------- Comment #2 from rob1weld at aol dot com 2007-06-15 16:53 -------
When I used Acovea-5.1.1 it found that "-fipa-pta" always causes an ICE with
"-O" > zero.
Here is the complete documentation for the feature:
# grep -B1 -A2 ipa-pta /usr/test/info/gcc.info
`-fipa-pta'
Perform interprocedural pointer analysis.
Here is an example that also fails (not what I was testing):
# cat test_1.c
main() {
printf("Hello\n");
}
# /usr/test/bin/gcc -O0 -fipa-pta -o delete_this test_1.c
test_1.c: In function 'main':
test_1.c:2: warning: incompatible implicit declaration of built-in function
'printf'
#
# /usr/test/bin/gcc -O1 -fipa-pta -o delete_this test_1.c
test_1.c: In function 'main':
test_1.c:2: warning: incompatible implicit declaration of built-in function
'printf'
test_1.c:3: error: stmt (0xb7cd0084) marked modified after optimization pass:
__builtin_puts (&"Hello"[0]);
test_1.c:3: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
#
# /usr/test/bin/gcc -O2 -fipa-pta -o delete_this test_1.c
test_1.c: In function 'main':
test_1.c:2: warning: incompatible implicit declaration of built-in function
'printf'
test_1.c:3: error: stmt (0xb7ca6084) marked modified after optimization pass:
__builtin_puts (&"Hello"[0]);
test_1.c:3: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
#
etc.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32358
