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6164 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
Chris Lattner
92e84229e1 Fix a latent bug in select constantexpr handling that was broke 253.perlbmk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12562 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 22:51:03 +00:00
Alkis Evlogimenos
a8db01ac83 Correctly update LiveVariables when an instruction changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12561 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 22:44:39 +00:00
Chris Lattner
307ecbaddb Fold comparisons into select instructions, making much better code and 
using our broad selection of movcc instructions.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12560 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 22:39:09 +00:00
Chris Lattner
87d3bb5dfa Implement spill code folding for all of the conditional move instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12554 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 21:29:47 +00:00
Chris Lattner
12d96a0b4d Add direct support for integer select instructions, though we still don't support 
folding compares into the select yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12553 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 21:22:00 +00:00
Chris Lattner
bc280abd46 Fix bug: Assembler/2004-03-30-UnclosedFunctionCrash.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12551 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 20:58:25 +00:00
Chris Lattner
a5cdab7101 Fix some serious bugs in the cmov descriptions, which didn't cause a problem because 
we never generated them

Make indentation a bit more consistent


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12549 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 20:18:02 +00:00
Brian Gaeke
87fa610ee0 Start cleaning up this pass so that I can debug it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12548 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 19:53:46 +00:00
Chris Lattner
552112f2f8 Now that all the code generators support the select instruction, and the instcombine 
pass can eliminate many nasty cases of them, start generating them in the optimizers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12545 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 19:44:05 +00:00
Chris Lattner
c32b30a429 Implement select.ll:test[3-6] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12544 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 19:37:13 +00:00
Chris Lattner
6f2ab04e91 Fix a fairly major performance problem. If a PHI node had a constant as 
an incoming value from a block, the selector would evaluate the constant
at the TOP of the block instead of at the end of the block.  This made the
live range for the constant span the entire block, increasing register
pressure needlessly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12542 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 19:10:12 +00:00
Chris Lattner
5abd61f6d9 Add the select lowering pass to get initial support for select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12541 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 18:41:59 +00:00
Chris Lattner
18bdbc3dda Add a simple select instruction lowering pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12540 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 18:41:10 +00:00
Chris Lattner
fc33d30446 Add some new methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12539 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-30 00:20:08 +00:00
Brian Gaeke
eb8863db90 Don't warn about a null live range if the Value is a ConstantIntegral. 
Otherwise, if you're in debugging mode, you get warnings for (apparently)
every immediate constant in the function during reg. allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12538 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 21:58:41 +00:00
Brian Gaeke
47b716483e Change how the beginnings and ends of MachineFunctions are printed. Get 
rid of the funny cast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12537 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 21:58:31 +00:00
Chris Lattner
db81395452 Adjust to new itf 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12534 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 20:42:49 +00:00
Chris Lattner
d25e3ecb3c Handle -0.0 correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12530 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 19:51:24 +00:00
Chris Lattner
4dcb5401e4 Add a bunch of methods that should have been added a long time ago. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12526 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 02:37:53 +00:00
Chris Lattner
944cfafe76 Add another check 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12525 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 00:29:36 +00:00
Chris Lattner
e83593b2d3 Fix an assertion 
Contributed by Reid Spencer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12524 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 00:17:20 +00:00
Chris Lattner
11cad517a1 Make error message a bit nicer. 
Contributed by Reid Spencer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12523 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-29 00:16:01 +00:00
Chris Lattner
e3651f00e8 Add two methods which have been needed for a long time: Type::get(Un)signedVersion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12522 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-26 21:43:22 +00:00
Chris Lattner
4df1b8aa26 X % -1 == X % 1 == 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12520 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-26 16:11:24 +00:00
Chris Lattner
ebd985cb87 Two changes: 
#1 is to unconditionally strip constantpointerrefs out of
instruction operands where they are absolutely pointless and inhibit
optimization.  GRRR!

#2 is to implement InstCombine/getelementptr_const.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12519 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-25 22:59:29 +00:00
Chris Lattner
698c4a4bbb Minor efficiency improvement, finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12517 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-25 22:56:03 +00:00
Chris Lattner
e151259288 Hrm, we were leaking ~1M of garbage that valgrind never told us about because 
it was "reachable".  Cute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12515 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-19 23:34:33 +00:00
Chris Lattner
7c881dffc9 Teach the optimizer to delete zero sized alloca's (but not mallocs!) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12507 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-19 06:08:10 +00:00
Chris Lattner
6b835360f1 Fix PR299: [Sparc] Code generator asserts on alloc of zero size type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12504 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-19 04:21:43 +00:00
Chris Lattner
ab18020cbd Malloc doesn't kill a load. This patch need not go into 1.2 though. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12500 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 17:01:26 +00:00
Chris Lattner
85c84e759e Fix a really nasty bug that was breaking ijpeg in LLC mode. We were incorrectly 
folding load instructions into other instructions across free instruction
boundaries.  Perhaps this will also fix the other strange failures?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12494 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 06:29:54 +00:00
Chris Lattner
aa7ab53b99 Fix bug: CodeExtractor/2004-03-17-MissedLiveIns.ll 
With this fix we now successfully extract all 149 loops from 256.bzip2 without
crashing or miscompiling the program!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12493 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:56:32 +00:00
Chris Lattner
f6e43bc796 Add statistics to the loop extractor. The loop extractor has successfully 
extracted all 63 loops for Olden/bh without crashing and without
miscompiling the program!!!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12491 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:46:10 +00:00
Chris Lattner
fdded9f95a Fix problem with PHI nodes having multiple predecessors from different 
exit nodes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:43:18 +00:00
Chris Lattner
d07f899691 Fix CodeExtractor/2004-03-17-UpdatePHIsOutsideRegion.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12489 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:38:31 +00:00
Chris Lattner
5cc8ca6420 Seriously simplify and correct the PHI node handling code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12487 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 05:28:49 +00:00
Chris Lattner
04229c192b Fix CodeExtractor/2004-03-17-OutputMismatch.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12486 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 04:12:05 +00:00
Chris Lattner
b5c1dbf503 Fix several bugs in the extractor: 
1. Names were not put on the new arguments created (ok, this just helps sanity :)
2. Fix outgoing pointer values
3. Do not insert stores for values that had not been computed
4. Fix some wierd problems with the outset calculation

