[llvm-bugs] [Bug 24433] New: [AVX-512] LLVM ERROR: Cannot select: 0x2821680: v16f32 = X86ISD::FXOR

[via llvm-bugs]

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: unassignedbugs at nondot.org
          Reporter: anton.mitrokhin at phystech.edu
                CC: llvm-bugs at 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

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20150812/d5f18e24/attachment.html>