https://bugs.llvm.org/show_bug.cgi?id=34635
Bug ID: 34635
Summary: r312791 causes SLP vectorizer to miscompile signed int
min reductions
Product: new-bugs
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: chandl...@gmail.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19165
--> https://bugs.llvm.org/attachment.cgi?id=19165&action=edit
test case
Test case attached. To reproduce:
% llc < slp_test.ll | clang -x assembler - -o slp_test.good && ./slp_test.good
minidx = 5
% opt < slp_test.ll -passes=slp-vectorizer | llc | clang -x assembler - -o
slp_test.bad && ./slp_test.bad
minidx = 6
<Abort>
I'm going to revert for now.
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