https://llvm.org/bugs/show_bug.cgi?id=24433
Bug ID: 24433
Summary: [AVX-512] LLVM ERROR: Cannot select: 0x2821680: v16f32
= X86ISD::FXOR
Product: tools
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llc
Assignee: unassignedb...@nondot.org
Reporter: anton.mitrok...@phystech.edu
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Here is a small reproducer:
;test.ll:
define void @foo() #0 {
allocas:
%mul_a_load_ = fsub <16 x float> <float -0.000000e+00, float -0.000000e+00,
float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float
-0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00,
float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float
-0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>,
undef
store <16 x float> %mul_a_load_, <16 x float>* undef, align 64
br label %pl_loop.i.i
pl_loop.i.i: ; preds = %pl_loop.i.i
br label %pl_loop.i.i
}
attributes #0 = { nounwind }
Run with
llc test.ll -mcpu=knl
Output:
LLVM ERROR: Cannot select: 0x2821680: v16f32 = X86ISD::FXOR 0x2820f90,
0x2821558
0x2820f90: v16f32 = undef [ID=1]
0x2821558: v16f32,ch = load 0x27c4c00, 0x28217a8,
0x28211e0<LD64[ConstantPool]
0x28217a8: i64 = X86ISD::Wrapper 0x28210b8 [ID=4]
0x28210b8: i64 = TargetConstantPool<<16 x i32> <i32 -2147483648, i32
-2147
48, i32 -2147483648, i32 -2147483648, i32
-2147483648>> 0 [ID=3]
0x28211e0: i64 = undef [ID=2]
In function: foo
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