578d8bfc3c
Another missing check for debug intrinsics.
...
llvm-svn: 66800
2009-03-12 17:42:45 +00:00
9cdb9bb3e5
Allow for switch values bigger than 64 bits.
...
llvm-svn: 66751
2009-03-12 01:20:06 +00:00
5a41b2def5
Fix some nondeterministic behavior when forwarding
...
from a switch table. Multiple table entries that
branch to the same place were being sorted by the
pointer value of the ConstantInt*; changed to sort
by the actual value of the ConstantInt.
llvm-svn: 66749
2009-03-12 01:00:26 +00:00
08ccba73a7
Skip interleaved debug info when fast-forwarding through
...
allocations. Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.
llvm-svn: 66716
2009-03-11 22:19:43 +00:00
38961d5bd6
I should definitely read make docs someday :(
...
llvm-svn: 66699
2009-03-11 20:40:15 +00:00
3b046d084e
Unbreak the build. Dunno, why it did not fail on mingw :(
...
llvm-svn: 66692
2009-03-11 20:16:05 +00:00
a09ba46ee3
Disable plugins / shared stuff generation on windows targets.
...
This fixes fallout from recent PIC/delibtoolize changes and unbreaks
build on cygming.
llvm-svn: 66686
2009-03-11 19:49:42 +00:00
900aaa3d1e
Don't consider debug intrinsics when checking
...
whether a callee to be inlined is a leaf.
llvm-svn: 66588
2009-03-10 22:20:02 +00:00
703703aacb
Removing a dead debug intrinsic shouldn't trigger
...
another instcombine pass if we weren't going to make
one without debug info.
llvm-svn: 66576
2009-03-10 21:19:49 +00:00
84fceff969
Ignore dbg info, while estimating size of jump through block.
...
llvm-svn: 66554
2009-03-10 18:00:05 +00:00
073e4d16c5
Do not attempt to do parial redundancy elimination on void values.
...
Also fixed a punctuation error in the header comment.
This fixes PR3775.
llvm-svn: 66542
2009-03-10 15:04:53 +00:00
1c94228de3
If a function is marked alwaysinline, it must be inlined (possibly for correctness). Do so even if the callee has dynamic alloca and the caller doesn't.
...
llvm-svn: 66539
2009-03-10 07:57:50 +00:00
04852aa933
Ignore debug info while evaluating function.
...
llvm-svn: 66490
2009-03-09 23:04:12 +00:00
f12436891e
Don't record the increment instruction; just recompute it from the Phi
...
if needed. This simplifies the code a little, and is needed for an
upcoming refactoring.
llvm-svn: 66479
2009-03-09 22:04:01 +00:00
4a1b0776b3
Remove llvm.dbg.global_variables also.
...
llvm-svn: 66471
2009-03-09 21:32:28 +00:00
b855164751
Fix a few more places where induction variable types were used
...
where memory access types are needed.
llvm-svn: 66470
2009-03-09 21:22:12 +00:00
5a4e31666d
Use ReplacedTy instead of recomputing the same value.
...
llvm-svn: 66469
2009-03-09 21:19:58 +00:00
34e52ddb7d
Use LoopInfo's getLoopLatch() instead of doing what it does manualy.
...
llvm-svn: 66467
2009-03-09 21:14:16 +00:00
70cc9875d8
Don't use an induction variable type as a memory access type.
...
Use VoidTy instead, to be properly conservative.
llvm-svn: 66463
2009-03-09 21:04:19 +00:00
917ffe4592
Factor out the code that determines the memory access type
...
of an instruction into a helper function.
llvm-svn: 66460
2009-03-09 21:01:17 +00:00
66f84e7a42
Add helper pass to remove llvm.dbg.declare intrinsics.
...
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
...
have to be done twice.
llvm-svn: 66449
2009-03-09 20:46:50 +00:00
b5001909b0
Delete the isOnlyStride argument, which is unused.
...
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
...
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
...
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,
...
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.
...
llvm-svn: 66384
2009-03-08 19:02:17 +00:00
9ec96d19e3
Fix comments, pointed out by Duncan Sands.
...
llvm-svn: 66381
2009-03-08 17:08:09 +00:00
fbed86a865
Mark function returns as noalias.
...
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
...
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
...
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
...
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.
...
llvm-svn: 66362
2009-03-08 03:37:35 +00:00
334268a211
Introduce a new MemTransferInst pseudo class, which is a common
...
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
...
"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
...
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
...
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
...
Lennart Augustsson!
llvm-svn: 66272
2009-03-06 16:52:18 +00:00
ed7228319a
While thinking about the one-definition-rule and trying
...
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.
