[Bug rtl-optimization/64164] [4.9/5/6 Regression] one more stack slot used due to one less inlining level

["schwab@linux-m68k.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64164

--- Comment #45 from Andreas Schwab <schwab@linux-m68k.org> ---
It also breaks a lot of tests on m68k, eg:

$ gcc/xgcc -B gcc/ ../gcc/testsuite/gcc.dg/pr17957.c 
../gcc/testsuite/gcc.dg/pr17957.c: In function ‘vadd’:
../gcc/testsuite/gcc.dg/pr17957.c:6:1: internal compiler error: in
expand_one_stack_var_1, at cfgexpand.c:1221
 vadd (void)
 ^
0x662055 expand_one_stack_var_1
        ../../gcc/cfgexpand.c:1221
0x670685 expand_one_ssa_partition
        ../../gcc/cfgexpand.c:1295
0x670685 expand_used_vars
        ../../gcc/cfgexpand.c:1940
0x671e20 execute
        ../../gcc/cfgexpand.c:6084
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Subject: [Bug target/64003] valgrind complains about get_attr_length_nobnd in insn-attrtab.c from i386.md
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64003

Uroš Bizjak <ubizjak at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |ASSIGNED
           Assignee|enkovich.gnu at gmail dot com      |ubizjak at gmail dot com

--- Comment #31 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 36051
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36051&action=edit
Patch that introduces ADJUST_INSN_LENGTH

Patch that introduces ADJUST_INSN_LENGTH and tags relevant insns with
maybe_prefix_bnd attribute.
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Subject: [Bug plugins/66991] GCCPLUGIN_VERSION_MAJOR == 5 & GCCPLUGIN_VERSION_MINOR == 5 for GCC 5.1.1
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf991

--- Comment #2 from Basile Starynkevitch <basile at starynkevitch dot net> ---
It looks like this bug is corrected in GCC 5.2 (I'm compiling the FSF tree).