diff options
Diffstat (limited to 'gcc-4.8/gcc/target.def')
| -rw-r--r-- | gcc-4.8/gcc/target.def | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/target.def b/gcc-4.8/gcc/target.def index 831cad811..7549e15e2 100644 --- a/gcc-4.8/gcc/target.def +++ b/gcc-4.8/gcc/target.def @@ -2841,6 +2841,51 @@ DEFHOOK HOOK_VECTOR_END (target_option) +/* Functions used to simplify GOT access. */ +#undef HOOK_PREFIX +#define HOOK_PREFIX "TARGET_" +HOOK_VECTOR (TARGET_SIMPLIFY_GOT_ACCESS, simplify_got_access) + +/* Function to get the pic_reg which holds the base address of GOT. */ +DEFHOOK +(get_pic_reg, + "", + rtx, (void), + hook_rtx_void_null) + +/* Function to clear the pic_reg which is useless now. */ +DEFHOOK +(clear_pic_reg, + "", + void, (void), + NULL) + +/* Function to detect if the specified insn loads a global variable's + address from GOT. If so returns that symbol. */ +DEFHOOK +(loaded_global_var, + "", + rtx, (rtx insn, rtx *offset_reg, rtx *offset_insn), + NULL) + +/* This function checks if it satisfies the target dependent conditions + that we can simplify GOT accesses. */ +DEFHOOK +(can_simplify_got_access, + "", + bool, (int n_symbol, int n_access), + NULL) + +/* This function does the actual rewriting of GOT accesses. */ +DEFHOOK +(load_global_address, + "", + void, (rtx symbol, rtx offset_reg, rtx address_reg, rtx load_insn, + rtx offset_insn), + NULL) + +HOOK_VECTOR_END (got_access) + /* For targets that need to mark extra registers as live on entry to the function, they should define this target hook and set their bits in the bitmap passed in. */ |