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perf expr: Move actions to the left.

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No functional change, just modifying whitespace. This creates additional
space for adding logic to actions in later changes.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: John Garry <john.garry@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandeep Dasgupta <sdasgup@google.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20210923074616.674826-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2021-09-23 00:46:09 -07:00 committed by Arnaldo Carvalho de Melo
parent e87576c5ac
commit c924e0cc05
1 changed files with 71 additions and 45 deletions
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116
tools/perf/util/expr.y
View File

@ -70,54 +70,80 @@ MIN | MAX | IF | ELSE | SMT_ON | NUMBER | '|' | '^' | '&' | '-' | '+' | '*' | '/
'<' | '>' | D_RATIO
all_expr: if_expr { *final_val = $1; }
;
if_expr:
expr IF expr ELSE expr { $$ = $3 ? $1 : $5; }
| expr
;
if_expr: expr IF expr ELSE expr
{
$$ = $3 ? $1 : $5;
}
| expr
;
expr: NUMBER
| ID {
struct expr_id_data *data;
expr: NUMBER
{
$$ = $1;
}
| ID
{
struct expr_id_data *data;
$$ = NAN;
if (expr__resolve_id(ctx, $1, &data) == 0)
$$ = expr_id_data__value(data);
$$ = NAN;
if (expr__resolve_id(ctx, $1, &data) == 0)
$$ = expr_id_data__value(data);
free($1);
}
| expr '|' expr { BINARY_LONG_OP($$, |, $1, $3); }
| expr '&' expr { BINARY_LONG_OP($$, &, $1, $3); }
| expr '^' expr { BINARY_LONG_OP($$, ^, $1, $3); }
| expr '<' expr { BINARY_OP($$, <, $1, $3); }
| expr '>' expr { BINARY_OP($$, >, $1, $3); }
| expr '+' expr { BINARY_OP($$, +, $1, $3); }
| expr '-' expr { BINARY_OP($$, -, $1, $3); }
| expr '*' expr { BINARY_OP($$, *, $1, $3); }
| expr '/' expr { if ($3 == 0) {
pr_debug("division by zero\n");
YYABORT;
}
$$ = $1 / $3;
}
| expr '%' expr { if ((long)$3 == 0) {
pr_debug("division by zero\n");
YYABORT;
}
$$ = (long)$1 % (long)$3;
}
| '-' expr %prec NEG { $$ = -$2; }
| '(' if_expr ')' { $$ = $2; }
| MIN '(' expr ',' expr ')' { $$ = $3 < $5 ? $3 : $5; }
| MAX '(' expr ',' expr ')' { $$ = $3 > $5 ? $3 : $5; }
| SMT_ON { $$ = smt_on() > 0; }
| D_RATIO '(' expr ',' expr ')' { if ($5 == 0) {
$$ = 0;
} else {
$$ = $3 / $5;
}
}
;
free($1);
}
| expr '|' expr { BINARY_LONG_OP($$, |, $1, $3); }
| expr '&' expr { BINARY_LONG_OP($$, &, $1, $3); }
| expr '^' expr { BINARY_LONG_OP($$, ^, $1, $3); }
| expr '<' expr { BINARY_OP($$, <, $1, $3); }
| expr '>' expr { BINARY_OP($$, >, $1, $3); }
| expr '+' expr { BINARY_OP($$, +, $1, $3); }
| expr '-' expr { BINARY_OP($$, -, $1, $3); }
| expr '*' expr { BINARY_OP($$, *, $1, $3); }
| expr '/' expr
{
if ($3 == 0) {
pr_debug("division by zero\n");
YYABORT;
}
$$ = $1 / $3;
}
| expr '%' expr
{
if ((long)$3 == 0) {
pr_debug("division by zero\n");
YYABORT;
}
$$ = (long)$1 % (long)$3;
}
| D_RATIO '(' expr ',' expr ')'
{
if ($5 == 0) {
$$ = 0;
} else {
$$ = $3 / $5;
}
}
| '-' expr %prec NEG
{
$$ = -$2;
}
| '(' if_expr ')'
{
$$ = $2;
}
| MIN '(' expr ',' expr ')'
{
$$ = $3 < $5 ? $3 : $5;
}
| MAX '(' expr ',' expr ')'
{
$$ = $3 > $5 ? $3 : $5;
}
| SMT_ON
{
$$ = smt_on() > 0 ? 1.0 : 0.0;
}
;
%%