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  1. JDK
  2. JDK-8276846

JDK-8273416 is incomplete for UseSSE=1

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    • Resolved In Build:
      b24

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        Description

        Extended testing shows that JDK-8273416 was not complete: the tests still fail with -XX:UseAVX=0 -XX:UseSSE=1. For example:

        $ CONF=linux-x86-server-fastdebug make test TEST=compiler/loopopts/TestCastFFAtPhi.java TEST_VM_OPTS="-XX:UseAVX=0 -XX:UseSSE=1"
        o306 ConvF2I === _ o307 [[o250 o264 4 9 ]]

        --N: o306 ConvF2I === _ o307 [[o250 o264 4 9 ]]

           --N: o307 CastFF === o371 o375 [[o306 ]] #float unconditional dependency
           REGFPR 0 castFF_PR
           REGFPR1 0 castFF_PR

              --N: o375 Phi === o371 o422 o82 [[o307 ]] #float
              REGFPR 0 REGFPR
              REGFPR1 0 REGFPR1
              REGF 0 REGF
              LEGREGF 0 LEGREGF
              VLREGF 0 VLREGF

        # To suppress the following error report, specify this argument
        # after -XX: or in .hotspotrc: SuppressErrorAt=/matcher.cpp:1681
        #
        # A fatal error has been detected by the Java Runtime Environment:
        #
        # Internal Error (/home/shade/trunks/jdk/src/hotspot/share/opto/matcher.cpp:1681), pid=1643148, tid=1643164
        # assert(false) failed: bad AD file


        The predicates in x86_32.ad should probably be "UseSSE > 0" and "UseSSE == 0".

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                Assignee:
                shade Aleksey Shipilev
                Reporter:
                shade Aleksey Shipilev
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