> gcc/ > > * config/i386/i386-opts.h (indirect_branch): New. > * config/i386/i386-protos.h (ix86_output_indirect_jmp): Likewise. > * config/i386/i386.c (ix86_using_red_zone): Disallow red-zone > with local indirect jump when converting indirect call and jump. > (ix86_set_indirect_branch_type): New. > (ix86_set_current_function): Call ix86_set_indirect_branch_type. > (indirectlabelno): New. > (indirect_thunk_needed): Likewise. > (indirect_thunk_bnd_needed): Likewise. > (indirect_thunks_used): Likewise. > (indirect_thunks_bnd_used): Likewise. > (INDIRECT_LABEL): Likewise. > (indirect_thunk_name): Likewise. > (output_indirect_thunk): Likewise. > (output_indirect_thunk_function): Likewise. > (ix86_output_indirect_branch): Likewise. > (ix86_output_indirect_jmp): Likewise. > (ix86_code_end): Call output_indirect_thunk_function if needed. > (ix86_output_call_insn): Call ix86_output_indirect_branch if > needed. > (ix86_handle_fndecl_attribute): Handle indirect_branch. > (ix86_attribute_table): Add indirect_branch. > * config/i386/i386.h (machine_function): Add indirect_branch_type > and has_local_indirect_jump. > * config/i386/i386.md (indirect_jump): Set has_local_indirect_jump > to true. > (tablejump): Likewise. > (*indirect_jump): Use ix86_output_indirect_jmp. > (*tablejump_1): Likewise. > (simple_return_indirect_internal): Likewise. > * config/i386/i386.opt (mindirect-branch=): New option. > (indirect_branch): New. > (keep): Likewise. > (thunk): Likewise. > (thunk-inline): Likewise. > (thunk-extern): Likewise. > * doc/extend.texi: Document indirect_branch function attribute. > * doc/invoke.texi: Document -mindirect-branch= option. > > gcc/testsuite/ > > * gcc.target/i386/indirect-thunk-1.c: New test. > * gcc.target/i386/indirect-thunk-2.c: Likewise. > * gcc.target/i386/indirect-thunk-3.c: Likewise. > * gcc.target/i386/indirect-thunk-4.c: Likewise. > * gcc.target/i386/indirect-thunk-5.c: Likewise. > * gcc.target/i386/indirect-thunk-6.c: Likewise. > * gcc.target/i386/indirect-thunk-7.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-1.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-2.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-3.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-4.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-5.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-6.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-7.c: Likewise. > * gcc.target/i386/indirect-thunk-attr-8.c: Likewise. > * gcc.target/i386/indirect-thunk-bnd-1.c: Likewise. > * gcc.target/i386/indirect-thunk-bnd-2.c: Likewise. > * gcc.target/i386/indirect-thunk-bnd-3.c: Likewise. > * gcc.target/i386/indirect-thunk-bnd-4.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-1.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-2.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-3.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-4.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-5.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-6.c: Likewise. > * gcc.target/i386/indirect-thunk-extern-7.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-1.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-2.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-3.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-4.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-5.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-6.c: Likewise. > * gcc.target/i386/indirect-thunk-inline-7.c: Likewise. > + > + /* Pause . */ > + fprintf (asm_out_file, "\tpause\n");
OK, but please prepare incremental patches to choose between pause and lefence as needed for AMD CPUs and check for large code model.
