From: Christophe Lyon <christophe.lyon.oss@gmail.com>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH v3 00/15] ARM/MVE use vectors of boolean for predicates
Date: Fri, 14 Jan 2022 14:18:00 +0100 [thread overview]
Message-ID: <CAKhMtSJN6ou6xbwQhN2b=Wvwz04cDm8ieCJxuBqd7b9Z7k9dQQ@mail.gmail.com> (raw)
In-Reply-To: <20220113145645.4077141-1-christophe.lyon@foss.st.com>
Hi,
I hadn't realized we are moving to stage 4 this week-end :-(
The PRs I'm fixing are P3, but without these fixes MVE support is badly
broken, so I think I would be really good to fix that before the buggy
version becomes part of an actual release.
Anyway I posted v1 of the patches during stage1, so it should still be OK
if they are accepted as-is ?
Thanks,
Christophe
On Thu, Jan 13, 2022 at 3:58 PM Christophe Lyon via Gcc-patches <
gcc-patches@gcc.gnu.org> wrote:
>
> This is v3 of this patch series, fixing issues I discovered before
> committing v2 (which had been approved).
>
> Thanks a lot to Richard Sandiford for his help.
>
> The changes v2 -> v3 are:
>
> Patch 4: Fix arm_hard_regno_nregs and CLASS_MAX_NREGS to support VPR.
>
> Patch 7: Changes to the underlying representation of vectors of
> booleans to account for the different expectations between AArch64/SVE
> and Arm/MVE.
>
> Patch 8: Re-use and extend existing thumb2_movhi* patterns instead of
> duplicating them in mve_mov<mode>. This requires the introduction of a
> new constraint to match a constant vector of booleans. Add a new RTL
> test.
>
> Patch 9: Introduce check_effective_target_arm_mve and skip
> gcc.dg/signbit-2.c, because with MVE there is no fallback architecture
> unlike SVE or AVX512.
>
> Patch 12: Update less load/store MVE builtins
> (mve_vldrdq_gather_base_z_<supf>v2di,
> mve_vldrdq_gather_offset_z_<supf>v2di,
> mve_vldrdq_gather_shifted_offset_z_<supf>v2di,
> mve_vstrdq_scatter_base_p_<supf>v2di,
> mve_vstrdq_scatter_offset_p_<supf>v2di,
> mve_vstrdq_scatter_offset_p_<supf>v2di_insn,
> mve_vstrdq_scatter_shifted_offset_p_<supf>v2di,
> mve_vstrdq_scatter_shifted_offset_p_<supf>v2di_insn,
> mve_vstrdq_scatter_base_wb_p_<supf>v2di,
> mve_vldrdq_gather_base_wb_z_<supf>v2di,
> mve_vldrdq_gather_base_nowb_z_<supf>v2di,
> mve_vldrdq_gather_base_wb_z_<supf>v2di_insn) for which we keep HI mode
> for vpr_register_operand.
>
> Patch 13: No need to update
> gcc.target/arm/acle/cde-mve-full-assembly.c anymore since we re-use
> the mov pattern that emits '@ movhi' in the assembly.
>
> Patch 15: This is a new patch to fix a problem I noticed during this
> v2->v3 update.
>
>
>
> I'll squash patch 2 with patch 9 and patch 3 with patch 8.
>
> Original text:
>
> This patch series addresses PR 100757 and 101325 by representing
> vectors of predicates (MVE VPR.P0 register) as vectors of booleans
> rather than using HImode.
>
> As this implies a lot of mostly mechanical changes, I have tried to
> split the patches in a way that should help reviewers, but the split
> is a bit artificial.
>
> Patches 1-3 add new tests.
>
> Patches 4-6 are small independent improvements.
>
> Patch 7 implements the predicate qualifier, but does not change any
> builtin yet.
>
> Patch 8 is the first of the two main patches, and uses the new
> qualifier to describe the vcmp and vpsel builtins that are useful for
> auto-vectorization of comparisons.
>
> Patch 9 is the second main patch, which fixes the vcond_mask expander.
>
> Patches 10-13 convert almost all the remaining builtins with HI
> operands to use the predicate qualifier. After these, there are still
> a few builtins with HI operands left, about which I am not sure: vctp,
> vpnot, load-gather and store-scatter with v2di operands. In fact,
> patches 11/12 update some STR/LDR qualifiers in a way that breaks
> these v2di builtins although existing tests still pass.
