than inline (gcc 4.2.1) */
#define DOWNHEAP1(heap, weight, Heap) \