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Fixed llc crash for zext (i1 -> i8) loads. 

llvm-svn: 92201
This commit is contained in:
Sanjiv Gupta 2009-12-28 04:53:24 +00:00
parent b999f68ed9
commit 1ecffe13b2
2 changed files with 39 additions and 2 deletions
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4
llvm/lib/Target/PIC16/PIC16ISelLowering.cpp
View File

@ -930,7 +930,7 @@ SDValue PIC16TargetLowering::ExpandLoad(SDNode *N, SelectionDAG &DAG) {
}
else if (VT == MVT::i16) {
BP = DAG.getNode(ISD::BUILD_PAIR, dl, VT, PICLoads[0], PICLoads[1]);
if (MemVT == MVT::i8)
if ((MemVT == MVT::i8) || (MemVT == MVT::i1))
Chain = getChain(PICLoads[0]);
else
Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other,
@ -942,7 +942,7 @@ SDValue PIC16TargetLowering::ExpandLoad(SDNode *N, SelectionDAG &DAG) {
BPs[1] = DAG.getNode(ISD::BUILD_PAIR, dl, MVT::i16,
PICLoads[2], PICLoads[3]);
BP = DAG.getNode(ISD::BUILD_PAIR, dl, VT, BPs[0], BPs[1]);
if (MemVT == MVT::i8)
if ((MemVT == MVT::i8) || (MemVT == MVT::i1))
Chain = getChain(PICLoads[0]);
else if (MemVT == MVT::i16)
Chain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other,

37
llvm/test/CodeGen/PIC16/C16-11.ll Normal file
View File

@ -0,0 +1,37 @@
;RUN: llc < %s -march=pic16
@c612.auto.a.b = internal global i1 false ; <i1*> [#uses=2]
@c612.auto.A.b = internal global i1 false ; <i1*> [#uses=2]
define void @c612() nounwind {
entry:
%tmp3.b = load i1* @c612.auto.a.b ; <i1> [#uses=1]
%tmp3 = zext i1 %tmp3.b to i16 ; <i16> [#uses=1]
%tmp4.b = load i1* @c612.auto.A.b ; <i1> [#uses=1]
%tmp4 = select i1 %tmp4.b, i16 2, i16 0 ; <i16> [#uses=1]
%cmp5 = icmp ne i16 %tmp3, %tmp4 ; <i1> [#uses=1]
%conv7 = zext i1 %cmp5 to i8 ; <i8> [#uses=1]
tail call void @expectWrap(i8 %conv7, i8 2)
ret void
}
define void @expectWrap(i8 %boolresult, i8 %errCode) nounwind {
entry:
%tobool = icmp eq i8 %boolresult, 0 ; <i1> [#uses=1]
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
tail call void @exit(i16 1)
unreachable
if.end: ; preds = %entry
ret void
}
define i16 @main() nounwind {
entry:
tail call void @c612()
ret i16 0
}
declare void @exit(i16) noreturn nounwind