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Author SHA1 Message Date
Chris Lattner
147af6b75f Implement Transforms/SimplifyCFG/return-merge.ll 
This actually causes us to turn code like:

  return C ? A : B;

into a select instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12617 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 18:13:43 +00:00
Chris Lattner
512c2481b1 New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12616 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 18:12:49 +00:00
Alkis Evlogimenos
bee8a094af Clean up code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12615 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 18:11:32 +00:00
Brian Gaeke
79ee87b1bb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12614 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 17:52:40 +00:00
Brian Gaeke
142e22a5f4 Add support for constant select expressions. Clarify the assertion failure msg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12613 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 17:52:29 +00:00
Chris Lattner
fb4b96e77e Minor speedup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12612 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 16:28:32 +00:00
Alkis Evlogimenos
1a66731da8 Fix type in comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12611 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 16:02:50 +00:00
Alkis Evlogimenos
13ce339442 Fix type in instruction builder instantiation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12610 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 15:51:03 +00:00
Chris Lattner
fdc38c4ad3 Make the verifier API more complete and useful. 
Patch contributed by Reid Spencer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12609 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 15:45:08 +00:00
Chris Lattner
0e4271f8b2 Make the verifier API more complete and useful 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 15:44:33 +00:00
Alkis Evlogimenos
8b28b6d187 Add more ADC and SBB variants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12607 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 07:11:10 +00:00
Chris Lattner
02bb481881 minor formatting change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12606 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 06:32:45 +00:00
Chris Lattner
5313f23b8c 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. :) :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12605 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 06:32:17 +00:00
Chris Lattner
87ab7e994f Fix a fairly nasty bug that prevented bugpoint from working quite right when 
hacking on programs with two functions that have the same name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12604 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 06:30:33 +00:00
Chris Lattner
58d84ced5f If the program returns a non-zero exit value, don't leave files laying 
around


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12603 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 05:33:06 +00:00
Chris Lattner
76351aa57e Fix wonky header 
Address PR305: LLVM tools will happily spew bytecode onto your terminal


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12602 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 05:06:57 +00:00
Chris Lattner
909f6cf350 Add new function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12601 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 05:04:12 +00:00
Chris Lattner
b234d460b2 Add new function, autoconf support required tho 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12600 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-02 05:04:03 +00:00
Chris Lattner
56d0f1157b Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12598 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 20:31:29 +00:00
Chris Lattner
c68bace452 Fix PR310 and TailDup/2004-04-01-DemoteRegToStack.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12597 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 20:28:45 +00:00
Chris Lattner
8b8ff16dba New testcase for PR310 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12596 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 20:28:35 +00:00
Chris Lattner
4edf6c043e Remove some assertions that are now bogus with the last patch I put in 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12595 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 19:21:46 +00:00
Chris Lattner
1869a466dd Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12593 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 19:09:49 +00:00
Chris Lattner
4f303bd4a5 Fix PR306: Loop simplify incorrectly updates dominator information 
Testcase: LoopSimplify/2004-04-01-IncorrectDomUpdate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12592 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 19:06:07 +00:00
Chris Lattner
afd5e2fdec New testcase for PR306 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12591 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 19:05:54 +00:00
Misha Brukman
c4b611af63 Fix grammar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12590 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 17:15:42 +00:00
Chris Lattner
6683dbf32e Add support for select constant expressions to the CBE, fixing SIOD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12589 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 05:28:26 +00:00
Chris Lattner
0526f01fec 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12588 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 04:06:09 +00:00
Chris Lattner
f1ac50ec53 Wrap at 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12587 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 04:03:27 +00:00
Chris Lattner
024e91f6f6 Allow converting a builder to an iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12586 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 04:03:10 +00:00
Chris Lattner
140385e0ac Tests for fp cmov's that I forgot to check in earlier 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12585 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 03:47:56 +00:00
Chris Lattner
2974b5b9bb Clear out all of the changes. Reset version numbers to 1.3 
add note about select


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12584 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-01 00:41:31 +00:00
Brian Gaeke
da44b15125 Add clear() forwarding method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12580 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:43:12 +00:00
Chris Lattner
68626c2b30 Generate slightly smaller code, "test R, R" instead of "cmp R, 0" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12579 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:22:36 +00:00
Chris Lattner
08bde1870a The X86 backend no longer needs the select lowering pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12578 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:03:46 +00:00
Chris Lattner
352eb48f8e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12577 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:03:35 +00:00
Chris Lattner
c1bab32bc5 Add support for floating point conditional move instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12576 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:02:36 +00:00
Chris Lattner
30b2f72e7c Add support for FP cmoves 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12575 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:02:21 +00:00
Chris Lattner
1c54a85447 Add FP conditional move instructions, which annoyingly have special properties 
that require the asmwriter to be extended (printing implicit uses before the
explicit operands)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12574 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:02:13 +00:00
Chris Lattner
0e28eca4bc Add warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12573 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 22:00:30 +00:00
Chris Lattner
b4186e0ccd MBB::remove should not modify the iterator passed in 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12572 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 21:59:59 +00:00
Chris Lattner
4f6410f5cb MachineBasicBlock::remove should not modify the iterator passed in 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12571 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 21:59:29 +00:00
Chris Lattner
0c58897d1c Improve description, add warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12570 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 21:59:07 +00:00
Chris Lattner
83706a5a3a MachineBasicBlock::remove should not change the iterator passed into it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12569 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 21:58:50 +00:00
Brian Gaeke
368c5da198 Factor out getStaticStackSize from InsertPrologCode(), so that I can more 
easily steal it for a separate use in the reoptimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12568 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 20:58:37 +00:00
Brian Gaeke
60d6e54c72 Use the true, decoded name of the archive member in getObjectType. 
In ReadArchiveBuffer, make sure that MemberName is set in the case where
getObjectType would want to return SVR4LongFilename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12567 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 19:51:00 +00:00
Chris Lattner
91ef460285 Avoid TRUE and FALSE which apparently conflict with some macros on OSX 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12566 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 03:49:47 +00:00
Chris Lattner
1438102576 Fix linking of constant expr casts due to type resolution changes. With 
this and the other patches 253.perlbmk links again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12565 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 02:58:28 +00:00
Chris Lattner
4b2f08a3a9 Add support for constant expr casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12564 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 02:56:11 +00:00
Chris Lattner
1e490ba4cd Add support for reading constantexpr select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12563 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-31 02:53:59 +00:00