207677 2020-02-12 19:50:13 -0800 Add options for debugging WASM code. 2020-02-13 08:03:19 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 mark.lam mark.lam fpizlo justin_michaud keith_miller msaboff rmorisset saam tzagallo webkit-bug-importer ysuzuki oldest_to_newest 1618376 0 mark.lam 2020-02-12 19:50:13 -0800 Specifically ... JSC_useBBQJIT - allows the BBQ JIT to be used if true JSC_useOMGJIT - allows the OMG JIT to be used if true JSC_useWasmLLIntPrologueOSR - allows prologue OSR from Wasm LLInt if true JSC_useWasmLLIntLoopOSR - allows loop OSR from Wasm LLInt if true JSC_useWasmLLIntEpilogueOSR - allows epilogue OSR from Wasm LLInt if true JSC_wasmFunctionIndexRangeToCompile=N:M - wasm function index range to allow compilation on, e.g. 1:100 1618377 1 webkit-bug-importer 2020-02-12 19:51:16 -0800 <rdar://problem/59411390> 1618378 2 390611 mark.lam 2020-02-12 19:57:59 -0800 Created attachment 390611 proposed patch. 1618379 3 390611 ysuzuki 2020-02-12 20:08:50 -0800 Comment on attachment 390611 proposed patch. View in context: https://bugs.webkit.org/attachment.cgi?id=390611&action=review r=me with one comment. > Source/JavaScriptCore/wasm/WasmSlowPaths.cpp:98 > + if (!Options::wasmFunctionIndexRangeToCompile().isInRange(codeBlock->functionIndex())) This functionIndex is per-wasm-module thing. If we have two wasm modules, they can have the same function index for different functions. Currently, I think this is OK. But maybe, should we introduce dfgWhitelist like mechanism instead? 1618380 4 mark.lam 2020-02-12 20:10:09 -0800 (In reply to Yusuke Suzuki from comment #3) > > Source/JavaScriptCore/wasm/WasmSlowPaths.cpp:98 > > + if (!Options::wasmFunctionIndexRangeToCompile().isInRange(codeBlock->functionIndex())) > > This functionIndex is per-wasm-module thing. If we have two wasm modules, > they can have the same function index for different functions. > Currently, I think this is OK. But maybe, should we introduce dfgWhitelist > like mechanism instead? Yes, I understood this to be the case. It will do for now. Thanks. 1618381 5 mark.lam 2020-02-12 20:12:30 -0800 Thanks for the review. Landed in r256500: <http://trac.webkit.org/r256500>. 1618482 6 tzagallo 2020-02-13 08:03:19 -0800 These should all have been wrapped in UNLIKELY 390611 2020-02-12 19:57:59 -0800 2020-02-12 20:08:50 -0800 proposed patch. bug-207677.patch text/plain 15627 mark.lam SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMjU2NDk5KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDM4IEBA CisyMDIwLTAyLTEyICBNYXJrIExhbSAgPG1hcmsubGFtQGFwcGxlLmNvbT4KKworICAgICAgICBB ZGQgb3B0aW9ucyBmb3IgZGVidWdnaW5nIFdBU00gY29kZS4KKyAgICAgICAgaHR0cHM6Ly9idWdz LndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIwNzY3NworICAgICAgICA8cmRhcjovL3Byb2Js ZW0vNTk0MTEzOTA+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAg ICAgICAgU3BlY2lmaWNhbGx5IC4uLgorCisgICAgICAgICAgICBKU0NfdXNlQkJRSklUICAgICAg 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