[Webkit-unassigned] [Bug 151624] New: Fix the B3 build with GCC

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151624

            Bug ID: 151624
           Summary: Fix the B3 build with GCC
    Classification: Unclassified
           Product: WebKit
           Version: Other
          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: benjamin at webkit.org, fpizlo at apple.com,
                    ggaren at apple.com

../../Source/JavaScriptCore/b3/air/AirIteratedRegisterCoalescing.cpp: In lambda function:
../../Source/JavaScriptCore/b3/air/AirIteratedRegisterCoalescing.cpp:154:13: internal compiler error: in gimplify_var_or_parm_decl, at gimplify.c:1741
             inst.forEachTmp([&] (Tmp& otherArg, Arg::Role role, Arg::Type otherArgType) {
             ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Preprocessed source stored into /tmp/ccVqyjJp.out file, please attach this to your bugreport.

It is a reported and fixed GCC bug - https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62272
But unfortunately it is fixed only in GCC 5.2 and the bug is still valid in GCC 4.9.3.

Can we workaround this util we require at least GCC 5.2 version ?

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