http://llvm.org/bugs/show_bug.cgi?id=19331
Bug ID: 19331
Summary: [ARM64] An Assertion failure about INSERT_SUBREG in
EmitSubregNode()
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Test case:
--------------------------------------------------------------
#include "arm_neon.h"
uint64x1_t dotest_insert_subreg(uint64x2_t in0) {
return vdup_n_u64(vpaddd_u64(in0));
}
--------------------------------------------------------------
To run:
clang -O0 --target=arm64-linux-gnu -c test0.c
The error message is as following:
llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp:549: void
llvm::InstrEmitter::EmitSubregNode(llvm::SDNode*, llvm::DenseMap<llvm::SDValue,
unsigned int>&, bool, bool): Assertion `SRC && "No register class supports VT
and SubIdx for INSERT_SUBREG"' failed.
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