dd3d6a42fc
We use a negative ID number to link together the doloop_begin and doloop_end instructions. This negative ID number is setup within doloop_begin, at this point the ID is stored into the loop end instruction (doloop_end_i) and placed into the doloop_begin_i instruction. In arc.c (arc_reorg) we extract the ID from the doloop_end_i instruction in order to find the matching doloop_begin_i instruction, though the ID is only used in some cases. Currently in arc_reorg when we extract the ID we negate it. This negation is invalid. The ID stored in both doloop_end_i and doloop_begin_i is already negative, the negation in arc_reorg means that if we need to use the ID to find the doloop_begin_i then we will never find it (as the IDs will never match). This commit removes the unneeded negation, moves the extraction of the ID into a more appropriately scoped block and adds a new test for this issue. gcc/ChangeLog: * config/arc/arc.c (arc_reorg): Move loop_end_id into a more local block, and do not negate it, the stored id is already negative. gcc/testsuite/ChangeLog: * gcc.target/arc/loop-1.c: New file. Co-Authored-By: Guy Benyei <guybe@mellanox.com> From-SVN: r246933 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
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| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
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