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On 07/09/2021 11:15, Christophe Lyon wrote:
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 (13): arm: Add new tests for comparison vectorization with Neon and MVE arm: Add tests for PR target/100757 arm: Add test 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 gcc/config/arm/arm-builtins.c | 228 +++-- gcc/config/arm/arm-modes.def | 5 + gcc/config/arm/arm-protos.h | 3 +- gcc/config/arm/arm-simd-builtin-types.def | 4 + gcc/config/arm/arm.c | 128 ++- gcc/config/arm/arm.h | 5 +- gcc/config/arm/arm_mve_builtins.def | 746 ++++++++-------- gcc/config/arm/iterators.md | 5 + gcc/config/arm/mve.md | 823 ++++++++++-------- gcc/config/arm/neon.md | 39 + gcc/config/arm/vec-common.md | 52 -- gcc/simplify-rtx.c | 7 + .../arm/acle/cde-mve-full-assembly.c | 264 +++--- .../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/testsuite/gcc.target/arm/simd/pr101325.c | 14 + 28 files changed, 1581 insertions(+), 1087 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.c