use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...

llvm-svn: 70270

Construct and emit DW_TAG_inlined_subroutine DIEs for inlined subroutine scopes (only in FastISel mode). 

llvm-svn: 69116

to support C99 inline, GNU extern inline, etc.  Related bugzilla's
include PR3517, PR3100, & PR2933.  Nothing uses this yet, but it
appears to work.

llvm-svn: 68940

llvm-svn: 68747

llvm-svn: 68745

the key. This will cause it to create a new std::string, which isn't
wanted. Instead, pass back the "const char*". Modify the EmitString() method to
take a "const char*".

llvm-svn: 68741

avoiding sign extension for the top octet.  For "negative" chars, we'd print
stuff like:

.asciz	"\702...
now we print:
.asciz	"\302...

llvm-svn: 68577

llvm-svn: 67668

llvm-svn: 67580

same as a normal i80 {low64, high16} rather
than its own {high64, low16}.  A depressing number
of places know about this; I think I got them all.
Bitcode readers and writers convert back to the old
form to avoid breaking compatibility.

llvm-svn: 67562

For inline asm output operand that matches an input. Encode the input operand index in the high bits.

llvm-svn: 67387

Fix some significant problems with constant pools that resulted in unnecessary paddings between constant pool entries, larger than necessary alignments (e.g. 8 byte alignment for .literal4 sections), and potentially other issues.

1. ConstantPoolSDNode alignment field is log2 value of the alignment requirement. This is not consistent with other SDNode variants.
2. MachineConstantPool alignment field is also a log2 value.
3. However, some places are creating ConstantPoolSDNode with alignment value rather than log2 values. This creates entries with artificially large alignments, e.g. 256 for SSE vector values.
4. Constant pool entry offsets are computed when they are created. However, asm printer group them by sections. That means the offsets are no longer valid. However, asm printer uses them to determine size of padding between entries.
5. Asm printer uses expensive data structure multimap to track constant pool entries by sections.
6. Asm printer iterate over SmallPtrSet when it's emitting constant pool entries. This is non-deterministic.


Solutions:
1. ConstantPoolSDNode alignment field is changed to keep non-log2 value.
2. MachineConstantPool alignment field is also changed to keep non-log2 value.
3. Functions that create ConstantPool nodes are passing in non-log2 alignments.
4. MachineConstantPoolEntry no longer keeps an offset field. It's replaced with an alignment field. Offsets are not computed when constant pool entries are created. They are computed on the fly in asm printer and JIT.
5. Asm printer uses cheaper data structure to group constant pool entries.
6. Asm printer compute entry offsets after grouping is done.
7. Change JIT code to compute entry offsets on the fly.

llvm-svn: 66875

format strings with the standard ${:foo} syntax.

llvm-svn: 66527

existed was for llvm-gcc 3.4 (which used the __main hack) which 
is really really long dead.

llvm-svn: 66417

whether a global is dead or not.  This should fix PR3749 - linker adds 
spurious use to appending globals.  I can't reasonably add a testcase
for this, because the bc writer/reader strip dead constant users.

llvm-svn: 66404

them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379

Now we're using one gross, but quite robust hack :) (previous ones
did not work, for example, when ext_weak symbol was used deep inside
constant expression in the initializer).

The proper fix of this problem will require some quite huge asmprinter
changes and that's why was postponed. This fixes PR3629 by the way :)

llvm-svn: 65230

sure to print the value properly sext'd to the right pointer size.
This fixes PR3481.

llvm-svn: 63843

Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces.

llvm-svn: 63377

llvm-svn: 63198

compatibility with VC++.  Patch by Max Burke!

llvm-svn: 62813

llvm-svn: 62763

llvm-svn: 62279

llvm-svn: 62185

suggested by Chris.

llvm-svn: 62099

functions.

llvm-svn: 61345

The EH_frame and .eh symbols are now private, except for darwin9 and earlier.
The patch also fixes the definition of PrivateGlobalPrefix on pcc linux.

llvm-svn: 61242

Print a single parameter .file directive if we have an ELF target.

llvm-svn: 60480

llvm-svn: 59872

llvm-svn: 58963

string in the .ll and .s printers.

llvm-svn: 58962

and breaks llvm-gcc

llvm-svn: 58926

FIXME: it seems, that most of targets don't support
offsets wrt CPI/GlobalAddress', was it intentional?

llvm-svn: 58917

valid comments in inline assembly.
gcc.target/i386/20011009-1.c

llvm-svn: 57365

and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329

make it clearer what the function does.  No functional
change.

llvm-svn: 57325

isReg, etc., from isRegister, etc.

llvm-svn: 57006

llvm-svn: 56584

llvm-svn: 56583

llvm-svn: 56579