[llvm-bugs] [Bug 36824] New: Merge r327863 into the 6.0 branch : [Driver] Avoid invalidated iterator in insertTargetAndModeArgs

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=36824

            Bug ID: 36824
           Summary: Merge r327863 into the 6.0 branch : [Driver] Avoid
                    invalidated iterator in insertTargetAndModeArgs
           Product: clang
           Version: 6.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: mgorny at gentoo.org
                CC: llvm-bugs at lists.llvm.org
            Blocks: 36649

commit 3bd89a4b0543a84457046c08b80149b1c8d358f5
Author: Serge Pavlov <sepavloff at gmail.com>
Date:   Mon Mar 19 17:13:43 2018

    [Driver] Avoid invalidated iterator in insertTargetAndModeArgs

    Doing an .insert() can potentially invalidate iterators by reallocating the
    vector's storage. When all the stars align just right, this causes
segfaults
    or glibc aborts.

    Gentoo Linux bug (crashes while building Chromium):
https://bugs.gentoo.org/650082.

    Patch by Hector Martin!

    Differential Revision: https://reviews.llvm.org/D44607


    git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@327863
91177308-0d34-0410-b5e6-96231b3b80d8


Referenced Bugs:

https://bugs.llvm.org/show_bug.cgi?id=36649
[Bug 36649] [meta] 6.0.1 Release Blockers
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