...
llvm-svn: 66262
2009-03-06 07:03:54 +00:00
5aed7765b8
While hoisting instruction to speculatively execute simple bb, ignore dbg intrinsics.
...
llvm-svn: 66255
2009-03-06 06:00:17 +00:00
e6d1e8d0cc
this wasn't intended to go in.
...
llvm-svn: 66252
2009-03-06 05:42:30 +00:00
e3fc2d13be
Change various llvm utilities to use PrettyStackTraceProgram in
...
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.
...
llvm-svn: 66245
2009-03-06 03:51:30 +00:00
e8c6d3102d
Skip DbgInfoIntrinsic.
...
llvm-svn: 66244
2009-03-06 02:59:27 +00:00
fb1caf3e1f
Don't assign rank numbers to debug intrinsic "calls".
...
This is needed so debug info doesn't change codegen.
llvm-svn: 66235
2009-03-06 01:41:59 +00:00
fc507a1f9c
Revert 66224.
...
llvm-svn: 66233
2009-03-06 01:39:36 +00:00
d926aaa28f
Revert rev. 66167.
...
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.
...
llvm-svn: 66227
2009-03-06 00:56:43 +00:00
073ab5acab
Tweak the check for promotable alloca's to handle
...
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.
...
llvm-svn: 66224
2009-03-06 00:21:00 +00:00
0c970f94e9
Add "check/remove dbg var" helper routines.
...
llvm-svn: 66223
2009-03-06 00:19:37 +00:00
709d6ac46d
GlobalOpt only process non constant local GVs while optimizing global vars.
...
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.
...
llvm-svn: 66140
2009-03-05 06:31:26 +00:00
78ab338024
Fix another case where debug info was affecting
...
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.
...
llvm-svn: 66115
2009-03-05 01:08:35 +00:00
ad6b47377f
Fix another case where a dbg.declare meant something
...
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.
...
llvm-svn: 66083
2009-03-04 22:02:09 +00:00
df4226c0e2
Re-commit 65975 and a fix for the problem that
...
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.
...
llvm-svn: 66065
2009-03-04 20:50:23 +00:00
ae0035ee15
Add an assertion for a condition that's always true, and not
...
immediately obvious.
llvm-svn: 66062
2009-03-04 20:49:01 +00:00
a41bb40458
complete comment.
...
llvm-svn: 66055
2009-03-04 19:23:25 +00:00
b5b0c87be6
this wasn't intended to be committed.
...
llvm-svn: 66054
2009-03-04 19:22:30 +00:00
5c204c92a4
Fix PR3720 by properly propagating alignment information from memcpy/memmove
...
onto element accesses.
llvm-svn: 66053
2009-03-04 19:20:50 +00:00
845e582cbe
Revert unintended commmit.
...
llvm-svn: 66001
2009-03-04 02:09:48 +00:00
d71c20081c
Skip ptr-to-ptr bitcasts when counting in another case.
...
llvm-svn: 66000
2009-03-04 02:06:53 +00:00
c8b5a6ef7d
Always skip ptr-to-ptr bitcasts when counting,
...
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.
...
llvm-svn: 65994
2009-03-04 01:22:23 +00:00
0365d3b8b5
Make my earlier patch to skip debug intrinsics
...
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
...
caused them to be considered trivially dead. Fix this.
llvm-svn: 65979
2009-03-03 23:30:00 +00:00
09c3e8ec00
Instruction counters must skip the bitcasts that
...
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.
llvm-svn: 65976
2009-03-03 22:36:47 +00:00
b833ce74d8
Recursively remove dead argument while removing llvm.dbg.declare intrinsic.
...
llvm-svn: 65971
2009-03-03 21:31:02 +00:00
77456b7ab4
When removing a store to an alloca that has only one
...
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare. This is needed so
debug info doesn't affect codegen.
llvm-svn: 65970
2009-03-03 21:26:39 +00:00
7fcd6148f7
Remove accidental check-ins in r65960. :-(
...
llvm-svn: 65961
2009-03-03 19:25:16 +00:00
a68fc7af63
Use > instead of >=. We want to promote aggregates of 128-bytes.
...
llvm-svn: 65960
2009-03-03 19:18:49 +00:00
3e44bf3c4b
Reapply r65755, but reversing "<" to ">=".
...
llvm-svn: 65945
2009-03-03 12:12:58 +00:00
92b551bc2b
Fix a bunch of Doxygen syntax issues. Escape special characters,
...
and put @file directives on their own comment line.
llvm-svn: 65920
2009-03-03 02:55:14 +00:00
0192552340
Don't count DebugInfo instructions in another limit
...
