66f84e7a42
Add helper pass to remove llvm.dbg.declare intrinsics.
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llvm-svn: 66454
2009-03-09 20:49:37 +00:00
e201f8ff1d
Move the sorting of the StrideOrder array earlier so that it doesn't
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have to be done twice.
llvm-svn: 66449
2009-03-09 20:46:50 +00:00
b5001909b0
Delete the isOnlyStride argument, which is unused.
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llvm-svn: 66446
2009-03-09 20:41:15 +00:00
85875f7120
Tidy some LSR debug output: announce the loop it's about to process
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before it does any processing.
llvm-svn: 66443
2009-03-09 20:34:59 +00:00
5cbd3d9c52
This debug info special case should no longer
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be needed now that these intrinsics are marked
as not accessing memory.
llvm-svn: 66420
2009-03-09 11:57:08 +00:00
0eab5ecb71
reimplement AliasSetTracker in terms of DenseMap instead of hash_map,
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hopefully no functionality change.
llvm-svn: 66398
2009-03-09 05:11:09 +00:00
dc9642feb1
Keep calling-convention and tail-call bit when creating new invoke or call.
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llvm-svn: 66384
2009-03-08 19:02:17 +00:00
9ec96d19e3
Fix comments, pointed out by Duncan Sands.
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llvm-svn: 66381
2009-03-08 17:08:09 +00:00
fbed86a865
Mark function returns as noalias.
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llvm-svn: 66369
2009-03-08 06:20:47 +00:00
21a84f3054
teach SROA to handle promoting vector allocas with a memset into them into
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a vector type instead of into an integer type.
llvm-svn: 66368
2009-03-08 04:17:04 +00:00
c009757761
Enhance SROA to "promote to scalar" allocas which are
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memcpy/memmove'd into or out of. This fixes a serious
perf issue that Nate ran into.
llvm-svn: 66366
2009-03-08 04:04:21 +00:00
dc35e5b43a
change the MemIntrinsic get/setAlignment method to take an unsigned
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instead of a Constant*, which is what the clients of it really want.
llvm-svn: 66364
2009-03-08 03:59:00 +00:00
fee0a55c84
use MemTransferInst.
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llvm-svn: 66362
2009-03-08 03:37:35 +00:00
334268a211
Introduce a new MemTransferInst pseudo class, which is a common
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parent between MemCpyInst and MemMoveInst, simplify some code to
use it.
llvm-svn: 66361
2009-03-08 03:37:16 +00:00
e313283199
fix a serious pessimization that Tron on IRC pointed out where we would
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"boolify" pointers, generating really awful code because getting the pointer
value requires a load itself. Before:
_foo:
movb $1, _X.b
ret
_get:
xorl %ecx, %ecx
movb _X.b, %al
testb %al, %al
movl $_Y, %eax
cmove %ecx, %eax
ret
With the xform disabled:
_foo:
movl $_Y, _X
ret
_get:
movl _X, %eax
ret
llvm-svn: 66351
2009-03-07 23:32:02 +00:00
12da8ce3d2
Introduce new linkage types linkonce_odr, weak_odr, common_odr
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and extern_weak_odr. These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global. In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time. This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function. If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body. The
code generators on the other hand map weak and weak_odr linkage
to the same thing.
llvm-svn: 66339
2009-03-07 15:45:40 +00:00
6e447e08ee
Fix another case where debug info interferes with
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an optimization.
llvm-svn: 66288
2009-03-06 21:08:33 +00:00
e48f897ca7
add a bunch more passes to the C bindings (PR3734), patch by
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Lennart Augustsson!
llvm-svn: 66272
2009-03-06 16:52:18 +00:00
ed7228319a
While thinking about the one-definition-rule and trying
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to find a tiny mouse hole to squeeze through, it struck
me that globals without a name can be considered internal
since they can't be referenced from outside the current
module. This patch makes GlobalOpt give them internal
linkage. Also done for aliases even though they always
have names, since in my opinion anonymous aliases should
be allowed for consistency with global variables and
functions. So if that happens one day, this code is ready!
llvm-svn: 66267
2009-03-06 10:21:56 +00:00
25b625165f
While converting an aggregate to scalare, ignore and remove aggregate's debug info.
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llvm-svn: 66262
2009-03-06 07:03:54 +00:00
5aed7765b8
While hoisting instruction to speculatively execute simple bb, ignore dbg intrinsics.
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llvm-svn: 66255
2009-03-06 06:00:17 +00:00
e6d1e8d0cc
this wasn't intended to go in.
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llvm-svn: 66252
2009-03-06 05:42:30 +00:00
e3fc2d13be
Change various llvm utilities to use PrettyStackTraceProgram in
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their main routines. This makes the tools print their argc/argv
commands if they crash.
llvm-svn: 66248
2009-03-06 05:34:10 +00:00
bab43b4c91
Do not count DbgInfoIntrinsic while estimating loop header size.
