[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 Aldy Hernandez changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #13 from Aldy Hernandez --- Fixed in trunk by: https://gcc.gnu.org/pipermail/gcc-patches/2021-June/571597.html
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #12 from ro at CeBiTec dot Uni-Bielefeld.DE --- > --- Comment #11 from Aldy Hernandez --- > Note, this is still broken so I am leaving the PR open. I will address this > next week. FWIW, I can bootstrap both i386-pc-solaris2.11 and sparc-sun-solaris2.11 again with you temporary patch. Thanks.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #11 from Aldy Hernandez --- Note, this is still broken so I am leaving the PR open. I will address this next week.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #10 from CVS Commits --- The master branch has been updated by Aldy Hernandez : https://gcc.gnu.org/g:2364b584552208ce715fa4fd44c510b7e5210d1e commit r12-1118-g2364b584552208ce715fa4fd44c510b7e5210d1e Author: Aldy Hernandez Date: Fri May 28 22:17:51 2021 +0200 Fix i686 bootstrap by temporarily disabling exporting of global ranges. The patch converting evrp to the get_range_query(fun) API broke i686 bootstrap (commit 57bf37515). The problem seems to be in a subsequent pass that has more up-to-date global ranges. I won't be able to look at this until next week, so I am reverting the problematic bit of the patch-- the exporting of global ranges once evrp finishes. The use of the new API remains. Reverting the behavior shouldn't be a problem as we never used to export global ranges from ranger. This was new behavior in the patchset. Tested on x86-64 Linux with a bootstrap and regtest, and on x86-32 with only a bootstrap and the configure flags from the PR: --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++ --enable-cet i686-linux --enable-bootstrap --with-fpmath=sse --disable-libcc1 --disable-libcilkrts --disable-libsanitizer gcc/ChangeLog: PR tree-optimization/100787 * gimple-ssa-evrp.c: Disable exporting of global ranges. gcc/testsuite/ChangeLog: * gcc.dg/Wstringop-overflow-55.c: * gcc.dg/pr80776-1.c:
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #9 from Aldy Hernandez --- This temporary fix resolves the bootstrap comparison on i686. Does it also fix it on sparc-32? diff --git a/gcc/gimple-ssa-evrp.c b/gcc/gimple-ssa-evrp.c index 118d10365a0..b40649b6a10 100644 --- a/gcc/gimple-ssa-evrp.c +++ b/gcc/gimple-ssa-evrp.c @@ -127,7 +127,7 @@ public: if (dump_file && (dump_flags & TDF_DETAILS)) m_ranger->dump (dump_file); -m_ranger->export_global_ranges (); +//m_ranger->export_global_ranges (); disable_ranger (cfun); } @@ -193,7 +193,7 @@ public: if (dump_file && (dump_flags & TDF_DETAILS)) m_ranger->dump (dump_file); -m_ranger->export_global_ranges (); +//m_ranger->export_global_ranges (); disable_ranger (cfun); }
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #7 from Jakub Jelinek --- Perhaps if EVRP is folding debug stmts it could first fold non-debug stmts (and remember if there were any debug stmts) and only fold debug stmts afterwards, either just by using caches and not adding anything to them (if they survive to later passes), or just to make sure that the debug stmts don't affect non-debug folding. --- Comment #8 from Aldy Hernandez --- I'll work on it this weekend. If there's no patch by Monday morning, we can revert the patch while I find a solution. On Fri, May 28, 2021, 19:49 ro at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 > > Rainer Orth changed: > >What|Removed |Added > > > Target|i686|i686, sparc > CC||ro at gcc dot gnu.org > > --- Comment #6 from Rainer Orth --- > It also affects 32-bit sparc (sparc-sun-solaris2.11), maybe other 32-bit > targets, too? Unless a quick fix is coming forward, I suspect it would be > better > to revert the patch instead of keeping bootstrap broken for days. > > -- > You are receiving this mail because: > You are the assignee for the bug. > You are on the CC list for the bug. > >
