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| author | Evan Cheng <evan.cheng@apple.com> | 2008-02-02 04:07:54 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-02-02 04:07:54 +0000 |
| commit | a844bdeab31ef04221e7ef59a8467893584cc14d (patch) | |
| tree | 0536e06ef73d25184c28dd72de26a26cfda1a4d1 /lib/CodeGen/AsmPrinter.cpp | |
| parent | 1cf47cb21728c84342b15d9695b8a2433b3315a2 (diff) | |
SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46659 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter.cpp')
| -rw-r--r-- | lib/CodeGen/AsmPrinter.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp index 2acf287988..eac574386b 100644 --- a/lib/CodeGen/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter.cpp @@ -1289,6 +1289,12 @@ void AsmPrinter::printLabel(unsigned Id) const { O << "\n" << TAI->getPrivateGlobalPrefix() << "label" << Id << ":\n"; } +/// printDeclare - This method prints a local variable declaration used by +/// debug tables. +void AsmPrinter::printDeclare(const MachineInstr *MI) const { + O << "\n"; +} + /// PrintAsmOperand - Print the specified operand of MI, an INLINEASM /// instruction, using the specified assembler variant. Targets should /// overried this to format as appropriate. |