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llvm-svn: 66245
2009-03-06 03:51:30 +00:00
e8c6d3102d
Skip DbgInfoIntrinsic.
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llvm-svn: 66244
2009-03-06 02:59:27 +00:00
fb1caf3e1f
Don't assign rank numbers to debug intrinsic "calls".
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This is needed so debug info doesn't change codegen.
llvm-svn: 66235
2009-03-06 01:41:59 +00:00
fc507a1f9c
Revert 66224.
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llvm-svn: 66233
2009-03-06 01:39:36 +00:00
d926aaa28f
Revert rev. 66167.
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We are still not out of woods yet.
llvm-svn: 66232
2009-03-06 01:37:41 +00:00
5fd4fc76bf
SRThreshold is meant to be inclusive.
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llvm-svn: 66227
2009-03-06 00:56:43 +00:00
073ab5acab
Tweak the check for promotable alloca's to handle
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debug intrinsics correctly.
llvm-svn: 66225
2009-03-06 00:42:50 +00:00
ab16577ade
Do not let debug info prevert globalopt from shriking a global vars to boolean.
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llvm-svn: 66224
2009-03-06 00:21:00 +00:00
0c970f94e9
Add "check/remove dbg var" helper routines.
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llvm-svn: 66223
2009-03-06 00:19:37 +00:00
709d6ac46d
GlobalOpt only process non constant local GVs while optimizing global vars.
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If non constant local GV named A is used by a constant local GV named B (e.g. llvm.dbg.variable) and B is not used by anyone else then eliminate A as well as B.
In other words, debug info should not interfere in removal of unused GV.
--This life, and those below, will be ignored--
M test/Transforms/GlobalOpt/2009-03-03-dbg.ll
M lib/Transforms/IPO/GlobalOpt.cpp
llvm-svn: 66167
2009-03-05 18:12:02 +00:00
b7922dee15
Do not split edges to EH landing pads. It will cause code size explosion.
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llvm-svn: 66140
2009-03-05 06:31:26 +00:00
78ab338024
Fix another case where debug info was affecting
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codegen. I convinced myself it was OK to skip all
pointer bitcasts here too.
llvm-svn: 66122
2009-03-05 02:06:48 +00:00
0bf1ded7bd
Add comment to emphasize that the while body is empty.
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llvm-svn: 66115
2009-03-05 01:08:35 +00:00
ad6b47377f
Fix another case where a dbg.declare meant something
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had 2 uses instead of 1.
llvm-svn: 66112
2009-03-05 00:39:02 +00:00
803da0db79
Temporarily revert r65994. It was causing rdar://6646455.
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llvm-svn: 66083
2009-03-04 22:02:09 +00:00
df4226c0e2
Re-commit 65975 and a fix for the problem that
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was causing llvm-gcc to fail to build. I've
verified it bootstraps now; good enough for me.
llvm-svn: 66073
2009-03-04 21:24:04 +00:00
66476b582d
Fix this comment.
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llvm-svn: 66065
2009-03-04 20:50:23 +00:00
ae0035ee15
Add an assertion for a condition that's always true, and not
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immediately obvious.
llvm-svn: 66062
2009-03-04 20:49:01 +00:00
a41bb40458
complete comment.
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llvm-svn: 66055
2009-03-04 19:23:25 +00:00
b5b0c87be6
this wasn't intended to be committed.
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llvm-svn: 66054
2009-03-04 19:22:30 +00:00
5c204c92a4
Fix PR3720 by properly propagating alignment information from memcpy/memmove
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onto element accesses.
llvm-svn: 66053
2009-03-04 19:20:50 +00:00
845e582cbe
Revert unintended commmit.
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llvm-svn: 66001
2009-03-04 02:09:48 +00:00
d71c20081c
Skip ptr-to-ptr bitcasts when counting in another case.
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llvm-svn: 66000
2009-03-04 02:06:53 +00:00
c8b5a6ef7d
Always skip ptr-to-ptr bitcasts when counting,
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per Chris' suggestion. Slightly faster.
llvm-svn: 65999
2009-03-04 01:53:05 +00:00
812459613b
If a global constant is dead then global's debug info should not prevent the optimizer in deleting the global. And while deleting global, delete global's debug info also.
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llvm-svn: 65994
2009-03-04 01:22:23 +00:00
0365d3b8b5
Make my earlier patch to skip debug intrinsics
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when counting work; it was only off by 1.
llvm-svn: 65993
2009-03-04 01:20:34 +00:00
738c60f259
Marking debug info intrinsics as not touching memory
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caused them to be considered trivially dead. Fix this.
llvm-svn: 65979
2009-03-03 23:30:00 +00:00
Devang Patel