commit b93bb0600ad084cdb0ecb635cb36e6e814168a72
author saaadhu <saaadhu@138bc75d-0d04-0410-961f-82ee72b054a4> Mon Dec 17 12:07:26 2018 +0000
committer saaadhu <saaadhu@138bc75d-0d04-0410-961f-82ee72b054a4> Mon Dec 17 12:07:26 2018 +0000
tree 4bbd1a48a805d02a49a78df4beac98997bc4548e
parent 230845da33c7aec4bfb83df79920518ce45a449a

2018-12-17  Senthil Kumar Selvaraj  <senthilkumar.selvaraj@microchip.com>

	Backport from trunk
	2018-12-17  Senthil Kumar Selvaraj  <senthilkumar.selvaraj@microchip.com>

	PR rtl-optimization/88253
	* combine.c (combine_simplify_rtx): Test for side-effects before
	substituting by zero.

2018-12-17  Senthil Kumar Selvaraj  <senthilkumar.selvaraj@microchip.com>

	Backport from trunk
	2018-12-17  Senthil Kumar Selvaraj  <senthilkumar.selvaraj@microchip.com>

	PR rtl-optimization/88253
	* gcc.target/avr/pr88253.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@267199 138bc75d-0d04-0410-961f-82ee72b054a4