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #7 from Jakub Jelinek --- Perhaps if EVRP is folding debug stmts it could first fold non-debug stmts (and remember if there were any debug stmts) and only fold debug stmts afterwards, either just by using caches and not adding anything to them (if they survive to later passes), or just to make sure that the debug stmts don't affect non-debug folding.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 Rainer Orth changed: What|Removed |Added Target|i686|i686, sparc CC||ro at gcc dot gnu.org --- Comment #6 from Rainer Orth --- It also affects 32-bit sparc (sparc-sun-solaris2.11), maybe other 32-bit targets, too? Unless a quick fix is coming forward, I suspect it would be better to revert the patch instead of keeping bootstrap broken for days.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 Richard Biener changed: What|Removed |Added Priority|P3 |P1
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 --- Comment #5 from H.J. Lu --- I have [hjl@gnu-skx-1 gcc-32bit]$ ls /usr/local32/bin addr2line as dwp gprof ld.bfd nm objdump readelf strings ar c++filt elfedit ld ld.gold objcopy ranlib size strip [hjl@gnu-skx-1 gcc-32bit]$ and PATH:=/usr/local32/bin:$(PATH) in Makefile. I can bootstrap i686-linux gcc with $ CC="cc -m32 -fno-lto" CXX="g++ -m32 -fno-lto" RUNTESTFLAGS="--target_board='unix'" /export/gnu/import/git/sources/gcc/configure --enable-cet --with-demangler-in-ld i686-linux --prefix=/usr/gcc-11.0.0-32bit --with-local-prefix=/usr/local --enable-gnu-indirect-function --enable-clocale=gnu --with-system-zlib --with-target-system-zlib --with-fpmath=sse on Linux/x86-64.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787
Aldy Hernandez changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed||2021-05-27
Ever confirmed|0 |1
--- Comment #4 from Aldy Hernandez ---
(In reply to Jakub Jelinek from comment #3)
> I'm using
> mkdir ~/hbin
> cat > ~/hbin/as <<\END
> #!/bin/sh
> exec /usr/bin/as --32 "$@"
> END
> cat > ~/hbin/g++ <<\END
> #!/bin/sh
> exec /usr/bin/g++ -m32 "$@"
> END
> cat > ~/hbin/gcc <<\END
> #!/bin/sh
> exec /usr/bin/gcc -m32 "$@"
> END
> cat > ~/hbin/ld <<\END
> #!/bin/sh
> case "$*" in
> --version) cat <<\EOF
> GNU ld version 2.20.52.0.1-10.fc17 20100131
> Copyright 2012 Free Software Foundation, Inc.
> This program is free software; you may redistribute it under the terms of
> the GNU General Public License version 3 or (at your option) a later version.
> This program has absolutely no warranty.
> EOF
> exit 0;;
> esac
> exec /usr/bin/ld -m elf_i386 -L /usr/lib/ "$@"
> END
> chmod 755 ~/hbin/{as,g++,gcc,ld}
>
> and then use
> PATH=~/hbin:$PATH i386 .../configure ...
> PATH=~/hbin:$PATH i386 make ...
> etc.
That is DIS-GUST-ING!
...and also works, thanks :).
Confirmed.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek ---
I'm using
mkdir ~/hbin
cat > ~/hbin/as <<\END
#!/bin/sh
exec /usr/bin/as --32 "$@"
END
cat > ~/hbin/g++ <<\END
#!/bin/sh
exec /usr/bin/g++ -m32 "$@"
END
cat > ~/hbin/gcc <<\END
#!/bin/sh
exec /usr/bin/gcc -m32 "$@"
END
cat > ~/hbin/ld <<\END
#!/bin/sh
case "$*" in
--version) cat <<\EOF
GNU ld version 2.20.52.0.1-10.fc17 20100131
Copyright 2012 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.
EOF
exit 0;;
esac
exec /usr/bin/ld -m elf_i386 -L /usr/lib/ "$@"
END
chmod 755 ~/hbin/{as,g++,gcc,ld}
and then use
PATH=~/hbin:$PATH i386 .../configure ...
PATH=~/hbin:$PATH i386 make ...
etc.
[Bug tree-optimization/100787] [12 Regression] Bootstrap failure caused by r12-1077
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100787 Aldy Hernandez changed: What|Removed |Added CC||aldyh at gcc dot gnu.org --- Comment #2 from Aldy Hernandez --- I'm doing the following on an x86-64 Linux box, as I don't have access to an i686 system: ~/src/clean/configure --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++ --enable-cet i686-linux --enable-bootstrap --with-fpmath=sse --disable-libcc1 --disable-libcilkrts --disable-libsanitizer make -jN /usr/bin/ld: /home/aldyh/bld/t/./gcc/liblto_plugin.so: error loading plugin: /home/aldyh/bld/t/./gcc/liblto_plugin.so: wrong ELF class: ELFCLASS32 collect2: error: ld returned 1 exit status make[3]: *** [Makefile:995: libgcc_s.so] Error 1 make[3]: Leaving directory '/opt/notnfs/aldyh/bld/t/i686-linux/libgcc' make[2]: *** [Makefile:19008: all-stage2-target-libgcc] Error 2 make[2]: Leaving directory '/opt/notnfs/aldyh/bld/t' make[1]: *** [Makefile:23280: stage2-bubble] Error 2 Is there a way to reproduce this on an x86-64 system?
