* Allow the ExecuteAndWait to return negative values if a signal is
  detected as the reason for the child termination. This is needed to
  support bugpoint detecting bad things in its child processes.

llvm-svn: 24960

llvm-svn: 24956

whimper out of doing things the Right Way, and hack up a generic
'BRCALL' instruction, that gets generated when calls are lowered.
This gets selected by hand in the DAG isel, where it gets turned
into real (i.e. in tablegen) br.call instructions.

BUG: this dies on void calls, but seems to work otherwise?
llvm-svn: 24952

llvm-svn: 24951

llvm-svn: 24950

llvm-svn: 24948

BUG: calling printf(string, float) will load the float into the wrong
register, completely forget about loading the string, etce

llvm-svn: 24947

to IA64ISD

llvm-svn: 24946

the rough idea sketched out in http://nondot.org/sabre/LLVMNotes/CallGraphClass.txt,
allowing new spiffy implementations of the callgraph interface to be built.

Many thanks to Saem Ghani for contributing this!

llvm-svn: 24944

llvm-svn: 24943

i.e. r1/r12/rp are saved/restored regardless of scheduling/luck

TODO: calls to external symbols, indirect (function descriptor) calls,
      performance (we're being paranoid right now)

BUG: the code for handling calls to vararg functions breaks if FP
args are passed (this will make printf() go haywire so a bunch of
tests will fail)

BUG: this seems to trigger some legalize nastiness
llvm-svn: 24942

SPARCv8. (we copy sparcv8's workaround for tablegen not being nice about
ISD::CALL/TAILCALL)

llvm-svn: 24941

llvm-svn: 24939

Move the system dependent portion to lib/System/*/Alarm.inc. This makes the
SlowOperationInformer platform independent.

llvm-svn: 24938

dependent portion of the lib/Support/SlowOperationTimer code into the
lib/System implementation where it can be ported to different platforms.

llvm-svn: 24937

llvm-svn: 24935

llvm-svn: 24934

llvm-svn: 24926

llvm-svn: 24922

* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.

llvm-svn: 24921

llvm-svn: 24920

llvm-svn: 24919

bytes to pop off stack.
* Added support for X86 SETCC.

llvm-svn: 24917

llvm-svn: 24914

llvm-svn: 24911

llvm-svn: 24910

llvm-svn: 24908

llvm-svn: 24907

the right vector of -1's as its operand.

llvm-svn: 24906

llvm-svn: 24905

llvm-svn: 24904

llvm-svn: 24903

llvm-svn: 24901

llvm-svn: 24900

that were overloaded to work before and after the stackifier runs.  With the
new clean world, it is possible to write patterns for these instructions: woo!

This also adds a few simple patterns here and there, though there are a lot
still missing.  These should be easy to add though. :)

See the comments under "Floating Point Stack Support" for more details on
the new world order.

This patch as absolutely no effect on the generated code, woo!

llvm-svn: 24899

llvm-svn: 24898

llvm-svn: 24896

llvm-svn: 24890

llvm-svn: 24889

  for Darwin.
* Added lowering hook for ISD::RET. It inserts CopyToRegs for the return
  value (or store / fld / copy to ST(0) for floating point value). This
  eliminate the need to write C++ code to handle RET with variable number
  of operands.

llvm-svn: 24888