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[PATCH 9/9] target/mips: Optimize regnames[] arrays
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH 9/9] target/mips: Optimize regnames[] arrays |
Date: |
Thu, 17 Jun 2021 19:43:23 +0200 |
Since all entries are no more than 3/4/6 bytes (including nul
terminator), can save space and pie runtime relocations by
declaring regnames[] as array of 3/4/6 const char.
Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/internal.h | 2 +-
target/mips/cpu.c | 2 +-
target/mips/tcg/msa_translate.c | 2 +-
target/mips/tcg/mxu_translate.c | 4 ++--
target/mips/tcg/translate.c | 4 ++--
5 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/target/mips/internal.h b/target/mips/internal.h
index 18d5da64a57..eecdd101169 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -74,7 +74,7 @@ struct mips_def_t {
int32_t SAARP;
};
-extern const char regnames[32][4];
+extern const char regnames[32][3];
extern const char fregnames[32][4];
extern const struct mips_def_t mips_defs[];
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 96236abc006..d426918291a 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -35,7 +35,7 @@
#include "qapi/qapi-commands-machine-target.h"
#include "fpu_helper.h"
-const char regnames[32][4] = {
+const char regnames[32][3] = {
"r0", "at", "v0", "v1", "a0", "a1", "a2", "a3",
"t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c
index b3b06352bf2..a2f7d6a1e08 100644
--- a/target/mips/tcg/msa_translate.c
+++ b/target/mips/tcg/msa_translate.c
@@ -255,7 +255,7 @@ enum {
OPC_BINSRI_df = (0x7 << 23) | OPC_MSA_BIT_09,
};
-static const char * const msaregnames[] = {
+static const char msaregnames[][6] = {
"w0.d0", "w0.d1", "w1.d0", "w1.d1",
"w2.d0", "w2.d1", "w3.d0", "w3.d1",
"w4.d0", "w4.d1", "w5.d0", "w5.d1",
diff --git a/target/mips/tcg/mxu_translate.c b/target/mips/tcg/mxu_translate.c
index f70a8ca59f4..e336518cdea 100644
--- a/target/mips/tcg/mxu_translate.c
+++ b/target/mips/tcg/mxu_translate.c
@@ -447,9 +447,9 @@ enum {
static TCGv mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1];
static TCGv mxu_CR;
-static const char * const mxuregnames[] = {
+static const char mxuregnames[][4] = {
"XR1", "XR2", "XR3", "XR4", "XR5", "XR6", "XR7", "XR8",
- "XR9", "XR10", "XR11", "XR12", "XR13", "XR14", "XR15", "MXU_CR",
+ "XR9", "XR10", "XR11", "XR12", "XR13", "XR14", "XR15", "XCR",
};
void mxu_translate_init(void)
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index 5d571d83c54..255f97fe9c1 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -1281,11 +1281,11 @@ TCGv_i64 fpu_f64[32];
#define DISAS_STOP DISAS_TARGET_0
#define DISAS_EXIT DISAS_TARGET_1
-static const char * const regnames_HI[] = {
+static const char regnames_HI[][4] = {
"HI0", "HI1", "HI2", "HI3",
};
-static const char * const regnames_LO[] = {
+static const char regnames_LO[][4] = {
"LO0", "LO1", "LO2", "LO3",
};
--
2.31.1
- [PATCH 5/9] target/mips: Restrict some system specific declarations to sysemu, (continued)
- [PATCH 5/9] target/mips: Restrict some system specific declarations to sysemu, Philippe Mathieu-Daudé, 2021/06/17
- [PATCH 6/9] target/mips: Remove SmartMIPS / MDMX unuseful comments, Philippe Mathieu-Daudé, 2021/06/17
- [PATCH 7/9] target/mips: Remove microMIPS BPOSGE32 / BPOSGE64 unuseful cases, Philippe Mathieu-Daudé, 2021/06/17
- [PATCH 8/9] target/mips: Constify host_to_mips_errno[], Philippe Mathieu-Daudé, 2021/06/17
- [PATCH 9/9] target/mips: Optimize regnames[] arrays,
Philippe Mathieu-Daudé <=
- Re: [PATCH 0/9] target/mips: Various fixes & cleanups, Philippe Mathieu-Daudé, 2021/06/19