------- Comment #2 from rguenth at gcc dot gnu dot org 2010-04-19 09:36 -------
I can confirm that the output of MTest-7.c differs with -O2 -fno-inline -m32
vs.
-O2 -fno-inline -m32 -fno-tree-pre. The latter is equivalent to the -O0 -m32
output.
As inlining seems to be not relevant to trigger this bug can you help
a bit and isolate the miscompiled function? (just split out each funtion
to a separate file and see which you need to compile with -fno-tree-pre
to get the bug vanishing). Thx.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|c |tree-optimization
Ever Confirmed|0 |1
Keywords| |wrong-code
Known to work| |4.4.3
Last reconfirmed|0000-00-00 00:00:00 |2010-04-19 09:36:01
date| |
Summary|miscompile semantically |[4.5/4.6 Regression]
|equivalent C source files |miscompile semantically
|using -O2 |equivalent C source files
| |using -O2
Target Milestone|--- |4.5.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43794
