3c9ed76ba5
Temporarily disable tail calls on ARM to work around some linker problems.
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llvm-svn: 111050
2010-08-13 22:43:33 +00:00
15b3c3d0ac
Move the Thumb2 SSAT and USAT optional shift operator out of the
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instruction opcode. This fixes part of PR7792.
llvm-svn: 111047
2010-08-13 21:48:10 +00:00
0c436ab356
Various optimizations. Don't compare two loops' depths
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when they are the same loop. Don't compare two instructions'
loop depths when they are in the same block.
llvm-svn: 111045
2010-08-13 21:24:58 +00:00
d1191ee43c
Implement splitting inside a single block.
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When a live range is contained a single block, we can split it around
instruction clusters. The current approach is very primitive, splitting before
and after the largest gap between uses.
llvm-svn: 111043
2010-08-13 21:18:48 +00:00
081ffcd00b
Fix LSR's ExtractImmediate and ExtractSymbol to avoid calling
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ScalarEvolution::getAddExpr, which can be pretty expensive, when nothing
has changed, which is pretty common.
llvm-svn: 111042
2010-08-13 21:17:19 +00:00
160be2936b
Add comments to some pattern fragments in x86
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llvm-svn: 111041
2010-08-13 20:39:01 +00:00
c0b5c19547
tidy up comments
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llvm-svn: 111040
2010-08-13 20:32:35 +00:00
63c020a210
When testing whether one loop contains another, test this directly
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rather than testing whether the loop contains the other's header.
llvm-svn: 111039
2010-08-13 20:23:25 +00:00
3324b9ec67
Add a const.
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llvm-svn: 111038
2010-08-13 20:17:27 +00:00
cf32f2bde1
When creating a symmetric SCEV with a constant operand, put
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the constant operand on the left, as that's where ScalarEvolution
will end up canonicalizing to.
llvm-svn: 111037
2010-08-13 20:17:14 +00:00
ec0120a123
An add recurrence is loop-invariant in any loop inside of its
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associated loop. This avoids potentially expensive traversals
of the add recurrence's operands.
llvm-svn: 111034
2010-08-13 20:11:39 +00:00
5af43f04dc
tidy up 80 column and whitespace
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llvm-svn: 111033
2010-08-13 20:08:59 +00:00
b990d970f1
Revert r111007.
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Apparently, this is now fixed in Clang.
llvm-svn: 111032
2010-08-13 20:08:53 +00:00
874d74ef75
Implement hasComputableLoopEvolution for Add, Mul, and Trunc operators,
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since they can support trivial implementations. This avoids potentially
expensive traversals of the operands.
llvm-svn: 111031
2010-08-13 20:03:15 +00:00
d3a828ce68
Refactor the code for disassembling Thumb2 saturate instructions along the
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same lines as the change I made for ARM saturate instructions.
llvm-svn: 111029
2010-08-13 19:04:21 +00:00
8d3c89e765
Revert 110491. While not wrong, it was based on a
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misanalysis and is undesirable.
llvm-svn: 111028
2010-08-13 18:43:45 +00:00
081861b6b7
Fix comment to reflect code, and remove an unused argument
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llvm-svn: 111022
2010-08-13 17:50:47 +00:00
1187e3f09b
Improve comment to make explicit why not to touch this could before JIT goes MC
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llvm-svn: 111021
2010-08-13 17:44:10 +00:00
d1f4465df0
tidy up whitespace a bit
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llvm-svn: 111019
2010-08-13 16:55:08 +00:00
1d54a4ea1d
One more XFAIL.
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llvm-svn: 111010
2010-08-13 07:03:56 +00:00
49fd7d3a5f
More XFAILs.
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llvm-svn: 111008
2010-08-13 07:01:55 +00:00
8bdfce97a8
Add a workaround for building with Clang.
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llvm-svn: 111007
2010-08-13 06:02:45 +00:00
143a33758c
Add an XFAIL.
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llvm-svn: 111004
2010-08-13 04:15:45 +00:00
6e5b67ccc4
Revert last patch and r110954 as I meant to.
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llvm-svn: 111001
2010-08-13 02:37:50 +00:00
5e027fe113
Revert r110954 for now, pseudo instructions can't make it through to the JIT.
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llvm-svn: 111000
2010-08-13 02:30:00 +00:00
ee1ef8c402
Remove -fexceptions from llvmc tests.
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llvm-svn: 110999
2010-08-13 02:29:35 +00:00
d2cc5fb971
llvmc: fix two tests, remove XFAILs.
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Tested on Linux and Darwin; please add platform-specific XFAILs/mail me a bug
report if this still fails.
llvm-svn: 110998
2010-08-13 02:29:24 +00:00
3d1027e7a1
Let LiveInterval::addRange extend existing ranges, it will verify that value
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numbers match. The old check could accidentally leave holes in openli.
