f7dff7699f
This patch addresses the problem reported in PR92429. When creating an epilogue for vectorization we have to replace the SSA_NAMEs in the PATTERN_DEF_SEQs and RELATED_STMTs of the epilogue's loop_vec_infos. When doing this we were using simplify_replace_tree which always folds the replacement. This may lead to a different tree-node than the one which was analyzed in vect_loop_analyze. In turn the new tree-node may require a different vectorization than the one we had prepared for which caused the ICE in question. gcc/ChangeLog: 2020-01-16 Andre Vieira <andre.simoesdiasvieira@arm.com> PR tree-optimization/92429 * tree-ssa-loop-niter.h (simplify_replace_tree): Add parameter. * tree-ssa-loop-niter.c (simplify_replace_tree): Add parameter to control folding. * tree-vect-loop.c (update_epilogue_vinfo): Do not fold when replacing tree. gcc/testsuite/ChangeLog: 2020-01-16 Andre Vieira <andre.simoesdiasvieira@arm.com> PR tree-optimization/92429 * gcc.dg/vect/pr92429.c: New test. |
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| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
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| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
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| zlib | ||
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| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
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| configure | ||
| configure.ac | ||
| COPYING | ||
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| depcomp | ||
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