http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51511
Bug #: 51511
Summary: [4.6/4.7 regression] gcc.dg/pr45819.c fails on
arm-linux-gnueabi due to PR50078+PR51466 fix
Classification: Unclassified
Product: gcc
Version: 4.6.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: regression
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: mi...@it.uu.se
The PR50078+PR51466 fix, r182157 on 4.6 branch, caused a test suite regression
on arm-linux-gnueabi:
+FAIL: gcc.dg/pr45819.c (test for excess errors)
because the compiler now emits the following warning:
pr45819.c: In function 'ehci_hub_control':
pr45819.c:16:10: warning: mis-aligned access used for structure member
[-fstrict-volatile-bitfields]
pr45819.c:16:10: note: when a volatile object spans multiple type-sized
locations, the compiler must choose between using a single mis-aligned access
to preserve the volatility, or using multiple aligned accesses to avoid runtime
faults; this code may fail at runtime if the hardware does not allow this
access
I believe the warning is correct, so perhaps the warning should just be
suppressed
in pr45819.c with -w. gcc-4.7-20111210 has the same issue.
