whether the constant is signed or unsigned, then casting

llvm-svn: 7252

Avoid a fall-through in the (stubby) treatment of the longjmp intrinsic
call which causes llc & lli to core-dump.

Add a sort-of treatment of cast double to ulong. I am not really sure
what a user should expect to see upon casting a negative FP value to
unsigned long long. But with what is given here, I was able to write
a program that could cast -123.456 to ulong and back and get -123.0,
which seems like a step in the right direction.  GCC seems to give you
0. I don't know if I'd consider that useful.

These cases were coming up in GNU coreutils-5.0.

llvm-svn: 7205

try to load or store through a bool*.

llvm-svn: 7195

leaving trash in the register, fixing anagram

llvm-svn: 7013

and longjmp as an abort!

llvm-svn: 6977

llvm-svn: 6844

llvm-svn: 6831

This allows us to not force the use of the EAX/AX registers!

llvm-svn: 6830

llvm-svn: 6828

llvm-svn: 6627

  This avoid generating a register to hold C, which in turn speeds up the
  register allocator by a lot: ~9% on 164.gzip and ~17% on 256.bzip2.  This
  also speeds up other passes.  This also speeds up execution of the program
  marginally, and makes the asm much easier to read. :)

llvm-svn: 6626

llvm-svn: 6583

* Fix cast of (short|ushort|int|uint) to bool to work right

llvm-svn: 6510

llvm-svn: 6499

llvm-svn: 6173

llvm-svn: 6151

llvm-svn: 6150

llvm-svn: 6148

llvm-svn: 6146

llvm-svn: 6113

llvm-svn: 6049

llvm-svn: 6046

to be.  In fact, it made stuff worse.  :(

llvm-svn: 6013

and exit of the function.  This fixes bug: Jello/2003-05-06-LivenessClobber.llx
and the Fhourstones benchmark

llvm-svn: 6010

llvm-svn: 5986

llvm-svn: 5949

llvm-svn: 5876

llvm-svn: 5875

llvm-svn: 5833

llvm-svn: 5829

llvm-svn: 5328

llvm-svn: 5324

This improves the performance of the power benchmark by a few percent.
This will be neccesary for SSE code, which requires 16 byte alignment of
the stack.

llvm-svn: 5320

llvm-svn: 5272

* Support arbitrary FP constants
* Fix bugs in frame layout for function calls and incoming arguments
* Insert copies for constant arguments to PHI nodes into the BOTTOM of
  predecessor blocks, not the top.
* Implement _floating point_ support: setcc, return, load, store, cast
* Fix several bugs in the cast instruction
* Abstract out call emission and load/store for FP
* Implement malloc/free without previous lowering pass.
* Make use of new forms of MachineOperand
* Implement _long_ support!
* Fix many bugs in FP support
* Change branch from je/jne to je/jmp
* Simplify code generated for GEP instructions

llvm-svn: 5223

llvm-svn: 5201

  fixed size allocas
* Revamp call emission to work with new frame manager

llvm-svn: 5178

* Add initial support for FP constants
* Add initial FP support for several instructions

llvm-svn: 5154

Changes to support configurable pointer size and endianness

llvm-svn: 5130

llvm-svn: 5104