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tcg: Remove TCG_CT_REG

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This wasn't actually used for anything, really.  All variable
operands must accept registers, and which are indicated by the
set in TCGArgConstraint.regs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-09-03 15:56:24 -07:00
parent 66792f90f1
commit 74a117906b
11 changed files with 4 additions and 49 deletions
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15
tcg/tcg.c
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@ -2194,21 +2194,14 @@ static void tcg_dump_ops(TCGContext *s, bool have_prefs)
/* we give more priority to constraints with less registers */
static int get_constraint_priority(const TCGOpDef *def, int k)
{
const TCGArgConstraint *arg_ct;
const TCGArgConstraint *arg_ct = &def->args_ct[k];
int n;
int i, n;
arg_ct = &def->args_ct[k];
if (arg_ct->ct & TCG_CT_ALIAS) {
/* an alias is equivalent to a single register */
n = 1;
} else {
if (!(arg_ct->ct & TCG_CT_REG))
return 0;
n = 0;
for(i = 0; i < TCG_TARGET_NB_REGS; i++) {
if (tcg_regset_test_reg(arg_ct->regs, i))
n++;
}
n = ctpop64(arg_ct->regs);
}
return TCG_TARGET_NB_REGS - n + 1;
}
@ -2276,7 +2269,7 @@ static void process_op_defs(TCGContext *s)
int oarg = *ct_str - '0';
tcg_debug_assert(ct_str == tdefs->args_ct_str[i]);
tcg_debug_assert(oarg < def->nb_oargs);
tcg_debug_assert(def->args_ct[oarg].ct & TCG_CT_REG);
tcg_debug_assert(def->args_ct[oarg].regs != 0);
/* TCG_CT_ALIAS is for the output arguments.
The input is tagged with TCG_CT_IALIAS. */
def->args_ct[i] = def->args_ct[oarg];