From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: zhiwei_liu@linux.alibaba.com, tangtiancheng.ttc@alibaba-inc.com,
philmd@linaro.org
Subject: [PATCH v2 00/18] tcg: Improve support for cmpsel_vec
Date: Wed, 11 Sep 2024 09:50:29 -0700 [thread overview]
Message-ID: <20240911165047.1035764-1-richard.henderson@linaro.org> (raw)
The patches to optimize cmp_vec and cmpsel_vec -- particularly
canonicalizing immediate operands -- are directed toward helping
the in flight tcg/riscv vector backend.
In order for that to happen, the i386, ppc and s390x backends
must be changed so that they do not rely upon choices made during
early expansion, before optimization changes things.
While I was looking at the issues i386 was attempting to solve
during early expansion, I realized that avx512 does not have the
same issues. Expansion of vector cmp and cmpsel become trivial.
Changes for v2:
- Update ppc and s390x backends.
- Fix avx512 tsteq cut-and-paste error (philmd).
r~
Richard Henderson (18):
tcg: Export vec_gen_6
tcg/i386: Split out tcg_out_vex_modrm_type
tcg/i386: Do not expand cmp_vec early
tcg/i386: Do not expand cmpsel_vec early
tcg/ppc: Do not expand cmp_vec early
tcg/s390x: Do not expand cmp_vec early
tcg/optimize: Fold movcond with true and false values identical
tcg/optimize: Optimize cmp_vec and cmpsel_vec
tcg/optimize: Optimize bitsel_vec
tcg/i386: Optimize cmpsel with constant 0 operand 3.
tcg/i386: Implement cmp_vec with avx512 insns
tcg/i386: Add predicate parameters to tcg_out_evex_opc
tcg/i386: Implement cmpsel_vec with avx512 insns
tcg/i386: Implement vector TST{EQ,NE} for avx512
tcg/ppc: Implement cmpsel_vec
tcg/ppc: Optimize cmpsel with constant 0/-1 arguments
tcg/s390x: Implement cmpsel_vec
tcg/s390x: Optimize cmpsel with constant 0/-1 arguments
tcg/i386/tcg-target-con-set.h | 1 +
tcg/i386/tcg-target-con-str.h | 1 +
tcg/i386/tcg-target.h | 4 +-
tcg/i386/tcg-target.opc.h | 1 -
tcg/ppc/tcg-target-con-set.h | 1 +
tcg/ppc/tcg-target.h | 2 +-
tcg/s390x/tcg-target-con-set.h | 2 +
tcg/s390x/tcg-target-con-str.h | 1 +
tcg/s390x/tcg-target.h | 2 +-
tcg/tcg-internal.h | 2 +
tcg/optimize.c | 99 +++++++
tcg/tcg-op-vec.c | 4 +-
tcg/i386/tcg-target.c.inc | 488 +++++++++++++++++++++------------
tcg/ppc/tcg-target.c.inc | 254 +++++++++++------
tcg/s390x/tcg-target.c.inc | 195 +++++++------
15 files changed, 695 insertions(+), 362 deletions(-)
--
2.43.0
next reply other threads:[~2024-09-11 16:52 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-11 16:50 Richard Henderson [this message]
2024-09-11 16:50 ` [PATCH v2 01/18] tcg: Export vec_gen_6 Richard Henderson
2024-09-11 16:50 ` [PATCH v2 02/18] tcg/i386: Split out tcg_out_vex_modrm_type Richard Henderson
2024-09-11 16:50 ` [PATCH v2 03/18] tcg/i386: Do not expand cmp_vec early Richard Henderson
2024-09-11 16:50 ` [PATCH v2 04/18] tcg/i386: Do not expand cmpsel_vec early Richard Henderson
2024-09-11 16:50 ` [PATCH v2 05/18] tcg/ppc: Do not expand cmp_vec early Richard Henderson
2024-09-11 16:50 ` [PATCH v2 06/18] tcg/s390x: " Richard Henderson
2024-09-11 16:50 ` [PATCH v2 07/18] tcg/optimize: Fold movcond with true and false values identical Richard Henderson
2024-09-11 16:50 ` [PATCH v2 08/18] tcg/optimize: Optimize cmp_vec and cmpsel_vec Richard Henderson
2024-09-11 16:50 ` [PATCH v2 09/18] tcg/optimize: Optimize bitsel_vec Richard Henderson
2024-09-11 16:50 ` [PATCH v2 10/18] tcg/i386: Optimize cmpsel with constant 0 operand 3 Richard Henderson
2024-09-11 16:50 ` [PATCH v2 11/18] tcg/i386: Implement cmp_vec with avx512 insns Richard Henderson
2024-09-11 16:50 ` [PATCH v2 12/18] tcg/i386: Add predicate parameters to tcg_out_evex_opc Richard Henderson
2024-09-11 16:50 ` [PATCH v2 13/18] tcg/i386: Implement cmpsel_vec with avx512 insns Richard Henderson
2024-09-11 16:50 ` [PATCH v2 14/18] tcg/i386: Implement vector TST{EQ,NE} for avx512 Richard Henderson
2024-09-12 6:04 ` [PATCH v2 14/18] tcg/i386: Implement vector TST{EQ, NE} " Philippe Mathieu-Daudé
2024-09-11 16:50 ` [PATCH v2 15/18] tcg/ppc: Implement cmpsel_vec Richard Henderson
2024-09-11 16:50 ` [PATCH v2 16/18] tcg/ppc: Optimize cmpsel with constant 0/-1 arguments Richard Henderson
2024-09-11 16:50 ` [PATCH v2 17/18] tcg/s390x: Implement cmpsel_vec Richard Henderson
2024-09-11 16:50 ` [PATCH v2 18/18] tcg/s390x: Optimize cmpsel with constant 0/-1 arguments Richard Henderson
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