[Committed] Tweak new test case gcc.target/i386/dec-cmov-2.c
With -m32, this test case is sensitive to the instruction timings of
the target (for ifcvt to normalize bar() to foo() during the ce1 pass,
prior to the transformations actually being tested here). Specifying
-march=core2 prevents these failures. Committed as obvious.
2021-07-31 Roger Sayle <ro...@nextmovesoftware.com>
gcc/testsuite/ChangeLog
* gcc.target/i386/dec-cmov-2.c: Require -march=core2 with -m32.
Roger
--
-----Original Message-----
From: sunil.k.pandey <skpan...@sc.intel.com>
Sent: 31 July 2021 08:13
To: gcc-patches@gcc.gnu.org; gcc-regress...@gcc.gnu.org;
ro...@nextmovesoftware.com
Subject: [r12-2640 Regression] FAIL: gcc.target/i386/dec-cmov-2.c
scan-assembler-not test(l|q|w) on Linux/x86_64
On Linux/x86_64,
f7bf03cf69ccb7dcfa0320774aa7f3c51344dada is the first bad commit commit
f7bf03cf69ccb7dcfa0320774aa7f3c51344dada
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date: Fri Jul 30 22:46:32 2021 +0100
Decrement followed by cmov improvements.
caused
FAIL: gcc.target/i386/dec-cmov-2.c scan-assembler-not test(l|q|w)
with GCC configured with
../../gcc/configure
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-2640/
usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet
--without-isl --enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/dec-cmov-2.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/dec-cmov-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact
me at skpgkp2 at gmail dot com)