(lest they affect codegen).
llvm-svn: 65915
2009-03-03 01:43:03 +00:00
e1bb2f86f9
When sinking an insn in InstCombine bring its debug
...
info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).
llvm-svn: 65910
2009-03-03 01:09:07 +00:00
cc40a61af7
Ignore debug info intrinsics.
...
llvm-svn: 65908
2009-03-03 00:28:44 +00:00
d50ebbdf3f
If branch conditions' one successor is dominating another non-latch successor then this loop's iteration space can not be restricted. In this example block bb5 is always executed.
...
llvm-svn: 65902
2009-03-02 23:39:14 +00:00
49d64927e1
Remove all dbg symobls, including those with circular references.
...
This is ugly, but I can't figure out a quick way out of this.
llvm-svn: 65889
2009-03-02 22:50:58 +00:00
5795a6091d
Fix PR3694: add an instcombine micro-optimization that helps
...
clean up when using variable length arrays in llvm-gcc.
llvm-svn: 65832
2009-03-02 09:18:21 +00:00
38eae046cf
Temporarily revert r65755. It was causing failures in the self-hosting
...
testsuite:
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/nancvt.ll
Failed with exit(1) at line 2
while running: grep 2147027116 nancvt.ll.tmp | count 3
count: expected 3 lines and got 0.
child process exited abnormally
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll
Failed with exit(1) at line 1
while running: llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll | opt -scalarrepl -instcombine | llc -march=x86 -mcpu=yonah | not /usr/bin/grep sub.*esp
subl $28, %esp
subl $28, %esp
child process exited abnormally
And more.
llvm-svn: 65758
2009-03-01 03:55:12 +00:00
e2bb5e31c8
hoist the check for alloca size up so that it controls CanConvertToScalar
...
as well as isSafeAllocaToScalarRepl.
llvm-svn: 65755
2009-03-01 02:26:47 +00:00
34709f84d8
Silence compiler warning about use of uninitialized variables (in reality these
...
are always set by reference on the path that uses them.) No functional change.
llvm-svn: 65621
2009-02-27 06:37:39 +00:00
d05f6870c3
Fix compiler warning about uninitialized variables. No functional change.
...
llvm-svn: 65620
2009-02-27 06:29:31 +00:00
264e46e1e9
Ignore dbg info intrinsics when folding conditional branch to
...
conditional branch predecessors.
llvm-svn: 65509
2009-02-26 06:56:37 +00:00
af618171f4
Fix PR3667
...
llvm-svn: 65464
2009-02-25 18:20:01 +00:00
5d9cc1763b
Don't block basic block with only SwitchInst to fold into predecessors.
...
llvm-svn: 65456
2009-02-25 15:34:27 +00:00
0bddac16a8
Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,
...
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.
llvm-svn: 65382
2009-02-24 18:55:53 +00:00
4f356bb9b0
Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simple
...
ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.
llvm-svn: 65364
2009-02-24 02:00:40 +00:00
5d1f458f0f
Generalize the ChangeCompareStride code, in preparation for
...
handling non-constant strides. No functionality change.
llvm-svn: 65363
2009-02-24 01:58:00 +00:00
e669884749
Preserve the DominanceFrontier analysis in the LoopDeletion pass.
...
llvm-svn: 65359
2009-02-24 01:21:53 +00:00
e288082644
While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite.
...
gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c
llvm-svn: 65353
2009-02-24 00:05:16 +00:00
f6e8c77e1c
Back out the change in 64918 that used sign-extensions when promoting
...
trip counts that use signed comparisons. It's not obviously the best
approach for preserving trip count information, and at any rate there
isn't anything in the tree right now that makes use of that, so for
now always using zero-extensions is preferable.
llvm-svn: 65347
2009-02-23 23:20:35 +00:00
e591411fd6
LoopDeletion needs to inform ScalarEvolution when a loop is deleted,
...
so that ScalarEvolution doesn't hang onto a dangling Loop*, which
could be a problem if another Loop happens to get allocated at the
same address.
llvm-svn: 65323
2009-02-23 17:10:29 +00:00
42987f528a
IndVarSimplify preserves ScalarEvolution. In the
...
-std-compile-opts sequence, this avoids the need for ScalarEvolution to
be rerun before LoopDeletion.
llvm-svn: 65318
2009-02-23 16:29:41 +00:00
3a86bcf134
Should reset DBI_Prev if DBI_Next == 0.
...
llvm-svn: 65314
2009-02-23 10:14:11 +00:00
dccfa0b26c
Changed option name from inline-threshold to basic-inline-threshold because
...
inline-threshold option is used by the inliner.
llvm-svn: 65309
2009-02-23 07:07:56 +00:00
Dale Johannesen