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Commit Graph

18637 Commits

Author SHA1 Message Date
Misha Brukman
e2e8059814 Convert tabs to spaces
llvm-svn: 21703
2005-05-05 22:30:40 +00:00
Chris Lattner
3e946df29b new testcase for PR541
llvm-svn: 21702
2005-05-05 22:23:10 +00:00
Chris Lattner
64134a43a1 add support for undef values of opaque type, addressing PR541
llvm-svn: 21701
2005-05-05 22:21:19 +00:00
Chris Lattner
c390fbea0d Add some extra checks. Opaque types don't have a null marker.
llvm-svn: 21700
2005-05-05 20:57:00 +00:00
Chris Lattner
f83598edd5 new testcase
llvm-svn: 21699
2005-05-05 17:57:24 +00:00
Chris Lattner
6e8167d1c2 When hitting an unsupported intrinsic, actually print it
Lower debug info to noops.

llvm-svn: 21698
2005-05-05 17:55:17 +00:00
Andrew Lenharth
09c3c4add4 ctpop lowering in legalize
llvm-svn: 21697
2005-05-05 15:55:21 +00:00
Chris Lattner
adcc532d05 Fix a bug compimling Ruby, fixing this testcase:
LowerSetJmp/2005-05-05-OldUses.ll

llvm-svn: 21696
2005-05-05 15:47:43 +00:00
Chris Lattner
07e6a7ac34 new testcase for a bug Jim found
llvm-svn: 21695
2005-05-05 15:47:16 +00:00
Andrew Lenharth
8e2beec4d1 fix typo
llvm-svn: 21693
2005-05-04 19:25:37 +00:00
Andrew Lenharth
58ff51b153 Well, add support for ct* for 21264 only.
21164 is broken until expand works.

llvm-svn: 21692
2005-05-04 19:12:09 +00:00
Andrew Lenharth
9282d00d4f 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

llvm-svn: 21691
2005-05-04 19:11:05 +00:00
Chris Lattner
1c462db06f 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; }

llvm-svn: 21690
2005-05-04 19:10:26 +00:00
Chris Lattner
207e92ec5f new testcase
llvm-svn: 21689
2005-05-04 19:05:02 +00:00
Reid Spencer
c564fd819c 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

llvm-svn: 21688
2005-05-04 18:58:28 +00:00
Reid Spencer
793d169d29 Make sure both optimization cases get tested.
llvm-svn: 21687
2005-05-04 17:45:10 +00:00
Reid Spencer
04242d8b3a Add a test case for the IsDigitOptimization class.
llvm-svn: 21686
2005-05-04 17:34:55 +00:00
Andrew Lenharth
3cde1721c7 comment fix
llvm-svn: 21685
2005-05-04 15:56:34 +00:00
Andrew Lenharth
0ecfe05b76 see if the legalize code propery compensates for the additional zeros introduced
llvm-svn: 21684
2005-05-04 15:51:07 +00:00
Reid Spencer
d06dc0f95d Correct the descriptions of WHILE...END and RROT. Thanks to Lalo Martins
for pointing out these errors.

llvm-svn: 21683
2005-05-04 15:43:40 +00:00
Reid Spencer
dc2ab16e6f WHILE does not "pop" a value, it "examines" to top of stack. Make this
clear in the applicable comment.

llvm-svn: 21682
2005-05-04 15:33:48 +00:00
Andrew Lenharth
315a093ece added a use of ctpop to debug stuff with
llvm-svn: 21681
2005-05-04 15:20:16 +00:00
Andrew Lenharth
fd47801152 fixup argument
llvm-svn: 21680
2005-05-04 14:58:31 +00:00
Reid Spencer
8d2736401b * 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

llvm-svn: 21679
2005-05-04 03:20:21 +00:00
Misha Brukman
fc2b6af1b1 Minor clean-ups
llvm-svn: 21678
2005-05-03 20:30:34 +00:00
Andrew Lenharth
583f305fca initial descriptions of count intrinsics
llvm-svn: 21677
2005-05-03 18:01:48 +00:00
Andrew Lenharth
8b64bd0fd5 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.

