https://bugs.llvm.org/show_bug.cgi?id=43951
Bug ID: 43951
Summary: [LoopVectorizer] Assertion `Instance.Lane > 0 ?
!Cost->isUniformAfterVectorization(cast<Instruction>(V
), VF) : true && "Uniform values only have lane zero"'
failed.
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Loop Optimizer
Assignee: unassignedb...@nondot.org
Reporter: pauls...@linux.vnet.ibm.com
CC: llvm-bugs@lists.llvm.org
Created attachment 22788
--> https://bugs.llvm.org/attachment.cgi?id=22788&action=edit
reduced testcase
clang -cc1 -triple s390x-ibm-linux -S -target-cpu z13 -O3 -vectorize-loops
-mllvm -disable-lftr -mllvm -enable-simple-loop-unswitch -mllvm -force-t
arget-instruction-cost=1 -faddrsig -o out.s -x ir tc_loopvec.ll
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