[LLVMbugs] [Bug 23363] New: [AVX512] bitcast assertion hits in SelectionDAG.cpp

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=23363

            Bug ID: 23363
           Summary: [AVX512] bitcast assertion hits in SelectionDAG.cpp
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: matt at pharr.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 14261
  --> https://llvm.org/bugs/attachment.cgi?id=14261&action=edit
test case

With top of tree and the attached test case, if I run "llc -mcpu=knl
bugpoint-reduced-simplified.ll", I get:

Assertion failed: (VT.getSizeInBits() == Operand.getValueType().getSizeInBits()
&& "Cannot BITCAST between types of different sizes!"), function getNode, file
SelectionDAG.cpp, line 2989.
[....]
Stack dump:
0.    Program arguments: llc -mcpu=knl bugpoint-reduced-simplified.ll 
1.    Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.ll'.
2.    Running pass 'X86 DAG->DAG Instruction Selection' on function
'@raytrace_tile___uniuniuniuniuniuniuniuniun_3C_Cunf_5B_4_5D__3E_un_3C_Cunf_5B_4_5D__3E_un_3C_unf_3E_un_3C_uni_3E_un_3C_s_5B__c_unLinearBVHNode_5D__3E_un_3C_s_5B__c_unTriangle_5D__3E_'
[2]    40640 illegal hardware instruction  llc -mcpu=knl
bugpoint-reduced-simplified.ll

-- 
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/20150428/07685e88/attachment.html>