https://llvm.org/bugs/show_bug.cgi?id=25318
Bug ID: 25318
Summary: [AVX-512] llc generates incorrect code for
@llvm.x86.avx.hadd.ps.256
Product: tools
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
Assignee: unassignedb...@nondot.org
Reporter: vsevolod.livins...@frtk.ru
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Created attachment 15163
--> https://llvm.org/bugs/attachment.cgi?id=15163&action=edit
Reproducer.
llc generates incorrect code for @llvm.x86.avx.hadd.ps.256 with -mcpu=knl
option. With -mcpu=core-avx2 everything works fine.
Compile:
llc -mcpu=knl test.ll -o test.s
clang++ -march=knl test.s main.cpp
Run:
sde -knl -- a.out
clang version is trunk 250620
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