aboutsummaryrefslogtreecommitdiff
path: root/tools/js-optimizer.js
diff options
context:
space:
mode:
authorAlon Zakai <alonzakai@gmail.com>2012-05-12 12:02:11 -0700
committerAlon Zakai <alonzakai@gmail.com>2012-05-12 12:02:11 -0700
commitb9f86b8fa3edc99805b5ace739df9c44ba8dc352 (patch)
tree771f4f25b310ac5701a63b2cf4bda5d780b55366 /tools/js-optimizer.js
parent039705fdcfc7bf6d1fe5e51494c6880b484f7cf3 (diff)
print saved vars in registerize
Diffstat (limited to 'tools/js-optimizer.js')
-rw-r--r--tools/js-optimizer.js3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js
index f968fec2..d438094b 100644
--- a/tools/js-optimizer.js
+++ b/tools/js-optimizer.js
@@ -1176,6 +1176,7 @@ function registerize(ast, conservative) {
var fullNames = {};
var loopRegs = [];
var loops = 0;
+ var saved = 0;
function decUse(name) {
if (!varUses[name]) return false; // no uses left, or not a relevant variable
var reg = varRegs[name];
@@ -1183,6 +1184,7 @@ function registerize(ast, conservative) {
// acquire register
if (freeRegs.length > 0) {
reg = freeRegs.pop();
+ saved++;
} else {
reg = nextReg++;
fullNames[reg] = 'r' + reg; // TODO: even smaller names
@@ -1256,6 +1258,7 @@ function registerize(ast, conservative) {
}
getStatements(fun).unshift(['var', vars]);
}
+ printErr(fun[1] + ': saved ' + saved + ' vars through registerization');
});
}