diff options
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index e6b10ea..fb8d83a 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -5744,6 +5744,45 @@ expand_builtin_sync_synchronize (void) expand_mem_thread_fence (MEMMODEL_SEQ_CST); } +static rtx +expand_builtin_thread_pointer (tree exp, rtx target) +{ + enum insn_code icode; + if (!validate_arglist (exp, VOID_TYPE)) + return const0_rtx; + icode = direct_optab_handler (get_thread_pointer_optab, Pmode); + if (icode != CODE_FOR_nothing) + { + struct expand_operand op; + if (!REG_P (target) || GET_MODE (target) != Pmode) + target = gen_reg_rtx (Pmode); + create_output_operand (&op, target, Pmode); + expand_insn (icode, 1, &op); + return target; + } + error ("__builtin_thread_pointer is not supported on this target"); + return const0_rtx; +} + +static void +expand_builtin_set_thread_pointer (tree exp) +{ + enum insn_code icode; + if (!validate_arglist (exp, POINTER_TYPE, VOID_TYPE)) + return; + icode = direct_optab_handler (set_thread_pointer_optab, Pmode); + if (icode != CODE_FOR_nothing) + { + struct expand_operand op; + rtx val = expand_expr (CALL_EXPR_ARG (exp, 0), NULL_RTX, + Pmode, EXPAND_NORMAL); + create_fixed_operand (&op, val); + expand_insn (icode, 1, &op); + return; + } + error ("__builtin_set_thread_pointer is not supported on this target"); +} + /* Expand an expression EXP that calls a built-in function, with result going to TARGET if that's convenient @@ -6809,6 +6848,13 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode, maybe_emit_free_warning (exp); break; + case BUILT_IN_THREAD_POINTER: + return expand_builtin_thread_pointer (exp, target); + + case BUILT_IN_SET_THREAD_POINTER: + expand_builtin_set_thread_pointer (exp); + return const0_rtx; + default: /* just do library call, if unknown builtin */ break; } |