Makefile.in: Add rules for regrename.o
* Makefile.in: Add rules for regrename.o * regrename.c: New file. * rtl.h (regrename_optimize): Add prototype. * toplev.c (rename_registers_dump, flag_rename_registers): New variables (compile_file, decode_d_option): Add support for -frename-registers. (rest_of_compilation): Call regrename_optimize. * config/ia64/ia64.h (HARD_REGNO_RENAME_OK, RENAME_EXTENDED_BLOCKS): New macros. From-SVN: r32916
This commit is contained in:
Stan Cox
Stan Cox
parent
501a481953
commit
7b82b5da01
@ -1,3 +1,14 @@
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2000-04-04 Stan Cox <scox@cygnus.com>
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* Makefile.in: Add rules for regrename.o
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* regrename.c: New file.
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* rtl.h (regrename_optimize): Add prototype.
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* toplev.c (rename_registers_dump, flag_rename_registers): New variables
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(compile_file, decode_d_option): Add support for -frename-registers.
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(rest_of_compilation): Call regrename_optimize.
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* config/ia64/ia64.h (HARD_REGNO_RENAME_OK, RENAME_EXTENDED_BLOCKS):
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New macros.
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2000-04-04 Martin v. Löwis <loewis@informatik.hu-berlin.de>
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* Makefile (gccbug): New target.
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@ -675,7 +675,7 @@ OBJS = diagnostic.o \
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dbxout.o sdbout.o dwarfout.o dwarf2out.o xcoffout.o bitmap.o alias.o gcse.o \
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integrate.o jump.o cse.o loop.o unroll.o flow.o combine.o varray.o \
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regclass.o regmove.o local-alloc.o global.o reload.o reload1.o caller-save.o \
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insn-peep.o reorg.o haifa-sched.o final.o recog.o reg-stack.o \
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insn-peep.o reorg.o haifa-sched.o final.o recog.o reg-stack.o regrename.o \
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insn-opinit.o insn-recog.o insn-extract.o insn-output.o insn-emit.o lcm.o \
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profile.o insn-attrtab.o $(out_object_file) $(EXTRA_OBJS) convert.o \
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mbchar.o dyn-string.o splay-tree.o graph.o sbitmap.o resource.o hash.o \
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@ -1653,6 +1653,10 @@ bb-reorder.o : bb-reorder.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
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insn-config.h $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h toplev.h \
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$(RECOG_H) insn-flags.h function.h except.h $(EXPR_H)
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regrename.o : regrename.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
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insn-config.h $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h \
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$(RECOG_H) function.h resource.h
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$(out_object_file): $(out_file) $(CONFIG_H) $(TREE_H) ggc.h \
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$(RTL_H) $(REGS_H) hard-reg-set.h real.h insn-config.h conditions.h \
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insn-flags.h output.h insn-attr.h insn-codes.h system.h toplev.h function.h
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@ -2589,6 +2589,25 @@ do { \
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/* Define to enable software floating point emulation. */
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#define REAL_ARITHMETIC
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/* Register Renaming Parameters. */
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/* A C expression that is nonzero if hard register number REGNO2 can be
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considered for use as a rename register for REGNO1 */
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#define HARD_REGNO_RENAME_OK(REGNO1,REGNO2) \
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((! PR_REGNO_P (REGNO1) && ! PR_REGNO_P (REGNO2)) \
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? (!call_fixed_regs [REGNO1] && !call_fixed_regs [REGNO2]) \
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? 1 : 0 \
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: ((REGNO2) > 256 && ((REGNO2 & 1) == 0)) \
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? 1 : 0)
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/* Define this macro if the compiler should use extended basic blocks
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when renaming registers. Define this macro if the target has predicate
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registers. */
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#define RENAME_EXTENDED_BLOCKS
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/* Miscellaneous Parameters. */
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1050
gcc/regrename.c
Normal file
1050
gcc/regrename.c
Normal file
File diff suppressed because it is too large
Load Diff
@ -1798,4 +1798,8 @@ extern void convert_from_ssa PARAMS ((void));
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extern rtx stack_limit_rtx;
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/* In regrename.c */
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extern void regrename_optimize PARAMS ((void));
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#endif /* _RTL_H */
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20
gcc/toplev.c
20
gcc/toplev.c
@ -270,6 +270,7 @@ enum dump_file_index
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DFI_peephole2,
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DFI_sched2,
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DFI_bbro,
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DFI_rnreg,
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DFI_jump2,
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DFI_mach,
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DFI_dbr,
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@ -302,6 +303,7 @@ struct dump_file_info dump_file[DFI_MAX] =
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{ "peephole2", 'z', 1, 0, 0 },
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{ "sched2", 'R', 1, 0, 0 },
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{ "bbro", 'B', 1, 0, 0 },
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{ "rnreg", 'n', 1, 0, 0 },
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{ "jump2", 'J', 1, 0, 0 },
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{ "mach", 'M', 1, 0, 0 },
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{ "dbr", 'd', 0, 0, 0 },
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@ -423,6 +425,10 @@ int flag_branch_probabilities = 0;
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int flag_reorder_blocks = 0;
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/* Nonzero if registers should be renamed */
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int flag_rename_registers = 0;
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/* Nonzero for -pedantic switch: warn about anything
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that standard spec forbids. */
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@ -1019,6 +1025,8 @@ lang_independent_options f_options[] =
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"Use profiling information for branch probabilities" },
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{"reorder-blocks", &flag_reorder_blocks, 1,
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"Reorder basic blocks to improve code placement" },
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{"rename-registers", &flag_rename_registers, 1,
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"Do the register renaming optimization pass"},
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{"fast-math", &flag_fast_math, 1,
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"Improve FP speed by violating ANSI & IEEE rules" },
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{"common", &flag_no_common, 0,
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@ -1415,6 +1423,7 @@ int peephole2_time;
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int sched2_time;
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int dbr_sched_time;
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int reorder_blocks_time;
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int rename_registers_time;
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int shorten_branch_time;
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int stack_reg_time;
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int final_time;
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@ -2164,6 +2173,7 @@ compile_file (name)
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sched2_time = 0;
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dbr_sched_time = 0;
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reorder_blocks_time = 0;
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rename_registers_time = 0;
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shorten_branch_time = 0;
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stack_reg_time = 0;
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final_time = 0;
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@ -2572,6 +2582,7 @@ compile_file (name)
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print_time ("dbranch", dbr_sched_time);
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#endif
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print_time ("bbro", reorder_blocks_time);
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print_time ("rnreg", rename_registers_time);
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print_time ("shorten-branch", shorten_branch_time);
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#ifdef STACK_REGS
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print_time ("stack-reg", stack_reg_time);
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@ -3421,6 +3432,15 @@ rest_of_compilation (decl)
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close_dump_file (DFI_bbro, print_rtl_with_bb, insns);
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}
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if (optimize > 0 && flag_rename_registers)
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{
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open_dump_file (DFI_rnreg, decl);
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TIMEVAR (rename_registers_time, regrename_optimize ());
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close_dump_file (DFI_rnreg, print_rtl_with_bb, insns);
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}
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/* One more attempt to remove jumps to .+1 left by dead-store elimination.
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Also do cross-jumping this time and delete no-op move insns. */
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