switching some stuff over to passing around MCSymbol* instead
of stem+ID.

llvm-svn: 97993

Derive DIType from DIScope. This simplifies getContext() where for members the context is a type. This also eliminates need of CompileUnitMaps maintained by dwarf writer.

llvm-svn: 97990

This is a first step towards eliminating checks in Descriptor constructors.

llvm-svn: 97975

llvm-svn: 97963

This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.

llvm-svn: 97947

llvm-svn: 97932

llvm-svn: 97917

(Rolling back r97906.)

llvm-svn: 97909

llvm-svn: 97906

Thanks Duncan!

llvm-svn: 97572

Constructors and operators for anonymous aggregates does not names. Do not force empty AT_name attribute in such cases.

llvm-svn: 97533

for alignment into the LSDA. If the TType base offset is emitted, then put the
padding there. Otherwise, put it in the call site table length. There will be no
conflict between the two sites when placing the padding in one place.

llvm-svn: 97277

llvm-svn: 97269

llvm-svn: 97200

the alignment requirement, if it no longer makes the TType base offset overflow
into extra bytes, then we need to pad to those bytes ourselves.

llvm-svn: 97196

llvm-svn: 97193

llvm-svn: 97192

will eliminate the need for padding in the "Call site table length". E.g., if
we have this:

    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0x7f  ## @TType base offset
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

with padding of 1. We want to emit the padding like this:
 
    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0xff  ## @TType base offset
        .space  1,0   ## Padding
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

and not with padding on the "Call site table length" entry.

llvm-svn: 97183

llvm-svn: 97169

llvm-svn: 97087

GCC_except_table label but before the Lexception, which the FDE references.
This causes problems as the FDE does not point to the start of an LSDA chunk.

Use an unnormalized uleb128 for the call-site table length that includes the
padding.

llvm-svn: 97078

segment.

llvm-svn: 96967

and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!

llvm-svn: 96492

Before setting scope end marker, pay attention to scope begin marker and existing scope end marker, if any. Scope must begin before it ends and nested inlined scope do not truncate surrounding scope.

llvm-svn: 96445

llvm-svn: 96290

It turns out that we emitted completely wrong common EH frame since the early beginning! The "z" CIE augmentation mark indicates that there is an extra word containing the size of augmentation section. However, even for frames w/o any augmentation data we emitted size uleb! (this is the case of "unwinding through C code"). Thus frame moves information was emitterd completely wrong.

llvm-svn: 96287

Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there

llvm-svn: 96285

llvm-svn: 95871

llvm-svn: 95840

almost always comments afterwards that need printing.

llvm-svn: 95839

the pointer values could be invalid.

llvm-svn: 95813

llvm-svn: 95781

llvm-svn: 95748

llvm-svn: 95740

The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86

llvm-svn: 95738

llvm-svn: 95737

OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734

llvm-svn: 95707

into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687

llvm-svn: 95646