[llvm-bugs] [Bug 40816] New: InnerLoopVectorizer::emitSCEVChecks(llvm::Loop *, llvm::BasicBlock *): Assertion `!Cost->foldTailByMasking() && "Cannot SCEV check stride or overflow when folding tail"' failed.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40816

            Bug ID: 40816
           Summary: InnerLoopVectorizer::emitSCEVChecks(llvm::Loop *,
                    llvm::BasicBlock *): Assertion
                    `!Cost->foldTailByMasking() && "Cannot SCEV check
                    stride or overflow when folding tail"' failed.
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: mikael.holmen at ericsson.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 21501
  --> https://bugs.llvm.org/attachment.cgi?id=21501&action=edit
reproducer

Reproduce with:
  opt -S -o - -loop-vectorize bbi-23939_x86.ll -mtriple=x86_64-unknown-unknown
-mcpu=skylake-avx512 -enable-interleaved-mem-accesses=0

This seems to be similar to
  https://bugs.llvm.org/show_bug.cgi?id=39417
but the fix for that in r345959 doesn't seem to help here.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20190222/6687761c/attachment.html>