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Author SHA1 Message Date
Chris Lattner
a4a1b38dda this teestcase takes a long time to crash, remove it. If someone cares about this, they should file a bug, it's not doing any good as an xfail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93604 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:53:22 +00:00
Bob Wilson
516ab96de3 Run the pre-register allocation tail duplication pass by default. Remove 
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:29:50 +00:00
David Greene
ee9c595885 Fix PR6019. A load has more than one use if it feeds a bitconvert that 
has more than one use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:23:41 +00:00
Jim Grosbach
2be065a0e8 add testcase for r93564 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93567 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:27:37 +00:00
Anton Korobeynikov
12c71a53b5 Reenable tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93555 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:19:26 +00:00
Anton Korobeynikov
8396a17bc3 Temporary disable tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93501 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 02:09:27 +00:00
Anton Korobeynikov
74a265686d Add variable-width shifts for MSP430 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 22:09:38 +00:00
Dan Gohman
ff00a55517 Fix a codegen abort seen in 483.xalancbmk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 03:08:49 +00:00
Chris Lattner
dd8e09ad76 this test requires SSE, thanks to jyasskin for pointing this out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93360 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:51:41 +00:00
Evan Cheng
eb18812f75 Commit some changes I had managed to lose last night while refactoring the code. Avoid change use of PHI instructions because it's not legal to insert any instructions before them. 
This fixes PR6027.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93335 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:16:39 +00:00
Evan Cheng
81d22d87de Re-enable extension optimization pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93313 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:45:40 +00:00
Chris Lattner
2f8cc26be4 remove uses of deprecated functions, this generates slightly 
different BlockAddress labels, but nothing semantically important.

Add a FIXME that BlockAddress codegen is broken if the LLVM BB has 
an empty name (e.g. strip was run).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93303 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:30:49 +00:00
Evan Cheng
262a96edb4 Disable opt-ext pass to unbreak the build for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:51:43 +00:00
Jeffrey Yasskin
3aba5b1d60 Try to fix the ARM and PPC buildbots. The -mattr=vector-unaligned-mem 
flag doesn't exist there, and this is an x86 test.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:31:43 +00:00
Evan Cheng
7da9ecf967 Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg. 
For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:30:23 +00:00
Evan Cheng
d9d3a894b3 Add nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:29:23 +00:00
Duncan Sands
796248fdb1 Revert commit 93204, since it causes the assembler to barf 
on x86-64 linux with messages like this:
Error: Incorrect register `%r14' used with `l' suffix


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 17:46:16 +00:00
Dan Gohman
ad4f7a6882 Make several tests less fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93230 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:52:47 +00:00
Dan Gohman
f1b4d26e67 Reapply the MOV64r0 patch, with a fix: MOV64r0 clobbers EFLAGS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:42:54 +00:00
Evan Cheng
b85071c736 Add manual ISD::OR fastisel selection routines. TableGen is no longer autogen them after 93152 and 93191. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:59:27 +00:00
Evan Cheng
199c4240fe Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:03:29 +00:00
Chris Lattner
c31b0fc31f reduce this to a sensible testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:58:19 +00:00
David Greene
67df1a1d64 Shorten up this testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93187 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:50:35 +00:00
Evan Cheng
05920b8146 Revert 93158. It's breaking quite a few x86_64 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:13:41 +00:00
Jakob Stoklund Olesen
dd437ba15e Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded. 
This fixes PR5980.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93184 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:02:33 +00:00
Dan Gohman
e5dacc55ad Use a 32-bit and with implicit zero-extension instead of a 64-bit and if it 
has an immediate with at least 32 bits of leading zeros, to avoid needing to
materialize that immediate in a register first.

FileCheckize, tidy, and extend a testcase to cover this case.

