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: [email protected]
Reporter: [email protected]
CC: [email protected]
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
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