This fixes CodeExtractor/2004-03-14-DominanceProblem.ll, making the extractor
work on at least one simple case!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12484 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:49:40 +00:00
Chris Lattner
369287bab5 The code extractor needs dominator info. Provide it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:48:06 +00:00
Chris Lattner
33e197b777 Prune #includes, moving the module interface to the front. Note that this 
exposed the fact that the header was not self-contained.  There is a reason
we do things :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12481 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-18 03:15:29 +00:00
Chris Lattner
4781bc7142 Fix a HORRIBLY NASTY bug that caused siod to stop working last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12479 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 23:22:04 +00:00
Chris Lattner
7acd1ccb8a Fix compilation of mesa, which I broke earlier today 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12465 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 02:02:47 +00:00
Chris Lattner
e911979650 Be more accurate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12464 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 01:59:27 +00:00
Alkis Evlogimenos
eee91172fb Make the set of fixed (preallocated) intervals be a fixed superset of 
unhandled + handled. So unhandled is now including all fixed intervals
and fixed intervals never changes when processing a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12462 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-17 00:48:59 +00:00
Chris Lattner
50eafbc828 Fix bug in previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12458 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:36:49 +00:00
Chris Lattner
24ad00db5a Okay, so there is no reasonable way for tail duplication to update SSA form, 
as it is making effectively arbitrary modifications to the CFG and we don't
have a domset/domfrontier implementations that can handle the dynamic updates.
Instead of having a bunch of code that doesn't actually work in practice,
just demote any potentially tricky values to the stack (causing the problem
to go away entirely).  Later invocations of mem2reg will rebuild SSA for us.

This fixes all of the major performance regressions with tail duplication
from LLVM 1.1.  For example, this loop:

---
int popcount(int x) {
  int result = 0;
  while (x != 0) {
    result = result + (x & 0x1);
    x = x >> 1;
  }
  return result;
}
---
Used to be compiled into:

int %popcount(int %X) {
entry:
	br label %loopentry

loopentry:		; preds = %entry, %no_exit
	%x.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ]		; <int> [#uses=3]
	%result.1.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ]		; <int> [#uses=2]
	%tmp.1 = seteq int %x.0, 0		; <bool> [#uses=1]
	br bool %tmp.1, label %loopexit, label %no_exit

no_exit:		; preds = %loopentry
	%tmp.4 = and int %x.0, 1		; <int> [#uses=1]
	%tmp.6 = add int %tmp.4, %result.1.0		; <int> [#uses=1]
	%tmp.9 = shr int %x.0, ubyte 1		; <int> [#uses=1]
	br label %loopentry

loopexit:		; preds = %loopentry
	ret int %result.1.0
}

And is now compiled into:

int %popcount(int %X) {
entry:
        br label %no_exit

no_exit:                ; preds = %entry, %no_exit
        %x.0.0 = phi int [ %X, %entry ], [ %tmp.9, %no_exit ]          ; <int> [#uses=2]
        %result.1.0.0 = phi int [ 0, %entry ], [ %tmp.6, %no_exit ]             ; <int> [#uses=1]
        %tmp.4 = and int %x.0.0, 1              ; <int> [#uses=1]
        %tmp.6 = add int %tmp.4, %result.1.0.0          ; <int> [#uses=2]
        %tmp.9 = shr int %x.0.0, ubyte 1                ; <int> [#uses=2]
        %tmp.1 = seteq int %tmp.9, 0            ; <bool> [#uses=1]
        br bool %tmp.1, label %loopexit, label %no_exit