>
> Christophe Lyon (15):
> arm: Add new tests for comparison vectorization with Neon and MVE
> arm: Add tests for PR target/100757
> arm: Add tests for PR target/101325
> arm: Add GENERAL_AND_VPR_REGS regclass
> arm: Add support for VPR_REG in arm_class_likely_spilled_p
> arm: Fix mve_vmvnq_n_<supf><mode> argument mode
> arm: Implement MVE predicates as vectors of booleans
> arm: Implement auto-vectorized MVE comparisons with vectors of boolean
> predicates
> arm: Fix vcond_mask expander for MVE (PR target/100757)
> arm: Convert remaining MVE vcmp builtins to predicate qualifiers
> arm: Convert more MVE builtins to predicate qualifiers
> arm: Convert more load/store MVE builtins to predicate qualifiers
> arm: Convert more MVE/CDE builtins to predicate qualifiers
> arm: Add VPR_REG to ALL_REGS
> arm: Fix constraint check for V8HI in mve_vector_mem_operand
>
> gcc/config/aarch64/aarch64-modes.def | 8 +-
> gcc/config/arm/arm-builtins.c | 224 +++--
> gcc/config/arm/arm-builtins.h | 4 +-
> gcc/config/arm/arm-modes.def | 8 +
> gcc/config/arm/arm-protos.h | 4 +-
> gcc/config/arm/arm-simd-builtin-types.def | 4 +
> gcc/config/arm/arm.c | 169 ++--
> gcc/config/arm/arm.h | 9 +-
> gcc/config/arm/arm_mve_builtins.def | 746 ++++++++--------
> gcc/config/arm/constraints.md | 6 +
> gcc/config/arm/iterators.md | 6 +
> gcc/config/arm/mve.md | 795 ++++++++++--------
> gcc/config/arm/neon.md | 39 +
> gcc/config/arm/vec-common.md | 52 --
> gcc/config/arm/vfp.md | 34 +-
> gcc/doc/sourcebuild.texi | 4 +
> gcc/emit-rtl.c | 20 +-
> gcc/genmodes.c | 81 +-
> gcc/machmode.def | 2 +-
> gcc/rtx-vector-builder.c | 4 +-
> gcc/simplify-rtx.c | 34 +-
> gcc/testsuite/gcc.dg/signbit-2.c | 1 +
> .../gcc.target/arm/simd/mve-vcmp-f32-2.c | 32 +
> .../gcc.target/arm/simd/neon-compare-1.c | 78 ++
> .../gcc.target/arm/simd/neon-compare-2.c | 13 +
> .../gcc.target/arm/simd/neon-compare-3.c | 14 +
> .../arm/simd/neon-compare-scalar-1.c | 57 ++
> .../gcc.target/arm/simd/neon-vcmp-f16.c | 12 +
> .../gcc.target/arm/simd/neon-vcmp-f32-2.c | 15 +
> .../gcc.target/arm/simd/neon-vcmp-f32-3.c | 12 +
> .../gcc.target/arm/simd/neon-vcmp-f32.c | 12 +
> gcc/testsuite/gcc.target/arm/simd/neon-vcmp.c | 22 +
> .../gcc.target/arm/simd/pr100757-2.c | 20 +
> .../gcc.target/arm/simd/pr100757-3.c | 20 +
> .../gcc.target/arm/simd/pr100757-4.c | 19 +
> gcc/testsuite/gcc.target/arm/simd/pr100757.c | 19 +
> .../gcc.target/arm/simd/pr101325-2.c | 19 +
> gcc/testsuite/gcc.target/arm/simd/pr101325.c | 14 +
> gcc/testsuite/lib/target-supports.exp | 15 +-
> gcc/varasm.c | 7 +-
> 40 files changed, 1635 insertions(+), 1019 deletions(-)
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/mve-vcmp-f32-2.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-compare-1.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-compare-2.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-compare-3.c
> create mode 100644
> gcc/testsuite/gcc.target/arm/simd/neon-compare-scalar-1.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-vcmp-f16.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-vcmp-f32-2.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-vcmp-f32-3.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-vcmp-f32.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/neon-vcmp.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr100757-2.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr100757-3.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr100757-4.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr100757.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr101325-2.c
