[r11-4664 Regression] FAIL: gcc.dg/guality/pr54519-4.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects -DPREVENT_OPTIMIZATION line 22 y == 68 on Linux/x86_64

sunil.k.pandey skpandey@sc.intel.com
Wed Nov 4 01:30:07 GMT 2020


On Linux/x86_64,

104ca9cfa60aa1d5dd6666d3574bed012d394e8c is the first bad commit
commit 104ca9cfa60aa1d5dd6666d3574bed012d394e8c
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Nov 3 12:28:03 2020 +0100

    Save some memory at debug stream-in time

caused

FAIL: gcc.dg/guality/pr54519-4.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  -DPREVENT_OPTIMIZATION line 22 y == 68
FAIL: gcc.dg/guality/pr54519-4.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  -DPREVENT_OPTIMIZATION line 22 y == 68

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-4664/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="guality.exp=gcc.dg/guality/pr54519-4.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54519-4.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54519-4.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="guality.exp=gcc.dg/guality/pr54519-4.c --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)


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