39151 2010-05-15 00:02:12 -0700 Incorrect codegen for slowcase of < in 64-bit 2010-05-15 12:22:51 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Other OS X 10.5 RESOLVED FIXED P2 Normal --- 1 oliver webkit-unassigned mjs oldest_to_newest 226175 0 oliver 2010-05-15 00:02:12 -0700 Incorrect codegen for slowcase of < in 64-bit 226180 1 56144 oliver 2010-05-15 00:07:07 -0700 Created attachment 56144 Patch 226211 2 56144 mrowe 2010-05-15 03:13:23 -0700 Comment on attachment 56144 Patch > diff --git a/JavaScriptCore/ChangeLog b/JavaScriptCore/ChangeLog > index 7ac6b3cb96d0c4ac0fb61816a54298b1f9641159..5dea41a05bd293fddb0671ffcec381b4dcea6a35 100644 > --- a/JavaScriptCore/ChangeLog > +++ b/JavaScriptCore/ChangeLog > @@ -1,3 +1,16 @@ > +2010-05-15 Oliver Hunt <oliver@apple.com> > + > + Reviewed by NOBODY (OOPS!). > + > + Incorrect codegen for slowcase of < in 64-bit > + https://bugs.webkit.org/show_bug.cgi?id=39151 > + > + Call the correct stud for the slowcases of the < operator. “stud” > diff --git a/JavaScriptCore/jit/JITArithmetic.cpp b/JavaScriptCore/jit/JITArithmetic.cpp > index e5a4620d8ba24162b9db52d39421267f71d6bebc..cd39b3ad01c1ff45e15551efbbe01f0c12b633fc 100644 > --- a/JavaScriptCore/jit/JITArithmetic.cpp > +++ b/JavaScriptCore/jit/JITArithmetic.cpp > @@ -370,7 +370,7 @@ void JIT::emitSlow_op_jnless(Instruction* currentInstruction, Vector<SlowCaseEnt > linkSlowCase(iter); > linkSlowCase(iter); > linkSlowCase(iter); > - JITStubCall stubCall(this, cti_op_jlesseq); > + JITStubCall stubCall(this, cti_op_jless); > stubCall.addArgument(op1, regT0); > stubCall.addArgument(op2, regT1); > stubCall.call(); Is it really correct for emitSlow_op_jnless to call cti_op_jless? I’d have expected it to call cti_op_jnless. 226293 3 mjs 2010-05-15 12:03:38 -0700 (In reply to comment #2) > > Is it really correct for emitSlow_op_jnless to call cti_op_jless? I’d have expected it to call cti_op_jnless. Yes, it's correct, there is no cti_op_jnless. The following branch reverses the sense of the comparison. 226294 4 56144 mjs 2010-05-15 12:04:56 -0700 Comment on attachment 56144 Patch JavaScriptCore/ChangeLog:8 + Call the correct stud for the slowcases of the < operator. Typo as already noted by Mark. r=me if you fix that. 226300 5 oliver 2010-05-15 12:22:51 -0700 Committed r59547: <http://trac.webkit.org/changeset/59547> 56144 2010-05-15 00:07:07 -0700 2010-05-15 12:04:56 -0700 Patch bug-39151-20100515000705.patch text/plain 57583 oliver ZGlmZiAtLWdpdCBhL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZyBiL0phdmFTY3JpcHRDb3JlL0No YW5nZUxvZwppbmRleCA3YWM2YjNjYjk2ZDBjNGFjMGZiNjE4MTZhNTQyOThiMWY5NjQxMTU5Li41 ZGVhNDFhMDViZDI5M2ZkZGIwNjcxZmZjZWMzODFiNGRjZWE2YTM1IDEwMDY0NAotLS0gYS9KYXZh U2NyaXB0Q29yZS9DaGFuZ2VMb2cKKysrIGIvSmF2YVNjcmlwdENvcmUvQ2hhbmdlTG9nCkBAIC0x LDMgKzEsMTYgQEAKKzIwMTAtMDUtMTUgIE9saXZlciBIdW50ICA8b2xpdmVyQGFwcGxlLmNvbT4K KworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBJbmNvcnJl Y3QgY29kZWdlbiBmb3Igc2xvd2Nhc2Ugb2YgPCBpbiA2NC1iaXQKKyAgICAgICAgaHR0cHM6Ly9i dWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTM5MTUxCisKKyAgICAgICAgQ2FsbCB0aGUg Y29ycmVjdCBzdHVkIGZvciB0aGUgc2xvd2Nhc2VzIG9mIHRoZSA8IG9wZXJhdG9yLgorCisgICAg 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