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| author | Stan Cox <coxs@gnu.org> | 1996-08-02 21:27:07 +0000 |
|---|---|---|
| committer | Stan Cox <coxs@gnu.org> | 1996-08-02 21:27:07 +0000 |
| commit | e2a606cb27a100bb5fd96dcd62da9b2c1e2f4b57 (patch) | |
| tree | 1761de3098f5f705f5d489dd9493a8345b0120b3 | |
| parent | f8a5c113dd2a02970b87121571de46f5f1f09007 (diff) | |
| download | gcc-e2a606cb27a100bb5fd96dcd62da9b2c1e2f4b57.zip gcc-e2a606cb27a100bb5fd96dcd62da9b2c1e2f4b57.tar.gz gcc-e2a606cb27a100bb5fd96dcd62da9b2c1e2f4b57.tar.bz2 | |
(i386_branch_cost, i386_branch_cost_string): Added.
From-SVN: r12584
| -rw-r--r-- | gcc/config/i386/i386.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 9c9a656..9ce6f26 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -264,6 +264,7 @@ extern int ix86_isa; { "align-loops=", &i386_align_loops_string }, \ { "align-jumps=", &i386_align_jumps_string }, \ { "align-functions=", &i386_align_funcs_string }, \ + { "branch-cost=", &i386_branch_cost_string }, \ SUBTARGET_OPTIONS \ } @@ -530,9 +531,6 @@ extern int ix86_isa; #define MODES_TIEABLE_P(MODE1, MODE2) ((MODE1) == (MODE2)) -/* Provide the cost of a branch. Exact meaning under development. */ -#define BRANCH_COST (TARGET_PENTIUMPRO ? 5 : 1) - /* Specify the registers used for certain standard purposes. The values of these macros are register numbers. */ @@ -2016,7 +2014,7 @@ while (0) /* A C expression for the cost of a branch instruction. A value of 1 is the default; other values are interpreted relative to that. */ -/* #define BRANCH_COST 1 */ +#define BRANCH_COST i386_branch_cost /* Define this macro as a C expression which is nonzero if accessing less than a word of memory (i.e. a `char' or a `short') is no @@ -2636,10 +2634,12 @@ extern char *i386_regparm_string; /* # registers to use to pass args */ extern char *i386_align_loops_string; /* power of two alignment for loops */ extern char *i386_align_jumps_string; /* power of two alignment for non-loop jumps */ extern char *i386_align_funcs_string; /* power of two alignment for functions */ +extern char *i386_branch_cost_string; /* values 1-5: see jump.c */ extern int i386_regparm; /* i386_regparm_string as a number */ extern int i386_align_loops; /* power of two alignment for loops */ extern int i386_align_jumps; /* power of two alignment for non-loop jumps */ extern int i386_align_funcs; /* power of two alignment for functions */ +extern int i386_branch_cost; /* values 1-5: see jump.c */ extern char *hi_reg_name[]; /* names for 16 bit regs */ extern char *qi_reg_name[]; /* names for 8 bit regs (low) */ extern char *qi_high_reg_name[]; /* names for 8 bit regs (high) */ |