loopexit:               ; preds = %no_exit
        ret int %tmp.6
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12457 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:29:09 +00:00
Chris Lattner
c1a0623e86 This code was both incredibly complex and incredibly broken. Fix it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12456 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 23:23:11 +00:00
Brian Gaeke
54cc3c2135 The .type directive on Solaris uses the # character instead of @. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12454 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:52:04 +00:00
Brian Gaeke
6d339f9000 Fix bug in zero-extending of shorts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12453 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:45:42 +00:00
Brian Gaeke
032f80fbf1 Add UMULrr and SMULrr instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12452 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:13 +00:00
Brian Gaeke
79db7405f7 Use ! for comment char; it works in both Solaris as and GAS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12451 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:12 +00:00
Brian Gaeke
f57e364f65 Make getClass more robust by adding cLong. 
Add handling for Mul instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12450 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 22:37:11 +00:00
Chris Lattner
91408eba18 Punt if we see gigantic PHI nodes. This improves a huge interpreter loop 
testcase from 32.5s in -raise to take .3s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12443 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:52:53 +00:00
Chris Lattner
a2f652d420 Do not try to optimize PHI nodes with incredibly high degree. This reduces SCCP 
time from 615s to 1.49s on a large testcase that has a gigantic switch statement
that all of the blocks in the function go to (an intepreter).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12442 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:49:59 +00:00
Chris Lattner
4bebf08d15 Do not copy gigantic switch instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12441 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 19:45:22 +00:00
Chris Lattner
7d1bd336ab Fix PR296: [execution engines] Unhandled cast constant expression 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12435 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 08:38:56 +00:00
Chris Lattner
85ebd541fa Fix a regression from this patch: 
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20040308/013095.html

Basically, this patch only updated the immediate dominatees of the header node
to tell them that the preheader also dominated them.  In practice, ALL
dominatees of the header node are also dominated by the preheader.

This fixes: LoopSimplify/2004-03-15-IncorrectDomUpdate.
and PR293


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12434 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 06:00:15 +00:00
Chris Lattner
002be76733 Add some missing functions. Make sure to handle calls together in case the 
client has another VN implementation that can VN calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12427 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 03:41:35 +00:00
Chris Lattner
6ae9eb1566 Fix PR294 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12425 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-16 01:45:55 +00:00
Alkis Evlogimenos
63dd4ff809 Add LAHF instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12424 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 17:20:14 +00:00
Chris Lattner
6dd196f762 Restore old inlining heuristic. As the comment indicates, this is a nasty 
horrible hack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12423 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:38:14 +00:00
Chris Lattner
fcead4f426 Ok, the assertion was bogus. Calls that do not read/write memory should not 
have an alias set, just like adds and subtracts don't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:28:07 +00:00
Chris Lattner
df209fcc7e This assertion is bogus now that calls do not necessarily read/write memory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12421 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 06:24:15 +00:00
Chris Lattner
46234fd97f Add counters for the number of calls elimianted 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12420 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 05:46:59 +00:00
Chris Lattner
5a6e947f1d Implement CSE of call instructions in the most trivial case. This implements 
GCSE/call_cse.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12419 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 05:44:59 +00:00
Chris Lattner
bbcc147220 Fix a minor bug, implementing GCSE/call_pure_function.ll 
Also, add some stuff I missed before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12417 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:18:28 +00:00
Chris Lattner
118dd0ce3d Implement LICM of calls in simple cases. This is sufficient to move around 
sin/cos/strlen calls and stuff.  This implements:
  LICM/call_sink_pure_function.ll
  LICM/call_sink_const_function.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12415 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:11:30 +00:00
Chris Lattner
5b5f7c11d0 Don't be COMPLETELY pessimistic in the face of function calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:08:36 +00:00
Chris Lattner
992860c44e Deinline some virtual methods, provide better mod/ref answers through the 
use of the boolean queries


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12410 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:07:29 +00:00
Chris Lattner
b79d79297d Pass through the boolean queries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12409 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 04:06:46 +00:00
Chris Lattner
4244bb5bbd Teach basicaa about some stdc functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12408 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 03:36:49 +00:00
Chris Lattner
15d443b566 Mostly cosmetic improvements. Do fix the bug where a global value was considered an input. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 01:26:44 +00:00
Chris Lattner
0de632bfae Assert that input blocks meet the invariants we expect 
Simplify the input/output finder.  All elements of a basic block are
instructions.  Any used arguments are also inputs.  An instruction can only
be used by another instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12405 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 01:18:23 +00:00
Chris Lattner
5156c39d64 Fix several bugs in the loop extractor. In particular, subloops were never 
extracted, and a function that contained a single top-level loop never had
the loop extracted, regardless of how much non-loop code there was.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12403 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-15 00:02:02 +00:00
Chris Lattner
65826bf435 No correctness fixes here, just minor qoi fixes: 
* Don't insert a branch to the switch instruction after the call, just
  make it a single block.
* Insert the new alloca instructions in the entry block of the original
  function instead of having them execute dynamically
* Don't make the default edge of the switch instruction go back to the switch.
  The loop extractor shouldn't create new loops!
* Give meaningful names to the alloca slots and the reload instructions
* Some minor code simplifications


