constify ge_precomp
the tables in precomp_data.h can be const, since they are never written to. Only one argument, to cmov(), needs to be constified to support this. This moves 30 kbyte from .data to .text; for my arm-none-eabi target, % arm-none-eabi-size ge.o.before text data bss dec hex filename 2772 31680 0 34452 8694 ge.o % arm-none-eabi-size ge.o text data bss dec hex filename 34452 0 0 34452 8694 ge.o
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src/ge.c
2
src/ge.c
@ -346,7 +346,7 @@ static unsigned char negative(signed char b) {
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return (unsigned char) x;
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return (unsigned char) x;
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}
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}
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static void cmov(ge_precomp *t, ge_precomp *u, unsigned char b) {
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static void cmov(ge_precomp *t, const ge_precomp *u, unsigned char b) {
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fe_cmov(t->yplusx, u->yplusx, b);
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fe_cmov(t->yplusx, u->yplusx, b);
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fe_cmov(t->yminusx, u->yminusx, b);
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fe_cmov(t->yminusx, u->yminusx, b);
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fe_cmov(t->xy2d, u->xy2d, b);
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fe_cmov(t->xy2d, u->xy2d, b);
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@ -1,4 +1,4 @@
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static ge_precomp Bi[8] = {
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static const ge_precomp Bi[8] = {
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{
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{
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{ 25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605 },
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{ 25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605 },
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{ -12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378 },
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{ -12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378 },
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@ -43,7 +43,7 @@ static ge_precomp Bi[8] = {
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/* base[i][j] = (j+1)*256^i*B */
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/* base[i][j] = (j+1)*256^i*B */
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static ge_precomp base[32][8] = {
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static const ge_precomp base[32][8] = {
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{
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{
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{
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{
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{ 25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605 },
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{ 25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605 },
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