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Author SHA1 Message Date
Dan Gohman
17e8078ae1 Add brief doxygen comments for AliasResult enum values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118792 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:37:38 +00:00
Dan Gohman
67a84f1ee6 Include ImmutablePass passes in -debug-pass=Arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:32:17 +00:00
Dan Gohman
efb8a9d0c2 Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118789 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:24:49 +00:00
Dan Gohman
5aae3dcb53 Make Sink tbaa-aware. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118788 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:21:47 +00:00
Dan Gohman
2c71f18ff7 It's safe to sink some instructions which are not safe to speculatively 
execute. Make Sink's predicate more precise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118787 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 16:20:28 +00:00
NAKAMURA Takumi
e7ae70b137 CMake: Add the new option "LLVM_LIT_ARGS". 
Defaults:
if (MSVC OR XCODE): "-sv --no-progress-bar"
else: "-sv"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118776 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 04:09:35 +00:00
Rafael Espindola
3f2d13c98e Remove some explicit arguments to getELFSection. This is 
a leftover from the removal of isExplicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 03:40:25 +00:00
Jim Grosbach
928f3325a7 Encoding for ARM LDRSH and LDRSH_PRE. Cannonicalize operand names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:55:59 +00:00
Jim Grosbach
d507d1f616 Fix encoding of Ra register for ARM smla* instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:27:41 +00:00
Owen Anderson
336b8b4244 Add support for specifying a PostEncoderMethod, which can perform post-processing after the automated encoding of an instruction. 
Not yet used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118759 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:19:24 +00:00
Jim Grosbach
570a922691 ARM STRH encoding information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:09:40 +00:00
Dan Gohman
f00833c401 Add a testcase which demonstrates alias analysis pass precedence. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 01:03:30 +00:00
Jakob Stoklund Olesen
a05f60b241 Delete SplittingSpiller. It was not being used by anyone, and it is being 
superceded by SplitKit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:52:44 +00:00
Dan Gohman
8a66a202f6 It's not necessary to clear out the Size and TBAATag at each of 
these points.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:42:22 +00:00
Dan Gohman
ec9b4ac914 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
1e8e72d72a Insert two blank SlotIndexes between basic blocks instead of just one. 
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.

We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.

That requires two separate indexes between blocks. One for live-outs and one for
live-ins.

With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:19:20 +00:00
Devang Patel
40d438e20a Document debuginfo-tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-11 00:13:39 +00:00
Jakob Stoklund Olesen
01f98abe3e Delete unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118743 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:56:02 +00:00
Jakob Stoklund Olesen
b5f327b30f No need to add liveness that's already there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:56:00 +00:00
Jakob Stoklund Olesen
e93198af07 Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing 
constant loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:55:56 +00:00
Jim Grosbach
954ffff79b Move LDM predicate operand encoding into base clase. Add STM missing STM 
encoding bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118738 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:44:32 +00:00
Jim Grosbach
5d5eb9e381 ARM LDM encoding for the mode (ia, ib, da, db) operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118736 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:38:36 +00:00
Rafael Espindola
c87a94a942 Factor some code into WriteSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118733 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:36:59 +00:00
Jim Grosbach
c1235e2a4e Fix ARM encoding of non-return LDM instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:18:49 +00:00
Jim Grosbach
866aa394ca Fix ARM encoding of LDM+Return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 23:12:48 +00:00
Dan Gohman
2365f08c7d When clearing a non-local pointer dependency cache entry, clear 
the reverse map too. This fixes seflhost build errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:35:02 +00:00
Rafael Espindola
1d739a010d Update the section index map after we add the medatada sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:34:07 +00:00
Devang Patel
62367045a4 Take care of special characters while creating named MDNode name to hold function specific local variable's info. 
This fixes radar 8653152. I am checking in testcase as a separate check-in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:19:21 +00:00
Rafael Espindola
4beee3d06b Use SectionIndexMap in WriteSymbolTable to make it a little less brittle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 22:16:43 +00:00
Dan Gohman
533c2ad360 Factor out the code for computing an AliasAnalysis::Location 
for a given instruction into a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:35 +00:00
Rafael Espindola
bab2a80525 Factor some code into ComputeIndexMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:51:05 +00:00
Dan Gohman
733c54da1e Fully invalidate cached results when a prior query's size or 
type is insufficient for, or incompatible with, the current query.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:45:11 +00:00
Nate Begeman
bf5be2654e Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build vector with 2 elts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 21:35:41 +00:00
Duncan Sands
bc68d71d2a Reduce the maximum recursion depth, 5 seems pointlessly too much. 
Probably it should just be 1, but compromise with 3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:53:24 +00:00
Dan Gohman
075fb5d68f Enhance GVN to do more precise alias queries for non-local memory 
references. For example, this allows gvn to eliminate the load in
this example:

  void foo(int n, int* p, int *q) {
    p[0] = 0;
    p[1] = 1;
    if (n) {
      *q = p[0];
    }
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:37:15 +00:00
Rafael Espindola
af3d38f70e Change the String<size> methods to take a fragment instead of a buffer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 20:02:59 +00:00
Jakob Stoklund Olesen
cfa7134a9c Basic rematerialization during splitting. 
Whenever splitting wants to insert a copy, it checks if the value can be
rematerialized cheaply instead.

Missing features:
- Delete instructions when all uses have been rematerialized.
- Truncate live ranges to the remaining uses after rematerialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:31:50 +00:00
Andrew Trick
f4baeaf848 RABasic is nearly functionally complete. There are a few remaining 
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:18:47 +00:00
Rafael Espindola
4283f4b81e Use MCSectionELF in places we know we have an ELF section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:05:07 +00:00
Dan Gohman
3355c4e598 Use getValueOperand() and getPointerOperand() on load and store 
instructions instead of hard-coding operand numbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 19:03:33 +00:00
Dan Gohman
e88ccb545d Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite 
their comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:30:00 +00:00
Duncan Sands
a74a58c83b Teach InstructionSimplify how to look through PHI nodes. Since PHI 
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit.  It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:23:01 +00:00
Dan Gohman
b395e4a026 Fix a copy+pasto Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:18:23 +00:00
Dan Gohman
68a6056daf Add a doesAccessArgPointees helper function, and update code to use 
it, and to be consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 18:17:28 +00:00
Jim Grosbach
7c7ddb21c3 Simplify and clean up MC symbol lookup for ARM constant pool values. This fixes 
double quoting of ObjC symbol names in constant pool entries.

rdar://8652107

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:59:10 +00:00
Dan Gohman
432d08cbdb Factor out the code for testing whether a function accesses 
arbitrary memory into a helper function, and adjust some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:34:04 +00:00
Dan Gohman
50bcaece67 Give NonLocalDepResult a NonLocalDepEntry member, replacing 
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 17:15:52 +00:00
Tobias Grosser
a84b567713 Detect if llvm-gcc is built on dragonegg. 
Store the flags needed to disable optimizations and to emit LLVM-IR depending on
the version of llvm-gcc used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118684 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 16:31:34 +00:00
Michael J. Spencer
6c43de46ff Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118683 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:06:00 +00:00
Michael J. Spencer
7aac79bdea System/Path: Update comments to match code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118682 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-10 15:05:50 +00:00