https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63472
Bug ID: 63472
Summary: transaction_atomic within while loop causes ICE
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: spear at cse dot lehigh.edu
Summary:
The following code produces an ICE when compiled with "g++ -fgnu-tm bug.cc -c"
int val;
void test() {
while (true) {
__transaction_atomic {
if (val == 42)
return;
}
}
}
Error Message:
bug.cc: In function ‘void test()’:
bug.cc:12:1: internal compiler error: in duplicate_block, at cfghooks.c:1032
}
^
0x84c987 duplicate_block(basic_block_def*, edge_def*, basic_block_def*)
../../source_git/gcc/cfghooks.c:1032
0x84cca5 copy_bbs(basic_block_def**, unsigned int, basic_block_def**,
edge_def**, unsigned int, edge_def**, loop*, basic_block_def*, bool)
../../source_git/gcc/cfghooks.c:1312
0xbd6139 ipa_uninstrument_transaction
../../source_git/gcc/trans-mem.c:4093
0xbd6139 ipa_tm_scan_calls_transaction
../../source_git/gcc/trans-mem.c:4167
0xbd6139 ipa_tm_execute
../../source_git/gcc/trans-mem.c:5340
0xbd6139 execute
../../source_git/gcc/trans-mem.c:5578
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.
GCC Information:
gcc (GCC) 5.0.0 20141007 (experimental)
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215970
138bc75d-0d04-0410-961f-82ee72b054a4
