http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60004
Bug ID: 60004
Summary: Conditional return within transaction causes ICE
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libitm
Assignee: unassigned at gcc dot gnu.org
Reporter: spear at cse dot lehigh.edu
The following code produces an ICE:
int a;
int f() {
__transaction_atomic {
if (a == 5)
return 1;
}
}
compilation:
gcc -std=c++11 -fgnu-tm test_if.cc -c
error:
test_if.cc: In function ‘int f()’:
test_if.cc:4:5: internal compiler error: in lower_eh_constructs_2, at
tree-eh.c:2105
int f()
^
0xb96c26 lower_eh_constructs_2
../../../src/gcc-libitm/gcc/tree-eh.c:2105
0xb96c26 lower_eh_constructs_1
../../../src/gcc-libitm/gcc/tree-eh.c:2123
0xb979a4 lower_try_finally_switch
../../../src/gcc-libitm/gcc/tree-eh.c:1392
0xb979a4 lower_try_finally
../../../src/gcc-libitm/gcc/tree-eh.c:1722
0xb979a4 lower_eh_constructs_2
../../../src/gcc-libitm/gcc/tree-eh.c:2065
0xb979a4 lower_eh_constructs_1
../../../src/gcc-libitm/gcc/tree-eh.c:2123
0xb98e91 lower_eh_constructs
../../../src/gcc-libitm/gcc/tree-eh.c:2141
0xb98e91 execute
../../../src/gcc-libitm/gcc/tree-eh.c:2193
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Environment:
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/spear/gcc/install/gcc/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../../src/gcc-libitm/configure
--prefix=/home/spear/gcc/install/gcc --with-gmp=/home/spear/gcc/install/gmp/
--with-mpfr=/home/spear/gcc/install/mpfr/
--with-mpc=/home/spear/gcc/install/mpc/ --enable-languages=c,c++,lto
--enable-multilib --enable-lto
Thread model: posix
gcc version 4.9.0 20140129 (experimental) (GCC)
