http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51764
Bug #: 51764
Summary: mudflap does not work with LTO
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: rgue...@gcc.gnu.org
lto1 is not linked with tree-mudflap.o but with tree-nomudflap.o which causes
us to ICE when you combine -flto and -fmudflap.
Even if you fix that we ICE because the 2nd stage of mudflap depends on
state set up by the 1st stage which runs in different contexts (link-time
vs. compile-time). So to work with LTO this state would need to be streamed
and combined.
Instead of ICEing we should sorry () for the -flto -fmudflap combination
already at compile-time and reject -fmudflap at link-time (why is that
a common.opt flag anyway when it only applies to a subset of all languages?)
