It seems like it caused a bug:
https://bugs.llvm.org/show_bug.cgi?id=39486
From: cfe-commits on behalf of Matt
Arsenault via cfe-commits
Sent: 03 October 2018 03:01
To: cfe-commits@lists.llvm.org
Subject: r343653 - OpenCL: Mark printf format string argument
Author: arsenm
Date: Tue Oct 2 19:01:19 2018
New Revision: 343653
URL: http://llvm.org/viewvc/llvm-project?rev=343653&view=rev
Log:
OpenCL: Mark printf format string argument
Fixes not warning on format string errors.
Added:
cfe/trunk/test/SemaOpenCL/printf-format-string-warnings.cl
Modifie
