https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77983
Bug ID: 77983
Summary: [5/6/7 Regression] destructor call optimized out
Product: gcc
Version: 6.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
Created attachment 39808
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39808&action=edit
test case
[forwarded from https://launchpad.net/bugs/1577891]
seen with 5, 6 and trunk, works with 4.8 and 4.9.
$ g++-4.8 -O1 -g -ggdb test.cpp && ./a.out
Before:000102030405060708090a0b0c0d0e0f10111213
After :0000000000000000000000000000000000000000
$ g++-6 -O1 -g -ggdb test.cpp && ./a.out
Before:000102030405060708090a0b0c0d0e0f10111213
After :000102030405060708090a0b0c0d0e0f10111213
$ g++-6 -O0 -g -ggdb test.cpp && ./a.out
Before:000102030405060708090a0b0c0d0e0f10111213
After :0000000000000000000000000000000000000000
