[Bug rtl-optimization/79541] lra reads uninitialized memory (with invalid input)

2017-02-17 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79541 Jeffrey A. Law changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED CC|

[Bug rtl-optimization/79541] lra reads uninitialized memory (with invalid input)

2017-02-17 Thread vmakarov at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79541 --- Comment #3 from Vladimir Makarov --- Author: vmakarov Date: Fri Feb 17 16:10:59 2017 New Revision: 245536 URL: https://gcc.gnu.org/viewcvs?rev=245536=gcc=rev Log: 2017-02-17 Vladimir Makarov PR

[Bug rtl-optimization/79541] lra reads uninitialized memory (with invalid input)

2017-02-16 Thread vmakarov at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79541 --- Comment #2 from Vladimir Makarov --- The bug is not severe. It occurs only when wrong asm occurs. This asm is transformed into an USE and all its data is invalidated. If an insn is inserted before the USE we take a garbage as the offset

[Bug rtl-optimization/79541] lra reads uninitialized memory (with invalid input)

2017-02-16 Thread vmakarov at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79541 --- Comment #1 from Vladimir Makarov --- Thank you, Bernd. I've reproduced the bug and started to work on it.