https://bugs.llvm.org/show_bug.cgi?id=34743
Bug ID: 34743
Summary: After r311849 Loop Vectorizer generates broken code
Product: tools
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: opt
Assignee: unassignedb...@nondot.org
Reporter: serguei.kat...@azul.com
CC: llvm-bugs@lists.llvm.org
Created attachment 19203
--> https://bugs.llvm.org/attachment.cgi?id=19203&action=edit
Reproducer
After r311849 Loop Vectorizer generates a broken code.
The reproducer is attached.
to reproduce the issue I ran:
$ opt -mcpu=broadwell -loop-vectorize test.ll -S
Instruction does not dominate all uses!
%59 = sext i32 %scalar.recur to i64
%broadcast.splatinsert = insertelement <4 x i64> undef, i64 %59, i32 0
LLVM ERROR: Broken function found, compilation aborted!
Could you please fix this as soon as possible or disable the functionality
causing a regression.
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