I want to implement PGO on js-optimizer step. But it hard to understand
format of AST, is there are some docs about it? Currently I try to simply
call PGO_INVOKE(1) in beginning of each function:
function pgo(ast) {
var PATCHED_FUNCS = set();
traverseGeneratedFunctions(ast, function(func) {
var sig = func[1];
if (sig in PATCHED_FUNCS) return null;
var children = func[3];
children.unshift(['call', ['name', 'PGO_INVOKE'], [['num', 1]]]);
PATCHED_FUNCS[sig] = 1;
});
}
But after pgo step, I see an error:
bad, seeing a var in need of fixing
bad, seeing a var in need of fixing: ["defun",
"__ZNSt3__26vectorI5VideoNS_9allocatorIS1_EEE21__push_back_slow_pathIRKS1_EEvOT_",
["$0", "$1"], [["call", ["name", "PGO_INVOKE"], [["num", 1]]], ["stat",
["assign", true, ["name", "$0"], ["binary", "|", ["name", "$0"], ["num",
0]]]], ["stat", bad, seeing a var in need of fixing["assign": ,
["defuntrue, ", "__ZN9Texture2D11imageLoadedEPviib", ["name", "[$1""]$0", ,
[""$1"binary", ", "$2", "$3|"", , "["name$4""], ", [$1"][, "call["",
num"[", 0name", "PGO_INVOKE"], [[]"num]"]], , 1[]]], ["stat", ["assign"",
true...
Can you give me some advice?
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