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Author SHA1 Message Date
Dan Gohman
4d8414f420 Teach SCEVExpander's visitAddRecExpr to reuse an existing canonical 
induction variable when the addrec to be expanded does not require
a wider type. This eliminates the need for IndVarSimplify to
micro-manage SCEV expansions, because SCEVExpander now
automatically expands them in the form that IndVarSimplify considers
to be canonical. (LSR still micro-manages its SCEV expansions,
because it's optimizing for the target, rather than for
other optimizations.)

Also, this uses the new getAnyExtendExpr, which has more clever
expression simplification logic than the IndVarSimplify code it
replaces, and this cleans up some ugly expansions in code such as
the included masked-iv.ll testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73294 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-13 16:25:49 +00:00
Dan Gohman
2ce84c8d47 Add a ScalarEvolution::getAnyExtendExpr utility function for performing 
extension with unspecified bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-13 15:56:47 +00:00
Evan Cheng
e7d6df7353 Add a ARM specific pre-allocation pass that re-schedule loads / stores from 
consecutive addresses togther. This makes it easier for the post-allocation pass
to form ldm / stm.

This is step 1. We are still missing a lot of ldm / stm opportunities because
of register allocation are not done in the desired order. More enhancements
coming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73291 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-13 09:12:55 +00:00
Devang Patel
daf9e02893 llvm.dbg.region.end() intrinsic is not required to be in _last_ basic block in a function. If that happens then any basic block that follows (lexically) the block with regin.end will not have scope info available. LexicalScopeStack relies on processing basic block in CFG order, but this processing order is not guaranteed. Things get complicated when the optimizer gets a chance to optimizer IR with dbg intrinsics. 
Apply defensive patch to preserve at least one lexical scope till the end of function.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-13 02:16:18 +00:00
Bruno Cardoso Lopes
7e0b551e2a Type change cleanup on JCE and MCE. Patch by Aaron Gray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73271 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 23:51:56 +00:00
Dan Gohman
0de1951a33 Adjust this test's regex strings so that they work regardless 
of the target's pointer size. This avoids the need for -m32 on
the llvm-gcc command-line, which some targets may not support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73270 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 23:31:14 +00:00
Dan Gohman
f53e6b5c13 Add -m32 to llvm-gcc commands, so that this test behaves as expected 
on systems which default to a 64-bit target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73265 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 23:02:02 +00:00
Owen Anderson
a21f31bca5 Improve style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73258 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 22:07:19 +00:00
Owen Anderson
5b6139a4d1 This is supposed to be a preorder numbering of the dominator tree, not the CFG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73257 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 21:50:22 +00:00
Owen Anderson
fdf72c6607 Now with less iterator invalidation, and other forms of crashing! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73256 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 21:41:29 +00:00
Evan Cheng
4a274e573d If killed register is defined by implicit_def, do not clear it since it's live range may overlap another def of same register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 21:34:26 +00:00
Chris Lattner
69074a51f9 second half of fix for PR4366: don't zap store to null of 
non-default addrspaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73253 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 21:01:07 +00:00
Evan Cheng
cd799b99cb Mark some pattern-less instructions as neverHasSideEffects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 20:46:18 +00:00
Devang Patel
5d96fdac41 Document noredzone and noimplicitfloat function attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73246 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 19:45:19 +00:00
Devang Patel
9217f793bf Clear AbstractInstanceRootMap at the end of the function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73244 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 19:24:05 +00:00
Dan Gohman
e54aba5fa9 Don't do (x - (y - z)) --> (x + (z - y)) on floating-point types, because 
it may round differently. This fixes PR4374.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73243 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 19:23:25 +00:00
Dan Gohman
194ae785e1 Give Instruction::isSameOperationAs a corresponding comment to note 
the relationship with MergeFunctions.cpp's isEquivalentOperation,
and make a trivial code reordering so that the two functions are
easier to compare.

Fix the name of Instruction::isSameOperationAs in MergeFunction.cpp's
isEquivalentOperation's comment, and fix a nearby 80-column violation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73241 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 19:03:05 +00:00
Dale Johannesen
5d0da6be21 Testcase for llvm-gcc patch 73238. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73239 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 18:41:53 +00:00
Bill Wendling
e71bd5aead Waste time fixing something that should have been fixed before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 18:02:40 +00:00
Nick Lewycky
93531e4986 Keep callers of a weak function calling it, instead of the non-weak equivalent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73235 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 17:16:48 +00:00
Arnold Schwaighofer
bbd8c33ee6 Fix Bug 4278: X86-64 with -tailcallopt calling convention 
out of sync with regular cc.

The only difference between the tail call cc and the normal
cc was that one parameter register - R9 - was reserved for
calling functions through a function pointer. After time the
tail call cc has gotten out of sync with the regular cc. 

