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
--
2.25.1
