On Sun, Nov 24, 2013 at 12:26 PM, H.J. Lu <hjl.to...@gmail.com> wrote: > On Wed, Nov 20, 2013 at 12:59 PM, Steven Bosscher <stevenb....@gmail.com> > wrote: >> Hello, >> >> With the attached patch, dead jump tables are deleted if a >> CLEANUP_EXPENSIVE is performed in cfglayout mode. This helps remove >> labels and merge basic blocks, and brings the CFG out of cfglayout >> mode more cleanly. It also fixes bugs in LABEL_NUSES updating, which >> was broken for cfglayout, and which was done in the wrong place for >> IRA. >> >> Bootstrapped&tested on powerpc64-unknown-linux-gnu. The patch needs >> patching for the EXIT_BLOCK_PTR/ENTRY_BLOCK_PTR changes but what's >> attached is what I tested. If the patch is OK, I'll make the necessary >> changes and re-test before committing. >> >> OK for trunk? > > It breaks bootstrap on x86 with java enabled: > > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java: > In class 'gnu.xml.aelfred2.XmlParser': > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java: > In method 'gnu.xml.aelfred2.XmlParser.parseXMLDecl(boolean)': > In file included from > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java:5804:0, > from > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/SAXDriver.java:1509, > from > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java:5793, > from > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/SAXDriver.java:1605, > from > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java:5813, > from <built-in>:14: > /export/gnu/import/git/gcc-test-intel64/src-trunk/libjava/classpath/gnu/xml/aelfred2/XmlParser.java:844:0: > internal compiler error: in remove_insn, at emit-rtl.c:3981 > return encodingName; > ^ > 0x66b1f3 remove_insn(rtx_def*) > ../../src-trunk/gcc/emit-rtl.c:3981 > 0x5cf31b delete_insn(rtx_def*) > ../../src-trunk/gcc/cfgrtl.c:170 > 0xd5d7ae delete_dead_jump_tables_between > ../../src-trunk/gcc/cfgcleanup.c:2971 > 0xd60511 delete_dead_jumptables() > ../../src-trunk/gcc/cfgcleanup.c:2997 > 0xd617a2 cleanup_cfg(int) > ../../src-trunk/gcc/cfgcleanup.c:3084 > 0xdbd15a rest_of_handle_if_conversion > ../../src-trunk/gcc/ifcvt.c:4482 > 0xdbd15a execute > ../../src-trunk/gcc/ifcvt.c:4516 > Please submit a full bug report, > with preprocessed source if appropriate. > Please include the complete backtrace with any bug report. > See <http://gcc.gnu.org/bugs.html> for instructions. > make[8]: *** [gnu-xml-aelfred2.lo] Error 1 >
I opened: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59279 -- H.J.
