wine/gecko
0
0
Fork 0
mirror of https://gitlab.winehq.org/wine/wine-gecko.git synced 2024-09-13 09:24:08 -07:00
Code Issues Packages Projects Releases Wiki Activity

Sync record_JSOP_LAMBDA with interpreter (517637, r=jorendorff).

Browse Source
This commit is contained in:
Brendan Eich 2009-09-21 16:41:16 -07:00
parent e102fc5e1c
commit 4bb103007a
3 changed files with 32 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
js/src/jstracer.cpp
View File

@ -12633,7 +12633,21 @@ TraceRecorder::record_JSOP_LAMBDA()
JSFunction* fun;
fun = cx->fp->script->getFunction(getFullIndex());
/*
* Emit code to clone a null closure parented by this recorder's global
* object, in order to preserve function object evaluation rules observable
* via identity and mutation. But don't clone if our result is consumed by
* JSOP_SETMETHOD or JSOP_INITMETHOD, since we optimize away the clone for
* these combinations and clone only if the "method value" escapes.
*/
if (FUN_NULL_CLOSURE(fun) && OBJ_GET_PARENT(cx, FUN_OBJECT(fun)) == globalObj) {
JSOp op2 = JSOp(cx->fp->regs->pc[JSOP_LAMBDA_LENGTH]);
if (op2 == JSOP_SETMETHOD || op2 == JSOP_INITMETHOD) {
stack(0, INS_CONSTOBJ(FUN_OBJECT(fun)));
return JSRS_CONTINUE;
}
LIns *proto_ins;
CHECK_STATUS(getClassPrototype(JSProto_Function, proto_ins));

9
js/src/trace-test/tests/basic/testMethodInitDeref.js Normal file
View File

@ -0,0 +1,9 @@
for (var j = 0; j < 7; ++j)
({x: function () {}}).x;
checkStats({
recorderStarted: 1,
recorderAborted: 0,
traceCompleted: 1,
sideExitIntoInterpreter: 1
});

9
js/src/trace-test/tests/basic/testMethodInitUneval.js Normal file
View File

@ -0,0 +1,9 @@
for (var j = 0; j < 7; ++j)
uneval({x: function () {}});
checkStats({
recorderStarted: 1,
recorderAborted: 0,
traceCompleted: 1,
sideExitIntoInterpreter: 4
});