Chris Lattner [Sun, 2 Jan 2011 20:24:21 +0000 (20:24 +0000)]
If a loop iterates exactly once (has backedge count = 0) then don't
mess with it. We'd rather peel/unroll it than convert all of its
stores into memsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122711
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Benjamin Kramer [Sun, 2 Jan 2011 19:57:05 +0000 (19:57 +0000)]
Try to reuse the value when lowering memset.
This allows us to compile:
void test(char *s, int a) {
__builtin_memset(s, a, 15);
}
into 1 mul + 3 stores instead of 3 muls + 3 stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122710
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Sun, 2 Jan 2011 19:44:58 +0000 (19:44 +0000)]
Lower the i8 extension in memset to a multiply instead of a potentially long series of shifts and ors.
We could implement a DAGCombine to turn x * 0x0101 back into logic operations
on targets that doesn't support the multiply or it is slow (p4) if someone cares
enough.
Example code:
void test(char *s, int a) {
__builtin_memset(s, a, 4);
}
before:
_test: ## @test
movzbl 8(%esp), %eax
movl %eax, %ecx
shll $8, %ecx
orl %eax, %ecx
movl %ecx, %eax
shll $16, %eax
orl %ecx, %eax
movl 4(%esp), %ecx
movl %eax, 4(%ecx)
movl %eax, (%ecx)
ret
after:
_test: ## @test
movzbl 8(%esp), %eax
imull $
16843009, %eax, %eax ## imm = 0x1010101
movl 4(%esp), %ecx
movl %eax, 4(%ecx)
movl %eax, (%ecx)
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122707
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Oscar Fuentes [Sun, 2 Jan 2011 19:32:31 +0000 (19:32 +0000)]
A workaround for a bug in cmake 2.8.3 diagnosed on PR 8885.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122706
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Nick Lewycky [Sun, 2 Jan 2011 19:16:44 +0000 (19:16 +0000)]
Also remove functions that use complex constant expressions in terms of
another function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122705
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 2 Jan 2011 19:01:03 +0000 (19:01 +0000)]
enhance loop idiom recognition to scan *all* unconditionally executed
blocks in a loop, instead of just the header block. This makes it more
aggressive, able to handle Duncan's Ada examples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122704
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 2 Jan 2011 18:53:08 +0000 (18:53 +0000)]
make inSubLoop much more efficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122703
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 2 Jan 2011 18:45:39 +0000 (18:45 +0000)]
rip out isExitBlockDominatedByBlockInLoop, calling DomTree::dominates instead.
isExitBlockDominatedByBlockInLoop is a relic of the days when domtree was
*just* a tree and didn't have DFS numbers. Checking DFS numbers is faster
and easier than "limiting the search of the tree".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122702
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 2 Jan 2011 18:32:09 +0000 (18:32 +0000)]
add a list of opportunities for future improvement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122701
91177308-0d34-0410-b5e6-
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Chris Lattner [Sun, 2 Jan 2011 18:31:38 +0000 (18:31 +0000)]
update a bunch of entries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122700
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Duncan Sands [Sun, 2 Jan 2011 13:38:21 +0000 (13:38 +0000)]
Fix PR8702 by not having LoopSimplify claim to preserve LCSSA form. As described
in the PR, the pass could break LCSSA form when inserting preheaders. It probably
would be easy enough to fix this, but since currently we always go into LCSSA form
after running this pass, doing so is not urgent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122695
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Sun, 2 Jan 2011 12:37:22 +0000 (12:37 +0000)]
Remove an unused member function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122693
91177308-0d34-0410-b5e6-
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Oscar Fuentes [Sun, 2 Jan 2011 12:30:18 +0000 (12:30 +0000)]
Propagate to parent scope changes made to CMAKE_CXX_FLAGS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122692
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Sun, 2 Jan 2011 12:17:10 +0000 (12:17 +0000)]
Fix a typo in a variable name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122691
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Cameron Zwarich [Sun, 2 Jan 2011 10:50:14 +0000 (10:50 +0000)]
Move a load into the only branch where it is used and eliminate a temporary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122690
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Cameron Zwarich [Sun, 2 Jan 2011 10:40:14 +0000 (10:40 +0000)]
Add the explanatory comment from r122680's commit message to the code itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122689
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Cameron Zwarich [Sun, 2 Jan 2011 10:10:02 +0000 (10:10 +0000)]
Tidy up indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122688
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Cameron Zwarich [Sun, 2 Jan 2011 10:06:44 +0000 (10:06 +0000)]
Fix a typo, which should also fix the failure on llvm-x86_64-linux-checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122687
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Chris Lattner [Sun, 2 Jan 2011 07:58:36 +0000 (07:58 +0000)]
Allow loop-idiom to run on multiple BB loops, but still only scan the loop
header for now for memset/memcpy opportunities. It turns out that loop-rotate
is successfully rotating loops, but *DOESN'T MERGE THE BLOCKS*, turning "for
loops" into 2 basic block loops that loop-idiom was ignoring.
