diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0c2e7b4c252b7365af3a0d4573eb65dc4aca358c..b8c5b38ce73f3fcde5cee1d0bda91bf49c31ce22 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2014-06-11 Richard Sandiford <rdsandiford@googlemail.com> + + * genpreds.c (write_constraint_satisfied_p_1): Replace with... + (write_constraint_satisfied_p_array): ...this new function. + (write_tm_preds_h): Replace write_constraint_satisfied_p_1 with + an array. + (write_insn_preds_c): Update accordingly. + 2014-06-11 Richard Sandiford <rdsandiford@googlemail.com> * genpreds.c (write_lookup_constraint): Rename to... diff --git a/gcc/genpreds.c b/gcc/genpreds.c index 3f52b87899bb0fd657070e5aaaf10a7485e5b99d..e5ffb386bde6eabaf9333fc09be4eebffb05857c 100644 --- a/gcc/genpreds.c +++ b/gcc/genpreds.c @@ -1166,29 +1166,19 @@ write_tm_constrs_h (void) a CONSTRAINT_xxx constant to one of the predicate functions generated above. */ static void -write_constraint_satisfied_p_1 (void) +write_constraint_satisfied_p_array (void) { - struct constraint_data *c; - if (satisfied_start == num_constraints) return; - puts ("bool\n" - "constraint_satisfied_p_1 (rtx op, enum constraint_num c)\n" - "{\n" - " switch (c)\n" - " {"); - - FOR_ALL_CONSTRAINTS (c) - if (!c->is_register) - printf (" case CONSTRAINT_%s: " - "return satisfies_constraint_%s (op);\n", - c->c_name, c->c_name); - - puts (" default: break;\n" - " }\n" - " return false;\n" - "}\n"); + printf ("bool (*constraint_satisfied_p_array[]) (rtx) = {\n "); + for (unsigned int i = satisfied_start; i < num_constraints; ++i) + { + if (i != satisfied_start) + printf (",\n "); + printf ("satisfies_constraint_%s", enum_order[i]->c_name); + } + printf ("\n};\n\n"); } /* Write out the function which computes whether a given value matches @@ -1293,16 +1283,15 @@ write_tm_preds_h (void) " return false;\n" "}\n"); else - printf ("extern bool constraint_satisfied_p_1 (rtx," - " enum constraint_num);\n" + printf ("extern bool (*constraint_satisfied_p_array[]) (rtx);\n" "\n" "/* Return true if X satisfies constraint C. */\n" "\n" "static inline bool\n" "constraint_satisfied_p (rtx x, enum constraint_num c)\n" "{\n" - " return c >= CONSTRAINT_%s" - " && constraint_satisfied_p_1 (x, c);\n" + " int i = (int) c - (int) CONSTRAINT_%s;\n" + " return i >= 0 && constraint_satisfied_p_array[i] (x);\n" "}\n" "\n", enum_order[satisfied_start]->name); @@ -1425,7 +1414,7 @@ write_insn_preds_c (void) write_lookup_constraint_array (); if (have_register_constraints) write_reg_class_for_constraint_1 (); - write_constraint_satisfied_p_1 (); + write_constraint_satisfied_p_array (); if (have_const_int_constraints) write_insn_const_int_ok_for_constraint ();