From d64aea27b057326fa976272985c1f799be54233f Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 21 Nov 2019 17:21:46 +0000 Subject: 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. git-svn-id: https://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@278587 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 4 ++++ gcc/testsuite/ChangeLog | 3 +++ gcc/testsuite/g++.dg/torture/pr91355.C | 28 ++++++++++++++++++++++++++++ gcc/tree-ssa-sink.c | 2 +- 4 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/torture/pr91355.C diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0b3d05c8881..94048e3a741 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2019-11-21 Jakub Jelinek + PR tree-optimization/91355 + * tree-ssa-sink.c (select_best_block): Use >= rather than > + for early_bb scaled count with best_bb count comparison. + Backported from mainline 2019-11-20 Jakub Jelinek diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 665d42b7374..d50680c8af9 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2019-11-21 Jakub Jelinek + PR tree-optimization/91355 + * g++.dg/torture/pr91355.C: New test. + Backported from mainline 2019-11-20 Jakub Jelinek diff --git a/gcc/testsuite/g++.dg/torture/pr91355.C b/gcc/testsuite/g++.dg/torture/pr91355.C new file mode 100644 index 00000000000..7a385dc5bdd --- /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 345ed2b0329..5ac18289d90 100644 --- a/gcc/tree-ssa-sink.c +++ b/gcc/tree-ssa-sink.c @@ -229,7 +229,7 @@ select_best_block (basic_block early_bb, /* If result of comparsion is unknown, preffer 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 -- cgit v1.2.3