stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.

llvm-svn: 49663

llvm-svn: 49389

Corresponds to -fno-unwind-tables (usually default in gcc).

llvm-svn: 49361

llvm-svn: 48804

llvm-svn: 48793

llvm-svn: 45418

enabled by passing -tailcallopt to llc.  The optimization is
performed if the following conditions are satisfied:
* caller/callee are fastcc
* elf/pic is disabled OR
  elf/pic enabled + callee is in module + callee has
  visibility protected or hidden

llvm-svn: 42870

llvm-svn: 42459

llvm-svn: 42283

llvm-svn: 36658

llvm-svn: 36657

llvm-svn: 36264

llvm-svn: 33634

llvm-svn: 33628

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: 33290

llvm-svn: 32393

2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169

llvm-svn: 30162

llvm-svn: 30078

llvm-svn: 30070

llvm-svn: 29953

llvm-svn: 29307

values include small, kernel, medium, large, and default.

llvm-svn: 29009

Remove a spurious ;

llvm-svn: 28452

by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447

llvm-svn: 28437

FP arithmetic arguments and results are never NaNs or +=Infs. This includes
ignoring parity flag (PF) when checking for FP equality.

llvm-svn: 28432

Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses.  This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.

This fixes PR 759.

llvm-svn: 28074

Make the CBE and V9 backends create their own, since they're the only ones that use it.

llvm-svn: 26974

dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.

llvm-svn: 26315

passed.

llvm-svn: 22886

XMM registers.  There are many known deficiencies and fixmes, which will be
addressed ASAP.  The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.

The x86 backend will still default to x87 style FP.  To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.

An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
                        Sum += P[i]; return Sum; }

The inner loop looks like the following:
x87:
.LBB_foo_1:     # no_exit
        fldl (%esp)
        faddl (%eax,%ecx,8)
        fstpl (%esp)
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

SSE2:
        addsd (%eax,%ecx,8), %xmm0
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

llvm-svn: 22340

llvm-svn: 21962

Morten Ofstad!

llvm-svn: 21630

llvm-svn: 21422

Add new ppc beta option related to using condition registers
Make pattern isel control flag (-enable-pattern-isel) global and tristate
  0 == off
  1 == on
  2 == target default

llvm-svn: 21309

llvm-svn: 19567

Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137