With this fix, we form many *many* more memcpy and memsets than before, including
on the "history" loops in the viterbi benchmark, which look like this:
for (j=0; j<MAX_history; ++j) {
history_new[i][j+1] = history[2*i][j];
}
Transforming these loops into memcpy's speeds up the viterbi benchmark from
11.98s to 3.55s on my machine. Woo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122685
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Cameron Zwarich [Sun, 2 Jan 2011 07:53:49 +0000 (07:53 +0000)]
Remove the #ifdef'd code for balancing the eval-link data structure. It doesn't
compile, and everyone's tests have shown it to be slower in practice, even for
quite large graphs.
I also hope to do an optimization that is only correct with the simpler data
structure, which would break this even further.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122684
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Chris Lattner [Sun, 2 Jan 2011 07:37:13 +0000 (07:37 +0000)]
remove debugging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122683
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Chris Lattner [Sun, 2 Jan 2011 07:36:44 +0000 (07:36 +0000)]
add some -stats output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122682
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Chris Lattner [Sun, 2 Jan 2011 07:35:53 +0000 (07:35 +0000)]
improve loop rotation to use CodeMetrics to analyze the
size of a loop header instead of its own code size estimator.
This allows it to handle bitcasts etc more precisely.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122681
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Cameron Zwarich [Sun, 2 Jan 2011 07:03:00 +0000 (07:03 +0000)]
Speed up dominator computation some more by optimizing bucket processing. When
naively implemented, the Lengauer-Tarjan algorithm requires a separate bucket
for each vertex. However, this is unnecessary, because each vertex is only
placed into a single bucket (that of its semidominator), and each vertex's
bucket is processed before it is added to any bucket itself.
Instead of using a bucket per vertex, we use a single array Buckets that has two
purposes. Before the vertex V with DFS number i is processed, Buckets[i] stores
the index of the first element in V's bucket. After V's bucket is processed,
Buckets[i] stores the index of the next element in the bucket to which V now
belongs, if any.
Reading from the buckets can also be optimized. Instead of processing the bucket
of V's parent at the end of processing V, we process the bucket of V itself at
the beginning of processing V. This means that the case of the root vertex can
be simplified somewhat. It also means that we don't need to look up the DFS
number of the semidominator of every node in the bucket we are processing,
since we know it is the current index being processed.
This is a 6.5% speedup running -domtree on test-suite + SPEC2000/2006, with
larger speedups of around 12% on the larger benchmarks like GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122680
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Chris Lattner [Sun, 2 Jan 2011 03:37:56 +0000 (03:37 +0000)]
teach loop idiom recognition to form memcpy's from simple loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122678
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Nick Lewycky [Sun, 2 Jan 2011 02:46:33 +0000 (02:46 +0000)]
Remove functions from the FnSet when one of their callee's is being merged. This
maintains the guarantee that the DenseSet expects two elements it contains to
not go from inequal to equal under its nose.
As a side-effect, this also lets us switch from iterating to a fixed-point to
actually maintaining a work queue of functions to look at again, and we don't
add thunks to our work queue so we don't need to detect and ignore them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122677
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Chris Lattner [Sat, 1 Jan 2011 22:57:31 +0000 (22:57 +0000)]
a missed __builtin_object_size case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122676
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Chris Lattner [Sat, 1 Jan 2011 22:52:11 +0000 (22:52 +0000)]
various updates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122675
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Chris Lattner [Sat, 1 Jan 2011 22:31:46 +0000 (22:31 +0000)]
fix a globalopt crash on two Adobe-C++ testcases that the recent
loop idiom pass exposed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122674
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Rafael Espindola [Sat, 1 Jan 2011 21:58:41 +0000 (21:58 +0000)]
Fix darwin bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122672
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Benjamin Kramer [Sat, 1 Jan 2011 21:53:18 +0000 (21:53 +0000)]
Remove empty directories left behind by git-svn users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122671
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Rafael Espindola [Sat, 1 Jan 2011 20:58:46 +0000 (20:58 +0000)]
Add support for the 'H' modifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122667
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Anton Korobeynikov [Sat, 1 Jan 2011 20:57:26 +0000 (20:57 +0000)]
Update the test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122666
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Chris Lattner [Sat, 1 Jan 2011 20:39:18 +0000 (20:39 +0000)]
turn on memset idiom recognition by default. Though there are still lots of
limitations, this kicks in dozens of times in the 4 specfp2000 benchmarks,
and hundreds of times in the int part. It also kicks in hundreds of times
in multisource.
