From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Richard Henderson" <richard.henderson@linaro.org>
Subject: [PULL 15/33] target/ppc: Use tcg_constant_tl() instead of tcg_gen_movi_tl()
Date: Tue, 15 Oct 2024 12:44:24 -0300 [thread overview]
Message-ID: <20241015154443.71763-16-philmd@linaro.org> (raw)
In-Reply-To: <20241015154443.71763-1-philmd@linaro.org>
Directly use tcg_constant_tl() for constant integer,
this save a call to tcg_gen_movi_tl() and a temp register.
Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241004202621.4321-4-philmd@linaro.org>
---
target/ppc/translate.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 71513ba9646..7689b2ac2e1 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -1588,16 +1588,13 @@ static opc_handler_t invalid_handler = {
static inline void gen_op_cmp(TCGv arg0, TCGv arg1, int s, int crf)
{
TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
TCGv_i32 t = tcg_temp_new_i32();
- tcg_gen_movi_tl(t0, CRF_EQ);
- tcg_gen_movi_tl(t1, CRF_LT);
tcg_gen_movcond_tl((s ? TCG_COND_LT : TCG_COND_LTU),
- t0, arg0, arg1, t1, t0);
- tcg_gen_movi_tl(t1, CRF_GT);
+ t0, arg0, arg1,
+ tcg_constant_tl(CRF_LT), tcg_constant_tl(CRF_EQ));
tcg_gen_movcond_tl((s ? TCG_COND_GT : TCG_COND_GTU),
- t0, arg0, arg1, t1, t0);
+ t0, arg0, arg1, tcg_constant_tl(CRF_GT), t0);
tcg_gen_trunc_tl_i32(t, t0);
tcg_gen_trunc_tl_i32(cpu_crf[crf], cpu_so);
@@ -2974,8 +2971,8 @@ static void gen_fetch_inc_conditional(DisasContext *ctx, MemOp memop,
tcg_gen_qemu_st_tl(u, EA, ctx->mem_idx, memop);
/* RT = (t != t2 ? t : u = 1<<(s*8-1)) */
- tcg_gen_movi_tl(u, 1 << (memop_size(memop) * 8 - 1));
- tcg_gen_movcond_tl(cond, cpu_gpr[rD(ctx->opcode)], t, t2, t, u);
+ tcg_gen_movcond_tl(cond, cpu_gpr[rD(ctx->opcode)], t, t2, t,
+ tcg_constant_tl(1 << (memop_size(memop) * 8 - 1)));
}
static void gen_ld_atomic(DisasContext *ctx, MemOp memop)
--
2.45.2
next prev parent reply other threads:[~2024-10-15 15:47 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-15 15:44 [PULL 00/33] Endianness cleanup patches for 2024-10-15 Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 01/33] qemu/bswap: Undefine CPU_CONVERT() once done Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 02/33] exec/tswap: Massage target_needs_bswap() definition Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 03/33] exec/memop: Remove unused memop_big_endian() helper Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 04/33] target/hexagon: Replace ldtul_p() -> ldl_p() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 05/33] target/alpha: Replace ldtul_p() -> ldq_p() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 06/33] gdbstub/helpers: Introduce ldtul_$endian_p() helpers Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 07/33] target/alpha: Use explicit little-endian LD/ST API Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 08/33] target/hexagon: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 09/33] hw/i386: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 10/33] target/avr: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 11/33] linux-user/i386: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 12/33] target/loongarch: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 13/33] target/tricore: " Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 14/33] target/tricore: Use tcg_constant_tl() instead of tcg_gen_movi_tl() Philippe Mathieu-Daudé
2024-10-15 15:44 ` Philippe Mathieu-Daudé [this message]
2024-10-15 15:44 ` [PULL 16/33] hw/xtensa/xtfpga: Remove TARGET_BIG_ENDIAN #ifdef'ry Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 17/33] target/mips: Declare mips_env_is_bigendian() in 'internal.h' Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 18/33] target/mips: Rename cpu_is_bigendian() -> disas_is_bigendian() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 19/33] target/mips: Introduce mo_endian_env() helper Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 20/33] target/mips: Replace MO_TE by mo_endian_env() in get_pte() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 21/33] target/mips: Convert mips16e decr_and_load/store() macros to functions Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 22/33] target/mips: Factor mo_endian_rev() out of MXU code Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 23/33] target/mips: Explode MO_TExx -> MO_TE | MO_xx Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 24/33] target/mips: Rename unused sysemu argument of OP_LD_ATOMIC() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 25/33] target/mips: Remove unused MEMOP_IDX() macro Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 26/33] target/mips: Introduce mo_endian() helper Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 27/33] target/mips: Replace MO_TE by mo_endian() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 28/33] target/mips: Have gen_addiupc() expand $pc during translation Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 29/33] target/mips: Use gen_op_addr_addi() when possible Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 30/33] target/mips: Use tcg_constant_tl() instead of tcg_gen_movi_tl() Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 31/33] target/mips: Expose MIPSCPU::is_big_endian property Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 32/33] hw/mips/cps: Set the vCPU 'cpu-big-endian' property Philippe Mathieu-Daudé
2024-10-15 15:44 ` [PULL 33/33] hw/mips: Have mips_cpu_create_with_clock() take an endianness argument Philippe Mathieu-Daudé
2024-10-17 11:42 ` [PULL 00/33] Endianness cleanup patches for 2024-10-15 Peter Maydell
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