r239537 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed Aug 17 13:56:30 2016
New Revision: 239537

URL: https://gcc.gnu.org/viewcvs?rev=239537&root=gcc&view=rev
Log:
	PR middle-end/77259
	* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): If
	turning a call into __builtin_unreachable-like noreturn call, adjust
	gimple_call_set_fntype.
	* tree-cfgcleanup.c (fixup_noreturn_call): Remove lhs also if
	gimple_call_fntype has void return type.

	* g++.dg/ipa/devirt-52.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/ipa/devirt-52.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-cfgcleanup.c
    trunk/gcc/tree-ssa-pre.c