This kicks in right before loop deletion, which has the pleasant effect of
deleting loops that *just* do a memset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122664
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Anton Korobeynikov [Sat, 1 Jan 2011 20:38:38 +0000 (20:38 +0000)]
Model operand restrictions of mul-like instructions on ARMv5 via
earlyclobber stuff. This should fix PRs 2313 and 8157.
Unfortunately, no testcase, since it'd be dependent on register
assignments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122663
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Chris Lattner [Sat, 1 Jan 2011 20:12:04 +0000 (20:12 +0000)]
add a validity check that was missed, fixing a crash on the
new testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122662
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Duncan Sands [Sat, 1 Jan 2011 20:08:02 +0000 (20:08 +0000)]
Revert commit 122654 at the request of Chris, who reckons that instsimplify
is the wrong hammer for this nail, and is probably right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122661
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Chris Lattner [Sat, 1 Jan 2011 19:54:22 +0000 (19:54 +0000)]
improve validity check to handle constant-trip-count loops more
aggressively. In practice, this doesn't help anything though,
see the todo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122660
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Chris Lattner [Sat, 1 Jan 2011 19:39:01 +0000 (19:39 +0000)]
implement the "no aliasing accesses in loop" safety check. This pass
should be correct now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122659
91177308-0d34-0410-b5e6-
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Rafael Espindola [Sat, 1 Jan 2011 19:05:35 +0000 (19:05 +0000)]
Fix PR8878.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122658
91177308-0d34-0410-b5e6-
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Duncan Sands [Sat, 1 Jan 2011 17:37:07 +0000 (17:37 +0000)]
Correct a bunch of mistakes which meant that the example pass didn't
even compile, let alone work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122657
91177308-0d34-0410-b5e6-
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Duncan Sands [Sat, 1 Jan 2011 17:28:49 +0000 (17:28 +0000)]
I was unable to get the instructions to work if LLVM was built
using a separate objects directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122656
91177308-0d34-0410-b5e6-
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Duncan Sands [Sat, 1 Jan 2011 17:21:58 +0000 (17:21 +0000)]
Clarify that the loadable module turns up in the top-level directory,
not locally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122655
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Duncan Sands [Sat, 1 Jan 2011 16:12:09 +0000 (16:12 +0000)]
Fix a README item by having InstructionSimplify do a mild form of value
numbering, in which it considers (for example) "%a = add i32 %x, %y" and
"%b = add i32 %x, %y" to be equal because the operands are equal and the
result of the instructions only depends on the values of the operands.
This has almost no effect (it removes 4 instructions from gcc-as-one-file),
and perhaps slows down compilation: I measured a 0.4% slowdown on the large
gcc-as-one-file testcase, but it wasn't statistically significant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122654
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Che-Liang Chiou [Sat, 1 Jan 2011 11:58:58 +0000 (11:58 +0000)]
ptx: remove reg-reg addressing mode and st.const
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122653
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Che-Liang Chiou [Sat, 1 Jan 2011 10:50:37 +0000 (10:50 +0000)]
ptx: add store instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122652
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Erick Tryzelaar [Sat, 1 Jan 2011 03:29:25 +0000 (03:29 +0000)]
Add a reference to the OCamlLangImpl8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122651
91177308-0d34-0410-b5e6-
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Erick Tryzelaar [Sat, 1 Jan 2011 03:27:43 +0000 (03:27 +0000)]
Add an OCaml tutorial page 8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122650
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Oscar Fuentes [Fri, 31 Dec 2010 20:15:37 +0000 (20:15 +0000)]
Add to the list of cmake files the object file, not the asm file. This
is necessary for executing the custom command that runs the
assember. Fixes PR8877.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122649
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Oscar Fuentes [Fri, 31 Dec 2010 19:10:49 +0000 (19:10 +0000)]
CMake (MSVC): cmake automatically adds the /EHsc and /GR compiler
options. If we are building with exceptions/rtti disabled, we replace
/EHsc with /EHs-c- and /GR with /GR-, respectively. If we just add the
disabling options we get warnings like this:
cl : Command line warning D9025 : overriding '/EHs' with '/EHs-'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122648
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Duncan Sands [Fri, 31 Dec 2010 17:49:05 +0000 (17:49 +0000)]
Simplify this pass by using a depth-first iterator to ensure that all
operands are visited before the instructions themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122647
91177308-0d34-0410-b5e6-
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Duncan Sands [Fri, 31 Dec 2010 16:17:54 +0000 (16:17 +0000)]
Zap dead instructions harder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122645
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 30 Dec 2010 22:34:44 +0000 (22:34 +0000)]
Make a bunch of symbols internal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122642
91177308-0d34-0410-b5e6-
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Nick Lewycky [Thu, 30 Dec 2010 22:10:49 +0000 (22:10 +0000)]
Add another non-commutable instruction that gas accepts commuted forms for.
