001-revert_register_mode_search.patch (2410B)
1 Revert of: 2 3 commit 275035b56823b26d5fb7e90fad945b998648edf2 4 Author: bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4> 5 Date: Thu Sep 5 14:09:07 2013 +0000 6 7 PR target/58139 8 * reginfo.c (choose_hard_reg_mode): Scan through all mode classes 9 looking for widest mode. 10 11 12 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4 13 14 15 --- a/gcc/reginfo.c 16 +++ b/gcc/reginfo.c 17 @@ -665,35 +665,40 @@ choose_hard_reg_mode (unsigned int regno 18 mode = GET_MODE_WIDER_MODE (mode)) 19 if ((unsigned) hard_regno_nregs[regno][mode] == nregs 20 && HARD_REGNO_MODE_OK (regno, mode) 21 - && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) 22 - && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) 23 + && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) 24 found_mode = mode; 25 26 + if (found_mode != VOIDmode) 27 + return found_mode; 28 + 29 for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT); 30 mode != VOIDmode; 31 mode = GET_MODE_WIDER_MODE (mode)) 32 if ((unsigned) hard_regno_nregs[regno][mode] == nregs 33 && HARD_REGNO_MODE_OK (regno, mode) 34 - && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) 35 - && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) 36 + && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) 37 found_mode = mode; 38 39 + if (found_mode != VOIDmode) 40 + return found_mode; 41 + 42 for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT); 43 mode != VOIDmode; 44 mode = GET_MODE_WIDER_MODE (mode)) 45 if ((unsigned) hard_regno_nregs[regno][mode] == nregs 46 && HARD_REGNO_MODE_OK (regno, mode) 47 - && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) 48 - && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) 49 + && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) 50 found_mode = mode; 51 52 + if (found_mode != VOIDmode) 53 + return found_mode; 54 + 55 for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT); 56 mode != VOIDmode; 57 mode = GET_MODE_WIDER_MODE (mode)) 58 if ((unsigned) hard_regno_nregs[regno][mode] == nregs 59 && HARD_REGNO_MODE_OK (regno, mode) 60 - && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)) 61 - && GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode)) 62 + && (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))) 63 found_mode = mode; 64 65 if (found_mode != VOIDmode)