llvm-svn: 21676
2005-05-03 17:19:30 +00:00
Reid Spencer
b28a320411 Fix this test to succeed even if "strchr" is on a call instruction.
llvm-svn: 21675
2005-05-03 17:09:38 +00:00
Reid Spencer
04b3cda068 Add a test case for SPrintFOptimization.
llvm-svn: 21674
2005-05-03 17:08:45 +00:00
Andrew Lenharth
0d415d9fa4 yea yea yea
llvm-svn: 21673
2005-05-03 17:00:48 +00:00
Andrew Lenharth
56638cf76c note the vararg change, and other stuff
llvm-svn: 21672
2005-05-03 16:59:09 +00:00
Andrew Lenharth
84cde851a5 pre add count tests
llvm-svn: 21671
2005-05-03 16:49:48 +00:00
Chris Lattner
9620dd281d fix a bug in the 1 index GEP handling code
llvm-svn: 21670
2005-05-03 16:44:45 +00:00
Reid Spencer
f52c228416 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

llvm-svn: 21669
2005-05-03 07:23:44 +00:00
Reid Spencer
e4895c439b Add a test case for StrChrOptimizer for -simplify-libcalls
llvm-svn: 21668
2005-05-03 06:22:41 +00:00
Misha Brukman
acbc3604de Clean up and correct llvmc configurations for C and C++
llvm-svn: 21667
2005-05-03 06:13:18 +00:00
Misha Brukman
02594aa1f7 std::string(NULL) does not a proper constructor make
llvm-svn: 21666
2005-05-03 06:10:51 +00:00
Chris Lattner
e53a188512 add direct support for making GEP instrs with one index
llvm-svn: 21665
2005-05-03 05:43:30 +00:00
Misha Brukman
c30b62238f Omit periods at the end of command-line switch explanations for consistency
llvm-svn: 21664
2005-05-03 05:36:14 +00:00
Reid Spencer
a77025d96d A new test case for the LLVMMemSetOptimization.
llvm-svn: 21663
2005-05-03 04:00:24 +00:00
Jeff Cohen
d33e8df701 Use ANSI-approved way of getting the value infinity (otherwise VC++ won't compile it)
llvm-svn: 21662
2005-05-03 03:13:01 +00:00
Reid Spencer
0c484ea7de 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.

llvm-svn: 21661
2005-05-03 02:54:54 +00:00
Reid Spencer
123f4e393f Add the StrNCmpOptimization which is similar to strcmp.
Unfortunately, this optimization didn't trigger on any llvm-test tests.

llvm-svn: 21660
2005-05-03 01:43:45 +00:00
Reid Spencer
da05f00bbf Correct the title and the success criteria: strcmp -> strncmp
llvm-svn: 21659
2005-05-03 00:52:19 +00:00
Reid Spencer
263c65154c Add a new test case for the StrNCmpOptimization.
llvm-svn: 21658
2005-05-03 00:50:43 +00:00
Reid Spencer
a5fcd1660f 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

llvm-svn: 21657
2005-05-02 23:59:26 +00:00
Reid Spencer
26558086d2 Add a test case for testing the FPrintFOptimization.
llvm-svn: 21656
2005-05-02 23:07:14 +00:00
Andrew Lenharth
d46211fc03 fold fp div by 0 to inf, the way gcc does. This is legal according to the FP spec
llvm-svn: 21655
2005-05-02 21:25:47 +00:00
Andrew Lenharth
1e1117ed7a Remove support for 1.0 style varargs
amusing of course, because we will have to go back to those semantics soon

llvm-svn: 21654
2005-05-02 19:07:27 +00:00
John Criswell
d1933cb2e4 Fixed a comment.
llvm-svn: 21653
2005-05-02 14:47:42 +00:00