definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034

llvm-svn: 34029

X + C to promote LEA formation.  We would incorrectly apply it in some cases
(test) and miss it in others.

This fixes CodeGen/X86/2007-02-04-OrAddrMode.ll

llvm-svn: 33884

affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752

confusion with external linkage types.

llvm-svn: 33663

llvm-svn: 33657

llvm-svn: 33639

address nodes.

llvm-svn: 33636

for "inreg" calls

llvm-svn: 33631

llvm-svn: 33622

What compiler are people using that accepts this code?

llvm-svn: 33603

1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597

llvm-svn: 33585

llvm-svn: 33574

llvm-svn: 33571

for debugging and exception handling.

llvm-svn: 33550

llvm-svn: 33537

says that no $ prefix should be emitted on X86.

llvm-svn: 33495

llvm-svn: 33490

llvm-svn: 33489

llvm-svn: 33486

PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary.

llvm-svn: 33460

llvm-svn: 33455

llvm-svn: 33446

llvm-svn: 33441

llvm-svn: 33423

these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409

llvm-svn: 33400

Last check-in was bogus. There is no need to align the stack if the function is a leaf function (and without alloca).

llvm-svn: 33399

llvm-svn: 33388

- In x86-64 mode, symbols with external linkage (not just symbols which are
  defined externally) requires GOT indirect reference.
- Stylistic code clean up.

llvm-svn: 33345

llvm-svn: 33327

llvm-svn: 33323

delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315

the .zerofill directive emission to not be darwin-specific

llvm-svn: 33304

llvm-svn: 33303

non-statics.
* Introduce new option to output zero-initialized data to .bss section.
This can reduce size of binaries. Enable it by default for ELF &
Cygwin/Mingw targets. Probably, Darwin should be also added.

llvm-svn: 33299

llvm-svn: 33298

llvm-svn: 33291

use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

llvm-svn: 33286