https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65181
--- Comment #13 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Thomas Schwinge <tschwi...@gcc.gnu.org>: https://gcc.gnu.org/g:3861d362ec7e3c50742fc43833fe9d8674f4070e commit r15-6733-g3861d362ec7e3c50742fc43833fe9d8674f4070e Author: Thomas Schwinge <tschwi...@baylibre.com> Date: Sat Dec 7 00:17:49 2024 +0100 nvptx: PTX 'alloca' for '-mptx=7.3'+, '-march=sm_52'+ [PR65181] ..., and use it for '-mno-soft-stack': PTX "native" stacks. PR target/65181 gcc/ * config/nvptx/nvptx.cc (nvptx_get_drap_rtx): Handle '!TARGET_SOFT_STACK'. * config/nvptx/nvptx.md (define_c_enum "unspec"): Add 'UNSPEC_STACKSAVE', 'UNSPEC_STACKRESTORE'. (define_expand "allocate_stack", define_expand "save_stack_block") (define_expand "save_stack_block"): Handle '!TARGET_SOFT_STACK', PTX 'alloca'. (define_insn "@nvptx_alloca_<mode>") (define_insn "@nvptx_stacksave_<mode>") (define_insn "@nvptx_stackrestore_<mode>"): New. * doc/invoke.texi (Nvidia PTX Options): Update '-msoft-stack', '-mno-soft-stack'. * doc/sourcebuild.texi (nvptx-specific attributes): Document 'nvptx_runtime_alloca_ptx'. (Add Options): Document 'nvptx_alloca_ptx'. gcc/testsuite/ * gcc.target/nvptx/alloca-1.c: Evolve into... * gcc.target/nvptx/alloca-1-O0.c: ... this, ... * gcc.target/nvptx/alloca-1-O1.c: ... this, and... * gcc.target/nvptx/alloca-1-sm_30.c: ... this. * gcc.target/nvptx/vla-1.c: Evolve into... * gcc.target/nvptx/vla-1-O0.c: ... this, ... * gcc.target/nvptx/vla-1-O1.c: ... this, and... * gcc.target/nvptx/vla-1-sm_30.c: ... this. * gcc.c-torture/execute/pr36321.c: Adjust. * gcc.target/nvptx/__builtin_alloca_0-1-O0.c: Likewise. * gcc.target/nvptx/__builtin_alloca_0-1-O1.c: Likewise. * gcc.target/nvptx/__builtin_stack_save___builtin_stack_restore-1.c: Likewise. * gcc.target/nvptx/softstack.c: Likewise. * gcc.target/nvptx/__builtin_stack_save___builtin_stack_restore-1-sm_30.c: New. * gcc.target/nvptx/alloca-2-O0.c: Likewise. * gcc.target/nvptx/alloca-3-O1.c: Likewise. * gcc.target/nvptx/alloca-4-O3.c: Likewise. * gcc.target/nvptx/alloca-5.c: Likewise. * lib/target-supports.exp (check_effective_target_alloca): Adjust. (check_nvptx_default_ptx_isa_target_architecture_at_least) (check_nvptx_runtime_ptx_isa_target_architecture_at_least) (check_effective_target_nvptx_runtime_alloca_ptx) (add_options_for_nvptx_alloca_ptx): New. libgomp/ * fortran.c (omp_get_device_from_uid_): Adjust. * testsuite/libgomp.oacc-fortran/privatized-ref-2.f90: Likewise.
