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13:35:43  <caitp>https://gist.github.com/caitp/20f4ba77fc0d03033552#comment-1465363 I just can't tell where the TF implementation is messing up
13:35:53  <caitp>it looks right
13:38:00  <caitp>maybe a subsequent optimization pass breaks it
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13:56:56  <arv>Maybe there is a bug in arm64 tf?
13:57:22  <caitp>probably, since it doesn't break on any other arches
13:57:37  <arv>I would ask mstarzinger or bmeurer
14:02:52  <caitp>the hole-check in the lowered-generic graph looks weird
14:03:45  <caitp>compare <hole check> -> branch if true <empty> -> branch if false <empty> -> merge
14:10:30  <caitp>hm nah just misreading that
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16:03:34  <caitp>you know what
16:04:00  <caitp>replacing `if (FLAG_debug_code && op == Token::INIT_LET) {` with `if (generate_debug_code_ && op == Token::INIT_LET) {` in full-codegen-arm64.cc fixes it
16:04:06  <caitp>and matches the other arches better
16:04:10  <caitp>derp
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16:52:09  <caitp>arv: you can confirm that https://codereview.chromium.org/1157543007 matches the other full-codegen implementations right?
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17:30:00  <aklein>caitp: are you sure your test only fails on arm64?
17:30:10  <aklein>I thought I saw other failures on the bots yesterday after it landed
17:30:43  <aklein>caitp: there was this failure on Linux nosnap debug: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%201/builds/582/steps/Check/logs/default-parameters-de..
17:30:52  <caitp>I only saw the arm failure
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17:31:02  <caitp>it's passing locally on arm and x86/x86_64
17:31:18  <aklein>hmm, chrome failed to let me copy and paste the url
17:31:19  <aklein>fail
17:31:27  <caitp>that looks like x86 right?
17:31:47  <caitp>but i didn't try a nosnap build, which would also be affected by the generate_debug_code_ thing.
17:31:56  <aklein>http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%201/builds/582
17:32:00  <aklein>yeah, ia32
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17:33:48  <caitp>alright, I'll add the other one too
17:34:25  <caitp>actually it looks like it's right here
17:39:12  <aklein>yeah, that particular line is already correct in ia32, so this may be a different failure
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18:16:46  <caitp>hmm, nosnap fails everywhere
18:16:49  <caitp>well then
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19:58:13  <ncthom91>hi all. I'm trying to execute a script with v8::Script::Run, and I'd like to be able to catch errors, but it's unclear from the documentation what kinds of exceptions may be raised
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21:03:21  <trungl-bot>Tree closed by buildbot@chromium.org: Tree is closed (Automatic: "Check" on http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/2535 "V8 Linux - arm64 - sim - MSAN" from 4347d56a6919ae06a70e4a4a8b2f1179cf47bc7e: bbudge@chromium.org)
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21:10:30  <caitp->arv, the security thing I was referring to was sort of mentioned in the old Window#toString comment left by someone else, referring to context switch/access check being needed
21:10:38  <caitp->which iirc the api method never did
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21:16:26  <trungl-bot>Tree opened by bbudge@google.com: Tree is open (reverted)
21:17:08  <caitp->(which is probably not enough details to leak a vulnerability to anyone nefarious)
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23:48:36  <trungl-bot>Tree closed by buildbot@chromium.org: Tree is closed (Automatic: "Check" on http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%202/builds/609 "V8 Linux - nosnap - debug - 2" from a18a94ef364b66dd9329db0d32c415503cfa3616: bbudge@chromium.org,mbrandy@us.ibm.com)
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