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12402 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 23:43:24 +00:00
Chris Lattner
12f390e9c0 Simplify code a bit, and fix bug CodeExtractor/2004-03-14-NoSwitchSupport.ll 
This also implements a two minor improvements:
  * Don't insert live-out stores IN the region, insert them on the code path
    that exits the region
  * If the region is exited to the same block from multiple paths, share the
    switch statement entry, live-out store code, and the basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12401 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 23:05:49 +00:00
Chris Lattner
0e06674287 Simplify the code a bit by making the collection of basic blocks to extract 
a member of the class.  While we're at it, turn the collection into a set
instead of a vector to improve efficiency and make queries simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12400 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 22:34:55 +00:00
Alkis Evlogimenos
a1a7148c4d Another API change to MRegisterInfo::foldMemoryOperand. Instead of a 
MachineBasicBlock::iterator take a MachineInstr*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12392 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:14:27 +00:00
Chris Lattner
41bc0b069c Split into two passes. Now there is the general loop extractor, usable on 
the command line, and the single loop extractor, usable by bugpoint


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12390 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 20:01:36 +00:00
Alkis Evlogimenos
39354c99a1 Change MRegisterInfo::foldMemoryOperand to return the folded 
instruction to make the API more flexible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12386 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 07:19:51 +00:00
Chris Lattner
97836fad2c Passes don't print stuff! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12385 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:17:53 +00:00
Chris Lattner
bf9eaddfb0 Do not create empty basic blocks when the lowerswitch pass expects blocks to 
be non-empty!  This fixes LowerSwitch/2004-03-13-SwitchIsDefaultCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12384 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:14:31 +00:00
Chris Lattner
bb41156c0c Minor random cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12382 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:01:47 +00:00
Chris Lattner
16d0eb0468 FunctionPass's should not define their own 'run' method. 
Require 'simplified' loops, not just raw natural loops.  This fixes
CodeExtractor/2004-03-13-LoopExtractorCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12381 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 04:01:06 +00:00
Chris Lattner
2ef703ec42 If a block is dead, dominators will not be calculated for it. Because of this 
loop information won't see it, and we could have unreachable blocks pointing to
the non-header node of blocks in a natural loop.  This isn't tidy, so have the
loopsimplify pass clean it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12380 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 03:59:22 +00:00
Chris Lattner
59c3569b14 Catch some more cases of broken code. The loop extractor seems to be creating 
situations where there is a branch that goes to a block in another function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12379 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 03:23:54 +00:00
Chris Lattner
ffada93273 Verify functions as they are produced if -debug is specified. Reduce 
curly braceage


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12378 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 03:17:22 +00:00
Chris Lattner
2eff85941f verifyFunction has been broken for a long time now. Fix it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12377 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 03:16:15 +00:00
Chris Lattner
1e3cb34753 Move prototype to IPO.h instead of Scalar.h 
Make sure that the file interface header (IPO.h) is included first
remove dead #incldue


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12375 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 02:37:16 +00:00
Chris Lattner
efddcfa0df Indent anon namespace properly, add copyright block 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12373 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 02:34:07 +00:00
Chris Lattner
c3c8703c3b Move to the IPO library. Utils shouldn't contain passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12372 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 02:32:27 +00:00
Chris Lattner
a2dc727ac4 DemoteRegToStack got moved from DemoteRegToStack.h to Local.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12368 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-14 02:13:38 +00:00
Chris Lattner
0cea42a560 Add some debugging output 
Fix InstCombine/2004-03-13-InstCombineInfLoop.ll which caused an infinite
loop compiling (I think) povray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12365 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 23:54:27 +00:00
Chris Lattner
619d3544b1 This change makes two big adjustments. 
* Be a lot more accurate about what the effects will be when inlining a call
   to a function when an argument is an alloca.
 * Dramatically reduce the penalty for inlining a call in a large function.
   This heuristic made it almost impossible to inline a function into a large
   function, no matter how small the callee is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12363 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 23:15:45 +00:00
Chris Lattner
786c5646e9 This little patch speeds up the loop used to update the dominator set analysis. 
On the testcase from GCC PR12440, which has a LOT of loops (1392 of which require
preheaders to be inserted), this speeds up the loopsimplify pass from 1.931s to
0.1875s.  The loop in question goes from 1.65s -> 0.0097s, which isn't bad. All of
these times are a debug build.

This adds a dependency on DominatorTree analysis that was not there before, but
we always had dominatortree available anyway, because LICM requires both loop
simplify and DT, so this doesn't add any extra analysis in practice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12362 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 22:01:26 +00:00
Chris Lattner
cc7c4acffa Fix a tiny bug that caused an incorrect assertion failure poolallocating 
boxed-sim.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12358 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 01:14:23 +00:00
Chris Lattner
5634b9f5e7 It helps if I save the file. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12357 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 00:24:52 +00:00
Chris Lattner
317201d773 Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to 
Intrinsic::va*.  This avoid conflicting with macros in the stdlib.h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12356 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 00:24:00 +00:00
Chris Lattner
bfe492b5c2 Implement sub.ll:test14 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12355 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-13 00:11:49 +00:00
Chris Lattner
9c2906744a Implement InstCombine/sub.ll:test12 & test13 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12353 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 23:53:13 +00:00
Chris Lattner
7a82ba0510 Fix a couple of minor problems. Because PHI nodes can use themselves, this 
could cause infinite loops.  Also, getUnderlyingObject can return null


