http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48186
Summary: ICE: SIGFPE (division by zero) in
maybe_hot_frequency_p at predict.c:129 with --param
hot-bb-frequency-fraction=0 on basic code
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
----- testcase.c -----
void foo (void) { }
----------------------
Compiler output:
$ gcc -O --param hot-bb-frequency-fraction=0 testcase.c
testcase.c: In function 'foo':
testcase.c:1:6: internal compiler error: Floating point exception
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Program received signal SIGFPE, Arithmetic exception.
0x0000000000806f9c in maybe_hot_frequency_p (bb=Unhandled dwarf expression
opcode 0xf3
) at /mnt/svn/gcc-trunk/gcc/predict.c:129
129 if (freq < ENTRY_BLOCK_PTR->frequency / PARAM_VALUE
(HOT_BB_FREQUENCY_FRACTION))
