[Bug 1194123]

[Hjl-0]

Author: hjl
Date: Mon Mar 31 16:21:30 2014
New Revision: 208963

URL: http://gcc.gnu.org/viewcvs?rev=208963&root=gcc&view=rev
Log:
Backport revision 201326

gcc/

	PR rtl-optimization/60700
	2013-07-30  Zhenqiang Chen  <zhenqiang.chen at linaro.org>

	PR rtl-optimization/57637
	* function.c (move_insn_for_shrink_wrap): Also check the
	GEN set of the LIVE problem for the liveness analysis
	if it exists, otherwise give up.

gcc/testsuite/

	PR rtl-optimization/60700
	2013-07-30  Zhenqiang Chen  <zhenqiang.chen at linaro.org>

        * gcc.target/arm/pr57637.c: New testcase.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/gcc.target/arm/pr57637.c
Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/function.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog

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https://bugs.launchpad.net/bugs/1194123

Title:
  [gcc-linaro wrong-code regression] gcc 4.8.1-2ubuntu1 to
  4.8.1-3ubuntu1 breaks gtk on armhf

Status in The GNU Compiler Collection:
  Fix Released
Status in Linaro GCC:
  Confirmed
Status in Ubuntu:
  Triaged
Status in “gcc-4.8” package in Ubuntu:
  Fix Released

Bug description:
  * Something in that upload is creating problems for gtk on armhf:
  https://launchpad.net/ubuntu/+source/gcc-4.8/4.8.1-3ubuntu1

  * The tests started failing, as showed by the saucy test rebuild:
  https://launchpadlibrarian.net/142386450/buildlog_ubuntu-saucy-armhf.gtk%2B3.0_3.8.2-0ubuntu4_FAILEDTOBUILD.txt.gz

  tests/a11y/text fails on a "Cannot animate property 'background-
  image'" error

  The error can be reproduced on a porter box, downgrading gcc doing
  "make clean; make" in debian/build/shared/gtk leads to a working test.
  Building with -O0 workaround the problem, it fails when using -O1 or
  -O2 though

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