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Author SHA1 Message Date
Chris Lattner
eba77e8c71 Ignore configure produced files 
llvm-svn: 12627
 2004-04-02 20:34:30 +00:00
Chris Lattner
5ad71e4688 Tweak libraries for scev changes 
llvm-svn: 12625
 2004-04-02 20:32:46 +00:00
Chris Lattner
defaefaed4 new testcase 
llvm-svn: 12624
 2004-04-02 20:27:47 +00:00
Chris Lattner
0a34ab8221 Comment out debugging printouts 
llvm-svn: 12623
 2004-04-02 20:26:46 +00:00
Chris Lattner
aee1b0ba23 New testcases for the indvars pass 
llvm-svn: 12622
 2004-04-02 20:26:04 +00:00
Chris Lattner
779e90e3e4 Tweak testcase to work with new indvars pass 
llvm-svn: 12621
 2004-04-02 20:25:26 +00:00
Chris Lattner
cf5bd8a9ab Rewrite the indvars pass to use the ScalarEvolution analysis. 
This also implements some new features for the indvars pass, including
linear function test replacement, exit value substitution, and it works with
a much more general class of induction variables and loops.

llvm-svn: 12620
 2004-04-02 20:24:31 +00:00
Chris Lattner
74911ffd6b Add a new analysis 
llvm-svn: 12619
 2004-04-02 20:23:17 +00:00
Chris Lattner
3f202e3a54 Fix the obvious bug in my previous checkin 
llvm-svn: 12618
 2004-04-02 18:15:10 +00:00
Chris Lattner
bca948c99d Implement Transforms/SimplifyCFG/return-merge.ll 
This actually causes us to turn code like:

  return C ? A : B;

into a select instruction.

llvm-svn: 12617
 2004-04-02 18:13:43 +00:00
Chris Lattner
872356f472 New testcase 
llvm-svn: 12616
 2004-04-02 18:12:49 +00:00
Alkis Evlogimenos
27ed33c309 Clean up code a bit. 
llvm-svn: 12615
 2004-04-02 18:11:32 +00:00
Brian Gaeke
73afcebba1 Only strip symbols if emitting bytecode to the assembly file. 
Move lowerselect pass to come after preselection.  Move machine
code construction and stack slots pass to come right before instruction
selection. This is to help fix perlbmk.

Update comments.

Make the sequence of passes in addPassesToJITCompile look more like
the sequence of passes in addPassesToEmitAssembly, including support
for -print-machineinstrs.

llvm-svn: 12614
 2004-04-02 17:52:40 +00:00
Brian Gaeke
3fb4f87195 Add support for constant select expressions. Clarify the assertion failure msg. 
llvm-svn: 12613
 2004-04-02 17:52:29 +00:00
Chris Lattner
b9a26ff8fc Minor speedup 
llvm-svn: 12612
 2004-04-02 16:28:32 +00:00
Alkis Evlogimenos
85e007a6dc Fix type in comments 
llvm-svn: 12611
 2004-04-02 16:02:50 +00:00
Alkis Evlogimenos
84ee10f9e1 Fix type in instruction builder instantiation 
llvm-svn: 12610
 2004-04-02 15:51:03 +00:00
Chris Lattner
0d20ff2e86 Make the verifier API more complete and useful. 
Patch contributed by Reid Spencer

llvm-svn: 12609
 2004-04-02 15:45:08 +00:00
Chris Lattner
c0fede30c5 Make the verifier API more complete and useful 
llvm-svn: 12608
 2004-04-02 15:44:33 +00:00
Alkis Evlogimenos
20b074682c Add more ADC and SBB variants 
llvm-svn: 12607
 2004-04-02 07:11:10 +00:00
Chris Lattner
ec5b2f9597 minor formatting change 
llvm-svn: 12606
 2004-04-02 06:32:45 +00:00
Chris Lattner
950f3fac90 Fix two pretty serious bugs: 
1. Each time the loop extractor extracted a loop, we would leak a module.
  2. When we extracted a loop, we didn't add the new function to the list of
     miscompiled functions.  Thus if the bug was in a loop nest and we
     extracted it, we could actually *LOSE THE BUG*, which is very bad.

With these patches, bugpoint has successfully found a bug for me in a function
with several nested loops, and cut it down to just one of them. :) :)

llvm-svn: 12605
 2004-04-02 06:32:17 +00:00
Chris Lattner
54aa691a5c Fix a fairly nasty bug that prevented bugpoint from working quite right when 
hacking on programs with two functions that have the same name.

