Commit Graph

3886 Commits

Author SHA1 Message Date
Eric Christopher
7672d04f77 Reapply 94059 while fixing the calling convention setup
for strcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94287 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-23 05:29:06 +00:00
Bob Wilson
8a23e0b07b Revert 94059. It is breaking the MultiSource/Benchmarks/Prolangs-C/bison
test on ARM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22 19:16:40 +00:00
Chris Lattner
e73a31f667 Stop building RTTI information for *most* llvm libraries. Notable
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94164 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22 06:49:46 +00:00
Dan Gohman
7979b72feb Revert LoopStrengthReduce.cpp to pre-r94061 for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94123 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-22 00:46:49 +00:00
Victor Hernandez
6c146eefbf DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 23:05:53 +00:00
Dan Gohman
eca35b76ce When inserting expressions for post-increment users which contain
loop-variant components, adds must be inserted after the increment.
Keep track of the increment position for this case, and insert
these adds in the correct location.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94110 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 23:01:22 +00:00
Dan Gohman
940bd3e236 Include IVUsers information in LSR's debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 22:46:32 +00:00
Dan Gohman
8b0ade3eb8 Prune the search for candidate formulae if the number of register
operands exceeds the number of registers used in the initial
solution, as that wouldn't lead to a profitable solution anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94107 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 22:42:49 +00:00
Dan Gohman
2f524587b6 Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 21:31:09 +00:00
Dan Gohman
a10756ee65 Re-implement the main strength-reduction portion of LoopStrengthReduction.
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.

It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 02:09:26 +00:00
Eric Christopher
ed1a4c7eab Add strcpy_chk -> strcpy support for "don't know" object size
answers.  This will update as object size checking gets better information.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94059 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 01:04:38 +00:00
Dan Gohman
d8d0b6a42c When doing address-mode sinking, expand the base register first, rather
than the scaled register. This makes it more likely that subsequent
AddrModeMatcher queries will match the new address the same way as the
old, instead of accidentally matching what had been the base register
as the new scaled register, and then failing to match the scaled register.
This fixes some problems with address-mode sinking multiple muls into a
block, which will be a lot more common with some upcoming
LoopStrengthReduction changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93935 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19 22:45:06 +00:00
Bob Wilson
a756b1d914 Fix a crash in scalarrepl for memcpy/memmove where the source and destination
are the same.  I had already fixed a similar problem where the source and
destination were different bitcasts derived from the same alloca, but the
previous fix still did not handle the case where both operands are exactly
the same value.  Radar 7552893.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93848 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19 04:32:48 +00:00
Owen Anderson
a81e241fcc Convert some of the dynamic opcode lookups into static ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93693 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-17 19:33:27 +00:00
Chris Lattner
972a46c96a 1) Use the new SimplifyInstructionsInBlock routine instead of the copy
in JT.

2) When cloning blocks for PHI or xor conditions, use
instsimplify to simplify the code as we go.  This allows us to 
squish common cases early in JT which opens up opportunities for
subsequent iterations, and allows it to completely simplify the
testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93253 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12 20:41:47 +00:00
Chris Lattner
797c440caf tidy up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12 02:07:50 +00:00
Chris Lattner
2249a0b1bd Teach jump threading to duplicate small blocks when the branch
condition is a xor with a phi node.  This eliminates nonsense
like this from 176.gcc in several places:

 LBB166_84:
        testl   %eax, %eax
-       setne   %al
-       xorb    %cl, %al
-       notb    %al
-       testb   $1, %al
-       je      LBB166_85
+       je      LBB166_69
+       jmp     LBB166_85

