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authorrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>2000-04-07 09:24:45 +0000
committerrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>2000-04-07 09:24:45 +0000
commit406034fa4b563e02d1570ec6d1457688c932536d (patch)
treea36fbb677db9b9d77dd79d4991fb6f4bd8349ebc /gcc/genconfig.c
parent40977116f1eefb8672a9403f109f73461963545f (diff)
downloadgcc-406034fa4b563e02d1570ec6d1457688c932536d.tar.gz
* rtl.def (COND_EXEC): New.
* rtl.h (COND_EXEC_TEST, COND_EXEC_CODE): New. * tm.texi (MAX_CONDITIONAL_EXECUTE): Document. * genconfig.c (have_cond_arith_flag): Remove. (have_cond_exec_flag): New. (walk_insn_part): Detect COND_EXEC, not arithmetic in IF_THEN_ELSE. (main): Print HAVE_conditional_execution. * haifa-sched.c (haifa_classify_insn): Recognize COND_EXEC. (sched_analyze_insn, print_pattern): Likewise. * reload.c (find_equiv_reg): Likewise. * rtlanal.c (reg_referenced_p): Likewise. (note_stores, dead_or_set_regno_p): Likewise. (reg_overlap_mentioned_p): Rewrite to use a switch. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@32997 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/genconfig.c')
-rw-r--r--gcc/genconfig.c30
1 files changed, 12 insertions, 18 deletions
diff --git a/gcc/genconfig.c b/gcc/genconfig.c
index 8c8ee9d6520..65c8701ab22 100644
--- a/gcc/genconfig.c
+++ b/gcc/genconfig.c
@@ -39,7 +39,7 @@ static int max_dup_operands; /* Largest number of match_dup in any insn. */
static int max_clobbers_per_insn;
static int have_cc0_flag;
static int have_cmove_flag;
-static int have_cond_arith_flag;
+static int have_cond_exec_flag;
static int have_lo_sum_flag;
static int have_peephole_flag;
static int have_peephole2_flag;
@@ -131,21 +131,17 @@ walk_insn_part (part, recog_p, non_pc_set_src)
two arms of the IF_THEN_ELSE are both MATCH_OPERAND. Otherwise,
we have some specific IF_THEN_ELSE construct (like the doz
instruction on the RS/6000) that can't be used in the general
- context we want it for. If the first operand is an arithmetic
- operation and the second is a MATCH_OPERNAND, show we have
- conditional arithmetic. */
+ context we want it for. */
if (recog_p && non_pc_set_src
&& GET_CODE (XEXP (part, 1)) == MATCH_OPERAND
&& GET_CODE (XEXP (part, 2)) == MATCH_OPERAND)
have_cmove_flag = 1;
- else if (recog_p && non_pc_set_src
- && (GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == '1'
- || GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == '2'
- || GET_RTX_CLASS (GET_CODE (XEXP (part, 1))) == 'c')
- && GET_CODE (XEXP (XEXP (part, 1), 0)) == MATCH_OPERAND
- && GET_CODE (XEXP (part, 2)) == MATCH_OPERAND)
- have_cond_arith_flag = 1;
+ break;
+
+ case COND_EXEC:
+ if (recog_p)
+ have_cond_exec_flag = 1;
break;
case REG: case CONST_INT: case SYMBOL_REF:
@@ -341,8 +337,9 @@ from the machine description file `md'. */\n\n");
/* This is conditionally defined, in case the user writes code which emits
more splits than we can readily see (and knows s/he does it). */
- printf ("#ifndef MAX_INSNS_PER_SPLIT\n#define MAX_INSNS_PER_SPLIT %d\n#endif\n",
- max_insns_per_split);
+ printf ("#ifndef MAX_INSNS_PER_SPLIT\n");
+ printf ("#define MAX_INSNS_PER_SPLIT %d\n", max_insns_per_split);
+ printf ("#endif\n");
if (have_cc0_flag)
printf ("#define HAVE_cc0\n");
@@ -350,11 +347,8 @@ from the machine description file `md'. */\n\n");
if (have_cmove_flag)
printf ("#define HAVE_conditional_move\n");
-#if 0
- /* Disabled. See the discussion in jump.c. */
- if (have_cond_arith_flag)
- printf ("#define HAVE_conditional_arithmetic\n");
-#endif
+ if (have_cond_exec_flag)
+ printf ("#define HAVE_conditional_execution\n");
if (have_lo_sum_flag)
printf ("#define HAVE_lo_sum\n");