ad0ea2d430
Fix PR1146: parameter attributes are longer part of
...
the function type, instead they belong to functions
and function calls. This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll). Hopefully
a bitcode guru (who might that be? :) ) will fix it.
llvm-svn: 44359
2007-11-27 13:23:08 +00:00
cdb7e54ca7
Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops.
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llvm-svn: 44319
2007-11-25 22:41:31 +00:00
c00e8adfe0
Implement PR1822
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llvm-svn: 44318
2007-11-25 21:27:53 +00:00
185eeac0f8
Fix PR1816. If a bitcast of a function only exists because of a
...
trivial difference in function attributes, allow calls to it to
be converted to direct calls. Based on a patch by Török Edwin.
While there, move the various lists of mutually incompatible
parameters etc out of the verifier and into ParameterAttributes.h.
llvm-svn: 44315
2007-11-25 14:10:56 +00:00
893fe3bbd1
Fix PR1816, by correcting the broken definition of APInt::countTrailingZeros.
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llvm-svn: 44296
2007-11-23 22:42:31 +00:00
8a3e9d2bee
Ding dong, the DoesntAccessMemoryFns and
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OnlyReadsMemoryFns tables are dead! We
get more, and more accurate, information
from gcc via the readnone and readonly
function attributes.
llvm-svn: 44288
2007-11-23 19:30:27 +00:00
a8fbde3f78
Fix a bug where we'd try to find a scev value for a bitcast operand,
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even though the bitcast operand did not have integer type. This fixes
PR1814.
llvm-svn: 44286
2007-11-23 08:46:22 +00:00
1985d96dc9
Fix PR1817.
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llvm-svn: 44284
2007-11-22 23:47:13 +00:00
a915b538d3
Turn invokes of nounwind functions into ordinary calls.
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llvm-svn: 44280
2007-11-22 22:24:59 +00:00
1c97d752df
Readonly/readnone functions are allowed to throw
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exceptions, so don't turn invokes of them into
calls.
llvm-svn: 44278
2007-11-22 21:40:06 +00:00
c53b18362a
Fix PR1800 by correcting mistaken logic.
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llvm-svn: 44188
2007-11-16 06:04:17 +00:00
a77e74edba
Implement PR1796 and Transforms/SimplifyCFG/noreturn-call.ll
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by inserting unreachable after no-return calls.
llvm-svn: 44099
2007-11-14 06:19:25 +00:00
f150ace6cb
upgrade test
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llvm-svn: 44067
2007-11-13 21:42:48 +00:00
61ce4dff7a
Implement PR1786 by iterating between dead cycle elimination
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and simplifycfg in the rare cases when it is needed.
llvm-svn: 44044
2007-11-13 07:32:38 +00:00
f9c0fd7488
Tighten up a check for folding away loads from (newly constant) globals. This
...
fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and
rdar://5585488.
llvm-svn: 43949
2007-11-09 17:33:02 +00:00
19ca5c7021
Better check
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llvm-svn: 43897
2007-11-08 18:45:15 +00:00
8cf11aa330
Fix PR1780
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llvm-svn: 43893
2007-11-08 17:39:28 +00:00
d8515f8e80
Implement PR1777 by detecting dependent phis that
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all compute the same value.
llvm-svn: 43777
2007-11-06 21:52:06 +00:00
4decbc5002
Fix an abort in instcombine when folding creates a vector rem instruction.
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llvm-svn: 43743
2007-11-05 23:16:33 +00:00
b98d2050a2
If a value is incoming from outside the loop then the value does not need remapping and the value is never tracked through LastValueMap.
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llvm-svn: 43728
2007-11-05 19:32:30 +00:00
399d97987b
Change uses of getTypeSize to getABITypeSize, getTypeStoreSize
...
or getTypeSizeInBits as appropriate in ScalarReplAggregates.
The right change to make was not always obvious, so it would
be good to have an sroa guru review this. While there I noticed
some bugs, and fixed them: (1) arrays of x86 long double have
holes due to alignment padding, but this wasn't being spotted
by HasStructPadding (renamed to HasPadding). The same goes
for arrays of oddly sized ints. Vectors also suffer from this,
in fact the problem for vectors is much worse because basic
vector assumptions seem to be broken by vectors of type with
alignment padding. I didn't try to fix any of these vector
problems. (2) The code for extracting smaller integers from
larger ones (in the "int union" case) was wrong on big-endian
machines for integers with size not a multiple of 8, like i1.
Probably this is impossible to hit via llvm-gcc, but I fixed
it anyway while there and added a testcase. I also got rid of
some trailing whitespace and changed a function name which
had an obvious typo in it.
llvm-svn: 43672
2007-11-04 14:43:57 +00:00
2ed651ace7
Fix test/Transforms/DeadStoreElimination/PartialStore.ll, which had been
...
silently failing because of an incorrect run line for some time.
llvm-svn: 43605
2007-11-01 05:29:16 +00:00
6ab19ed78d
Fix InstCombine/2007-10-31-StringCrash.ll by removing an obvious
...
