[PATCH 2/2] perf expr: Add < and > operators

[Ian Rogers]

These are broadly useful and necessary for Intel's top-down analysis.

Signed-off-by: Ian Rogers <irog...@google.com>
---
 tools/perf/util/expr.l | 2 ++
 tools/perf/util/expr.y | 5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 298d86660a96..13e5e3c75f56 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -111,6 +111,8 @@ else                { return ELSE; }
 "|"            { return '|'; }
 "^"            { return '^'; }
 "&"            { return '&'; }
+"<"            { return '<'; }
+">"            { return '>'; }
 "-"            { return '-'; }
 "+"            { return '+'; }
 "*"            { return '*'; }
diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
index fe145344bb39..5fcb98800f9c 100644
--- a/tools/perf/util/expr.y
+++ b/tools/perf/util/expr.y
@@ -41,6 +41,7 @@ static double d_ratio(double val0, double val1)
 %left '|'
 %left '^'
 %left '&'
+%left '<' '>'
 %left '-' '+'
 %left '*' '/' '%'
 %left NEG NOT
@@ -73,7 +74,7 @@ other: ID
 |
 MIN | MAX | IF | ELSE | SMT_ON | NUMBER | '|' | '^' | '&' | '-' | '+' | '*' | 
'/' | '%' | '(' | ')' | ','
 |
-D_RATIO
+'<' | '>' | D_RATIO
 
 all_expr: if_expr                      { *final_val = $1; }
        ;
@@ -94,6 +95,8 @@ expr:   NUMBER
        | expr '|' expr         { $$ = (long)$1 | (long)$3; }
        | expr '&' expr         { $$ = (long)$1 & (long)$3; }
        | expr '^' expr         { $$ = (long)$1 ^ (long)$3; }
+       | expr '<' expr         { $$ = $1 < $3; }
+       | expr '>' expr         { $$ = $1 > $3; }
        | expr '+' expr         { $$ = $1 + $3; }
        | expr '-' expr         { $$ = $1 - $3; }
        | expr '*' expr         { $$ = $1 * $3; }
-- 
2.27.0.278.ge193c7cf3a9-goog