3ac059369b
Add a newline to debug output
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llvm-svn: 111453
2010-08-18 23:14:02 +00:00
3decde9305
refix PR1143 by making basicaa analyze zexts of indices aggresively,
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which I broke with a recent patch.
llvm-svn: 111452
2010-08-18 23:09:49 +00:00
25b6068b8f
If any def of a machine-sink candidate has local uses, it's obviously not safe to sink it to a successor block. This bug has been hidden because a later check for critical-edge disable these illegal optimizations. This patch should significantly reduce the amount of time spent on checking dominator information for obviously unsafe sinking.
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llvm-svn: 111450
2010-08-18 23:09:25 +00:00
26403acef7
GetLinearExpression is only called when TD is non-null, pass as
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a reference instead of pointer.
llvm-svn: 111445
2010-08-18 22:52:09 +00:00
1b9c38796e
rework GEP decomposition to make a new VariableGEPIndex struct instead of
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using a pair. This tidies up the code a bit. While setting things up, add
a (currently unused) field to keep track of how the value is extended.
llvm-svn: 111444
2010-08-18 22:47:56 +00:00
dbfc2ce95d
Enable ARM base register reuse to local stack slot allocation. Whenever a new
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frame index reference to an object in the local block is seen, check if
it's near enough to any previously allocaated base register to re-use.
rdar://8277890
llvm-svn: 111443
2010-08-18 22:44:49 +00:00
492c2ea31e
Add a testcase to verify that commands don't crash when they hit
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errors on stderr.
llvm-svn: 111440
2010-08-18 22:35:56 +00:00
c825ceefb4
Make raw_fd_ostream consider itself the owner of STDOUT_FILENO when
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constructed with an output filename of "-". In particular, allow the
file descriptor to be closed, and close the file descriptor in the
destructor if it hasn't been explicitly closed already, to ensure
that any write errors are detected.
llvm-svn: 111436
2010-08-18 22:26:19 +00:00
82656fb0e1
When sending stats output to stdout for grepping, don't emit normal
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output to standard output also.
llvm-svn: 111435
2010-08-18 22:22:44 +00:00
9f7500f57b
move gep decomposition out of ValueTracking into BasicAA. The form of
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
Now with less tree breakingness.
llvm-svn: 111433
2010-08-18 22:07:29 +00:00
3490ff4002
Tidy.
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llvm-svn: 111432
2010-08-18 22:04:43 +00:00
ad2aa57774
Minor simplification. Gets rid of a needless temporary.
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llvm-svn: 111430
2010-08-18 21:32:07 +00:00
80d19f0905
Use ConstantRange to propagate information through value definitions.
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llvm-svn: 111425
2010-08-18 21:11:37 +00:00
2470818942
When sending stats output to stdout for grepping, don't emit normal
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output to standard output also.
llvm-svn: 111401
2010-08-18 20:32:46 +00:00
e98030ad58
Thinking about it, we don't need MachineDominatorTree after all. The DomValue
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map discovers the iterated dominance frontier for free.
llvm-svn: 111400
2010-08-18 20:29:53 +00:00
50377a366f
Introduce a ScopedFatalErrorHandler class to make it easy to register
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fatal error handlers which automatically get unregistered at the end
of a scope.
llvm-svn: 111398
2010-08-18 20:16:39 +00:00
f4088b022a
Revert r111394. It was too aggressive.
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We must complete the DFS, otherwise we might miss needed phi-defs, and
prematurely color live ranges with a non-dominating value.
This is not a big deal since we get to color more of the CFG and the next
mapValue call will be faster.
llvm-svn: 111397
2010-08-18 20:06:05 +00:00
5b4cb08471
Aggressively prune the DFS when inserting phi-defs.
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llvm-svn: 111394
2010-08-18 19:00:11 +00:00
ce6f055b4d
Add the LiveIntervalMap class. Don't hook it up yet.
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LiveIntervalMap maps values from a parent LiveInterval to a child interval that
is a strict subset. It will create phi-def values as needed to preserve the
VNInfo SSA form in the child interval.
This leads to an algorithm very similar to the one in SSAUpdaterImpl.h, but with
enough differences that the code can't be reused:
- We don't need to manipulate PHI instructions.
- LiveIntervals have kills.
- We have MachineDominatorTree.
- We can use df_iterator.
llvm-svn: 111393
2010-08-18 19:00:08 +00:00
2ba69d2313
Add df_iterator::getPathLength and getPath as a way of getting a path from the
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entry node to the current node.
llvm-svn: 111392
2010-08-18 19:00:05 +00:00
fbeeb130d8
Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The
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form of", it doesn't pass tests.
llvm-svn: 111385
2010-08-18 18:43:08 +00:00
0d323aef46
Improve whitespace.
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llvm-svn: 111384
2010-08-18 18:41:13 +00:00
817e857b13
Marked with ATTRIBUTE_USED so that clang doesn't complain.