> create mode 100644 gcc/testsuite/gcc.target/arm/simd/pr101325.c
>
> --
> 2.25.1
>
>
next prev parent reply other threads:[~2022-01-14 13:18 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 14:56 Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 01/15] arm: Add new tests for comparison vectorization with Neon and MVE Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 02/15] arm: Add tests for PR target/100757 Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 03/15] arm: Add tests for PR target/101325 Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 04/15] arm: Add GENERAL_AND_VPR_REGS regclass Christophe Lyon
2022-01-19 18:17 ` Andre Vieira (lists)
2022-01-20 9:14 ` Christophe Lyon
2022-01-20 9:43 ` Andre Vieira (lists)
2022-01-20 10:40 ` Richard Sandiford
2022-01-20 10:45 ` Andre Vieira (lists)
2022-01-27 16:21 ` Kyrylo Tkachov
2022-01-13 14:56 ` [PATCH v3 05/15] arm: Add support for VPR_REG in arm_class_likely_spilled_p Christophe Lyon
2022-01-19 18:25 ` Andre Vieira (lists)
2022-01-20 9:20 ` Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 06/15] arm: Fix mve_vmvnq_n_<supf><mode> argument mode Christophe Lyon
2022-01-19 19:03 ` Andre Vieira (lists)
2022-01-20 9:23 ` Christophe Lyon
2022-01-20 9:38 ` Andre Simoes Dias Vieira
2022-01-20 9:44 ` Christophe Lyon
2022-01-20 10:45 ` Richard Sandiford
2022-01-20 11:06 ` Andre Vieira (lists)
2022-01-13 14:56 ` [PATCH v3 07/15] arm: Implement MVE predicates as vectors of booleans Christophe Lyon
2022-01-21 11:20 ` Andre Vieira (lists)
2022-01-21 22:30 ` Christophe Lyon
2022-01-27 16:28 ` Kyrylo Tkachov
2022-01-27 18:10 ` Christophe Lyon
2022-01-31 18:01 ` Richard Sandiford
2022-01-31 22:57 ` Christophe Lyon
2022-02-01 3:42 ` Richard Sandiford
2022-02-02 16:51 ` Christophe Lyon
2022-02-04 9:42 ` Richard Sandiford
2022-02-04 9:54 ` Richard Sandiford
2022-02-17 15:39 ` Christophe Lyon
2022-02-21 18:18 ` Richard Sandiford
2022-01-13 14:56 ` [PATCH v3 08/15] arm: Implement auto-vectorized MVE comparisons with vectors of boolean predicates Christophe Lyon
2022-01-27 16:37 ` Kyrylo Tkachov
2022-01-13 14:56 ` [PATCH v3 09/15] arm: Fix vcond_mask expander for MVE (PR target/100757) Christophe Lyon
2022-01-27 16:55 ` Kyrylo Tkachov
2022-01-13 14:56 ` [PATCH v3 10/15] arm: Convert remaining MVE vcmp builtins to predicate qualifiers Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 11/15] arm: Convert more MVE " Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 12/15] arm: Convert more load/store " Christophe Lyon
2022-01-27 16:56 ` Kyrylo Tkachov
2022-01-13 14:56 ` [PATCH v3 13/15] arm: Convert more MVE/CDE " Christophe Lyon
2022-01-27 16:56 ` Kyrylo Tkachov
2022-01-13 14:56 ` [PATCH v3 14/15] arm: Add VPR_REG to ALL_REGS Christophe Lyon
2022-01-13 14:56 ` [PATCH v3 15/15] arm: Fix constraint check for V8HI in mve_vector_mem_operand Christophe Lyon
2022-01-14 17:03 ` [arm] MVE: Relax addressing modes for full loads and stores Andre Vieira (lists)
2022-01-17 7:48 ` Christophe Lyon
2022-03-07 14:16 ` Andre Vieira (lists)
2022-03-07 16:14 ` Kyrylo Tkachov
2022-01-14 13:18 ` Christophe Lyon [this message]
2022-01-14 13:33 ` [PATCH v3 00/15] ARM/MVE use vectors of boolean for predicates Richard Biener
2022-01-14 14:22 ` Kyrylo Tkachov
2022-01-26 8:40 ` Christophe Lyon
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