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Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62373 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1100,6 +1100,26 @@ SDNode *PPCDAGToDAGISel::Select(SDValue Op) {
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Chain), 0);
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Chain), 0);
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return CurDAG->SelectNodeTo(N, PPC::BCTR, MVT::Other, Chain);
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return CurDAG->SelectNodeTo(N, PPC::BCTR, MVT::Other, Chain);
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}
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}
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case ISD::DECLARE: {
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SDValue Chain = N->getOperand(0);
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SDValue N1 = N->getOperand(1);
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SDValue N2 = N->getOperand(2);
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FrameIndexSDNode *FINode = dyn_cast<FrameIndexSDNode>(N1);
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if (!FINode)
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break;
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if (N2.getOpcode() == ISD::ADD &&
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N2.getOperand(0).getOpcode() == PPCISD::Hi &&
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N2.getOperand(1).getOpcode() == PPCISD::Lo)
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N2 = N2.getOperand(0).getOperand(0);
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if (!isa<GlobalAddressSDNode>(N2))
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break;
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int FI = cast<FrameIndexSDNode>(N1)->getIndex();
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GlobalValue *GV = cast<GlobalAddressSDNode>(N2)->getGlobal();
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SDValue Tmp1 = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
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SDValue Tmp2 = CurDAG->getTargetGlobalAddress(GV, TLI.getPointerTy());
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return CurDAG->SelectNodeTo(N, TargetInstrInfo::DECLARE,
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MVT::Other, Tmp1, Tmp2, Chain);
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}
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}
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}
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return SelectCode(Op);
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return SelectCode(Op);
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@ -1134,14 +1134,11 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op,
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}
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}
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SDValue PPCTargetLowering::LowerGlobalAddress(SDValue Op,
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SDValue PPCTargetLowering::LowerGlobalAddress(SDValue Op,
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SelectionDAG &DAG) {
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SelectionDAG &DAG) {
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MVT PtrVT = Op.getValueType();
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MVT PtrVT = Op.getValueType();
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GlobalAddressSDNode *GSDN = cast<GlobalAddressSDNode>(Op);
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GlobalAddressSDNode *GSDN = cast<GlobalAddressSDNode>(Op);
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GlobalValue *GV = GSDN->getGlobal();
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GlobalValue *GV = GSDN->getGlobal();
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SDValue GA = DAG.getTargetGlobalAddress(GV, PtrVT, GSDN->getOffset());
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SDValue GA = DAG.getTargetGlobalAddress(GV, PtrVT, GSDN->getOffset());
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// If it's a debug information descriptor, don't mess with it.
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if (DAG.isVerifiedDebugInfoDesc(Op))
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return GA;
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SDValue Zero = DAG.getConstant(0, PtrVT);
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SDValue Zero = DAG.getConstant(0, PtrVT);
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const TargetMachine &TM = DAG.getTarget();
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const TargetMachine &TM = DAG.getTarget();
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19
test/CodeGen/PowerPC/2009-01-16-DeclareISelBug.ll
Normal file
19
test/CodeGen/PowerPC/2009-01-16-DeclareISelBug.ll
Normal file
@ -0,0 +1,19 @@
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; RUN: llvm-as < %s | llc -mtriple=powerpc-apple-darwin9.5
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; rdar://6499616
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%llvm.dbg.anchor.type = type { i32, i32 }
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%llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8* }
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@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 } ; <%llvm.dbg.anchor.type*> [#uses=1]
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@.str = internal constant [11 x i8] c"testcase.c\00" ; <[11 x i8]*> [#uses=1]
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@.str1 = internal constant [30 x i8] c"/Volumes/SandBox/NightlyTest/\00" ; <[30 x i8]*> [#uses=1]
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@.str2 = internal constant [57 x i8] c"4.2.1 (Based on Apple Inc. build 5628) (LLVM build 9999)\00" ; <[57 x i8]*> [#uses=1]
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@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([11 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([30 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([57 x i8]* @.str2, i32 0, i32 0) } ; <%llvm.dbg.compile_unit.type*> [#uses=0]
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@"\01LC" = internal constant [13 x i8] c"conftest.val\00" ; <[13 x i8]*> [#uses=1]
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define i32 @main() nounwind {
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entry:
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%0 = call i8* @fopen(i8* getelementptr ([13 x i8]* @"\01LC", i32 0, i32 0), i8* null) nounwind ; <i8*> [#uses=0]
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unreachable
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}
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declare i8* @fopen(i8*, i8*)
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