[r12-5292 Regression] FAIL: gcc.dg/tree-ssa/modref-dse-5.c scan-tree-dump dse2 "Deleted dead store: wrap" on Linux/x86_64

sunil.k.pandey skpandey@sc.intel.com
Tue Nov 16 19:27:03 GMT 2021


On Linux/x86_64,

e69b7c5779863469479698f863ab25e0d9b4586e is the first bad commit
commit e69b7c5779863469479698f863ab25e0d9b4586e
Author: Jan Hubicka <jh@suse.cz>
Date:   Tue Nov 16 09:15:39 2021 +0100

    Fix uninitialized access in merge_call_side_effects

caused

FAIL: gcc.dg/tree-ssa/modref-dse-5.c scan-tree-dump dse2 "Deleted dead store: wrap"

with GCC configured with

../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-5292/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="tree-ssa.exp=gcc.dg/tree-ssa/modref-dse-5.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/modref-dse-5.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/modref-dse-5.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/modref-dse-5.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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