llvm-svn: 21706

* Output single-character strings as chars

llvm-svn: 21705

llvm-svn: 21704

llvm-svn: 21703

llvm-svn: 21702

llvm-svn: 21701

llvm-svn: 21700

llvm-svn: 21699

Lower debug info to noops.

llvm-svn: 21698

llvm-svn: 21697

LowerSetJmp/2005-05-05-OldUses.ll

llvm-svn: 21696

llvm-svn: 21695

llvm-svn: 21693

21164 is broken until expand works.

llvm-svn: 21692

Proof?

ubyte %bar(ubyte %x) {
entry:
        %tmp.1 = call ubyte %llvm.ctlz( ubyte %x )
        ret ubyte %tmp.1
}

==>

zapnot $16,1,$0
CTLZ $0,$0
subq $0,56,$0
zapnot $0,1,$0
ret $31,($26),1

llvm-svn: 21691

This implements set.ll:test20.

This triggers 2x on povray, 9x on mesa, 11x on gcc, 2x on crafty, 1x on eon,
6x on perlbmk and 11x on m88ksim.

It allows us to compile these two functions into the same code:

struct s { unsigned int bit : 1; };
unsigned foo(struct s *p) {
  if (p->bit)
    return 1;
  else
    return 0;
}
unsigned bar(struct s *p) { return p->bit; }

llvm-svn: 21690

llvm-svn: 21689

library function:
  isdigit(chr) -> 0 or 1 if chr is constant
  isdigit(chr) -> chr - '0' <= 9 otherwise

Although there are many calls to isdigit in llvm-test, most of them are
compiled away by macros leaving only this:

2 MultiSource/Applications/hexxagon

llvm-svn: 21688

llvm-svn: 21687

llvm-svn: 21686

llvm-svn: 21685

llvm-svn: 21684

for pointing out these errors.

llvm-svn: 21683

clear in the applicable comment.

llvm-svn: 21682

llvm-svn: 21681

llvm-svn: 21680

  actual spec (int -> uint)
* Add the ability to get/cache the strlen function prototype.
* Make sure generated values are appropriately named for debugging purposes
* Add the SPrintFOptimiation for 4 casts of sprintf optimization:
    sprintf(str,cstr) -> llvm.memcpy(str,cstr) (if cstr has no %)
    sprintf(str,"")   -> store sbyte 0, str
    sprintf(str,"%s",src) -> llvm.memcpy(str,src) (if src is constant)
    sprintf(str,"%c",chr) -> store chr, str   ; store sbyte 0, str+1

The sprintf optimization didn't fire as much as I had hoped:

  2 MultiSource/Applications/SPASS
  5 MultiSource/Benchmarks/McCat/18-imp
 22 MultiSource/Benchmarks/Prolangs-C/TimberWolfMC
  1 MultiSource/Benchmarks/Prolangs-C/assembler
  6 MultiSource/Benchmarks/Prolangs-C/unix-smail
  2 MultiSource/Benchmarks/mediabench/mpeg2/mpeg2dec

llvm-svn: 21679

llvm-svn: 21678

llvm-svn: 21677

population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.

llvm-svn: 21676

llvm-svn: 21675

llvm-svn: 21674

llvm-svn: 21673

llvm-svn: 21672

llvm-svn: 21671

llvm-svn: 21670

Neither of these activated as many times as was hoped:

strchr:
9 MultiSource/Applications/siod
1 MultiSource/Applications/d
2 MultiSource/Prolangs-C/archie-client
1 External/SPEC/CINT2000/176.gcc/176.gcc

llvm.memset:
no hits

llvm-svn: 21669

llvm-svn: 21668

llvm-svn: 21667

llvm-svn: 21666