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authorJakub Jelinek <jakub@redhat.com>2019-11-21 11:59:27 +0100
committerJakub Jelinek <jakub@gcc.gnu.org>2019-11-21 11:59:27 +0100
commit01a0fba62602d008fe838aafa0ee5b1b35369e06 (patch)
tree753363427bb25a48beabf8bf11526e1020f99d4e /gcc
parent141793d5e91cac12a59ed3a4a8d432824ea753ee (diff)
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re PR tree-optimization/91355 (optimized code does not call destructor while unwinding after exception)
PR tree-optimization/91355 * tree-ssa-sink.c (select_best_block): Use >= rather than > for early_bb scaled count with best_bb count comparison. * g++.dg/torture/pr91355.C: New test. From-SVN: r278548
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/torture/pr91355.C28
-rw-r--r--gcc/tree-ssa-sink.c2
4 files changed, 38 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e705e4a..82cecf3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
2019-11-21 Jakub Jelinek <jakub@redhat.com>
+ PR tree-optimization/91355
+ * tree-ssa-sink.c (select_best_block): Use >= rather than >
+ for early_bb scaled count with best_bb count comparison.
+
* ipa-fnsummary.h (enum ipa_hints_vals): Fix comment typo,
preffer -> prefer.
* ipa-inline.c (edge_badness): Likewise.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5b0217c..7ff0ce7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-11-21 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/91355
+ * g++.dg/torture/pr91355.C: New test.
+
2019-11-21 Iain Sandoe <iain@sandoe.co.uk>
* gcc.dg/gnu2x-attrs-1.c: Expect an error for the alias case
diff --git a/gcc/testsuite/g++.dg/torture/pr91355.C b/gcc/testsuite/g++.dg/torture/pr91355.C
new file mode 100644
index 0000000..7a385dc
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr91355.C
@@ -0,0 +1,28 @@
+// PR tree-optimization/91355
+// { dg-do run }
+// { dg-options "-std=c++14" }
+
+unsigned int d = 0;
+
+struct S {
+ S () { d++; }
+ S (const S &) { d++; }
+ ~S () { d--; }
+};
+
+void
+foo (int i) throw (int) // { dg-warning "dynamic exception specifications are deprecated" }
+{
+ if (i == 0)
+ throw 3;
+ S d;
+ throw 3;
+}
+
+int
+main ()
+{
+ try { foo (1); } catch (...) {}
+ if (d)
+ __builtin_abort ();
+}
diff --git a/gcc/tree-ssa-sink.c b/gcc/tree-ssa-sink.c
index eebff65..dbf1529 100644
--- a/gcc/tree-ssa-sink.c
+++ b/gcc/tree-ssa-sink.c
@@ -228,7 +228,7 @@ select_best_block (basic_block early_bb,
/* If result of comparsion is unknown, prefer EARLY_BB.
Thus use !(...>=..) rather than (...<...) */
&& !(best_bb->count.apply_scale (100, 1)
- > (early_bb->count.apply_scale (threshold, 1))))
+ >= early_bb->count.apply_scale (threshold, 1)))
return best_bb;
/* No better block found, so return EARLY_BB, which happens to be the