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Author SHA1 Message Date
Jim Grosbach
f49be7c96f Make sure the LR gets pushed in functions that use vaargs. This fixes 
400.perlbench for the nightly tests.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 20:01:30 +00:00
Jim Grosbach
004453e85e comment why we use custom epilogue for t1 functions using vaargs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 19:59:47 +00:00
Dale Johannesen
2cd9ffef6e Fix another place where DEBUG_VALUE affected codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98181 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 19:57:56 +00:00
Dan Gohman
bbf81d8811 Add a DominatorTree argument to isLCSSA so that it doesn't have to 
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 19:38:49 +00:00
Dan Gohman
0891d752a6 Constant-fold GEP-of-GEP into a single GEP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98178 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 19:31:51 +00:00
Dan Gohman
a77338476f Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98173 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 19:00:54 +00:00
Johnny Chen
dd0f3cf189 Factored out the disassembly printing of CPS option, MSR mask, and Negative Zero 
operands into their own PrintMethod, in order not to pollute the printOperand()
impl with disassembly only Imm modifiers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98172 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 18:59:38 +00:00
Tobias Grosser
cbb524e2a9 Fix make check with cmake/lit 
PR6540: Set the newly introduced variables ENABLE_SHARED and
SHLIBPATH_VAR in lit.site.cfg not only in the autoconf build, but also
in a cmake one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 18:41:59 +00:00
Richard Osborne
72926c264a The backend now makes a reasonable job of targeting lmul / macc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98169 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 18:14:47 +00:00
Richard Osborne
850f1cd3c0 Handle MVT::i64 type in DAG combine for ISD::ADD. Fold 64 bit 
expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 18:12:27 +00:00
Daniel Dunbar
0965200ac2 Remove unneeded includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 17:56:05 +00:00
Bob Wilson
c81f0af6b7 Testcase for pr6552. I changed the code to use "ip" instead of "fp" because 
the "fp" register name is not valid on Darwin, and the "ip" register name was
broken for all ARM targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98166 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 17:54:11 +00:00
Richard Osborne
ea670df852 Fix checking of intermediates having one use in isADDADDMUL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 17:16:29 +00:00
Richard Osborne
886d861355 Extract recognition of patterns such as add(add(mul(x,y),a),b) 
into a seperate function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98162 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 17:10:35 +00:00
Richard Osborne
25ab35e8c7 Fix thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 16:27:11 +00:00
Richard Osborne
2dacd1e987 Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate 
results are unused elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 16:19:31 +00:00
Benjamin Kramer
48ee0bbb72 Remove duplicated code. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 16:04:20 +00:00
Dale Johannesen
a2f767b1a7 Fix a bug in DEBUG_VALUE handling Devang ran into. 
I'll get this loop right yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 15:06:26 +00:00
Richard Osborne
a2cc0613d0 Prefer LMUL to MACCU as LMUL has no tied operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 13:27:10 +00:00
Richard Osborne
a7e78402b8 Custom lower (S|U)MUL_LOHI -> MACC(S|U) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 13:20:07 +00:00
Richard Osborne
34f9d88221 Fix indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 11:42:05 +00:00
Richard Osborne
ebc64cf780 Lower add (mul a, b), c into MACCU / MACCS nodes which translate 
directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 11:41:08 +00:00
Richard Osborne
1250ac8a09 Convert test to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 11:24:03 +00:00
Chris Lattner
09d53fecfc move three lowering hooks from MAI to TLOF and make one of them 
semantic instead of syntactic.  This completes MCization of
darwin/x86[-64]!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 07:20:42 +00:00
Evan Cheng
3a624227c0 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 07:07:55 +00:00
Evan Cheng
e025908cf4 Unbreak test on Linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 07:07:45 +00:00
Dale Johannesen
c5cf227f3d This survived a bootstrap, so let's try 98104 again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98137 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 05:45:47 +00:00
Evan Cheng
fac4f1f181 Enable machine cse pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 03:07:41 +00:00
Chris Lattner
974c0fb404 mcize the rest of EH emission, only one more directive missing 
for darwin/x86 to be completely mcized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:48:06 +00:00
Chris Lattner
49f618a1e4 add missing filename! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98125 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:29:31 +00:00
Chris Lattner
98cdab53c3 set the temporary bit on MCSymbols correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:25:11 +00:00
Dan Gohman
2d0a91cd6c Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:18:48 +00:00
Evan Cheng
2938a00f29 Add a couple more heuristics to neuter machine cse some more. 
1. Be careful with cse "cheap" expressions. e.g. constant materialization. Only cse them when the common expression is local or in a direct predecessor. We don't want cse of cheap instruction causing other expressions to be spilled.
2. Watch out for the case where the expression doesn't itself uses a virtual register. e.g. lea of frame object. If the common expression itself is used by copies (common for passing addresses to function calls), don't perform the cse. Since these expressions do not use a register, it creates a live range but doesn't close any, we want to be very careful with increasing register pressure.

