[Bug 38653] GCC 5.1 breaks -O2 optimization with 64-bit Wine

https://bugs.winehq.org/show_bug.cgi?id=38653

--- Comment #10 from Austin English  ---
Introduced by:
[austin@localhost gcc]$ git bisect bad
96c09a553634967a94b5fd4ec3c46b58ffca1700 is the first bad commit
commit 96c09a553634967a94b5fd4ec3c46b58ffca1700
Author: uros 
Date:   Sun Sep 21 15:13:14 2014 +0000

* config/i386/i386.c (ix86_expand_call): Generate MS->SYSV extra
        clobbered registers using clobber_reg.  Remove UNSPEC decoration.
        * config/i386/i386.md (unspec) <UNSPEC_MS_TO_SYSV_CALL>: Remove.
        (*call_rex64_ms_sysv): Remove.
        (*call_value_rex64_ms_sysv): Ditto.
        * config/i386/predicates.md (call_rex64_ms_sysv_operation): Remove.

testsuite/ChangeLog:

* gcc.target/i386/avx-vzeroupper-16.c (dg-final): Remove check
        for call_value_rex64_ms_sysv.
        * gcc.target/i386/avx-vzeroupper-17.c (dg-final): Ditto.
        * gcc.target/i386/avx-vzeroupper-18.c (dg-final): Remove check
        for call_rex64_ms_sysv.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215428
138bc75d-0d04-0410-961f-82ee72b054a4

:040000 040000 106752531e7926ba25b0617448d4ba45911c9dad
83a0c6ad4d406be569059bf7b59320804024d1c3 M    gcc

still present in HEAD:
[austin@localhost gcc]$ git show --oneline
7c62dfb PR c/66220: Fix false positive from -Wmisleading-indentation