http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57864
Bug ID: 57864
Summary: [4.7 Regression] ICE in bitmap_set_replace_value, at
tree-ssa-pre.c:862
Product: gcc
Version: 4.7.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: j-1fabfe3bb3efc0eaf9750936b80a1c20 at sharpwave dot de
Created attachment 30482
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30482&action=edit
Reduced testcase, crashes 4.7.3 when compiled with -O3 -m64
The attached reduced testcase produces an ICE on 4.7.3 when compiled with -O3.
-O2 is fine, as is 4.7.2 and 4.8.0. Compilation with -m32 likewise passes.
$ /opt/gccs/4.7.3/bin/g++--4.7.3 -c -O3 -m64 testcase.cpp
testcase.cpp: In function ‘void _ZL3fn1P1Xib.constprop.0(X*, bool)’:
testcase.cpp:18:1: internal compiler error: in bitmap_set_replace_value, at
tree-ssa-pre.c:862
This seems to be related to bug 55888 and bug 55107.
Full details:
$ /opt/gccs/4.7.3/bin/g++--4.7.3 -v -c -O3 -m64 testcase.cpp
Using built-in specs.
COLLECT_GCC=/opt/gccs/4.7.3/bin/g++--4.7.3
Target: x86_64-unknown-linux-gnu
Configured with: ../src/gcc-4.7.3/configure --prefix=/opt/gccs/4.7.3
--program-suffix=--4.7.3 --enable-languages=c,c++ --disable-bootstrap
Thread model: posix
gcc version 4.7.3 (GCC)
COLLECT_GCC_OPTIONS='-v' '-c' '-O3' '-m64' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/opt/gccs/4.7.3/libexec/gcc/x86_64-unknown-linux-gnu/4.7.3/cc1plus -quiet -v
-D_GNU_SOURCE testcase.cpp -quiet -dumpbase testcase.cpp -m64 -mtune=generic
-march=x86-64 -auxbase testcase -O3 -version -o /tmp/ccm58ig9.s
GNU C++ (GCC) version 4.7.3 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.4.5, GMP version 4.3.2, MPFR version
3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory
"/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/../../../../include/c++/4.7.3
/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/../../../../include/c++/4.7.3/x86_64-unknown-linux-gnu
/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/../../../../include/c++/4.7.3/backward
/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/include
/opt/gccs/4.7.3/include
/opt/gccs/4.7.3/lib/gcc/x86_64-unknown-linux-gnu/4.7.3/include-fixed
/usr/include
End of search list.
GNU C++ (GCC) version 4.7.3 (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.4.5, GMP version 4.3.2, MPFR version
3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 4073671a6c09c56d7812f3b7ae137fde
testcase.cpp: In function ‘void _ZL3fn1P1Xib.constprop.0(X*, bool)’:
testcase.cpp:18:1: internal compiler error: in bitmap_set_replace_value, at
tree-ssa-pre.c:862
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
