r267199 - in /branches/gcc-8-branch/gcc: Change...

[saaadhu@gcc.gnu.org]

Author: saaadhu
Date: Mon Dec 17 12:07:26 2018
New Revision: 267199

URL: https://gcc.gnu.org/viewcvs?rev=267199&root=gcc&view=rev
Log:
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.

Added:
    branches/gcc-8-branch/gcc/testsuite/gcc.target/avr/pr88253.c
Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/combine.c
    branches/gcc-8-branch/gcc/testsuite/ChangeLog