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Strange results calculating a square root in a loop https://bugs.webkit.org/show_bug.cgi?id=104247 <rdar://problem/12826880> Reviewed by Oliver Hunt. Source/JavaScriptCore: Fixed the CFG simplification phase to ignore dead GetLocals in the first of the blocks under the merge. This fixes the assertion, and is also cleaner: our general rule is to not "revive" things that we've already proved to be dead. Also fixed some rotted debug code. * dfg/DFGCFGSimplificationPhase.cpp: (JSC::DFG::CFGSimplificationPhase::fixPossibleGetLocal): * dfg/DFGStructureCheckHoistingPhase.cpp: (JSC::DFG::StructureCheckHoistingPhase::run): LayoutTests: * fast/js/dfg-cfg-simplify-redundant-dead-get-local-expected.txt: Added. * fast/js/dfg-cfg-simplify-redundant-dead-get-local.html: Added. * fast/js/jsc-test-list: * fast/js/script-tests/dfg-cfg-simplify-redundant-dead-get-local.js: Added. (getDist): (calcError): Canonical link: https://commits.webkit.org/122563@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@136989 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2012-12-07 22:55:58 +00:00
Tests if the CFG simplifier gracefully handles the case where Block #1 and #2 are merged, #1 has a dead GetLocal, and #2 has a live GetLocal on the same local.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
fast/js/dfg-* tests should wait for the concurrent JIT https://bugs.webkit.org/show_bug.cgi?id=120723 Rubber stamped by Oliver Hunt. Convert more tests. * fast/js/dfg-branch-logical-not-peephole-around-osr-exit-expected.txt: * fast/js/dfg-branch-not-fail-expected.txt: * fast/js/dfg-byte-array-put-expected.txt: * fast/js/dfg-call-function-hit-watchpoint-expected.txt: * fast/js/dfg-call-method-hit-watchpoint-expected.txt: * fast/js/dfg-captured-var-get-local-expected.txt: * fast/js/dfg-cfa-merge-with-dead-use-at-tail-expected.txt: * fast/js/dfg-cfg-simplify-eliminate-set-local-type-check-then-branch-not-null-and-decrement-expected.txt: * fast/js/dfg-cfg-simplify-eliminate-set-local-type-check-then-branch-not-null-expected.txt: * fast/js/dfg-cfg-simplify-eliminate-set-local-type-check-then-typeof-expected.txt: * fast/js/dfg-cfg-simplify-phantom-get-local-on-same-block-set-local-expected.txt: * fast/js/dfg-cfg-simplify-redundant-dead-get-local-expected.txt: * fast/js/dfg-check-function-change-structure-expected.txt: * fast/js/jsc-test-list: * fast/js/script-tests/dfg-branch-logical-not-peephole-around-osr-exit.js: * fast/js/script-tests/dfg-branch-not-fail.js: * fast/js/script-tests/dfg-byte-array-put.js: * fast/js/script-tests/dfg-call-function-hit-watchpoint.js: * fast/js/script-tests/dfg-call-method-hit-watchpoint.js: * fast/js/script-tests/dfg-captured-var-get-local.js: * fast/js/script-tests/dfg-cfa-merge-with-dead-use-at-tail.js: * fast/js/script-tests/dfg-cfg-simplify-eliminate-set-local-type-check-then-branch-not-null-and-decrement.js: * fast/js/script-tests/dfg-cfg-simplify-eliminate-set-local-type-check-then-branch-not-null.js: * fast/js/script-tests/dfg-cfg-simplify-eliminate-set-local-type-check-then-typeof.js: * fast/js/script-tests/dfg-cfg-simplify-phantom-get-local-on-same-block-set-local.js: * fast/js/script-tests/dfg-cfg-simplify-redundant-dead-get-local.js: * fast/js/script-tests/dfg-check-function-change-structure.js: Canonical link: https://commits.webkit.org/138734@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@155122 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2013-09-05 15:54:07 +00:00
PASS array = []; calcError(); array[0] is 2.23606797749979 on all iterations including after DFG tier-up.
Strange results calculating a square root in a loop https://bugs.webkit.org/show_bug.cgi?id=104247 <rdar://problem/12826880> Reviewed by Oliver Hunt. Source/JavaScriptCore: Fixed the CFG simplification phase to ignore dead GetLocals in the first of the blocks under the merge. This fixes the assertion, and is also cleaner: our general rule is to not "revive" things that we've already proved to be dead. Also fixed some rotted debug code. * dfg/DFGCFGSimplificationPhase.cpp: (JSC::DFG::CFGSimplificationPhase::fixPossibleGetLocal): * dfg/DFGStructureCheckHoistingPhase.cpp: (JSC::DFG::StructureCheckHoistingPhase::run): LayoutTests: * fast/js/dfg-cfg-simplify-redundant-dead-get-local-expected.txt: Added. * fast/js/dfg-cfg-simplify-redundant-dead-get-local.html: Added. * fast/js/jsc-test-list: * fast/js/script-tests/dfg-cfg-simplify-redundant-dead-get-local.js: Added. (getDist): (calcError): Canonical link: https://commits.webkit.org/122563@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@136989 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2012-12-07 22:55:58 +00:00
PASS successfullyParsed is true
TEST COMPLETE