Fixes PR8861.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122641
91177308-0d34-0410-b5e6-
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Che-Liang Chiou [Thu, 30 Dec 2010 10:41:27 +0000 (10:41 +0000)]
ptx: add state spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122638
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 30 Dec 2010 02:49:45 +0000 (02:49 +0000)]
include the module identifier when emitting this warning, PR8865.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122637
91177308-0d34-0410-b5e6-
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Chris Lattner [Thu, 30 Dec 2010 01:07:20 +0000 (01:07 +0000)]
print the right string, thanks for Frits for noticing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122636
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Cameron Zwarich [Thu, 30 Dec 2010 00:42:23 +0000 (00:42 +0000)]
Use getVRegDef() instead of def_iterator. This leads to fewer defs being added
with 2-address instructions, for about a 3.5% speedup of StrongPHIElimination on
403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122635
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 29 Dec 2010 22:41:18 +0000 (22:41 +0000)]
improve warning message to at least say what the triples are.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122632
91177308-0d34-0410-b5e6-
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Wesley Peck [Wed, 29 Dec 2010 19:46:28 +0000 (19:46 +0000)]
Fix stack layout error in MBlaze backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122631
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Wed, 29 Dec 2010 14:14:06 +0000 (14:14 +0000)]
MC/Mach-O/Thumb: Set the thumb bit in the symbol table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122630
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Cameron Zwarich [Wed, 29 Dec 2010 11:49:10 +0000 (11:49 +0000)]
None of the other pass names in CodeGen have terminating periods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122628
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Wed, 29 Dec 2010 11:00:09 +0000 (11:00 +0000)]
Instead of processing every instruction when splitting interferences, only
process those instructions that define phi sources. This is a 47% speedup of
StrongPHIElimination compile time on 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122627
91177308-0d34-0410-b5e6-
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Venkatraman Govindaraju [Wed, 29 Dec 2010 05:37:15 +0000 (05:37 +0000)]
SPARC backend fix: correctly passing arguments through stack
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122626
91177308-0d34-0410-b5e6-
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Cameron Zwarich [Wed, 29 Dec 2010 04:42:39 +0000 (04:42 +0000)]
Add a missing word to a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122625
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Rafael Espindola [Wed, 29 Dec 2010 04:31:26 +0000 (04:31 +0000)]
Correctly encode pcrel|indirect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122624
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:27 +0000 (03:59 +0000)]
CMake: Add disabling optimization on MSVC8 and MSVC10 as workaround for some files in Target/ARM and Target/X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122623
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:14 +0000 (03:59 +0000)]
autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.
Cygwin has stdc++.dll in it's distribution, and we can assume distro's stdc++.dll might be available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122622
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:59:03 +0000 (03:59 +0000)]
autoconf: [PR7874] Add --disable-pthreads to suppress detecting pthreads on certain hosts.
