[Bug 1349570] Re: ICE in change_address_1, at emit-rtl.c:2019

[Kumar Venkataramanan]

Reproduced the bug with cbuild2 on linaro-4.8-branch with options
-mtune=cortex-a15 -mfpu=neon -marm -O2

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gcc-4.8-armhf-cross in Ubuntu.
https://bugs.launchpad.net/bugs/1349570

Title:
  ICE in change_address_1, at emit-rtl.c:2019

Status in Linaro GCC:
  Confirmed
Status in “gcc-4.8-armhf-cross” package in Ubuntu:
  New

Bug description:
  Found when trying to build the v8 javascript engine.
  Reproduced with gcc-linaro 4.8-2014.01 and gcc-linaro 4.8-2014.04.
  Cannot be reproduced with FSF gcc 4.8.2 or gcc 4.9.0.

  $ arm-linux-gnueabihf-g++ -fvisibility=hidden -mtune=cortex-a15 -mfpu=neon -marm -O2 testcase.ii
  testcase.ii: In member function ‘int G::SizeFromMap()’:
  testcase.ii:63:1: internal compiler error: in change_address_1, at emit-rtl.c:2019
   }
   ^

  Removing any of these flags eliminates the error.  Reproducible with -O2 and -O3 but not -O1 or -Os.
  Cannot be reproduced without -mtune=cortex-a15, even if one of -march=armv7ve or -march=armv7-a are provided.
  The problem is not seen with -mthumb (default) instead of -marm.

To manage notifications about this bug go to:
https://bugs.launchpad.net/gcc-linaro/+bug/1349570/+subscriptions