-O2 -ftree-vectorize -fplugin-arg-dragonegg-enable-gcc-optzns fails to compile utils.c

[llvmbot]

Bugzilla Link	9727
Resolution	FIXED
Resolved on	May 09, 2011 06:20
Version	trunk
OS	MacOS X
Attachments	[preprocessed source file for srchttps://user-images.githubusercontent.com/60944935/143743048-51a16c17-bbbb-414d-8295-e1869f6ee588.gz)
Reporter	LLVM Bugzilla Contributor

Extended Description

The src/utils.c source file from Athena 4.0 fails to compile with -O2 -ftree-vectorize -fplugin-arg-dragonegg-enable-gcc-optzns under dragonegg trunk svn at r129512 under x86_64-apple-darwin10. The failure appears as...

[MacPro:~/Downloads/athena4.0/src] howarth% de-gcc45 -O2 -ftree-vectorize -fplugin-arg-dragonegg-enable-gcc-optzns --save-temps -c utils.c
vect_perm_even.146_131 = VEC_EXTRACTEVEN_EXPR <vect_var_.144_128, vect_var_.145_130>;

Unhandled GIMPLE assignment!
UNREACHABLE executed at /sw/src/fink.build/dragonegg-gcc45-2.9-1/include/dragonegg/Internals.h:116!
*** WARNING *** there are active plugins, do not report this as a bug unless you can reproduce it without enabling any plugins.
Event | Plugins
PLUGIN_FINISH_UNIT | dragonegg
PLUGIN_FINISH | dragonegg
PLUGIN_START_UNIT | dragonegg
utils.c: In function ‘ath_bswap’:
utils.c:72:6: internal compiler error: Illegal instruction
Please submit a full bug report,
with preprocessed source if appropriate.
See http://gcc.gnu.org/bugs.html for instructions.

and is eliminated without -ftree-vectorize.

[llvmbot]

Fixed here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20110509/120554.html