We can use R11 which is also caller saved but not used as
parameter register for potential function pointers and
remove the special tail call cc on x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 16:26:57 +00:00
Nick Lewycky
b3c36c9c9a Don't forget to match the calling convention when producing a thunk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73231 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 16:04:00 +00:00
Nick Lewycky
8728d7a3ea Given two identical weak functions, produce one internal function and two weak 
thunks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73230 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 15:56:56 +00:00
Duncan Sands
7e0842fb21 Tweak GenLibDeps.pl so it works on solaris. 
Patch by Edward O'Callaghan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73228 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 14:23:42 +00:00
Nicolas Geoffray
e91208c963 After obtaining the lock, look if the function has been codegen'd by 
another thread.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 14:11:08 +00:00
Nick Lewycky
f343b69f47 This test is wrong. If you have two weak functions F and G you can't make 
either one call the other since either one can be replaced at link time, and
they need to be independent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73225 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 13:24:41 +00:00
Duncan Sands
45db29c6f1 Add clang support to the nightly test script. 
Patch by Edward O'Callaghan.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73224 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 13:02:52 +00:00
Duncan Sands
ca6829aebb Credits for Edward O'Callaghan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73223 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 12:52:24 +00:00
Nick Lewycky
287de607dc Add an "are types equivalent" operation that ignores the types that a pointer 
points to while analyzing all other fields.

Use FoldingSetNodeID to produce a good hash. This dramatically decreases run
times.

Emit thunks. This means that it can look at all functions regardless of what
the linkage is or if the address is taken, but unfortunately some small
functions can be even shorter than the thunk because our backend doesn't yet
realize it can just turn these into jumps. This means that this pass will
pessimize code on average.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73222 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 08:04:51 +00:00
Nick Lewycky
c55c27fa16 Fix regular expression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73221 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 05:39:02 +00:00
Nick Lewycky
f7e498138f Don't remove aggregate-typed module level constants before encoding functions 
since functions may contain aggregate constants too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73220 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 05:20:12 +00:00
Nick Lewycky
084f7bf8a7 In an XFAIL line, treat "XFAIL: foo*bar" as a regular expression to be matched 
against the target triple, instead of equivalent to "XFAIL: *".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73219 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 05:18:32 +00:00
Oscar Fuentes
af0f65fe6a CMake: New variable LLVM_LIBDIR_SUFFIX. 
Patch by Ingmar Vanhassel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73216 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 02:49:53 +00:00
Misha Brukman
00c1073012 Update script to tell the user where to get the CodeSourcery crosstool, if it's 
not found.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73213 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 02:04:47 +00:00
Misha Brukman
cb6f9c8aae Added two scripts to aid with building Linux/x86 -> Linux/ARM crosstools, using 
CodeSourcery's provided GCC-based crosstools, from which we use binutils.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-12 01:55:57 +00:00
Nick Lewycky
0b389b54c9 XFAIL this on PPC Linux. This keeps showing up in the buildbot and isn't easy to fix, and I'd like it to stop masking 
real failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 23:43:02 +00:00
Eli Friedman
7161cb1dad Misc x86 README updates: remove a couple of already-fixed issues, 
add a few suggestions from looking at some assembly code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 23:07:04 +00:00
Bruno Cardoso Lopes
d00d4159d4 Use forward declarations and move TargetELFWriterInfo impl to a new file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73209 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 22:13:00 +00:00
Dale Johannesen
7512beb751 Test for rev 73205 (PR 4349) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73206 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 20:48:09 +00:00
Bill Wendling
e4261471be Alphabetize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73203 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 20:13:35 +00:00
Bill Wendling
5e0644c73e Remove unused parameter warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73202 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 20:10:02 +00:00
Bruno Cardoso Lopes
c997d45ae5 Support for ELF Visibility 
Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73201 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 19:16:03 +00:00
Chris Lattner
3590abfda0 Fix 4366: store to null in non-default addr space should not be 
turned into unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73195 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 17:54:56 +00:00
Sanjiv Gupta
6396329d52 Generate libcalls for floating point arithmetic and casting operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 16:50:48 +00:00
Duncan Sands
d6de30ceea Cosmetic changes to parameter attribute verification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73188 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 08:11:03 +00:00
Duncan Sands
861d20aab4 Avoid leaking memory in an error path. Noticed 
by cppcheck.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73187 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 08:09:49 +00:00
Sanjiv Gupta
fa3f80a2b7 More formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73185 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 06:55:48 +00:00
Sanjiv Gupta
b65d1f23ca Fixed source comments. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73184 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 06:49:55 +00:00
Oscar Fuentes
cbdbcb12fc CMake: Documented how to cross-compile with CMake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 04:45:08 +00:00
Oscar Fuentes
99b94892f5 CMake: Fixed parallel build problem related to native tblgen when 
cross-compiling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-11 04:16:10 +00:00