re PR c++/77803 (Bogus implicit-fallthrough warning)
PR c++/77803 * gimplify.c (last_stmt_in_scope): Add check for FALLTHROUGH (). * g++.dg/warn/Wimplicit-fallthrough-1.C: New test. From-SVN: r240861
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2016-10-07 Marek Polacek <polacek@redhat.com>
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PR c++/77803
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* gimplify.c (last_stmt_in_scope): Add check for FALLTHROUGH ().
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2016-10-07 Richard Biener <rguenther@suse.de>
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* bitmap.h: Document constraints on bitmap modification while
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@ -1687,6 +1687,8 @@ last_stmt_in_scope (gimple *stmt)
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stmt = gimple_seq_last_stmt (gimple_try_eval (try_stmt));
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gimple *last_eval = last_stmt_in_scope (stmt);
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if (gimple_stmt_may_fallthru (last_eval)
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&& (last_eval == NULL
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|| !gimple_call_internal_p (last_eval, IFN_FALLTHROUGH))
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&& gimple_try_kind (try_stmt) == GIMPLE_TRY_FINALLY)
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{
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stmt = gimple_seq_last_stmt (gimple_try_cleanup (try_stmt));
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@ -1,3 +1,8 @@
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2016-10-07 Marek Polacek <polacek@redhat.com>
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PR c++/77803
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* g++.dg/warn/Wimplicit-fallthrough-1.C: New test.
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2016-10-07 Jakub Jelinek <jakub@redhat.com>
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PR tree-optimization/77664
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@ -0,0 +1,33 @@
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// PR c++/77803
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// { dg-do compile { target c++11 } }
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// { dg-options "-Wimplicit-fallthrough" }
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struct A {};
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int a;
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void
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fn1 ()
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{
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switch (0) {
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case 0:
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{
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A b;
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[[fallthrough]];
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}
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default:
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a = 0;
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}
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}
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void
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fn2 ()
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{
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switch (0) {
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case 0:
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{
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A b; // { dg-warning "statement may fall through" }
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}
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default:
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a = 0;
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}
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}
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