I noticed that AUTO_INC_DEC is defined a bit oddly in gcc/rtl.h. More
specifically, the condition does not include HAVE_POST_MODIFY_DISP but it does
include HAVE_PRE_MODIFY_DISP twice. Most likely one of these
HAVE_PRE_MODIFY_DISP should be a HAVE_POST_MODIFY_DISP.
The following is the code snippet from gcc/rtl.h that I am talking about:
/* Indicate whether the machine has any sort of auto increment addressing.
If not, we can avoid checking for REG_INC notes. */
#if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) \
|| defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT) \
|| defined (HAVE_PRE_MODIFY_DISP) || defined (HAVE_PRE_MODIFY_DISP) \
|| defined (HAVE_PRE_MODIFY_REG) || defined (HAVE_POST_MODIFY_REG))
#define AUTO_INC_DEC
#endif
--
Summary: AUTO_INC_DEC not defined correctly in rtl.h
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: trivial
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ehliar at isy dot liu dot se
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40069
