From: Christophe Lyon <christophe.lyon....@gmail.com>
This is v4 of this patch series, fixing issues I discovered before
committing v2 (which had been approved). I am posting it for the
record of what I am going commit after I implemented all the requested
changes to v3.
Thanks a lot to Richard Sandiford for his help.
Most of the work of this patch series was carried out while I was
working at STMicroelectronics as a Linaro assignee.
The changes v3 -> v4 are:
Patch 5: Use build_truth_vector_type_for_mode to construct the boolean
types. Also fix the definition of B2Imode etc in init_emit_once.
Patches 6 and 7: Squash code change and testcases as requested during
the review.
Original text (patch numbers no longer match because of the squashes):
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 (12):
arm: Add new tests for comparison vectorization with Neon and MVE
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
gcc/config/aarch64/aarch64-modes.def | 8 +-
gcc/config/arm/arm-builtins.cc | 239 ++++--
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.cc | 166 ++--
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.cc | 28 +-
gcc/genmodes.cc | 71 +-
gcc/machmode.def | 11 +-
gcc/rtx-vector-builder.cc | 4 +-
gcc/simplify-rtx.cc | 34 +-
gcc/testsuite/gcc.dg/rtl/arm/mve-vxbi.c | 89 ++
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.cc | 7 +-
41 files changed, 1738 insertions(+), 1024 deletions(-)
create mode 100644 gcc/testsuite/gcc.dg/rtl/arm/mve-vxbi.c
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
