7d906d07ed
Some users of is_parallel_of_n_reg_sets disregard the clobbers in a parallel after it has returned "yes, this is a parallel of N sets and maybe some clobbers". But combine uses a clobber of const0_rtx to indicate substitution failure, so this leads to disaster. Fix this by checking for such special clobbers in is_parallel_of_n_reg_sets. PR rtl-optimization/68381 * combine.c (is_parallel_of_n_reg_sets): Return false if the pattern is poisoned. From-SVN: r230786 |
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| boehm-gc | ||
| config | ||
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