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author | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
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committer | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
commit | 3517640443f0b5224e2a6414c246ac60016ee9d4 (patch) | |
tree | 011ad059026ee96743b0327cd32e41679c4f4021 /lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
parent | 7d185e4e5b1da7e07e1c3b9539e2c9bc8e983e62 (diff) | |
download | llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.gz llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.bz2 llvm-3517640443f0b5224e2a6414c246ac60016ee9d4.tar.xz |
Reapply an improved version of r180816/180817.
Change the informal convention of DBG_VALUE machine instructions so that
we can express a register-indirect address with an offset of 0.
The old convention was that a DBG_VALUE is a register-indirect value if
the offset (operand 1) is nonzero. The new convention is that a DBG_VALUE
is register-indirect if the first operand is a register and the second
operand is an immediate. For plain register values the combination reg,
reg is used. MachineInstrBuilder::BuildMI knows how to build the new
DBG_VALUES.
rdar://problem/13658587
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185966 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
-rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 2a1ded04b4..e9bafc9242 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4422,11 +4422,15 @@ SelectionDAGBuilder::EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable, return false; if (Op->isReg()) - Op->setIsDebug(); - - FuncInfo.ArgDbgValues.push_back( + FuncInfo.ArgDbgValues.push_back(BuildMI(MF, getCurDebugLoc(), + TII->get(TargetOpcode::DBG_VALUE), + /* IsIndirect */ Offset != 0, + Op->getReg(), Offset, Variable)); + else + FuncInfo.ArgDbgValues.push_back( BuildMI(MF, getCurDebugLoc(), TII->get(TargetOpcode::DBG_VALUE)) .addOperand(*Op).addImm(Offset).addMetadata(Variable)); + return true; } |