https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83438
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
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CC| |law at redhat dot com
--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
There was a correctness fix that went in about a week later:
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue Dec 12 22:46:46 2017 +0000
PR tree-optimization/83298
PR tree-optimization/83362
PR tree-optimization/83383
* gimple-ssa-evrp-analyze.h (class evrp_range_analyzer): Make
push_value_range a public interface. Add new argument to
record_ranges_from_stmt.
* gimple-ssa-evrp-analyze.c
(evrp_range_analyzer::record_ranges_from_stmt): Add new argument.
Update comments. Handle recording temporary equivalences.
* tree-ssa-dom.c (dom_opt_opt_walker::before_dom_children): Add
new argument to call to
evrp_range_analyzer::record_ranges_from_stmt.
* gimple-ssa-evrp.c (evrp_dom_walker::before_dom_children):
Likewise.
* tree-ssa-threadedge.c: Include alloc-pool.h, vr-values.h and
gimple-ssa-evrp-analyze.h.
(record_temporary_equivalences_from_phis): Add new argument. When
the PHI arg is an SSA_NAME, set the result's range to the range
of the PHI arg.
(record_temporary_equivalences_from_stmts_at_dest): Record ranges
from statements too.
(thread_through_normal_block): Accept new argument,
evrp_range_analyzer.
Pass it down to children as needed.
(thread_outgoing_edges): Likewise.
(thread_across_edge): Likewise. Push/pop range state as needed.
* tree-ssa-threadedge.h (thread_outgoing_edges): Update prototype.
PR tree-optimization/83298
PR tree-optimization/83362
PR tree-optimization/83383
* gcc.c-torture/execute/pr83298.c: New test.
* gcc.c-torture/execute/pr83362.c New test.
* gcc.c-torture/execute/pr83383.c New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@255593
138bc75d-0d04-0410-961f-82ee72b054a4
