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29283 Discussions

Optimization bug in 12.0.3?

konstantin83
Beginner
‎06-01-2011 04:42 PM
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Hello,

I've recently found something that looks like a compiler bug to me. I'm using ifort 12.0.3.174 and the bug is there when -O3 option is used. This is the simplest version of the program that has it, I hope it is self-explanatory: the value of 'index' variable at the end should be 1, but it is 0 instead with -O3 option. Everything works correct if the module aux_mod is defined in the same file as the main program or if I do not call the subroutine.

main.f90
aux_mod.f90
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Ron_Green
Moderator
‎06-02-2011 09:04 AM
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I will investigate, find what version this first showed itself, and get a bug report going.

ron
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Ron_Green
Moderator
‎06-03-2011 05:00 PM
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bug ID is DPD200170206

affects all versions of 12.x. Does not affect older 11.1 compiler versions.

ron
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Ron_Green
Moderator
‎05-01-2012 08:16 AM
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This bug was fixed in recent 12.1 compilers released after December 2011.

closing.

ron
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