This would be needed to build pthread*.dll-free distribution on recent MinGW-MSYS distros.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122621
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:56 +0000 (03:58 +0000)]
test/Transforms/ConstProp/logicaltest.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122620
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:47 +0000 (03:58 +0000)]
test/CodeGen/X86/negative-sin.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122619
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NAKAMURA Takumi [Wed, 29 Dec 2010 03:58:36 +0000 (03:58 +0000)]
test/CodeGen/X86/fp-in-intregs.ll: FileCheck-ize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122618
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Cameron Zwarich [Wed, 29 Dec 2010 03:52:51 +0000 (03:52 +0000)]
Add text explaining an assertion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122617
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Rafael Espindola [Wed, 29 Dec 2010 02:42:33 +0000 (02:42 +0000)]
Remove second return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122616
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Rafael Espindola [Wed, 29 Dec 2010 02:30:49 +0000 (02:30 +0000)]
Fix bug when trying to output uint16_t or uint32_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122615
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Rafael Espindola [Wed, 29 Dec 2010 01:42:56 +0000 (01:42 +0000)]
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
like 6 is a fixed point of that and so the previous tests were OK :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614
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Chris Lattner [Wed, 29 Dec 2010 01:33:36 +0000 (01:33 +0000)]
fix PR8867: a crash handling fp128. Thanks to Nick for the testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122613
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Rafael Espindola [Wed, 29 Dec 2010 00:26:06 +0000 (00:26 +0000)]
Implement cfi_def_cfa_register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122612
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Rafael Espindola [Wed, 29 Dec 2010 00:09:59 +0000 (00:09 +0000)]
Initial .cfi_offset implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122611
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Cameron Zwarich [Tue, 28 Dec 2010 23:45:38 +0000 (23:45 +0000)]
Simplify some code in MachineVerifier that was doing the correct thing, but not
in the most obvious way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122610
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Rafael Espindola [Tue, 28 Dec 2010 23:38:03 +0000 (23:38 +0000)]
Don't produce a "DW_CFA_advance_loc 0".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122609
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Cameron Zwarich [Tue, 28 Dec 2010 23:02:56 +0000 (23:02 +0000)]
Revert the optimization in r122596. It is correct for all current targets, but
it relies on assumptions that may not be true in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122608
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Venkatraman Govindaraju [Tue, 28 Dec 2010 20:39:17 +0000 (20:39 +0000)]
Multiple SPARC backend fixes: added Y register; updated select_cc, subx, subxcc defs/uses;
and fixed CustomInserter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122607
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Tobias Grosser [Tue, 28 Dec 2010 20:29:31 +0000 (20:29 +0000)]
Integers are primitive types. Update the documentation to state this
This was done for label, void, floating point, x86mmx, metadata,
just not integer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122606
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Chris Lattner [Tue, 28 Dec 2010 18:53:48 +0000 (18:53 +0000)]
simplify this, isBytewiseValue handles the extra check. We still
check for "multiple of a byte" in size to make it clear that the
>> 3 below is safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122604
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Chris Lattner [Tue, 28 Dec 2010 18:45:02 +0000 (18:45 +0000)]
add a note from llvmdev
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122603
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Rafael Espindola [Tue, 28 Dec 2010 18:36:23 +0000 (18:36 +0000)]
Implement .cfi_remember_state and .cfi_restore_state.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602
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Duncan Sands [Tue, 28 Dec 2010 18:01:19 +0000 (18:01 +0000)]
Clarify that InstructionSimplify only returns values that dominate the
original instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122601
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Duncan Sands [Tue, 28 Dec 2010 18:00:24 +0000 (18:00 +0000)]
Small optimization to speed up replacementPreservesLCSSAForm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122600
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Benjamin Kramer [Tue, 28 Dec 2010 13:52:52 +0000 (13:52 +0000)]
Cast away "comparison between signed and unsigned integer" warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122598
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Benjamin Kramer [Tue, 28 Dec 2010 13:05:13 +0000 (13:05 +0000)]
Fix a signed/unsigned comparison warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122597
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Cameron Zwarich [Tue, 28 Dec 2010 10:49:33 +0000 (10:49 +0000)]
Avoid iterating every operand of an instruction in StrongPHIElimination, since
we are only interested in the defs when discovering interferences.
This is a 28% speedup running StrongPHIElimination on 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122596
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Duncan Sands [Tue, 28 Dec 2010 10:07:15 +0000 (10:07 +0000)]
Pacify the compiler. BestWeight cannot in fact be used uninitialized
in this function, but the compiler was warning that it might be when
doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122595
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Duncan Sands [Tue, 28 Dec 2010 10:02:42 +0000 (10:02 +0000)]
Fix warning about size potentially being used uninitialized
when doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122594
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Duncan Sands [Tue, 28 Dec 2010 09:41:15 +0000 (09:41 +0000)]
Silence gcc warning about an unused variable when doing a release build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122593
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Rafael Espindola [Tue, 28 Dec 2010 05:39:27 +0000 (05:39 +0000)]
Relax address updates in the eh_frame section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591
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Rafael Espindola [Tue, 28 Dec 2010 04:15:37 +0000 (04:15 +0000)]
Start adding basic support for emitting the call frame instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:21 +0000 (01:49 +0000)]
Support/Path: Deprecate Path::hasMagicNumber and replace all uses with fs::has_magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122589
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:10 +0000 (01:49 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122588
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Michael J. Spencer [Tue, 28 Dec 2010 01:49:01 +0000 (01:49 +0000)]
Support/PathV2: Implement has_magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122587
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