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12351 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 23:12:55 +00:00
Chris Lattner
04b7593546 Implement mod/ref analysis for a trivial case where locals don't escape. 
This comes up when you have a local array on the stack and you never pass
the address of elements around.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12349 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 22:39:00 +00:00
Brian Gaeke
215fb76865 Make -print-machineinstrs show us the code both before and after reg. alloc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12344 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 21:19:08 +00:00
Alkis Evlogimenos
a3f66842b2 Add support for a wider range of CMOV instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12336 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 17:59:56 +00:00
Misha Brukman
85f5e11c06 Simplify code to process CallSites (thanks to Chris). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12334 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 16:20:49 +00:00
Misha Brukman
4230f40add Keep transitively-required passes alive for queries to work after the initial 
user pass is destroyed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12332 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 06:16:28 +00:00
Misha Brukman
bc1dbe95b8 Evaluate ModRef information in addition to regular ol' pointer analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12331 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 06:15:08 +00:00
Misha Brukman
a975a9ab80 Implement getModRefInfo() for DSA to calculate whether a function modifies or 
references a pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12330 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 06:14:22 +00:00
Chris Lattner
230c1a7222 Add support for checking the select instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12325 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:54:31 +00:00
Chris Lattner
b4f4880eba Know the opcode name of the select instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12324 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:54:20 +00:00
Chris Lattner
08a45cc2ff Add support for select constant expressions. Use reserve a bit more to avoid 
memory wasteage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12323 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:54:04 +00:00
Chris Lattner
647f82be07 Add new function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12322 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:53:41 +00:00
Chris Lattner
e97148628f Teach the constant folder how to do select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12321 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:53:32 +00:00
Chris Lattner
cfdd148972 Print select instructions correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12320 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:53:14 +00:00
Chris Lattner
17fd273512 Add constant folding wrapper support for select instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12319 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:53:03 +00:00
Chris Lattner
6e32372fcd Add sccp support for select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12318 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:52:44 +00:00
Chris Lattner
3d69f46d64 Add trivial optimizations for select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12317 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:52:32 +00:00
Chris Lattner
9f24a077bd ADd support for select instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12316 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:52:14 +00:00
Chris Lattner
46b787e986 Write select instructions to bytecode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12315 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:52:01 +00:00
Chris Lattner
e3ac22a204 Read select instrs from bytecode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12314 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:51:49 +00:00
Chris Lattner
76f0ff394d Allow parsing select instruction and constant expr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12313 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 05:51:36 +00:00
Misha Brukman
56c0fa69a3 Make code more readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12305 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-12 00:58:41 +00:00
Misha Brukman
ec85af16a0 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12298 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 23:53:51 +00:00
Misha Brukman
b8bda13140 Move implementations of functions here, which avoids #including <cstdlib> in the 
header file and all those who #include it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12297 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 23:52:43 +00:00
Brian Gaeke
c760d647c6 Get rid of the abort in PhyRegAlloc::finishSavingState(). 
Make an explicit call to it from runOnFunction() if we know we're supposed to
write into the global. This is lame (esp. the const_cast), but it solves
the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12291 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 19:46:30 +00:00
Brian Gaeke
c46f8a4f42 Give pass a name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12290 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 19:23:15 +00:00
Misha Brukman
db760d00c3 Fix compilation on Sparc: assert(0) => abort() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12289 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 19:08:24 +00:00
Brian Gaeke
cf68bd5fc1 In PhyRegAlloc::saveState(), dump Arguments' saved-state, and try to 
make the output more compact.

Divorce state-saving from the doFinalization method; for some reason it's not
getting called when I want it to, at Reoptimizer time. Put the guts in
PhyRegAlloc::finishSavingState(). Put an abort() in it so that I can be really
really sure that it's getting called.

Update comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12286 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 06:45:52 +00:00
Brian Gaeke
36061dab06 Remove ghostly directory from the build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12285 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-11 04:42:41 +00:00
Brian Gaeke
d1b3679214 Move all the SaveState options and stuff inton one spot at the top of the file. 
De-constify SaveStateToModule; we have to set both it and SaveRegAllocState
explicitly in the reoptimizer.
Make SaveRegAllocState an 'external location' option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12278 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-10 22:21:03 +00:00
Brian Gaeke
14068d9f97 Only call verifySavedState if SaveRegAllocState is set AND debugging flag is on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12277 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-10 22:01:59 +00:00
Chris Lattner
c6b0c4b9e2 Fix PR284: [indvars] Induction variable analysis violates LLVM invariants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12275 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-10 21:42:19 +00:00
Brian Gaeke
d0f3c5e8b1 My fix for PR274 broke the build on Darwin/PPC. As I'm fairly certain this 
bug only affects Linux systems that use GLIBC, I'm going to put ifdefs around
the array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12269 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-10 17:38:28 +00:00
Chris Lattner
85fb1be62f implement new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12264 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 19:37:06 +00:00
Alkis Evlogimenos
6a367f33f3 Spill explicit physical register defs as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12260 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 08:35:13 +00:00
Alkis Evlogimenos
519f4e76b7 Check if printing of implicit uses is required for all types of shift 
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12258 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 06:10:15 +00:00
Brian Gaeke
00f0a29e1c Address PR274 - '[JIT] Programs cannot resolve the fstat function' 
by trying to get the compiler to generate an undefined reference for it
and related functions which live in libc_nonshared.a on Linux.

