[Webkit-unassigned] [Bug 142629] New: REGRESSION(r181326): It made dfg-int16array.js and dfg-int8array.js fail on AArch64 Linux

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=142629

            Bug ID: 142629
           Summary: REGRESSION(r181326): It made dfg-int16array.js and
                    dfg-int8array.js fail on AArch64 Linux
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ossy at webkit.org
                CC: andersca at apple.com, cgarcia at igalia.com,
                    mcatanzaro at igalia.com
            Blocks: 108645, 142524

http://trac.webkit.org/changeset/181326 made the following tests fail on AArch64 Linux:
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-no-llint
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-ftl-eager-no-cjit
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int8array.js.layout-dfg-eager-no-cjit
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int8array.js.layout-no-llint
FAIL: jsc-layout-tests.yaml/js/script-tests/dfg-int8array.js.layout-ftl-eager-no-cjit

jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: DIFF FAILURE!
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: --- ../.tests/jsc-layout-tests.yaml/js/dfg-int16array-expected.txt    2015-03-12 09:21:28.000000000 -0700
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: +++ ../jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit.out   2015-03-12 10:36:15.100000000 -0700
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: @@ -5126,12 +5126,12 @@
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 20, 30840) is 30840
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 21, -31097) is -31097
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 22, 31354) is 31354
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: -PASS getter(a, 23, -31611) is -31611
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: +FAIL getter(a, 23, -31611) should be -31611. Was -31611.
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 24, 31868) is 31868
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: -PASS getter(a, 25, -32125) is -32125
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: +FAIL getter(a, 25, -32125) should be -32125. Was -32125.
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 26, 32382) is 32382
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: -PASS getter(a, 27, -32639) is -32639
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: -PASS getter(a, 28, 32896) is -32640
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: +FAIL getter(a, 27, -32639) should be -32639. Was -32639.
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit: +FAIL getter(a, 28, 32896) should be -32640. Was -32640.
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 29, -33153) is 32383
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 30, 33410) is -32126
jsc-layout-tests.yaml/js/script-tests/dfg-int16array.js.layout-dfg-eager-no-cjit:  PASS getter(a, 31, -33667) is 31869

All of these failure is similar, X != X, how is it possible?

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