[Bug rtl-optimization/30987] [4.3 Regression] Problem while compiling gcc for score
--- Comment #1 from pinskia at gcc dot gnu dot org 2007-02-27 22:24 --- Can you do two things for me, first supply what is the date on 4.3.0 you are trying to compile? Second, can you attach the preprocessed source found by recompiling the source which is failing with -save-temps? -- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||pinskia at gcc dot gnu dot ||org, ian at gcc dot gnu dot ||org Component|target |rtl-optimization Summary|Problem while compiling gcc |[4.3 Regression] Problem |for score |while compiling gcc for ||score Target Milestone|--- |4.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30987
[Bug rtl-optimization/30987] [4.3 Regression] Problem while compiling gcc for score
--- Comment #2 from ian at airs dot com 2007-02-28 02:24 --- The problem is that the bitset_c insn comes before the iorsi3 insn in the MD files. It matches the ior:SI insn with one added clobber. Unfortunately, the added clobber is of a hard reg, and so this is rejected by insn_invalid_p in recog.c. I don't understand how bitset_c will ever be used in practice. Nothing generates it explicitly. Typical ior:SI insns get passed to recog_memoized which does not add clobbers. I can fix the problem easily enough by moving (include misc.md) and (include mac.md) to the end of score.md. I'm not sure how to really test that fix. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30987