Linkers... sigh.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12256 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 05:22:10 +00:00
Brian Gaeke
cf47198a49 Hmm, who left this sitting around in my tree 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12255 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 04:49:13 +00:00
Alkis Evlogimenos
cc2a2a530f Differentiate between extended precision floats (80-bit) and double precision floats (64-bit) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12254 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 03:37:54 +00:00
Alkis Evlogimenos
0309066f6c Use newly added API to emit bytes for instructions that gas misassembles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12253 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 03:35:34 +00:00
Alkis Evlogimenos
39c2005b70 Add emitInstruction() API so that we can get the bytes of a simple instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12252 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 03:34:53 +00:00
Alkis Evlogimenos
f6e8156008 Constify things a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12251 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-09 03:30:12 +00:00
Brian Gaeke
8b16a16918 Change PhyRegAlloc::saveStateForValue()'s arg type to deal with 
AllocInfo.Instruction becoming an int.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12247 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 23:22:03 +00:00
Brian Gaeke
54a76b8808 Save argument list alloc state by recording it as the operands of Instruction 
#-1. Other minor changes to deal with AllocInfo.Instruction becoming an int.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12246 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 23:22:02 +00:00
Brian Gaeke
757ccd5149 Make AllocInfo's Instruction an int, so that we can overload it for arguments. 
(Instruction #-1's operands = argument list).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12245 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 23:22:01 +00:00
Chris Lattner
96ab5caf2d Switch to using edge profiling information as the basic source of profile info 
from using basic block counts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12242 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 22:04:08 +00:00
Chris Lattner
62e84f376b Refactor implementations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12240 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 21:30:35 +00:00
Chris Lattner
6ba8972919 Import the trace class from the reoptimizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12236 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 20:57:27 +00:00
Chris Lattner
dbbbfef165 If we have edge counts, we can produce block counts. I've verified that 
using an edge profile to produce block counts gives the exact same numbers
as using a block count directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12232 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 20:03:52 +00:00
Chris Lattner
9f717ef279 Adjust to new interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12231 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:51:45 +00:00
Chris Lattner
01945c1739 Add initial support for reading edge counts. This will be improved to enable 
translation of edge counts into block/function counts when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12229 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:20:18 +00:00
Chris Lattner
b2f12a2c38 Initial support for edge profiling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12225 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 17:54:34 +00:00
Chris Lattner
467dd2ec61 Split utility functions out of BlockProfiling.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12224 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 17:06:13 +00:00
Chris Lattner
c51733c7b5 finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12221 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 16:45:53 +00:00
Chris Lattner
63a225050f Insert functions into the module promptly, not lazily. This fixes a bug 
I introduced last night.  Note to self: test the *correct* tree...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12220 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 16:14:19 +00:00
Chris Lattner
802b5ab844 Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12218 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:17:35 +00:00
Chris Lattner
2c56b55cf0 Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12216 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:16:10 +00:00
Chris Lattner
2296ec0ce9 Eliminate nightmarish API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12214 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:11:10 +00:00
Chris Lattner
bc2075977c Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12212 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:09:57 +00:00
Chris Lattner
d84d3501c6 Fix a bug handling globals that are constants, but are still external 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12208 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 03:52:24 +00:00
Chris Lattner
9b3c702614 Avoid allocating special registers a bit more robustly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12207 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 03:48:07 +00:00
Chris Lattner
7dee5daf85 Implement folding explicit load instructions into binary operations. For a 
testcase like this:

int %test(int* %P, int %A) {
        %Pv = load int* %P
        %B = add int %A, %Pv
        ret int %B
}

We now generate:
test:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP + 8]
        add %EAX, DWORD PTR [%ECX]
        ret

Instead of:
test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EAX, DWORD PTR [%EAX]
        add %EAX, %ECX
        ret

... saving one instruction, and often a register.  Note that there are a lot
of other instructions that could use this, but they aren't handled.  I'm not
really interested in adding them, but mul/div and all of the FP instructions
could be supported as well if someone wanted to add them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12204 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:58:35 +00:00
Chris Lattner
721d2d4a6e Rearrange and refactor some code. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12203 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:18:36 +00:00
Chris Lattner
9440db8866 Implement ArgumentPromotion/aggregate-promote.ll 
This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference.  This can
enable a LOT of subsequent optimizations in the caller function.

It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference.  When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.