Also let useIntv add all ranges for the phi-def value inserted by
enterIntvAtEnd. This works as long at the value mapping is established in
enterIntvAtEnd.
llvm-svn: 110995
2010-08-13 01:05:26 +00:00
840b81a19e
Remember to actually update SplitAnalysis statistics now that we have a fancy
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function to do it.
llvm-svn: 110994
2010-08-13 01:05:23 +00:00
2df195eea1
Use getAllOnesValue, saves a copy and looks better.
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llvm-svn: 110991
2010-08-13 00:29:44 +00:00
2a0ca3e937
Reapply this transformation now that it is passing the external test which it previously failed.
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llvm-svn: 110987
2010-08-13 00:17:53 +00:00
60a31c30c3
Move some code from Verifier into SVI::isValidOperands. This allows us to catch bad shufflevector operations when they are created, rather than waiting for someone to notice later on.
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llvm-svn: 110986
2010-08-13 00:16:46 +00:00
7b1bcaafae
Trim #includes.
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llvm-svn: 110983
2010-08-12 23:56:03 +00:00
de6188a5d8
Tidy up whitespace.
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llvm-svn: 110982
2010-08-12 23:50:08 +00:00
b83d1b694a
Use .empty() instead of .size().
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llvm-svn: 110981
2010-08-12 23:46:28 +00:00
991e4ee860
Handle an empty dupli.
...
This can happen if the original interval has been broken into two disconnected
parts. Ideally, we should be able to detect when the graph is disconnected and
create separate intervals, but that code is not implemented yet.
Example:
Two basic blocks are both branching to a loop header. Our interval is defined in
both basic blocks, and live into the loop along both edges.
We decide to split the interval around the loop. The interval is split into an
inside part and an outside part. The outside part now has two disconnected
segments, one in each basic block.
If we later decide to split the outside interval into single blocks, we get one
interval per basic block and an empty dupli for the remainder.
llvm-svn: 110976
2010-08-12 23:02:57 +00:00
32c181c444
Update the SplitAnalysis statistics as uses are moved from curli to the new
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split intervals. THis means the analysis can be used for multiple splits as long
as curli doesn't shrink.
llvm-svn: 110975
2010-08-12 23:02:55 +00:00
363226dfe8
fix PR7876: If ipsccp decides that a function's address is taken
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before it rewrites the code, we need to use that in the post-rewrite pass.
llvm-svn: 110962
2010-08-12 22:25:23 +00:00
cc20fe5937
Some small clean-up: use of pseudo instructions
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llvm-svn: 110954
2010-08-12 20:55:18 +00:00
8e8f1c133a
Cleaned up the for-disassembly-only entries in the arm instruction table so that
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the memory barrier variants (other than 'SY' full system domain read and write)
are treated as one instruction with option operand.
llvm-svn: 110951
2010-08-12 20:46:17 +00:00
0910689353
Also recompute HasPHIKill flags in LiveInterval::RenumberValues.
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If a phi-def value were removed from the interval, the phi-kill flags are no
longer valid.
llvm-svn: 110949
2010-08-12 20:38:03 +00:00
44a320dafa
Make sure ARM constant island pass does not break up an IT block. If the split point is in the middle of an IT block, it should move it up to just above the IT instruction. rdar://8302637
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llvm-svn: 110947
2010-08-12 20:30:05 +00:00
7f704b31a9
- Teach SSEDomainFix to switch between different levels of AVX instructions. Here we guess that AVX will have domain issues, so just implement them for consistency and in the future we remove if it's unnecessary.
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- Make foldMemoryOperandImpl aware of 256-bit zero vectors folding and support the 128-bit counterparts of AVX too.
- Make sure MOV[AU]PS instructions are only selected when SSE1 is enabled, and duplicate the patterns to match AVX.
- Add a testcase for a simple 128-bit zero vector creation.
llvm-svn: 110946
2010-08-12 20:20:53 +00:00
073cd8004a
Remove trailing whitespace.
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llvm-svn: 110944
2010-08-12 20:01:23 +00:00
fa3ea11ae6
Clean up debug output.
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llvm-svn: 110940
2010-08-12 18:50:55 +00:00
7e1a30c0d3
Define AVX 128-bit pattern versions of SET0PS/PD.
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llvm-svn: 110937
2010-08-12 18:20:59 +00:00
86fa07ea05
Add a test for llvm-gcc svn 110632.
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llvm-svn: 110935
2010-08-12 17:31:41 +00:00
622848b262
Implement single block splitting.
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Before spilling a live range, we split it into a separate range for each basic
block where it is used. That way we only get one reload per basic block if the
new smaller ranges can allocate to a register.
This type of splitting is already present in the standard spiller.
llvm-svn: 110934
2010-08-12 17:07:14 +00:00
2de47777f4
Optimize ScalarEvolution::getAddExpr's operand factoring code by
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having it finish processing all of the muliply operands before
starting the whole getAddExpr process over again, instead of
immediately after the first simplification.
llvm-svn: 110916
2010-08-12 15:00:23 +00:00
157847f5d1
Hoist some loop-invariant code out of a hot loop.
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llvm-svn: 110915
2010-08-12 14:52:55 +00:00
Bob Wilson