This is rdar://7391699



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12 02:07:17 +00:00
Chris Lattner
77beb479f5 some cleanup, and make it obvious that ProcessJumpOnPHI only works
on branches by renaming it and checking for a branch at the call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93208 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-11 23:41:09 +00:00
Chris Lattner
c2d1b6949c only factor from expressions whose uses are empty and whose
base is the right expression type.  This fixes PR5981.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-09 06:01:36 +00:00
Duncan Sands
54a57045eb Suppress an unused variable warning when assertions are off;
remove some trailing whitespace while there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-08 17:51:48 +00:00
Benjamin Kramer
66b581ef49 Use a do-while loop instead of while + boolean.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92912 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-07 13:50:07 +00:00
Eric Christopher
130063207d Move the object size intrinsic optimization to inst-combine and make
it work for any integer size return type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92853 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06 20:04:44 +00:00
Mikhail Glushenkov
0ecbdeb14f Formatting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-06 09:20:39 +00:00
Benjamin Kramer
8c65f6e71c Move remaining stuff to the isInteger predicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92771 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 21:05:54 +00:00
Benjamin Kramer
11acaa374c Convert a ton of simple integer type equality tests to the new predicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 20:07:06 +00:00
Dan Gohman
9fff2187a2 Set Changed properly after calling DeleteDeadPHIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 16:31:45 +00:00
Dan Gohman
321a813c53 Use do+while instead of while for loops which obviously have a
non-zero trip count. Use SmallVector's pop_back_val().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92734 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 16:27:25 +00:00
Chris Lattner
5f94af0f72 fix an infinite loop in reassociate building emacs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92679 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 04:55:35 +00:00
David Greene
cb33fd17cc Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:47 +00:00
David Greene
d241e38d26 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:44 +00:00
David Greene
163fb1f93e Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92622 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:39 +00:00
David Greene
7439239fca Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92620 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:33 +00:00
David Greene
f15826999b Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92619 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:30 +00:00
David Greene
a1fa76cb54 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92617 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:24 +00:00
David Greene
6a6b90ebd9 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92615 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:21 +00:00
David Greene
fe7fe6603f Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:19 +00:00
David Greene
bf7f78e625 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:17 +00:00
David Greene
971cc7e883 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92612 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:15 +00:00
David Greene
68d67fdf20 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92611 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:11 +00:00
David Greene
504c7d8973 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:09 +00:00
David Greene
f67ef318aa Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92609 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:06 +00:00
David Greene
d4c56fbc39 Change errs() to dbgs().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:27:04 +00:00
Devang Patel
44a29e066a Remove dead debug info intrinsics.
Intrinsic::dbg_stoppoint
 Intrinsic::dbg_region_start 
 Intrinsic::dbg_region_end 
 Intrinsic::dbg_func_start
AutoUpgrade simply ignores these intrinsics now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 01:10:40 +00:00
Mikhail Glushenkov
ed5cb593ef 80-col violations, trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04 07:55:25 +00:00
Chris Lattner
dffbef0d76 move instcombine to its own library, it's past time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04 06:23:24 +00:00
Chris Lattner
e4412c1f0b implement an instcombine xform needed by clang's codegen
on the example in PR4216.  This doesn't trigger in the testsuite,
so I'd really appreciate someone scrutinizing the logic for
correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04 06:03:59 +00:00
Chris Lattner
a0085af871 pull my debug hooks out, I'm done with this xform for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03 06:58:48 +00:00
Nick Lewycky
cccbe7e415 Small cleanups, refactor some duplicated code into a single method. No
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03 04:39:07 +00:00
Chris Lattner
56ba7a74b9 generalize the previous transformation to handle indexing into
arrays of structs and other arrays, so long as all the subsequent
indexes are constants.  This triggers frequently for stuff like:

@divisions = internal constant [29 x [2 x i32]] [[2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 1], [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 2], [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] zeroinitializer, [2 x i32] [i32 0, i32 2], [2 x i32] [i32 0, i32 1], [2 x i32] zeroinitializer, [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 0], [2 x i32] [i32 1, i32 1], [2 x i32] [i32 1, i32 2], [2 x i32] [i32 1, i32 2]], align 32 ; <[29 x [2 x i32]]*> [#uses=50]

	  %623 = getelementptr inbounds [29 x [2 x i32]]* @divisions, i64 0, i64 %619, i64 0 ; <i32*> [#uses=1]
	   %684 = icmp eq i32 %683, 999 

also for the "my_defs" table in 'gs', etc.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03 03:03:27 +00:00
Nick Lewycky
11ed0317bc Cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-03 00:55:31 +00:00