DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used.

llvm-svn: 68813

llvm-svn: 63653

llvm-svn: 63198

Removoe MachineModuleInfo methods (and related DebugInfoDesc class  hierarchy) that were used to handle debug info.

llvm-svn: 62199

Keep "has debug info" big in MachineModuleInfo to avoid circular dependency between AsmPrinter and CodeGen.

llvm-svn: 62191

- Emit DW_AT_byte_size for struct and union of size zero.
- Emit DW_AT_declaration for forward type declaration.

llvm-svn: 60812

an array that is empty.  Instead of requiring this array, allow a null pointer.
This shrinks all forward references of structs.

llvm-svn: 58959

because it declares a std::vector<MachineMove>, and strict
concept checking requires the definition of MachineMove to be
available.

llvm-svn: 57617

llvm-svn: 56475

llvm-svn: 56469

llvm-svn: 55779

functions and junk.

llvm-svn: 53279

llvm-svn: 53206

llvm-svn: 53202

llvm-svn: 53123

slow the compiler down at -O0 some 30% or more. Ooops.

llvm-svn: 53120

llvm-svn: 53003

llvm-svn: 53001

- Don't use GlobalVariable::LinkageTypes when unsigned works.

llvm-svn: 52987

- Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag.
- Correctly handle memcpy from constant string which is zero-initialized.

llvm-svn: 52891

Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

llvm-svn: 52884

match normal naming scheme.

llvm-svn: 52820

llvm-svn: 52808

llvm-svn: 52806

- Make sure that we're not recalculating the size of a vector
  that never changes.

llvm-svn: 52803

some uses of std::vector, where it's return std::vector by value. Yuck!

llvm-svn: 52800

llvm-svn: 52785

string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

llvm-svn: 52748

several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017

review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.

llvm-svn: 49064

marked read-write. Use const so that they can be allocated in a
read-only segment.

llvm-svn: 48800

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-svn: 46628

Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution.

llvm-svn: 46609

llvm-svn: 46569

legitimate way of representing global variable GV in debug info.

llvm-svn: 46565

llvm-svn: 46514

associated function is so marked.

llvm-svn: 46088

llvm-svn: 45697

llvm-svn: 45418