[Bug c/37921] __builtin_constant_p seems to be giving false positives

[arjan at linux dot intel dot com]

------- Comment #1 from arjan at linux dot intel dot com  2008-10-26 18:17 -------
Created an attachment (id=16553)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16553&action=view)
test case for bug 37921

gcc -c -Wall -Os -fno-strict-aliasing -o fadt.o fadt.c

leads to:

fadt.c: In function ‘acpi_tb_create_local_fadt’:
fadt.c:132: warning: array subscript is above array bounds


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37921