Note these are heuristics so machine cse doesn't make register allocator unhappy. Once we have proper live range splitting and re-materialization support in place, these should be evaluated again.

Now machine cse is almost always a win on llvm nightly tests on x86 and x86_64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:12:03 +00:00
Daniel Dunbar
07a9641ebf MC/Mach-O: Resolve a FIXME; these relocation types are no longer semanticaly different. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 02:10:29 +00:00
Dan Gohman
9f116aa3b1 Clarify the documentation for MachineFunctionPasses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 01:29:39 +00:00
Chris Lattner
00685bb5cf eliminate MCContext::CreateSymbol and CreateTemporarySymbol. 
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98118 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 01:29:27 +00:00
Chris Lattner
d85fc6e0b1 inline away a form of IsPCRelative, eliminating the 
dead IsPCRel argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98117 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 01:17:49 +00:00
Chris Lattner
188a87da79 add some fixme's for MCizing. EH still has a few things that 
need to be MCized, but the last debug info thing are LEB and
cygwin specific (which the MC api doesn't support yet) and
one specific form of EmitReference which I'll tackle next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98116 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 01:04:13 +00:00
Daniel Dunbar
a015c1c876 MC/Mach-O: Use the SECTDIFF relocation type for (A - B + constant) where A is external. 
- I'm not sure why, but this is what 'as' does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98115 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 00:58:25 +00:00
Jim Grosbach
7c617b5e53 Clear up the last (famous last words) frame index value reuse issues for Thumb1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 00:13:42 +00:00
Dale Johannesen
7dda453410 Speculatively revert 98104; could be what's causing crashes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 00:11:34 +00:00
Chris Lattner
90e4af7b9d mcize uses of PrintRelDirective and eliminate it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-10 00:09:21 +00:00
Chris Lattner
4aeaca4053 inline the bool form of PrintRelDirective away, leaving just the unsigned form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:54:52 +00:00
Chris Lattner
233f52be36 eliminate EOL, adding all comments with the OutStreamer.AddComment 
method.  With this, comments should end up on the same lines as the .byte
directives (for example) and we now get no output with:

$ llc CodeGen/X86/2009-02-12-DebugInfoVLA.ll -o - -filetype=null -asm-verbose

woot.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:52:58 +00:00
Dale Johannesen
7f876967c0 Ever more complicated DEBUG_VALUE fixes for branch folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:52:37 +00:00
Dan Gohman
4ecbca558f Avoid analyzing instructions in blocks not reachable from the entry block. 
They are lots of trouble, and they don't matter. This fixes PR6559.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98103 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:46:50 +00:00
Chris Lattner
0d9d70f013 eliminate a bunch of \n's that are being printed to O. Next up is to kill 
off "EOL".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:38:23 +00:00
Chris Lattner
fcdae492ea convert the non-"ispcrel" case of EmitReference to MC, 
significant debug info testcases are now all going through
MCStreamer, though they print a lot of extraneous newlines to "O".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98101 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:19:15 +00:00
Chris Lattner
2e5dd9b741 make the NullStreamer set the section on a label when emitted so that isDefined() works. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:12:18 +00:00
Jakob Stoklund Olesen
f7477470d3 Try to keep the cached inliner costs around for a bit longer for big functions. 
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98099 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 23:02:17 +00:00