This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well.  For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times.  this is amazingly good considering that
we are using 'basicaa' so far.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12202 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:04:36 +00:00
Chris Lattner
86a734bd40 Implement: ArgumentPromotion/chained.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12200 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:52:53 +00:00
Chris Lattner
7db5a6df78 Fix another minor bug, exposed by perlbmk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12198 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:43:27 +00:00
Chris Lattner
c76d80342e Since 'load null' is undefined, we can make it do whatever we want. Returning 
a zero value is the most likely way to cause further simplification, so we do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12197 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:16:24 +00:00
Chris Lattner
7e6f5090af Fix a minor bug and turn debug output into, well, debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12195 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:54:50 +00:00
Chris Lattner
ed570a7dca New LLVM pass: argument promotion. This version only handles simple scalar 
variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12193 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:29:54 +00:00
Alkis Evlogimenos
13d362f310 Add memory operand version of conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12190 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 03:19:11 +00:00
Alkis Evlogimenos
5ae00066c6 As I wrote in the docs, simple is the default spiller :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12189 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
499b2bad27 Add simple spiller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12188 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 22:38:29 +00:00
Brian Gaeke
08f64c3321 Support return values of basic integer types. 
Emit RETL instruction to return instead of funny JMPL.
Fix indentation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12186 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:32:28 +00:00
Brian Gaeke
a8056fabeb Sort stanzas into Sparc V8 book page number order. 
Add RET, RETL.  Rename SAVE, RESTORE & JMPL for consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12185 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:32:13 +00:00
Brian Gaeke
bda4a3c61a Hack it so we do not try to allocate values to G0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12184 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:31:32 +00:00
Brian Gaeke
d69b3c58d3 Make prolog align stack properly. Make epilog not touch any registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12183 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:31:21 +00:00
Brian Gaeke
a8b00cafc4 Emit register names in lowercase, as required by the assembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12182 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:30:21 +00:00
Brian Gaeke
a98e051417 Teach getRegClassForType where to find FP registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12180 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 03:54:13 +00:00
Chris Lattner
deb8712b49 Fix a minor bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12169 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-05 22:04:07 +00:00
Misha Brukman
a5f2905c71 Unbreak the build on Sparc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12161 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-05 20:04:40 +00:00
Brian Gaeke
62aa28aef3 Asm output is looking a lot better; not correct for all operands yet though. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-05 08:39:09 +00:00
Chris Lattner
4ab483c6ad Fix a bug in a previous checkin that broke 175.vpr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12128 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 21:36:57 +00:00
Chris Lattner
3aeb40cadb Add support for strto* and v*printf 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12127 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 21:03:54 +00:00
Chris Lattner
6b3e3ccf73 Add non-crappy support for varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12126 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 20:33:47 +00:00
Chris Lattner
e6e93ccd0c Implement a FIXME, improving the efficiency of DSA on povray. 
This reduces CBU time from 145s -> 122s (debug build), reduces # allocated nodes
from 129420 to 116477.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12125 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 19:47:04 +00:00
Brian Gaeke
7a3ae1fbad Support -print-machineinstrs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 19:22:16 +00:00
Chris Lattner
da5c5a5b95 Speed up the cbu pass from taking somewhere near the age of the universe to about 90s on povray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12123 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 19:16:35 +00:00
Brian Gaeke
323819e4e1 make -print-machineinstrs work for both SparcV9 and X86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12122 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 19:16:23 +00:00
Alkis Evlogimenos
ce1e500e2f Add assertion for scale verification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12120 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 18:05:02 +00:00
Alkis Evlogimenos
5f65adda50 Hide variable from other functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12118 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 17:50:44 +00:00
Chris Lattner
f590ced5c5 Fix BU datastructures with povray! 
The problem was that we were merging a field of a node with a value that was
deleted.  Thanks to bugpoint for reducing povray to a nice small 3 function
example.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12116 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 17:06:53 +00:00
Chris Lattner
16437ff705 Minor changes, remove some debugging code that got checked in somehow. 
Make sure to scope the NodeMap passed into cloneInto so that it doesn't point
to nodes that are deleted.  Add some FIXME's for future performance enhancements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12115 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 17:05:28 +00:00
Brian Gaeke
4acfd039f9 Asm printer support, based on x86 - only prints mnemonics for now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12113 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 06:00:41 +00:00
Brian Gaeke
da69e7d9b3 Double-FP pseudo-registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12112 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 05:15:03 +00:00
Brian Gaeke
775158d62a Subtract instructions; minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12111 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 04:37:45 +00:00
Brian Gaeke
e7173b7e8e Floating point regs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12110 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 04:37:22 +00:00
Chris Lattner
2f3469013e Only clone nodes that are needed in the caller, don't clone ALL aux calls. This improves 
povray from having ~600K nodes and 300K call nodes to 65K nodes and 25K call nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 03:57:53 +00:00
Brian Gaeke
e806173ab6 Simple copyConstantToReg support, SETHIi and ORri 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12107 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-04 00:56:25 +00:00
Brian Gaeke
bc1d27aa6e Support add - note, still missing important copyConstantToRegister stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12106 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 23:03:14 +00:00
Chris Lattner
76a9eb3e40 Fix a minor bug handling incomplete programs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12105 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 23:00:19 +00:00
Chris Lattner
c4ebdcea7a Fix a DSA bug that caused DSA to generate incredibly huge graphs and take forever to 
do it on povray.  The problem is that we were not copying globals from callees to
callers unless the existed in both graphs.  We should have copied them in the case
where the global pointed to a node that was copied as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12104 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 22:01:09 +00:00
Chris Lattner
2c7725abb4 Deinline methods, add fast exit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12102 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 20:55:27 +00:00
Brian Gaeke
c54839573c Make MachineOperand's value named 'contents'. Make really, really sure 
it is always completely initialized and copied.
Also, fix up many comments and asserts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12100 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 19:07:27 +00:00
Chris Lattner
b1aaeee48a Fix a node mapping problem that was causing the pool allocator to locally allocate 
nodes that were globally live, thus breaking programs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12094 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 05:34:31 +00:00
Chris Lattner
b06f103d0c SPECIFY a target data to initialize the CBE target with. Until now we have 
been using the default target data layout object to lower malloc instructions,
causing us to allocate more memory than we needed!  This could improve the
performance of the CBE generated code substantially!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12088 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 02:14:15 +00:00
Chris Lattner
2bed9ecc4b Add a new constructor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 02:12:47 +00:00
Chris Lattner
0a94348fb9 Don't emit things like malloc(16*1). Allocation instructions are fixed arity now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12086 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-03 01:40:53 +00:00
Chris Lattner
7252939af0 FINALLY be able to get symbolic type names in the globals graph! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12082 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-02 21:39:43 +00:00
Chris Lattner
a19ba52596 Really, only if reopen 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12080 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-02 20:46:18 +00:00
Misha Brukman
ab5c6003d2 Doxygenify comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12071 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-02 00:22:19 +00:00
Misha Brukman
0256e4bbf9 Implement ExtractCodeRegion() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12070 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-02 00:20:57 +00:00
Misha Brukman
38b8fd1078 Make a note that this is usually used via bugpoint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12068 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-02 00:19:09 +00:00
Misha Brukman
538607fe45 Doxygenify some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12064 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 23:53:11 +00:00
Alkis Evlogimenos
dd420e060a Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12062 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
5f37502bfb Add the long awaited memory operand folding support for linear scan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 20:05:10 +00:00
Misha Brukman
9d0802e7dd * If a badref has a name, print it out for ease of debugging 
* Doxygenify (some) comments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12057 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 19:48:13 +00:00
Chris Lattner
82e9d7224e Correctly add an array marker on a node when appropriate! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12055 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 19:02:54 +00:00
Misha Brukman
b97fce5252 * Add implementation of ExtractBasicBlock() 
* Add comments to ExtractLoop()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12053 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 18:28:34 +00:00
Chris Lattner
ec726a1a6e Add this back, as its absence introduces assertions, and it seems to work now 
that Instructions are annotable again


