Commit Graph

10056 Commits

Author SHA1 Message Date
Andrew Lenharth
590091975c Well, add support for ct* for 21264 only.
21164 is broken until expand works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21692 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 19:12:09 +00:00
Andrew Lenharth
fecf095292 Make promoteOp work for CT*
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21691 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 19:11:05 +00:00
Chris Lattner
693787a5ec Instcombine: cast (X != 0) to int, cast (X == 1) to int -> X iff X has only the low bit set.
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; }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21690 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 19:10:26 +00:00
Reid Spencer
cea6559f60 Implement the IsDigitOptimization for simplifying calls to the isdigit
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21688 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 18:58:28 +00:00
Reid Spencer
58b563ce43 * Correct the function prototypes for some of the functions to match the
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21679 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-04 03:20:21 +00:00
Andrew Lenharth
691ef2ba06 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 17:19:30 +00:00
Chris Lattner
f818cfe096 fix a bug in the 1 index GEP handling code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 16:44:45 +00:00
Reid Spencer
21506ff821 Implement optimizations for the strchr and llvm.memset library calls.
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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21669 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 07:23:44 +00:00
Chris Lattner
38bacf29e8 add direct support for making GEP instrs with one index
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21665 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 05:43:30 +00:00
Jeff Cohen
a97e8db835 Use ANSI-approved way of getting the value infinity (otherwise VC++ won't compile it)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21662 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 03:13:01 +00:00
Reid Spencer
9974ddab2b Avoid garbage output in the statistics display by ensuring that the
strings passed to Statistic's constructor are not destructable. The stats
are printed during static destruction and the SimplifyLibCalls module was
getting destructed before the statistics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21661 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 02:54:54 +00:00
Reid Spencer
e6ec8cc8c6 Add the StrNCmpOptimization which is similar to strcmp.
Unfortunately, this optimization didn't trigger on any llvm-test tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21660 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-03 01:43:45 +00:00
Reid Spencer
a1b4390938 Implement the fprintf optimization which converts calls like this:
fprintf(F,"hello") -> fwrite("hello",strlen("hello"),1,F)
  fprintf(F,"%s","hello") -> fwrite("hello",strlen("hello"),1,F)
  fprintf(F,"%c",'x') -> fputc('c',F)

This optimization fires severals times in llvm-test:

313 MultiSource/Applications/Burg
302 MultiSource/Benchmarks/Prolangs-C/TimberWolfMC
189 MultiSource/Benchmarks/Prolangs-C/mybison
175 MultiSource/Benchmarks/Prolangs-C/football
130 MultiSource/Benchmarks/Prolangs-C/unix-tbl


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21657 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 23:59:26 +00:00
Andrew Lenharth
8b9e3e6511 fold fp div by 0 to inf, the way gcc does. This is legal according to the FP spec
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21655 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 21:25:47 +00:00
Andrew Lenharth
abc73b3e5d Remove support for 1.0 style varargs
amusing of course, because we will have to go back to those semantics soon


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21654 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 19:07:27 +00:00
John Criswell
fe3706a12b Fixed a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21653 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 14:47:42 +00:00
Duraid Madina
40c9e6be3e support multiplication by constant negative integers
this constmul code is still buggy though, so beware. mul by 7427 is currently
broken, for example. will fix it when I get a moment :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21652 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 07:27:14 +00:00
Duraid Madina
4bd708d8a6 add support for bools to SELECT, this fixes Prolangs-C/bison from the
testsuite, however 09-vor is still dead (hopefully for other reasons!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21651 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-02 06:41:13 +00:00
Chris Lattner
9fb25db11e Implement getelementptr.ll:test11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21647 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-01 04:42:15 +00:00
Chris Lattner
37366c1ba8 Check for volatile loads only once.
Implement load.ll:test7


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21645 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-01 04:24:53 +00:00
Tanya Lattner
874abe50ac SMS for superblocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21643 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-01 01:27:47 +00:00
Tanya Lattner
be2b84aa9e Added extra constructor for superblocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21642 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-01 01:25:53 +00:00
Tanya Lattner
c50156360a Fixed bug in searchPath function for finding nodes between two recurrences.
Changed dependence analyzer to only use dep distances of 2 or less.
This is experimental.

