From 897118e835f7590d993642a56001e4113228f1a6 Mon Sep 17 00:00:00 2001 From: aldyh Date: Mon, 4 Nov 2002 16:58:39 +0000 Subject: 2002-11-04 Aldy Hernandez * hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): New. * config/rs6000/rs6000.h (CLASS_CANNOT_CHANGE_MODE_P): Remove. (CLASS_CANNOT_CHANGE_MODE): Remove. (CANNOT_CHANGE_MODE_CLASS): New. * config/alpha/alpha.h: Same. * config/ia64/ia64.h: Same. * config/mips/mips.h: Same. * config/s390/s390.h: Same. * config/sh/sh.h: Same. * config/pa/pa64-regs.h: Same. * config/sh/sh-protos.h (sh_cannot_change_mode_class): Add prototype. * config/sh/sh.c (sh_cannot_change_mode_class): New. * config/mips/mips-protos.h (mips_cannot_change_mode_class): Add prototype. * config/mips/mips.c (mips_cannot_change_mode_class): New. * doc/tm.texi (Register Classes): Remove CLASS_CANNOT_CHANGE_MODE and CLASS_CANNOT_CHANGE_MODE_P. Document CANNOT_CHANGE_MODE_CLASS. * reload.c (push_reload): Use CANNOT_CHANGE_MODE_CLASS. (push_reload): Same. * simplify-rtx.c (simplify_subreg): Same. * reload1.c (choose_reload_regs): Same. * recog.c (register_operand): Same. * regrename.c (mode_change_ok): Change to use new CANNOT_CHANGE_MODE_CLASS infrastructure. * regclass.c (cannot_change_mode_set_regs): New. Declare subregs_of_mode. (regclass): Use subregs_of_mode. Remove references to reg_changes_mode. (init_reg_sets_1): Remove class_can_change_mode and reg_changes_mode code. (invalid_mode_change_p): New. (dump_regclass): Use invalid_mode_change_p instead of class_can_change_mode. (regclass): Same. (record_operand_costs): Do not set reg_changes_mode. * local-alloc.c (struct qty): Remove changes_mode field. (alloc_qty): Remove changes_mode initialization. (update_qty_class): Remove set of changes_mode. (find_free_reg): Use subregs_of_mode. * global.c (find_reg): Use subregs_of_mode info. * rtl.h (cannot_change_mode_set_regs): New prototype. (invalid_mode_change_p): Same. (REG_CANNOT_CHANGE_MODE_P): New macro. * flow.c (mark_used_regs): Calculate subregs_of_mode. Remove REG_CHANGES_MODE. (life_analysis): Clear subregs_of_mode. * combine.c (subst): Pass class to CLASS_CANNOT_CHANGE_MODE_P. Remove use of CLASS_CANNOT_CHANGE_MODE. (simplify_set): Same. (gen_lowpart_for_combine): Calculate subregs_of_mode. Remove REG_CHANGES_MODE. * regs.h: Add extern for subregs_of_mode; Include hard-reg-set and basic-block. (REG_CHANGES_MODE): Delete. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@58794 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/config/pa/pa64-regs.h | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'gcc/config/pa/pa64-regs.h') diff --git a/gcc/config/pa/pa64-regs.h b/gcc/config/pa/pa64-regs.h index 0af4c5fb270..2d0ebe3d172 100644 --- a/gcc/config/pa/pa64-regs.h +++ b/gcc/config/pa/pa64-regs.h @@ -232,12 +232,7 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS, {0x00000000, 0x10000000}, /* SHIFT_REGS */ \ {0xfffffffe, 0x1fffffff}} /* ALL_REGS */ -/* If defined, gives a class of registers that cannot be used as the - operand of a SUBREG that changes the mode of the object illegally. */ - -#define CLASS_CANNOT_CHANGE_MODE (FP_REGS) - -/* Defines illegal mode changes for CLASS_CANNOT_CHANGE_MODE. +/* Defines invalid mode changes. SImode loads to floating-point registers are not zero-extended. The definition for LOAD_EXTEND_OP specifies that integer loads @@ -245,8 +240,9 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS, we inhibit changes from SImode unless they are to a mode that is identical in size. */ -#define CLASS_CANNOT_CHANGE_MODE_P(FROM,TO) \ - ((FROM) == SImode && GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)) +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO) \ + ((FROM) == SImode && GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \ + ? FP_REGS : NO_REGS) /* Return the class number of the smallest class containing reg number REGNO. This could be a conditional expression -- cgit v1.2.1