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* [Bug tree-optimization/67486] New: ira-color.c sanitizer detects signed integer overflow
@ 2015-09-07 14:54 zeccav at gmail dot com
  2021-02-27  9:39 ` [Bug middle-end/67486] " zeccav at gmail dot com
  0 siblings, 1 reply; 2+ messages in thread
From: zeccav at gmail dot com @ 2015-09-07 14:54 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67486

            Bug ID: 67486
           Summary: ira-color.c sanitizer detects signed integer overflow
           Product: gcc
           Version: 5.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zeccav at gmail dot com
  Target Milestone: ---

Created attachment 36302
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36302&action=edit
C file to compile with g++ -Os -fPIC -std=gnu++11

// g++ -Os -fPIC -std=gnu++11
// sanitizer error message 
// gcc/ira-color.c:1816:41: runtime error: signed integer overflow: 2097195682
- -131071000 cannot be represented in type 'int [33]'
// offending statement "full_costs[j] -= conflict_costs[k];"
// Target: x86_64-unknown-linux-gnu
// COLLECT_GCC_OPTIONS='-Os' '-fPIC' '-std=gnu++11' '-shared-libgcc'
'-mtune=generic' '-march=x86-64'

The source is pretty large I am attaching it


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug middle-end/67486] ira-color.c sanitizer detects signed integer overflow
  2015-09-07 14:54 [Bug tree-optimization/67486] New: ira-color.c sanitizer detects signed integer overflow zeccav at gmail dot com
@ 2021-02-27  9:39 ` zeccav at gmail dot com
  0 siblings, 0 replies; 2+ messages in thread
From: zeccav at gmail dot com @ 2021-02-27  9:39 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67486

Vittorio Zecca <zeccav at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #8 from Vittorio Zecca <zeccav at gmail dot com> ---
Fixed in current trunk.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2015-09-07 14:54 [Bug tree-optimization/67486] New: ira-color.c sanitizer detects signed integer overflow zeccav at gmail dot com
2021-02-27  9:39 ` [Bug middle-end/67486] " zeccav at gmail dot com

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