GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
gcc (GCC) 4.1.0 (SUSE Linux)
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Summary: Unending loops
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
--- Comment #1 from darkjames at darkjames dot ath dot cx 2006-10-25 16:12
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Created an attachment (id=12490)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12490&action=view)
First testcase
First testcase loops unending with -O2, not loops with -O2 -fno-strict-a
--- Comment #2 from darkjames at darkjames dot ath dot cx 2006-10-25 16:13
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Created an attachment (id=12491)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12491&action=view)
Second testcase
test1.c + added printf() to loop, not loops with -O2
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http://gcc.
--- Comment #3 from darkjames at darkjames dot ath dot cx 2006-10-25 16:20
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By the way, it's possible to fix the code in other way than using unions?
It just need to work both for wchar_t strings and normal strings...
If you have some ideas how, it'll be nice if you gi
--- Comment #5 from darkjames at darkjames dot ath dot cx 2006-10-25 17:11
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Yeah, I know, but why gcc generate good code if we add that printf to test1.c
(test2.c) ? It's still wchar * -> char * still aliasing violation.
or if we replace:
__SN(&str, 1); with
s
--- Comment #7 from darkjames at darkjames dot ath dot cx 2006-10-25 17:24
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Ok, one more question, is it possible to gcc print some warnings about code
like that? Cause even with -Wall it doesn't ;(
gcc4 is quite more verbose than gcc3 so I think
It'll be better to pri
