https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69014
Bug ID: 69014
Summary: [4.9/5/6 Regression] gcc.c-torture/execute/991023-1.c
FAILs with -Os -fmodulo-sched -fno-tree-vrp
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: armv7a-*-linux-gnueabi
Created attachment 37107
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37107&action=edit
testcase (gcc.c-torture/execute/991023-1.c)
Output:
$ armv7a-hardfloat-linux-gnueabi-gcc -Os -fmodulo-sched -fno-tree-vrp
testcase.c
$ qemu-arm ./a.out
qemu: uncaught target signal 6 (Aborted) - core dumped
Aborted
$ armv7a-hardfloat-linux-gnueabi-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-trunk-231884-checking-yes-rtl-df-nographite-armv7a-hardfloat/bin/armv7a-hardfloat-linux-gnueabi-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-231884-checking-yes-rtl-df-nographite-armv7a-hardfloat/bin/../libexec/gcc/armv7a-hardfloat-linux-gnueabi/6.0.0/lto-wrapper
Target: armv7a-hardfloat-linux-gnueabi
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-checking=yes,rtl,df --without-cloog --without-ppl --without-isl
--with-float=hard --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=armv7a-hardfloat-linux-gnueabi
--with-ld=/usr/bin/armv7a-hardfloat-linux-gnueabi-ld
--with-as=/usr/bin/armv7a-hardfloat-linux-gnueabi-as
--with-sysroot=/usr/armv7a-hardfloat-linux-gnueabi --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-231884-checking-yes-rtl-df-nographite-armv7a-hardfloat
Thread model: posix
gcc version 6.0.0 20151221 (experimental) (GCC)
Other targets (powerpc[64], aarch64, i686, x86_64, x32) do not have this
problem.
Tested revisions:
r231884 - FAIL
5-branch r231870 - FAIL
4_9-branch r231865 - FAIL
4_8-branch r224828 - OK
