Hello!
It looks that it is too hard for the compiler to track deref_align
initialization through dependent deref_base boolean. The patch bellow
fixes "may be used uninitialized" warning that breaks
profiledbootstrap.
2013-09-07 Uros Bizjak <ubiz...@gmail.com>
* ipa-prop.c (ipa_modify_call_arguments): Initialize deref_align.
Tested on x86_64-pc-linux-gnu with LTO profiledbootstrap.
OK for mainline?
Uros.
Index: ipa-prop.c
===================================================================
--- ipa-prop.c (revision 202352)
+++ ipa-prop.c (working copy)
@@ -3526,7 +3526,7 @@ ipa_modify_call_arguments (struct cgraph_edge *cs,
{
tree expr, base, off;
location_t loc;
- unsigned int deref_align;
+ unsigned int deref_align = 0;
bool deref_base = false;
/* We create a new parameter out of the value of the old one, we can