This fixes rdar://7527390.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:58:34 +00:00
Dan Gohman
71c25b7d7b Re-instate MOV64r0 and MOV16r0, with adjustments to work with the 
new AsmPrinter. This is perhaps less elegant than describing them
in terms of MOV32r0 and subreg operations, but it allows the
current register to rematerialize them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:37:57 +00:00
Dan Gohman
3e8e4fd40c Generalize this check to avoid depending on a specific register assignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:24:27 +00:00
Dan Gohman
3bf224ba1d Make this test less trivial, to avoid spurious failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:23:56 +00:00
Evan Cheng
4b0345be30 Select an OR with immediate as an ADD if the input bits are known zero. This allow the instruction to be 3address-fied if needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:03:47 +00:00
David Greene
95eb2eeea6 Implement a feature (-vector-unaligned-mem) to allow targets to 
ignore alignment requirements for SIMD memory operands.  This
is useful on architectures like the AMD 10h that do not trap on
unaligned references if a status bit is twiddled at startup time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 16:29:42 +00:00
Jeffrey Yasskin
a77169dbeb Fix http://llvm.org/PR5729: x86-64 tail calls were putting their targets into 
R11, and then asserting that the target was in R9.  Since R9 isn't reserved for
the target anymore, and is used as an argument, this patch changes the
assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93065 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 18:56:43 +00:00
Dan Gohman
d199636039 Revert an earlier change to SIGN_EXTEND_INREG for vectors. The VTSDNode 
really does need to be a vector type, because
TargetLowering::getOperationAction for SIGN_EXTEND_INREG uses that type,
and it needs to be able to distinguish between vectors and scalars.

Also, fix some more issues with legalization of vector casts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 02:13:55 +00:00
Evan Cheng
306b4cafc1 Fix a critical bug in 64-bit atomic operation lowering for 32-bit. The results of the cmpxchg8b instructions are being thrown away when it branches back to the top of the checking loop. This means the loop always compares against the old value and this can result in a dead lock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93028 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 23:41:50 +00:00
Evan Cheng
6f279e0bda ReplaceAllUsesOfValueWith may delete other nodes that the one being replaced. Do not delete dead nodes again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-08 02:36:12 +00:00
Chris Lattner
bd1fccfad5 Fix rdar://7517201, a regression introduced by r92849. 
When folding a and(any_ext(load)) both the any_ext and the
load have to have only a single use.

This removes the anyext-uses.ll testcase which started failing
because it is unreduced and unclear what it is testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 21:59:23 +00:00
Evan Cheng
347a9cb507 APInt'fy TargetLowering::SimplifySetCC to fix PR5963. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 20:58:44 +00:00
Evan Cheng
17751dac3e Fix a minor regression from my dag combiner changes. One more place which needs to look pass truncates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 00:54:06 +00:00
Jakob Stoklund Olesen
d1862037f0 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92883 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-07 00:51:04 +00:00
Jakob Stoklund Olesen
30ac0467ce Add Target hook to duplicate machine instructions. 
Some instructions refer to unique labels, and so cannot be trivially cloned
with CloneMachineInstr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 23:47:07 +00:00
Evan Cheng
d40d03e1bd Teach dag combine to fold the following transformation more aggressively: 
(OP (trunc x), (trunc y)) -> (trunc (OP x, y))

Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.

This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-06 19:38:29 +00:00
Dan Gohman
d7d1a29003 Move this test from test/Transforms/IndVarSimplify to 
test/CodeGen/X86, as doesn't use -indvars, and it does use
llc -march=x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92799 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 22:52:54 +00:00
Bill Wendling
9f7c5c0dca Don't assign the shift the same type as the variable being shifted. This could 
result in illegal types for the SHL operator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 22:39:10 +00:00
Dan Gohman
aceba31b7a Delete useless trailing semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 17:55:26 +00:00
Dan Gohman
c12e979790 Make this test more portable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92514 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 21:23:34 +00:00
Dan Gohman
b75e8642a6 Add some tests and update an existing test to reflect recent 
x86 isel peeps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 20:53:54 +00:00
Anton Korobeynikov
39784e158a Fix invalid chain folding for memory variant of sdiv / udiv 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-04 10:31:54 +00:00
Chris Lattner
d0592d3be6 fix PR5930, allowing the asmprinter to emit difference between 
two labels as a truncate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:33:18 +00:00
Chris Lattner
2ef90d782e add PR# 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92451 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:10:58 +00:00
Chris Lattner
5099b31f98 differences between two blockaddress's don't cause a 
global variable initializer to require relocations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-03 18:09:40 +00:00