https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105738
Bug ID: 105738
Summary: asan error during bootstrap
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
I just got the following error during a bootstrap with asan enabled:
echo NO_PIE_CFLAGS = "$NO_PIE_CFLAGS" >> tmp-libgcc.mvars
mv tmp-libgcc.mvars libgcc.mvars
/bin/sh ../../trunk.git/gcc/../move-if-change tmp-fixinc_list fixinc_list
echo timestamp > s-fixinc_list
=================================================================
==46366==ERROR: AddressSanitizer: unknown-crash on address 0x7fe50bb02c10 at pc
0x000002bb655b bp 0x7ffe2f90ce00 sp 0x7ffe2f90cdf8
READ of size 8 at 0x7fe50bb02c10 thread T0
#0 0x2bb655a in NEXT_INSN(rtx_insn const*) ../../trunk.git/gcc/rtl.h:1477
#1 0x2bb655a in expensive_function_p(int)
../../trunk.git/gcc/predict.cc:3702
#2 0x3f57001 in ix86_compute_frame_layout
../../trunk.git/gcc/config/i386/i386.cc:6644
#3 0x285d1c6 in update_reg_eliminate
../../trunk.git/gcc/lra-eliminations.cc:1132
This seems to happen late in stage 3:
$ egrep "^Config|^==" mk.out
...
Configuring stage 3 in ./gcc
=================================================================
==46366==ERROR: AddressSanitizer: unknown-crash on address 0x7fe50bb02c10 at pc
0x000002bb655b bp 0x7ffe2f90ce00 sp 0x7ffe2f90cdf8
==46366==ABORTING
Configure line is
CC="clang -Wall" CXX="clang++ -Wall" \
../trunk.git/configure --prefix=/home/dcb/gcc/$PREFIX \
--with-build-config=bootstrap-ubsan \
--with-build-config=bootstrap-asan \
--disable-multilib \
--disable-werror \
--enable-checking=df,extra,fold,rtl,yes \
--enable-languages=c,c++,fortran
sed 's/-O2/-O3 -march=bdver2/' < Makefile > Makefile.tmp
mv Makefile.tmp Makefile
