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9053 Commits

Author SHA1 Message Date
Victor Hernandez
b9768b0731 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:42:15 +00:00
Evan Cheng
8c7ecaf524 Implement cond ? -1 : 0 with sbb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:00:44 +00:00
Dale Johannesen
5ed17ae92a Generate DEBUG_VALUE comments on x86. The (limited) 
dbg.declare's we currently generate go through both
register allocators without perturbing the results.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:09:58 +00:00
Dan Gohman
26793ed974 Fix the bitcode reader to deserialize nuw/nsw/etc. bits properly in the case 
of a forward-reference, which doesn't use an "abbrev" encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:55:39 +00:00
Chris Lattner
d32e803073 wirte up .file and .file to the mc asmparser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:02:58 +00:00
Victor Hernandez
aee6a656e8 Revert r94260 until findDbgDeclare() is made more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 17:52:13 +00:00
Rafael Espindola
0173b74c55 Update test for darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94421 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 15:32:10 +00:00
Chris Lattner
5c78034bc8 we removed support for darwin8 tools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 07:43:40 +00:00
Rafael Espindola
f166ed7324 Fix PR6134. 
We are not emitting alignments on Darwin for "bar". Not sure what is the
correct way to do it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 02:27:39 +00:00
Daniel Dunbar
34b6ea6cef Attempt to unbreak test on Linux. Chris, please check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 00:54:13 +00:00
Chris Lattner
4e4af5978c just remove this test, it is not reduced, is not clear what its testing for and 
it is dying due to fragility in the asmprinter .s comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 19:23:09 +00:00
Chris Lattner
6d1041eee3 this test has been failing or a long time, just disable it for now to get 
back to green.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 19:13:39 +00:00
Chris Lattner
75f265fbbb fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 01:07:33 +00:00
Mon P Wang
6fb474bd3c It seems better to scalarize vectors of size 1 instead of widening them. 
Add support to widen SETCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 00:24:43 +00:00
Chris Lattner
abb992d6a3 change the canonical form of "cond ? -1 : 0" to be 
"sext cond" instead of a select.  This simplifies some instcombine
code, matches the policy for zext (cond ? 1 : 0 -> zext), and allows
us to generate better code for a testcase on ppc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 00:09:49 +00:00
Mon P Wang
eb38ebf15c Improved widening loads by adding support for wider loads if 
the alignment allows.  Fixed a bug where we didn't use a
vector load/store for PR5626.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 00:05:03 +00:00
Nick Lewycky
44540740ae Speculatively revert r94322 to see if it fixes darwin selfhost buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94331 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 20:32:12 +00:00
Chris Lattner
d668839cb9 third bug from PR6119: the xor dupe extension allows 
for arbitrary terminators in predecessors, don't assume
it is a conditional or uncond branch.  The testcase shows
an example where they can happen with switches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:21:31 +00:00
Nick Lewycky
dbeecede80 Teach DAE that even though it can't modify the function signature of an 
externally visible function, it can still find all callers of it and replace
the parameters to a dead argument with undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94322 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:19:34 +00:00
Chris Lattner
2dd7657a5b add an early out to ProcessBranchOnXOR to speed it up, 
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94321 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:16:25 +00:00
Chris Lattner
8231fd1e6c fix a crash in jump threading, PR6119 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94319 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 18:56:07 +00:00
Chris Lattner
818ff34bc0 implement a simple instcombine xform that has been in the 
readme forever.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 18:49:30 +00:00
Chris Lattner
52492ac0d0 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:17:14 +00:00
Eric Christopher
e9625cf698 Don't lower splat vector load to relative to the esp if the 
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:02:43 +00:00
Chris Lattner
63df4a4fec stop testing for invalid output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:45:28 +00:00
Chris Lattner
05f845314a emit .ascii and .asciz through MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:54:10 +00:00
Mon P Wang
e4a0a151a5 InstCombine should not fold sext/zext of a vector and a bitcast to a scalar to a sext/zext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:35:57 +00:00
Chris Lattner
4fe5d72765 remove this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94276 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 03:11:10 +00:00
Evan Cheng
796263464d Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 01:21:27 +00:00
Evan Cheng
4d03ca0702 Fix tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 01:19:28 +00:00
Victor Hernandez
b6aebc2f46 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:17:34 +00:00
Chris Lattner
12e555c36c teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:15:00 +00:00
Daniel Dunbar
8a3ee718cd Mark EH_RETURN64 as CodeGenOnly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 20:16:37 +00:00
Chris Lattner
7e02e52e9a make this less constrained, we want blank lines between globals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 19:51:08 +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
Chris Lattner
2116a4ee55 testcase for r94095 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94096 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 20:01:04 +00:00
Nick Lewycky
401f3258f6 Fix a crasher trying to fold each element in a comparison between two vectors 
if one of the vectors didn't have elements (such as undef). Fixes PR 6096.

Fix an issue in the constant folder where fcmp (<2 x %ty>, <2 x %ty>) would
have <2 x i1> type if constant folding was successful and i1 type if it wasn't.
This exposed a related issue in the bitcode reader.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94069 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 07:03:21 +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
Chris Lattner
213168ba46 emit basic block labels with mcstreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 07:24:05 +00:00
Chris Lattner
043c4e5c1d emit integer and fp zeros as (e.g.) .byte 0 instead of .space 1, 
for tidiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 07:19:19 +00:00
Chris Lattner
2dd245c469 signficant cleanups to EmitGlobalConstant (including streamerization 
of int initializers), change some methods to be static functions,
use raw_ostream::write_hex instead of a smallstring dance with 
APValue::toStringUnsigned(S, 16).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 07:11:32 +00:00
Devang Patel
42aafd7e57 If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93967 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 02:05:23 +00:00
Dan Gohman
cd9e155755 Fold (add x, shl(0 - y, n)) -> sub(x, shl(y, n)), to simplify some code 
that SCEVExpander can produce when running on behalf of LSR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 23:30:49 +00:00
Dan Gohman
2b98bd23cb Make SCEVAddRecExpr's getType return a pointer type when the add 
has a pointer member. This helps reduce unnecessary bitcasting
and uglygeps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93939 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 22:53:50 +00:00
Dan Gohman
8e1aa8edec Add nounwinds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93919 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 21:51:51 +00:00
Jakob Stoklund Olesen
35f0febcb6 Remove predicates when changing an add into an unpredicable mov. 
Since the mov is executed unconditionally, make sure that the add didn't have
any predicate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93909 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 21:08:28 +00:00
Evan Cheng
590d16be6f Do not extend extension results beyond the use of a PHI instruction at the start of a use block. A PHI use is expected to kill its source values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 19:45:51 +00:00
Chris Lattner
6113b3d323 add an MCAsmStreamer::EmitFill specialization of EmitFill that 
emits one directive instead of N.  Not doing this would be a
significant regression on the # bytes generated by .fill.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 18:52:28 +00:00
Chris Lattner
c0404b3715 optimize ~(~X >>s Y) --> (X >>s Y), patch by Edmund Grimley 
Evans!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 18:16:19 +00:00
Chris Lattner
41aa25a433 don't let asm-verbose break the check-next lines in these tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93869 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 06:39:54 +00:00