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target/mips: Optimize CPU/FPU regnames[] arrays

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Since all entries are no more than 4 bytes (including nul
terminator), can save space and pie runtime relocations by
declaring regnames[] as array of 4 const char.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210428170410.479308-6-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2021-04-18 23:41:10 +02:00
parent adbf1be325
commit 830b87ea25
3 changed files with 4 additions and 4 deletions
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2
target/mips/cpu.c
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@ -35,7 +35,7 @@
#include "qapi/qapi-commands-machine-target.h" #include "qapi/qapi-commands-machine-target.h"
#include "fpu_helper.h" #include "fpu_helper.h"
const char * const regnames[32] = { const char regnames[32][4] = {
"r0", "at", "v0", "v1", "a0", "a1", "a2", "a3", "r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",

2
target/mips/fpu.c
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@ -17,7 +17,7 @@ const FloatRoundMode ieee_rm[4] = {
float_round_down float_round_down
}; };
const char * const fregnames[32] = { const char fregnames[32][4] = {
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
"f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",

4
target/mips/internal.h
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@ -71,8 +71,8 @@ struct mips_def_t {
int32_t SAARP; int32_t SAARP;
}; };
extern const char * const regnames[32]; extern const char regnames[32][4];
extern const char * const fregnames[32]; extern const char fregnames[32][4];
extern const struct mips_def_t mips_defs[]; extern const struct mips_def_t mips_defs[];
extern const int mips_defs_number; extern const int mips_defs_number;