https://bugs.llvm.org/show_bug.cgi?id=36079
Bug ID: 36079
Summary: Miscompilation in code which LLVM partially vectorizes
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: ARM
Assignee: unassignedb...@nondot.org
Reporter: momchil.veli...@arm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19741
--> https://bugs.llvm.org/attachment.cgi?id=19741&action=edit
minimal testcase
The attached test program is miscompiled by LLVM, when targeting Arm
architecture, which includes NEON instructions, at optimisation levels -02,
-O3, -Os and -Oz. All the elements of the array `c` are expected to be set to
1, however the last one (`c[3]`) stays 3.
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