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08bde1870a
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5954 Commits

Author SHA1 Message Date
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