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llvm-svn: 111383
2010-08-18 18:40:57 +00:00
208636fa33
Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues.
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llvm-svn: 111382
2010-08-18 18:39:01 +00:00
8e92d9b68d
MC/ELF: Allow null values in virtual sections, ELF doesn't use special
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directives for putting contents in .bss, for example.
llvm-svn: 111376
2010-08-18 18:22:37 +00:00
54fe883203
move gep decomposition out of ValueTracking into BasicAA. The form of
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
llvm-svn: 111375
2010-08-18 18:22:17 +00:00
e0e9b3013f
Add hook for re-using virtual base registers for local stack slot access.
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Nothing fancy, just ask the target if any currently available base reg
is in range for the instruction under consideration and use the first one
that is. Placeholder ARM implementation simply returns false for now.
ongoing saga of rdar://8277890
llvm-svn: 111374
2010-08-18 17:57:37 +00:00
7ba6f22b47
Eliminate some redundancy by relying on raw_fd_ostream to handle "-"
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properly.
llvm-svn: 111373
2010-08-18 17:55:15 +00:00
083330a8f2
Allow the -analyze option to follow the -o option, which defaults to
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standard output, instead of just hardcoding outs().
llvm-svn: 111372
2010-08-18 17:42:59 +00:00
b01aed1cb2
Don't translate "-" to outs() manually; raw_ostream does that automatically.
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llvm-svn: 111371
2010-08-18 17:40:10 +00:00
80f9de4bb5
Don't translate "-" to outs() manually; raw_ostream does that
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automatically.
llvm-svn: 111370
2010-08-18 17:26:50 +00:00
6111d7c05b
Don't register stdout to be deleted on a signal.
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llvm-svn: 111368
2010-08-18 17:21:42 +00:00
3d051ff2bc
Remove an unused command-line option.
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llvm-svn: 111367
2010-08-18 17:20:51 +00:00
952a621d93
Preserve subregs on PHI source operands. Patch by Krister Wombell!
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llvm-svn: 111366
2010-08-18 16:09:47 +00:00
e60b5161d1
Fix a bug with insertelement on SPU.
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The previous algorithm in LowerVECTOR_SHUFFLE
didn't check all requirements for "monotonic" shuffles.
llvm-svn: 111361
2010-08-18 10:20:29 +00:00
ab49360f59
Remove all traces of v2[i,f]32 on SPU.
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The "half vectors" are now widened to full size by the legalizer.
The only exception is in parameter passing, where half vectors are
expanded. This causes changes to some dejagnu tests.
llvm-svn: 111360
2010-08-18 10:04:39 +00:00
f3984d1ef6
Change SPU C calling convention to match that described in
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"SPU Application Binary Interface Specification, v1.9" by
IBM.
Specifically: use r3-r74 to pass parameters and the return value.
llvm-svn: 111358
2010-08-18 09:50:30 +00:00
a25c05ed15
fix a buggy test
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llvm-svn: 111354
2010-08-18 04:55:12 +00:00
a33edcb56c
fix PR7589: In brief:
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gep P, (zext x) != gep P, (sext x)
DecomposeGEPExpression was getting this wrong, confusing
basicaa.
llvm-svn: 111352
2010-08-18 04:28:19 +00:00
c8e38eb60b
filecheckize and detrivialize.
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llvm-svn: 111350
2010-08-18 04:25:43 +00:00
3c603024bb
Fix PR7755: knowing something about an inval for a pred
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from the LHS should disable reconsidering that pred on the
RHS. However, knowing something about the pred on the RHS
shouldn't disable subsequent additions on the RHS from
happening.
llvm-svn: 111349
2010-08-18 03:14:36 +00:00
f0b5b67ba5
fit in 80 cols
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llvm-svn: 111348
2010-08-18 03:13:35 +00:00
2edfdd289f
remove some dead code.
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llvm-svn: 111345
2010-08-18 02:42:11 +00:00
b45de95345
remove some dead code.
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llvm-svn: 111344
2010-08-18 02:41:56 +00:00
3e3e63efe1
remove some code that is dead now that lea's are modeled with segment registers.
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llvm-svn: 111343
2010-08-18 02:40:44 +00:00
6aabb66139
remove dead prototype.
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llvm-svn: 111342
2010-08-18 02:37:06 +00:00
fb7eaff759
Expand ZERO_EXTEND operations for NEON vector types.
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Testcase from Nick Lewycky.
llvm-svn: 111341
2010-08-18 01:45:52 +00:00
a610304ed9
Fix the "Finished Creating" messages for aliases to print the
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right name.
llvm-svn: 111340
2010-08-18 01:35:53 +00:00
44790e7aa7
Revert r111321. This doesn't fix a problem.
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llvm-svn: 111339
2010-08-18 01:34:52 +00:00
b91c903f46
stomp some more undefined behavior, PR7775.
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llvm-svn: 111337
2010-08-18 00:33:47 +00:00
Jim Grosbach