Changed MSchedGraph to be able to represent more then one BB (first steps).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21641 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 23:07:59 +00:00
Andrew Lenharth
50d91d71a5 I was sure I had thought about this and there was a reason it should work.
But it is entirely possible I am just crazy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21640 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 14:19:13 +00:00
Alkis Evlogimenos
b1beff0f0d Do not use deprecated APIs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21639 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 07:13:31 +00:00
Reid Spencer
63a7513ac1 Fix a comment that stated the wrong thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21638 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 06:45:47 +00:00
Chris Lattner
9c9183aef4 Eliminate some random whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21637 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:44:07 +00:00
Chris Lattner
f76e7dc8d8 Codegen and legalize sin/cos/llvm.sqrt as FSIN/FCOS/FSQRT calls. This patch
was contributed by Morten Ofstad, with some minor tweaks and bug fixes added
by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21636 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:43:14 +00:00
Chris Lattner
08cae7f519 Doesn't support these nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21634 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:26:56 +00:00
Chris Lattner
17234b7d78 This target doesn't support the FSIN/FCOS/FSQRT nodes yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21633 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:26:06 +00:00
Chris Lattner
c5dcb53bea Add support for FSIN/FCOS when unsafe math ops are enabled. Patch contributed by
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21632 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:25:35 +00:00
Chris Lattner
5434b429c8 Add support for llvm.sqrt and sin/cos if unsafe math optimizations are enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21631 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:12:40 +00:00
Chris Lattner
34f74a6162 Expose an option allowing unsafe math optimizations. Patch contributed by
Morten Ofstad!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21630 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:09:52 +00:00
Chris Lattner
b42a9ffbe9 Lower llvm.sqrt -> fsqrt/sqrt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21629 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 04:07:50 +00:00
Chris Lattner
eed37bad01 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21627 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 03:44:07 +00:00
Reid Spencer
9f56b1feeb * Don't depend on "guessing" what a FILE* is, just require that the actual
type be obtained from a CallInst we're optimizing.
* Make it possible for getConstantStringLength to return the ConstantArray
  that it extracts in case the content is needed by an Optimization.
* Implement the strcmp optimization
* Implement the toascii optimization

This pass is now firing several to many times in the following MultiSource
tests:

Applications/Burg      -   7 (strcat,strcpy)
Applications/siod      -  13 (strcat,strcpy,strlen)
Applications/spiff     - 120 (exit,fputs,strcat,strcpy,strlen)
Applications/treecc    -  66 (exit,fputs,strcat,strcpy)
Applications/kimwitu++ -  34 (strcmp,strcpy,strlen)
Applications/SPASS     - 588 (exit,fputs,strcat,strcpy,strlen)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21626 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-30 03:17:54 +00:00
Reid Spencer
ff5525daf3 Implement the optimizations for "pow" and "fputs" library calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21618 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-29 09:39:47 +00:00
Reid Spencer
df4945bcb5 Remove optimizations that don't require both operands to be constant. These
are moved to simplify-libcalls pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21614 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-29 05:55:35 +00:00
Jeff Cohen
5882b92360 Consistently use 'class' to silence VC++
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21612 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-29 03:05:44 +00:00
Reid Spencer
1d3b71846b * Add constant folding for additional floating point library calls such as
sinh, cosh, etc.
* Make the name comparisons for the fp libcalls a little more efficient by
  switching on the first character of the name before doing comparisons.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21611 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 23:01:59 +00:00
Chris Lattner
2c56e8a23e Add support for FSQRT node, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21610 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 22:07:18 +00:00
Chris Lattner
5b103c20e3 These functions can set errno!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21609 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:52:31 +00:00
Chris Lattner
5afc124bdf Add some new X86 instrs, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21608 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:50:05 +00:00
Chris Lattner
3b6b63711e Codegen fabs/fabsf as FABS. Patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21607 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:48:42 +00:00
Chris Lattner
da6ba87d23 Legalize FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21606 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:44:33 +00:00
Chris Lattner
7f64464ff1 Add FSQRT, FSIN, FCOS nodes, patch contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21605 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 21:44:03 +00:00
Reid Spencer
5624c75f9f Remove from the TODO list those optimizations that are already handled by
constant folding implemented in lib/Transforms/Utils/Local.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21604 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 18:05:16 +00:00
Reid Spencer
8441a01146 Document additional libcall transformations that need to be written.
Help Wanted!

There's a lot of them to write.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21603 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-28 04:40:06 +00:00
Reid Spencer
716f49e5a2 Doxygenate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21602 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-27 21:29:20 +00:00
Chris Lattner
209a0aea22 remove 'statement with no effect' warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21600 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-27 20:12:17 +00:00