This bugzilla service is closed. All entries have been migrated to
Bug 186 - Test failures with MatrixXcf on GCC 4.3 32bit with SSE2
Summary: Test failures with MatrixXcf on GCC 4.3 32bit with SSE2
Alias: None
Product: Eigen
Classification: Unclassified
Component: Core - general (show other bugs)
Version: unspecified
Hardware: x86 - 32-bit All
: --- Unknown
Assignee: Nobody
Depends on:
Blocks: 3.0
  Show dependency treegraph
Reported: 2011-02-16 16:05 UTC by Benoit Jacob
Modified: 2019-12-04 10:19 UTC (History)
3 users (show)


Description Benoit Jacob 2011-02-16 16:05:03 UTC
This comes from bug 89 comment 37:


These tests are failing for me:
product_extra_3, product_symm_7, product_trmv_4, product_trsolve_3,
stable_norm_1, (nullary_4)

nullary_4 failed only once, but passed all the other times I tried, even with

stable_norm_1 is probably not critical - the test fails because norm() gives
the correct result

product_extra_3 failure has a different feel to it so probably another bug.

=== END QUOTE ===

These failures happen only in 32bit with SSE2 enabled.

On my 64bit system, I can reproduce with -m32 -msse2, but -m32 alone doesn't reproduce, and -mfpmath=387 doesn't reproduce either.

Happens on both GCC 4.3.3 and 4.3.5.
Comment 1 Benoit Jacob 2011-02-16 16:14:16 UTC
The problem doesn't exist with GCC 4.4.5.
Comment 2 Gael Guennebaud 2011-02-18 15:43:27 UTC
fixed by changeset 268e6271fbfc
Comment 3 Nobody 2019-12-04 10:19:10 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance:

Note You need to log in before you can comment on or make changes to this bug.