From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-ppc@nongnu.org, jniethe5@gmail.com
Subject: [PATCH v3 00/14] tcg/ppc: direct branching, power9, power10
Date: Tue, 15 Aug 2023 12:57:27 -0700 [thread overview]
Message-ID: <20230815195741.8325-1-richard.henderson@linaro.org> (raw)
Supercedes: 20230808030250.50602-1-richard.henderson@linaro.org
Supercedes: 20230815050117.34731-1-jniethe5@gmail.com
Build on Jordan's patch to allow direct branching and USE_REG_TB
to co-exist. Use the power9 addpcis wherever pc-relative addrs
might be handy. Merge in my power10 patches for prefixed insns.
Finish up with an RFC to disable TCG_REG_TB for power9+, when
pc-relative code sequences exist. I've only lightly tested this,
and it seems to increase code size by a few insns per TB. It
really depends on how much we end up using the constant pool.
What is needed is to determine if !TCG_REG_TB helps. If it doesn't,
then some of these patches could be dropped as unreachable.
r~
Jordan Niethe (1):
tcg/ppc: Enable direct branching tcg_out_goto_tb with TCG_REG_TB
Richard Henderson (13):
tcg/ppc: Untabify tcg-target.c.inc
tcg: Add tcg_out_tb_start backend hook
tcg/ppc: Reinterpret tb-relative to TB+4
tcg/ppc: Use ADDPCIS in tcg_out_tb_start
tcg/ppc: Use ADDPCIS in tcg_out_movi_int
tcg/ppc: Use ADDPCIS for the constant pool
tcg/ppc: Use ADDPCIS in tcg_out_goto_tb
tcg/ppc: Use PADDI in tcg_out_movi
tcg/ppc: Use prefixed instructions in tcg_out_mem_long
tcg/ppc: Use PLD in tcg_out_movi for constant pool
tcg/ppc: Use prefixed instructions in tcg_out_dupi_vec
tcg/ppc: Use PLD in tcg_out_goto_tb
RFC tcg/ppc: Disable TCG_REG_TB for Power9/Power10
tcg/tcg.c | 3 +
tcg/aarch64/tcg-target.c.inc | 5 +
tcg/arm/tcg-target.c.inc | 5 +
tcg/i386/tcg-target.c.inc | 5 +
tcg/loongarch64/tcg-target.c.inc | 5 +
tcg/mips/tcg-target.c.inc | 5 +
tcg/ppc/tcg-target.c.inc | 280 ++++++++++++++++++++++++++-----
tcg/riscv/tcg-target.c.inc | 5 +
tcg/s390x/tcg-target.c.inc | 5 +
tcg/sparc64/tcg-target.c.inc | 5 +
tcg/tci/tcg-target.c.inc | 5 +
11 files changed, 288 insertions(+), 40 deletions(-)
--
2.34.1
next reply other threads:[~2023-08-15 19:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-15 19:57 Richard Henderson [this message]
2023-08-15 19:57 ` [PATCH v3 01/14] tcg/ppc: Untabify tcg-target.c.inc Richard Henderson
2023-08-15 19:57 ` [PATCH v3 02/14] tcg: Add tcg_out_tb_start backend hook Richard Henderson
2023-08-15 19:57 ` [PATCH v3 03/14] tcg/ppc: Enable direct branching tcg_out_goto_tb with TCG_REG_TB Richard Henderson
2023-08-15 19:57 ` [PATCH v3 04/14] tcg/ppc: Reinterpret tb-relative to TB+4 Richard Henderson
2023-08-15 19:57 ` [PATCH v3 05/14] tcg/ppc: Use ADDPCIS in tcg_out_tb_start Richard Henderson
2023-08-23 9:39 ` Jordan Niethe
2023-08-23 17:10 ` Richard Henderson
2023-08-15 19:57 ` [PATCH v3 06/14] tcg/ppc: Use ADDPCIS in tcg_out_movi_int Richard Henderson
2023-08-15 19:57 ` [PATCH v3 07/14] tcg/ppc: Use ADDPCIS for the constant pool Richard Henderson
2023-08-15 19:57 ` [PATCH v3 08/14] tcg/ppc: Use ADDPCIS in tcg_out_goto_tb Richard Henderson
2023-08-15 19:57 ` [PATCH v3 09/14] tcg/ppc: Use PADDI in tcg_out_movi Richard Henderson
2023-08-15 19:57 ` [PATCH v3 10/14] tcg/ppc: Use prefixed instructions in tcg_out_mem_long Richard Henderson
2023-08-15 19:57 ` [PATCH v3 11/14] tcg/ppc: Use PLD in tcg_out_movi for constant pool Richard Henderson
2023-08-15 19:57 ` [PATCH v3 12/14] tcg/ppc: Use prefixed instructions in tcg_out_dupi_vec Richard Henderson
2023-08-15 19:57 ` [PATCH v3 13/14] tcg/ppc: Use PLD in tcg_out_goto_tb Richard Henderson
2023-08-15 19:57 ` [PATCH v3 14/14] RFC tcg/ppc: Disable TCG_REG_TB for Power9/Power10 Richard Henderson
2023-09-15 4:19 ` Jordan Niethe
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