From: Saurabh Jha <saurabh....@arm.com> This patch series is a respin of a previous patch here: https://gcc.gnu.org/pipermail/gcc-patches/2024-August/658984.html
The AArch64 FEAT_FAMINMAX is optional from Armv9.2-a and mandatory from Armv9.5-a. It introduces instructions for computing the floating point absolute maximum and minimum of the two vectors element-wise. This new version addresses all review comments from the previous version. Additionally, we realised that the NaN/Inf behaviour of famax/famin and fmax/fmin are not the same, as we previously thought. The behaviour of famax/famin and fmaxnm/fminnm are not same either. The new codegen strategy is to combine the rtl operators smax and abs into famax and smin and abs into famin. We are using two instruction patterns: one for intrinsics and one for codegen. Apart from codegen changes and their test cases, this new version also changes intrinsic tests to use the -O3 flag. This removes the need for testing loads and stores. The old code for intrinsic and the refactoring of report_missing_extension and report_missing_extension_p are same as the previous version. Regression tested for aarch64-none-linux-gnu and found no regressions. Ok for master? I don't have commit access so can someone please commit on my behalf? Saurabh Jha (2): aarch64: Add AdvSIMD faminmax intrinsics aarch64: Add codegen support for AdvSIMD faminmax gcc/config/aarch64/aarch64-builtins.cc | 173 +++++++++++++- gcc/config/aarch64/aarch64-builtins.h | 5 +- .../aarch64/aarch64-option-extensions.def | 2 + gcc/config/aarch64/aarch64-simd.md | 21 ++ gcc/config/aarch64/aarch64-sve-builtins.cc | 22 -- gcc/config/aarch64/aarch64.h | 4 + gcc/config/aarch64/iterators.md | 12 + gcc/config/arm/types.md | 6 + gcc/doc/invoke.texi | 2 + .../aarch64/simd/faminmax-builtins-no-flag.c | 10 + .../aarch64/simd/faminmax-builtins.c | 115 ++++++++++ .../aarch64/simd/faminmax-codegen-no-flag.c | 217 ++++++++++++++++++ .../aarch64/simd/faminmax-codegen.c | 197 ++++++++++++++++ 13 files changed, 754 insertions(+), 32 deletions(-) create mode 100644 gcc/testsuite/gcc.target/aarch64/simd/faminmax-builtins-no-flag.c create mode 100644 gcc/testsuite/gcc.target/aarch64/simd/faminmax-builtins.c create mode 100644 gcc/testsuite/gcc.target/aarch64/simd/faminmax-codegen-no-flag.c create mode 100644 gcc/testsuite/gcc.target/aarch64/simd/faminmax-codegen.c -- 2.43.2
