2090d6a0a8
2006-02-07 Jeff Law <law@redhat.com> * tree-vrp.c (find_conditional_asserts): Update comments. (simplify_stmt_for_jump_threading): New. (identify_jump_threads, finalize_jump_threads): New. (vrp_finalize): Call identify_jump_threads. (execute_vrp): Call finalize_jump_threads. * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field. (vrp_element, vrp_data, vrp_element_p): Remove. (vrp_hash_elt, vrp_variables_stack): Remove. (vrp_hash, vrp_eq, record_range): Remove. (simplify_cond_and_lookup_avail_expr): Remove. (extract_range_from_cond): Remove. (thread_across_edge): Relocated into tree-ssa-threadedge.c. (simplify_stmt_for_jump_threading): New. (dom_thread_across_edge): New wrapper. (tree_ssa_dominator_optimize): No longer initialize or finalize any of the VRP datastructures. Remove iteration step and simplify as a result of removal of iteration step. (pass_dominator): Perform a cfg cleanup after DOM. (dom_opt_finalize_block): Use the new common routines for threading jumps. Simplify stack management slightly. No longer need to unwind VRP state. (record_equivalences_from_incoming_edge): No longer record VRP information. (eliminate_redundant_computations): No longer call simplify_cond_and_lookup_avail_expr. * tree-flow.h (potentially_threadable_block): Prototype. (thread_across_edge): Likewise. * Makefile.in (OBJS-common): Add tree-ssa-threadedge.o (tree-ssa-threadedge.o): Add dependencies. * tree-ssa-threadedge.c: New file. * passes.c (init_optimization_passes): Merge PHIs before calling VRP. Run VRP again late in the SSA optimization pipeline. * gcc.dg/tree-ssa/vrp01.c: Update dumpfile names now that we have multiple VRP passes. * gcc.dg/tree-ssa/vrp09.c: Likewise. * gcc.dg/tree-ssa/vrp18.c: Likewise. * gcc.dg/tree-ssa/pr21582.c: Likewise. * gcc.dg/tree-ssa/pr20657.c: Likewise. * gcc.dg/tree-ssa/pr21001.c: Likewise. * gcc.dg/tree-ssa/vrp02.c: Likewise * gcc.dg/tree-ssa/vrp11.c: Likewise * gcc.dg/tree-ssa/pr14341.c: Likewise * gcc.dg/tree-ssa/vrp19.c: Likewise * gcc.dg/tree-ssa/vrp20.c: Likewise * gcc.dg/tree-ssa/vrp03.c: Likewise * gcc.dg/tree-ssa/pr21086.c: Likewise * gcc.dg/tree-ssa/pr21959.c: Likewise * gcc.dg/tree-ssa/vrp21.c: Likewise * gcc.dg/tree-ssa/vrp04.c: Likewise * gcc.dg/tree-ssa/pr25485.c: Likewise * gcc.dg/tree-ssa/pr22026.c: Likewise * gcc.dg/tree-ssa/vrp22.c: Likewise * gcc.dg/tree-ssa/vrp05.c: Likewise * gcc.dg/tree-ssa/20030807-10.c: Likewise * gcc.dg/tree-ssa/pr20701.c: Likewise * gcc.dg/tree-ssa/vrp23.c: Likewise * gcc.dg/tree-ssa/vrp06.c: Likewise * gcc.dg/tree-ssa/pr22117.c: Likewise * gcc.dg/tree-ssa/pr20702.c: Likewise * gcc.dg/tree-ssa/vrp15.c: Likewise * gcc.dg/tree-ssa/pr21090.c: Likewise * gcc.dg/tree-ssa/pr21294.c: Likewise * gcc.dg/tree-ssa/vrp24.c: Likewise * gcc.dg/tree-ssa/vrp07.c: Likewise * gcc.dg/tree-ssa/pr21563.c: Likewise * gcc.dg/tree-ssa/pr25382.c: Likewise * gcc.dg/tree-ssa/vrp16.c: Likewise * gcc.dg/tree-ssa/vrp25.c: Likewise * gcc.dg/tree-ssa/vrp08.c: Likewise * gcc.dg/tree-ssa/20030807-6.c: Likewise * gcc.dg/tree-ssa/vrp17.c: Likewise * gcc.dg/tree-ssa/pr21458.c: Likewise * g++.dg/tree-ssa/pr18178.C: Likewise From-SVN: r110705
16 lines
371 B
C
16 lines
371 B
C
/* { dg-do compile } */
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/* { dg-options "-O1 -ftree-vrp -fdump-tree-vrp1" } */
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extern void link_error ();
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void test02(unsigned int a, unsigned int b)
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{
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unsigned int x = 0x80000000;
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if (a > x)
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if (b < x)
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if (a == b)
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link_error ();
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}
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/* { dg-final { scan-tree-dump-times "link_error" 0 "vrp1" } } */
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/* { dg-final { cleanup-tree-dump "vrp1" } } */
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