Hi all, This patch series introduces standard names for scalar, Adv. SIMD, and SVE saturating arithmetic instructions in the aarch64 backend.
Additional tests are added for unsigned saturating arithmetic, as well as to test that the auto-vectorizer correctly inserts NEON instructions or scalar instructions where necessary, such as in 32 and 64-bit scalar unsigned arithmetic. There are also tests for the auto-vectorized SVE code. An important discussion point: this patch causes scalar 32 and 64-bit unsigned saturating arithmetic to now use adds, csinv / subs, csel as is expected elsewhere in the backend. This affects the NEON intrinsics for these two modes as well. This is the cause of a few test failures, otherwise there are no regressions on aarch64-none-linux-gnu. SVE currently uses the unpredicated version of the instruction in the backend. Many thanks, Akram --- Akram Ahmad (2): aarch64: Use standard names for saturating arithmetic aarch64: Use standard names for SVE saturating arithmetic gcc/config/aarch64/aarch64-builtins.cc | 13 +++ gcc/config/aarch64/aarch64-simd-builtins.def | 8 +- gcc/config/aarch64/aarch64-simd.md | 93 +++++++++++++++++- gcc/config/aarch64/aarch64-sve.md | 4 +- gcc/config/aarch64/arm_neon.h | 96 +++++++++---------- gcc/config/aarch64/iterators.md | 4 + .../saturating_arithmetic_autovect.inc | 58 +++++++++++ .../saturating_arithmetic_autovect_1.c | 79 +++++++++++++++ .../saturating_arithmetic_autovect_2.c | 79 +++++++++++++++ .../saturating_arithmetic_autovect_3.c | 75 +++++++++++++++ .../saturating_arithmetic_autovect_4.c | 77 +++++++++++++++ .../aarch64/saturating_arithmetic.inc | 39 ++++++++ .../aarch64/saturating_arithmetic_1.c | 41 ++++++++ .../aarch64/saturating_arithmetic_2.c | 41 ++++++++ .../aarch64/saturating_arithmetic_3.c | 30 ++++++ .../aarch64/saturating_arithmetic_4.c | 30 ++++++ .../aarch64/sve/saturating_arithmetic.inc | 68 +++++++++++++ .../aarch64/sve/saturating_arithmetic_1.c | 60 ++++++++++++ .../aarch64/sve/saturating_arithmetic_2.c | 60 ++++++++++++ .../aarch64/sve/saturating_arithmetic_3.c | 62 ++++++++++++ .../aarch64/sve/saturating_arithmetic_4.c | 62 ++++++++++++ 21 files changed, 1021 insertions(+), 58 deletions(-) create mode 100644 gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/saturating_arithmetic_autovect.inc create mode 100644 gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/saturating_arithmetic_autovect_1.c create mode 100644 gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/saturating_arithmetic_autovect_2.c create mode 100644 gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/saturating_arithmetic_autovect_3.c create mode 100644 gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/saturating_arithmetic_autovect_4.c create mode 100644 gcc/testsuite/gcc.target/aarch64/saturating_arithmetic.inc create mode 100644 gcc/testsuite/gcc.target/aarch64/saturating_arithmetic_1.c create mode 100644 gcc/testsuite/gcc.target/aarch64/saturating_arithmetic_2.c create mode 100644 gcc/testsuite/gcc.target/aarch64/saturating_arithmetic_3.c create mode 100644 gcc/testsuite/gcc.target/aarch64/saturating_arithmetic_4.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/saturating_arithmetic.inc create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/saturating_arithmetic_1.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/saturating_arithmetic_2.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/saturating_arithmetic_3.c create mode 100644 gcc/testsuite/gcc.target/aarch64/sve/saturating_arithmetic_4.c -- 2.34.1
