Segfault from clang when compiling OpenMP doacross loop

[jprotze]

Bugzilla Link	41099
Resolution	FIXED
Resolved on	Apr 22, 2019 15:13
Version	unspecified
OS	Linux
Blocks	#40566
Attachments	source file which leads to a segfault with clang 8.0.0-rc5, stack trace from compilation, diagnose file
CC	@zmodem,@tstellar
Fixed by commit(s)	r356198 r358923

Extended Description

Compiling the attached code with clang-8.0.0-rc5, I get a segmentation fault. I also attach the stack trace and the diagnostic file.

[jprotze]

assigned to @alexey-bataev

[jprotze]

The issue seems to be the privatization of j. If I move the declaration of j into the header of the inner for-loop, the compiler error is gone.

I also cannot reproduce this error with current master.

[alexey-bataev]

The issue seems to be the privatization of j. If I move the declaration of j
into the header of the inner for-loop, the compiler error is gone.

I also cannot reproduce this error with current master.

The bug is fixed in trunk already a couple of days ago.

[jprotze]

Does it make sense to pull that fix into the 8.0 branch?

[alexey-bataev]

Yes, if it is not too late

[zmodem]

Yes, if it is not too late

It's way too late. I'll put it on the list for 8.0.1.

[tstellar]

Which commit fixed this bug?

[alexey-bataev]

Which commit fixed this bug?

rL356198

[tstellar]

Merged: r358923

[tstellar]

mentioned in issue #40566