18bfe94032
PR tree-optimization/79472 * tree-switch-conversion.c (struct switch_conv_info): Add contiguous_range and default_case_nonstandard fields. (collect_switch_conv_info): Compute contiguous_range and default_case_nonstandard fields, don't clear final_bb if contiguous_range and only the default case doesn't have the required structure. (check_all_empty_except_final): Set default_case_nonstandard instead of failing if contiguous_range and the default case doesn't have empty block. (check_final_bb): Add SWTCH argument, don't fail if contiguous_range and only the default case doesn't have the required constants. Skip virtual phis. (gather_default_values): Skip virtual phis. Allow non-NULL CASE_LOW if default_case_nonstandard. (build_constructors): Build constant 1 just once. Assert that default values aren't inserted in between cases if contiguous_range. Skip virtual phis. (build_arrays): Skip virtual phis. (prune_bbs): Add DEFAULT_BB argument, don't remove that bb. (fix_phi_nodes): Don't add e2f phi arg if default_case_nonstandard. Handle virtual phis. (gen_inbound_check): Handle default_case_nonstandard case. (process_switch): Adjust check_final_bb caller. Call gather_default_values with the first non-default case instead of default case if default_case_nonstandard. * gcc.dg/tree-ssa/vrp40.c: Add -fno-tree-switch-conversion to dg-options. * gcc.dg/tree-ssa/vrp113.c: New test. * gcc.dg/tree-ssa/cswtch-3.c: New test. * gcc.dg/tree-ssa/cswtch-4.c: New test. * gcc.dg/tree-ssa/cswtch-5.c: New test. From-SVN: r247538 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
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| libcilkrts | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
| libitm | ||
| libmpx | ||
| libobjc | ||
| liboffloadmic | ||
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| libssp | ||
| libstdc++-v3 | ||
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| maintainer-scripts | ||
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| .dir-locals.el | ||
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| compile | ||
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| configure | ||
| configure.ac | ||
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| COPYING3 | ||
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| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
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| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
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