diff options
| author | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2013-07-09 20:28:37 +0000 |
| commit | 3517640443f0b5224e2a6414c246ac60016ee9d4 (patch) | |
| tree | 011ad059026ee96743b0327cd32e41679c4f4021 /lib/CodeGen/SelectionDAG/InstrEmitter.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/InstrEmitter.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/InstrEmitter.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp index 0639238b1e..e107276359 100644 --- a/lib/CodeGen/SelectionDAG/InstrEmitter.cpp +++ b/lib/CodeGen/SelectionDAG/InstrEmitter.cpp @@ -678,7 +678,13 @@ InstrEmitter::EmitDbgValue(SDDbgValue *SD, MIB.addReg(0U); } - MIB.addImm(Offset).addMetadata(MDPtr); + if (Offset != 0) // Indirect addressing. + MIB.addImm(Offset); + else + MIB.addReg(0U, RegState::Debug); + + MIB.addMetadata(MDPtr); + return &*MIB; } |