llvm-svn: 12604
 2004-04-02 06:30:33 +00:00
Chris Lattner
b3f5ab8d5b If the program returns a non-zero exit value, don't leave files laying 
around

llvm-svn: 12603
 2004-04-02 05:33:06 +00:00
Chris Lattner
a262913211 Fix wonky header 
Address PR305: LLVM tools will happily spew bytecode onto your terminal

llvm-svn: 12602
 2004-04-02 05:06:57 +00:00
Chris Lattner
d6b2556f07 Add new function 
llvm-svn: 12601
 2004-04-02 05:04:12 +00:00
Chris Lattner
2ef79bf28a Add new function, autoconf support required tho 
llvm-svn: 12600
 2004-04-02 05:04:03 +00:00
Chris Lattner
8c22ebb727 Bug fixed 
llvm-svn: 12598
 2004-04-01 20:31:29 +00:00
Chris Lattner
973cb73b4f Fix PR310 and TailDup/2004-04-01-DemoteRegToStack.llx 
llvm-svn: 12597
 2004-04-01 20:28:45 +00:00
Chris Lattner
1fe2d63344 New testcase for PR310 
llvm-svn: 12596
 2004-04-01 20:28:35 +00:00
Chris Lattner
441ab4b903 Remove some assertions that are now bogus with the last patch I put in 
llvm-svn: 12595
 2004-04-01 19:21:46 +00:00
Chris Lattner
061c03a1d0 Bug fixed 
llvm-svn: 12593
 2004-04-01 19:09:49 +00:00
Chris Lattner
eda638b0be Fix PR306: Loop simplify incorrectly updates dominator information 
Testcase: LoopSimplify/2004-04-01-IncorrectDomUpdate.ll

llvm-svn: 12592
 2004-04-01 19:06:07 +00:00
Chris Lattner
100de6d67e New testcase for PR306 
llvm-svn: 12591
 2004-04-01 19:05:54 +00:00
Misha Brukman
da1fac0cee Fix grammar. 
llvm-svn: 12590
 2004-04-01 17:15:42 +00:00
Chris Lattner
ef90bac3e3 Add support for select constant expressions to the CBE, fixing SIOD 
llvm-svn: 12589
 2004-04-01 05:28:26 +00:00
Chris Lattner
b6e4e5a95e Simplify code by using the more powerful BuildMI forms. 
Implement a small optimization.  In test/Regression/CodeGen/X86/select.ll,
we now generate this for foldSel3:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fstp %ST(1)
        ret

Instead of:

foldSel3:
        mov %AL, BYTE PTR [%ESP + 4]
        fld DWORD PTR [%ESP + 8]
        fld DWORD PTR [%ESP + 12]
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, DWORD PTR [%ESP + 20]
        cmp %EAX, %ECX
        fxch %ST(1)
        fcmovae %ST(0), %ST(1)
***     fxch %ST(1)
***     fstp %ST(0)
        ret

In practice, this only effects code size: performance should be basically
unaffected.

llvm-svn: 12588
 2004-04-01 04:06:09 +00:00
Chris Lattner
78027ca4ff Wrap at 80 cols 
llvm-svn: 12587
 2004-04-01 04:03:27 +00:00
Chris Lattner
c241db65d6 Allow converting a builder to an iterator 
llvm-svn: 12586
 2004-04-01 04:03:10 +00:00
Chris Lattner
ae7950aef4 Tests for fp cmov's that I forgot to check in earlier 
llvm-svn: 12585
 2004-04-01 03:47:56 +00:00
Chris Lattner
592949e887 Clear out all of the changes. Reset version numbers to 1.3 
add note about select

llvm-svn: 12584
 2004-04-01 00:41:31 +00:00
Brian Gaeke
e7f4f73f67 Add clear() forwarding method. 
llvm-svn: 12580
 2004-03-31 22:43:12 +00:00
Chris Lattner
2e0755a058 Generate slightly smaller code, "test R, R" instead of "cmp R, 0" 
llvm-svn: 12579
 2004-03-31 22:22:36 +00:00
Chris Lattner
97e8b80649 The X86 backend no longer needs the select lowering pass. 
llvm-svn: 12578
 2004-03-31 22:03:46 +00:00
Chris Lattner
e5d60adc20 Codegen FP select instructions into X86 conditional moves. Annoyingly enough 
the X86 does not support a full set of fp cmove instructions, so we can't always
fold the condition into the select.  :(  Yuck.

llvm-svn: 12577
 2004-03-31 22:03:35 +00:00
Chris Lattner
d50df93168 Add support for floating point conditional move instructions 
llvm-svn: 12576
 2004-03-31 22:02:36 +00:00
Chris Lattner
4d543b4201 Add support for FP cmoves 
llvm-svn: 12575
 2004-03-31 22:02:21 +00:00
Chris Lattner
e4fa3010db Add FP conditional move instructions, which annoyingly have special properties 
that require the asmwriter to be extended (printing implicit uses before the
explicit operands)

llvm-svn: 12574
 2004-03-31 22:02:13 +00:00
Chris Lattner
6aaea5f86b Add warning 
llvm-svn: 12573
 2004-03-31 22:00:30 +00:00
Chris Lattner
bfe4dd0f90 MBB::remove should not modify the iterator passed in 
llvm-svn: 12572
 2004-03-31 21:59:59 +00:00