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12045 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 15:28:27 +00:00
Tanya Lattner
f048bfd97d fix bug in previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12044 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 15:05:17 +00:00
Brian Gaeke
05b15fb075 TargetCacheInfo has been removed; its only uses were to propagate a constant 
(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12043 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 06:43:29 +00:00
Tanya Lattner
9b3cbdbedb Adding new Modulo Scheduling graph files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12031 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 02:50:57 +00:00
Tanya Lattner
d14b83733e Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12030 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 02:50:01 +00:00
Chris Lattner
2d6a6aa137 Expand on my note-to-self 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12029 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 02:44:44 +00:00
Chris Lattner
21585221b6 Handle passing constant integers to functions much more efficiently. Instead 
of generating this code:

        mov %EAX, 4
        mov DWORD PTR [%ESP], %EAX
        mov %AX, 123
        movsx %EAX, %AX
        mov DWORD PTR [%ESP + 4], %EAX
        call Y

we now generate:
        mov DWORD PTR [%ESP], 4
        mov DWORD PTR [%ESP + 4], 123
        call Y

Which hurts the eyes less.  :)

Considering that register pressure around call sites is already high (with all
of the callee clobber registers n stuff), this may help a lot.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12028 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 02:42:43 +00:00
Chris Lattner
ce6096f49b Fix a minor code-quality issue. When passing 8 and 16-bit integer constants 
to function calls, we would emit dead code, like this:

int Y(int, short, double);
int X() {
  Y(4, 123, 4);
}

--- Old
X:
        sub %ESP, 20
        mov %EAX, 4
        mov DWORD PTR [%ESP], %EAX
***     mov %AX, 123
        mov %AX, 123
        movsx %EAX, %AX
        mov DWORD PTR [%ESP + 4], %EAX
        fld QWORD PTR [.CPIX_0]
        fstp QWORD PTR [%ESP + 8]
        call Y
        mov %EAX, 0
        # IMPLICIT_USE %EAX %ESP
        add %ESP, 20
        ret

Now we emit:
X:
        sub %ESP, 20
        mov %EAX, 4
        mov DWORD PTR [%ESP], %EAX
        mov %AX, 123
        movsx %EAX, %AX
        mov DWORD PTR [%ESP + 4], %EAX
        fld QWORD PTR [.CPIX_0]
        fstp QWORD PTR [%ESP + 8]
        call Y
        mov %EAX, 0
        # IMPLICIT_USE %EAX %ESP
        add %ESP, 20
        ret

Next up, eliminate the mov AX and movsx entirely!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12026 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-01 02:34:08 +00:00