[Bug gcov-profile/59527] [4.9 Regression] ICE: in fixup_reorder_chain, at cfgrtl.c:3739 during PGO Firefox build

[tejohnson at google dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59527

--- Comment #2 from Teresa Johnson <tejohnson at google dot com> ---
I will take a look and report back. -freorder-blocks-and-partition was
recently enabled by default, which presumably exposed this issue.
Thanks,
Teresa

On Mon, Dec 16, 2013 at 8:21 AM, octoploid at yandex dot com
<gcc-bugzilla@gcc.gnu.org> wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59527
>
> --- Comment #1 from Markus Trippelsdorf <octoploid at yandex dot com> ---
> Created attachment 31447
>   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31447&action=edit
> unreduced testcase
>
>  % g++ -w -r -nostdlib -fprofile-use -fprofile-correction -march=amdfam10
> -fno-exceptions -std=gnu++0x -O3 test.ii
> In file included from /var/tmp/moz-build-dir/js/src/Unified_cpp_9.cpp:101:0:
> /var/tmp/mozilla-central/js/src/vm/Stack.cpp: In member function
> ‘js::ScriptFrameIter& js::ScriptFrameIter::operator++()’:
> /var/tmp/mozilla-central/js/src/vm/Stack.cpp:717:1: internal compiler error: in
> fixup_reorder_chain, at cfgrtl.c:3739
>
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