From efd142a92081d25766cccb493f0580d0d05ec19e Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Sat, 2 Feb 2008 04:07:54 +0000 Subject: 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. llvm-svn: 46659 --- llvm/lib/CodeGen/MachineModuleInfo.cpp | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'llvm/lib/CodeGen/MachineModuleInfo.cpp') diff --git a/llvm/lib/CodeGen/MachineModuleInfo.cpp b/llvm/lib/CodeGen/MachineModuleInfo.cpp index 5edeefb..6d285bd 100644 --- a/llvm/lib/CodeGen/MachineModuleInfo.cpp +++ b/llvm/lib/CodeGen/MachineModuleInfo.cpp @@ -1471,6 +1471,14 @@ bool DIVerifier::Verify(GlobalVariable *GV) { return true; } +/// isVerified - Return true if the specified GV has already been +/// verified as a debug information descriptor. +bool DIVerifier::isVerified(GlobalVariable *GV) { + unsigned &ValiditySlot = Validity[GV]; + if (ValiditySlot) return ValiditySlot == Valid; + return false; +} + //===----------------------------------------------------------------------===// DebugScope::~DebugScope() { @@ -1554,12 +1562,6 @@ DebugInfoDesc *MachineModuleInfo::getDescFor(Value *V) { return DR.Deserialize(V); } -/// Verify - Verify that a Value is debug information descriptor. -/// -bool MachineModuleInfo::Verify(Value *V) { - return VR.Verify(V); -} - /// AnalyzeModule - Scan the module for global debug information. /// void MachineModuleInfo::AnalyzeModule(Module &M) { @@ -1657,8 +1659,8 @@ unsigned MachineModuleInfo::RecordRegionEnd(Value *V) { /// RecordVariable - Indicate the declaration of a local variable. /// -void MachineModuleInfo::RecordVariable(Value *V, unsigned FrameIndex) { - VariableDesc *VD = cast(DR.Deserialize(V)); +void MachineModuleInfo::RecordVariable(GlobalValue *GV, unsigned FrameIndex) { + VariableDesc *VD = cast(DR.Deserialize(GV)); DebugScope *Scope = getOrCreateScope(VD->getContext()); DebugVariable *DV = new DebugVariable(VD, FrameIndex); Scope->AddVariable(DV); -- cgit v1.1