**WARNING** Following patch sets are exclusive:
1. [RFC PATCH v2] RISC-V: __builtin_riscv_pause for all environment 2. [RFC PATCH] RISC-V: Make __builtin_riscv_pause 'Zihintpause' only (this) See <https://gcc.gnu.org/pipermail/gcc-patches/2023-August/626748.html> for the background of this patch set. Changes: (all environment) v1 -> ('Zihintpause'-only) v1 * Based on the feedback from Jeff Law, I made an alternative patch set which makes "__builtin_riscv_pause" 'Zihintpause'-only. Comparison: Patch sets [1] and [2] (this) * [1] completely preserves the compatibility with GCC 13 ([2] removes __builtin_riscv_pause if the 'Zihintpause' extension is absent, making a minor compatibility issue) * Because of the nature of the instrinsic, [2] is more natural ("pause" is defined in the 'Zihintpause' extension). Please consider those patch sets and decide which to apply. Sincerely, Tsukasa Tsukasa OI (2): RISC-V: Make __builtin_riscv_pause 'Zihintpause' only RISC-V: Fix documentation of __builtin_riscv_pause gcc/common/config/riscv/riscv-common.cc | 2 ++ gcc/config/riscv/riscv-builtins.cc | 4 ++-- gcc/config/riscv/riscv-opts.h | 2 ++ gcc/config/riscv/riscv.md | 2 +- gcc/doc/extend.texi | 6 +++--- gcc/testsuite/gcc.target/riscv/builtin_pause.c | 10 ---------- gcc/testsuite/gcc.target/riscv/zihintpause-1.c | 11 +++++++++++ gcc/testsuite/gcc.target/riscv/zihintpause-2.c | 11 +++++++++++ 8 files changed, 32 insertions(+), 16 deletions(-) delete mode 100644 gcc/testsuite/gcc.target/riscv/builtin_pause.c create mode 100644 gcc/testsuite/gcc.target/riscv/zihintpause-1.c create mode 100644 gcc/testsuite/gcc.target/riscv/zihintpause-2.c base-commit: 9b099a83b45b8fcdfc07d518e05d36ea741b2227 -- 2.41.0
