This patch is for the google/gcc-4_7 and google/gcc-4_8 branches.
It fixes a problem with -fdebug-types-section and with
-gsplit-dwarf where the hash computation for the type signature
and for the DW_AT_dwo_id attribute may produce results that differ
from run to run. For dw_val_class_vec values (e.g., the const value
of a small struct), both hash computations use the value of a pointer
instead of the actual data.
Backported from trunk.
Google ref b/10289060
-cary
2013-08-13 Cary Coutant <ccout...@google.com>
gcc/
* dwarf2out.c (CHECKSUM_BLOCK): New macro.
(attr_checksum): Hash vector contents instead of pointer.
(attr_checksum_ordered): Likewise.