(in hindsight) infinite recursion. Simplify the code.
llvm-svn: 43597
2007-11-01 02:30:35 +00:00
74709473ed
Fix InstCombine/2007-10-31-RangeCrash.ll
...
llvm-svn: 43596
2007-11-01 02:18:41 +00:00
9f39660c20
Add support for folding binary operators with vector zero operands.
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llvm-svn: 43510
2007-10-30 19:00:49 +00:00
00860d7574
update testcase
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llvm-svn: 43452
2007-10-29 17:06:35 +00:00
c541c3ee15
Model stacksave and stackrestore as both writing memory, since we
...
don't model their dependences on allocas correctly. This fixes
PR1745.
llvm-svn: 43442
2007-10-29 05:47:52 +00:00
9a641510bd
Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling
...
zero-length fields better.
llvm-svn: 43427
2007-10-29 02:40:02 +00:00
4a15e04aee
Fix PR1752 and LoopSimplify/2007-10-28-InvokeCrash.ll: terminators
...
can have uses too. Wouldn't it be nice if invoke didn't exist? :)
llvm-svn: 43426
2007-10-29 02:30:37 +00:00
c62877e9da
Implement a couple of foldings for ordered and unordered comparisons,
...
implementing cases related to PR1738.
llvm-svn: 43289
2007-10-24 05:38:08 +00:00
ac5c93040f
Don't branch fold inline asm statements.
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llvm-svn: 43191
2007-10-19 21:09:55 +00:00
c0ced49a14
This test now passes.
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llvm-svn: 43183
2007-10-19 17:11:01 +00:00
9715d9fb59
Fix PR1735 and Transforms/DeadArgElim/2007-10-18-VarargsReturn.ll by
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fixing some obviously broken code :(
llvm-svn: 43141
2007-10-18 18:49:29 +00:00
9497767458
XFAIL for now.
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llvm-svn: 43111
2007-10-18 00:48:43 +00:00
b3dac3f5d9
Do not raise free() call that is called through invoke instruction.
...
llvm-svn: 43083
2007-10-17 20:12:58 +00:00
91ff13edcc
Apply "Instead of loading small c string constant, use integer constant directly" transformation while processing load instruction.
...
llvm-svn: 43070
2007-10-17 07:24:40 +00:00
ad618f66e6
Fix a bug in my patch last night that broke InstCombine/2007-10-12-Crash.ll
...
llvm-svn: 42920
2007-10-12 18:05:47 +00:00
3e99eb25ee
testcase for PR1728
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llvm-svn: 42890
2007-10-12 05:29:53 +00:00
899cc56612
Lower memcpy if it makes sense.
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llvm-svn: 42864
2007-10-11 17:21:57 +00:00
a69f987b66
Fix bug in updating dominance frontier after loop
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unswitch when frontier includes basic blocks that
are not inside loop.
llvm-svn: 42654
2007-10-05 22:29:34 +00:00
2a60ff1aeb
Relax unsafe use check. If there is one unconditional use inside the loop then it is safe to promote value even if there is another conditional use inside the loop.
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llvm-svn: 42493
2007-10-01 18:12:58 +00:00
7bba386f72
Handle multiple induction variables.
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This fixes PR714.
llvm-svn: 42309
2007-09-25 18:24:48 +00:00
87d7e8ebcb
Add transformation to update loop interation space. Now,
...
for (i=A; i<N; i++) {
if (i < X && i > Y)
do_something();
}
is transformed into
U=min(N,X); L=max(A,Y);
for (i=L;i<U;i++)
do_somethihg();
llvm-svn: 42299
2007-09-25 17:31:19 +00:00
9e30e1a3be
Do not promote null values because it may be unsafe to do so.
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llvm-svn: 42270
2007-09-24 20:02:42 +00:00
361e52f39c
Fix PR1692
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llvm-svn: 42209
2007-09-21 21:18:19 +00:00
416b9f0410
Testcase for PR1678.
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llvm-svn: 42171
2007-09-20 18:56:24 +00:00
e7be16a053
Excuse me.
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llvm-svn: 42158
2007-09-20 00:57:00 +00:00
eae7e7d00b
Fix optimization. %x = sub %x, %y does not imply that %y is zero.
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llvm-svn: 42157
2007-09-20 00:48:36 +00:00
464276f831
Avoid unsafe promotion.
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llvm-svn: 42149
2007-09-19 20:18:51 +00:00
49122edc98
rename test, it is obviously misspelled
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llvm-svn: 42108
2007-09-18 21:42:39 +00:00
Duncan Sands