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Handle loading from/storing to undef pointers on SPU by inserting a

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random load/store, rather than crashing llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105710 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kalle Raiskila
2010-06-09 08:29:41 +00:00
parent 007afe4b4b
commit c6166c6bca
2 changed files with 8 additions and 1 deletions
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4
lib/Target/CellSPU/SPUISelDAGToDAG.cpp
View File

@@ -606,7 +606,9 @@ SPUDAGToDAGISel::DFormAddressPredicate(SDNode *Op, SDValue N, SDValue &Base,
Base = CurDAG->getTargetConstant(0, N.getValueType()); Base = CurDAG->getTargetConstant(0, N.getValueType());
Index = N; Index = N;
return true; return true;
} else if (Opc == ISD::Register || Opc == ISD::CopyFromReg) { } else if (Opc == ISD::Register
||Opc == ISD::CopyFromReg
||Opc == ISD::UNDEF) {
unsigned OpOpc = Op->getOpcode(); unsigned OpOpc = Op->getOpcode();
if (OpOpc == ISD::STORE || OpOpc == ISD::LOAD) { if (OpOpc == ISD::STORE || OpOpc == ISD::LOAD) {

5
test/CodeGen/CellSPU/loads.ll
View File

@@ -31,3 +31,8 @@ define <4 x i32> @func() {
ret <4 x i32> %rv3 ret <4 x i32> %rv3
} }
define <4 x float> @load_undef(){
;CHECK lqd $3, 0($3)
%val = load <4 x float>* undef
ret <4 x float> %val
}