Chris Lattner
5192676aa4
New testcase. This now codegens to:
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max:
mov %EAX, DWORD PTR [%ESP + 4]
mov %ECX, DWORD PTR [%ESP + 8]
cmp %EAX, %ECX
cmovle %EAX, %ECX
ret
Someone should really implement passing arguments through registers for
known-internal functions. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12558 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 22:36:52 +00:00
Chris Lattner
87d3bb5dfa
Implement spill code folding for all of the conditional move instructions
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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
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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
3b68c201c8
New testcase for select instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12552 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 21:21:14 +00:00
Chris Lattner
bc280abd46
Fix bug: Assembler/2004-03-30-UnclosedFunctionCrash.llx
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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
982b2791cf
New testcase that crashes the assembler
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12550 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 20:58:00 +00:00
Chris Lattner
a5cdab7101
Fix some serious bugs in the cmov descriptions, which didn't cause a problem because
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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.
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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
4971b722ff
Oops, actually USE the previously computed value
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12547 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 19:45:39 +00:00
Chris Lattner
5dd784a8ca
Test general value/value selection which we can do now that we use the
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select instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12546 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 19:45:11 +00:00
Chris Lattner
552112f2f8
Now that all the code generators support the select instruction, and the instcombine
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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]
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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
6d0996866c
Add some testcases for select simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12543 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-30 19:36:54 +00:00
Chris Lattner
6f2ab04e91
Fix a fairly major performance problem. If a PHI node had a constant as
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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
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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
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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
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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.
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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
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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
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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
62fe9b59c1
Relax the interface a bit
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12533 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29 20:42:38 +00:00
John Criswell
d179961d40
Merged in RELEASE_12.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12532 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29 20:23:11 +00:00
John Criswell
8130a38321
Merged in RELEASE_12.
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This fixes the zlib linking problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12531 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29 20:22:30 +00:00
Chris Lattner
d25e3ecb3c
Handle -0.0 correctly
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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
c50bbc9613
Add a faq entry
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12529 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-29 19:14:35 +00:00
Chris Lattner
4dcb5401e4
Add a bunch of methods that should have been added a long time ago.
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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
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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
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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.
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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
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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
40bdfe5554
Make sure to get the headers from zlib correctly
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12521 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-26 17:04:53 +00:00
Chris Lattner
4df1b8aa26
X % -1 == X % 1 == 0
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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:
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#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
f6e59410ee
New testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12518 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-25 22:59:06 +00:00
Chris Lattner
698c4a4bbb
Minor efficiency improvement, finegrainify namespacification
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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
a553f62738
Add note about setting up linux systems to directly execute LLVM bytecode files
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Fixes PR303
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12516 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-25 20:38:40 +00:00
Chris Lattner
e151259288
Hrm, we were leaking ~1M of garbage that valgrind never told us about because
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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
6a39aa52f0
Add a dose of reality into the release notes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12510 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-19 19:22:28 +00:00
Chris Lattner
7c881dffc9
Teach the optimizer to delete zero sized alloca's (but not mallocs!)
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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
f3fbddd333
New testcase, the optimizer can delete zero sized allocas
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12506 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-19 06:07:43 +00:00
Chris Lattner
76cddb08cb
Perhaps the last bugfix before the release? HOPEFULLY! :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12505 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-19 04:26:04 +00:00
Chris Lattner
6b835360f1
Fix PR299: [Sparc] Code generator asserts on alloc of zero size type
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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.
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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
d5fc4fcecf
Fix a minor wording bug in the manual
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12496 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18 14:58:55 +00:00
Chris Lattner
43aaf66a39
This is the last remaining bug that I know of in the loop extractor. The loop
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extractor has extracted hundreds of loops from the SPEC benchmarks without crashing
and without misoptimizing the programs.
This testcase could be reduced substantially more by hand, but I don't have time
to work on it right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12495 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18 06:41:59 +00:00
Chris Lattner
85c84e759e
Fix a really nasty bug that was breaking ijpeg in LLC mode. We were incorrectly
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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
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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
a930de523f
New testcase, reduced from 256.bzip2
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12492 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-18 05:55:29 +00:00
Chris Lattner
f6e43bc796
Add statistics to the loop extractor. The loop extractor has successfully
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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
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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