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From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Aleksandar Rikalo" <aleksandar.rikalo@syrmia.com>,
	"Huacai Chen" <chenhuacai@kernel.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Aurelien Jarno" <aurelien@aurel32.net>
Subject: [PATCH v2 05/29] target/mips: Optimize CPU/FPU regnames[] arrays
Date: Mon, 19 Apr 2021 00:50:34 +0200	[thread overview]
Message-ID: <20210418225058.1257014-6-f4bug@amsat.org> (raw)
In-Reply-To: <20210418225058.1257014-1-f4bug@amsat.org>

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>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 target/mips/internal.h | 4 ++--
 target/mips/cpu.c      | 2 +-
 target/mips/fpu.c      | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/mips/internal.h b/target/mips/internal.h
index a8644f754a6..37f54a8b3fc 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -71,8 +71,8 @@ struct mips_def_t {
     int32_t SAARP;
 };
 
-extern const char * const regnames[32];
-extern const char * const fregnames[32];
+extern const char regnames[32][4];
+extern const char fregnames[32][4];
 
 extern const struct mips_def_t mips_defs[];
 extern const int mips_defs_number;
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index f354d18aec4..ed9552ebeb7 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 * const regnames[32] = {
+const char regnames[32][4] = {
     "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/fpu.c b/target/mips/fpu.c
index 1447dba3fa3..c7c487c1f9f 100644
--- a/target/mips/fpu.c
+++ b/target/mips/fpu.c
@@ -17,7 +17,7 @@ const FloatRoundMode ieee_rm[4] = {
     float_round_down
 };
 
-const char * const fregnames[32] = {
+const char fregnames[32][4] = {
     "f0",  "f1",  "f2",  "f3",  "f4",  "f5",  "f6",  "f7",
     "f8",  "f9",  "f10", "f11", "f12", "f13", "f14", "f15",
     "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
-- 
2.26.3



  parent reply	other threads:[~2021-04-18 22:53 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-18 22:50 [PATCH v2 00/29] target/mips: Re-org to allow KVM-only builds Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 01/29] target/mips: Simplify meson TCG rules Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 02/29] target/mips: Move IEEE rounding mode array to new source file Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 03/29] target/mips: Move msa_reset() " Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 04/29] target/mips: Make CPU/FPU regnames[] arrays global Philippe Mathieu-Daudé
2021-04-18 22:50 ` Philippe Mathieu-Daudé [this message]
2021-04-18 22:50 ` [PATCH v2 06/29] target/mips: Restrict mips_cpu_dump_state() to cpu.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 07/29] target/mips: Turn printfpr() macro into a proper function Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 08/29] target/mips: Declare mips_cpu_set_error_pc() inlined in "internal.h" Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 09/29] target/mips: Extract load/store helpers to ldst_helper.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 10/29] meson: Introduce meson_user_arch source set for arch-specific user-mode Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 11/29] target/mips: Introduce tcg-internal.h for TCG specific declarations Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 12/29] target/mips: Add simple user-mode mips_cpu_do_interrupt() Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 13/29] target/mips: Add simple user-mode mips_cpu_tlb_fill() Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 14/29] target/mips: Move cpu_signal_handler definition around Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 15/29] target/mips: Move sysemu specific files under sysemu/ subfolder Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 16/29] target/mips: Move physical addressing code to sysemu/physaddr.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 17/29] target/mips: Restrict cpu_mips_get_random() / update_pagemask() to TCG Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 18/29] target/mips: Move sysemu TCG-specific code to tcg/sysemu/ subfolder Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 19/29] target/mips: Restrict mmu_init() to TCG Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 20/29] target/mips: Move tlb_helper.c to tcg/sysemu/ Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 21/29] target/mips: Restrict CPUMIPSTLBContext::map_address() handlers scope Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 22/29] target/mips: Move Special opcodes to tcg/sysemu/special_helper.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 23/29] target/mips: Move helper_cache() " Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 24/29] target/mips: Move TLB management helpers to tcg/sysemu/tlb_helper.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 25/29] target/mips: Move exception management code to exception.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 26/29] target/mips: Move CP0 helpers to sysemu/cp0.c Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 27/29] target/mips: Move TCG source files under tcg/ sub directory Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 28/29] hw/mips: Restrict non-virtualized machines to TCG Philippe Mathieu-Daudé
2021-04-18 22:50 ` [PATCH v2 29/29] gitlab-ci: Add KVM mips64el cross-build jobs Philippe Mathieu-Daudé
2021-04-19 10:25   ` Thomas Huth
2021-04-18 23:03 ` [PATCH v2 00/29] target/mips: Re-org to allow KVM-only builds no-reply

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