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20945 Commits

Author SHA1 Message Date
Chris Lattner
164d423f91 add many new cases to SplitResult. SplitResult now handles all the cases that LegalizeDAG does. 
llvm-svn: 44726
 2007-12-08 23:58:27 +00:00
Chris Lattner
6db5e91e16 Implement splitting support for store, allowing us to compile: 
%f8 = type <8 x float>

define void @test_f8(%f8* %P, %f8* %Q, %f8* %S) {
	%p = load %f8* %P		; <%f8> [#uses=1]
	%q = load %f8* %Q		; <%f8> [#uses=1]
	%R = add %f8 %p, %q		; <%f8> [#uses=1]
	store %f8 %R, %f8* %S
	ret void
}

into:

_test_f8:
	movaps	16(%rdi), %xmm0
	addps	16(%rsi), %xmm0
	movaps	(%rdi), %xmm1
	addps	(%rsi), %xmm1
	movaps	%xmm0, 16(%rdx)
	movaps	%xmm1, (%rdx)
	ret

llvm-svn: 44725
 2007-12-08 23:24:26 +00:00
Chris Lattner
b073361c3e implement vector splitting of load, undef, and binops. 
llvm-svn: 44724
 2007-12-08 23:08:49 +00:00
Chris Lattner
8942654140 implement some methods. 
llvm-svn: 44723
 2007-12-08 22:40:18 +00:00
Chris Lattner
cd7fc69c7c add scaffolding for splitting of vectors. 
llvm-svn: 44722
 2007-12-08 22:37:41 +00:00
Chris Lattner
92a284d220 Remove dead file and directory. 
llvm-svn: 44720
 2007-12-08 22:17:33 +00:00
Chris Lattner
558d101dbd reorganize header to separate into functional blocks. 
llvm-svn: 44719
 2007-12-08 21:59:32 +00:00
Chris Lattner
5e6bf4bc6f split scalarization out to its own file. 
llvm-svn: 44718
 2007-12-08 20:30:28 +00:00
Chris Lattner
b5925fda97 Split expansion out into its own file. 
llvm-svn: 44717
 2007-12-08 20:27:32 +00:00
Chris Lattner
633c76f607 Split promotion support out to its own file. 
llvm-svn: 44716
 2007-12-08 20:24:38 +00:00
Chris Lattner
39571d55bc Rename LegalizeDAGTypes.cpp -> LegalizeTypes.cpp 
llvm-svn: 44715
 2007-12-08 20:17:13 +00:00
Chris Lattner
424de81c2e Split the class definition of DAGTypeLegalizer out into a header. 
Leave it visibility hidden, but not in an anon namespace.

llvm-svn: 44714
 2007-12-08 20:16:06 +00:00
Chris Lattner
df7a006f45 add #include 
llvm-svn: 44710
 2007-12-08 19:03:30 +00:00
Chris Lattner
1fe38f35c1 proper #include order. 
llvm-svn: 44707
 2007-12-08 19:00:03 +00:00
Gordon Henriksen
e187dc4bfa Adding a StringPool data structure, which GC will use. 
llvm-svn: 44705
 2007-12-08 17:07:47 +00:00
Chris Lattner
12fca81026 aesthetic changes, no functionality change. Evan, it's not clear 
what 'Available' is, please add a comment near it and rename it
if appropriate.

llvm-svn: 44703
 2007-12-08 07:22:58 +00:00
Bill Wendling
d10837def7 Renaming: 
isTriviallyReMaterializable -> hasNoSideEffects
  isReallyTriviallyReMaterializable -> isTriviallyReMaterializable

llvm-svn: 44702
 2007-12-08 07:17:56 +00:00
Chris Lattner
e93a775a4d Fix a significant code quality regression I introduced on PPC64 quite 
a while ago.  We now produce:

_foo:
	mflr r0
	std r0, 16(r1)
	ld r2, 16(r1)
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

instead of:

_foo:
	mflr r0
	std r0, 16(r1)
	lis r0, 0
	ori r0, r0, 16
	ldx r2, r1, r0
	std r2, 0(r3)
	ld r0, 16(r1)
	mtlr r0
	blr 

for:

void foo(void **X) {
  *X = __builtin_return_address(0);
}

on ppc64.

llvm-svn: 44701
 2007-12-08 07:04:58 +00:00
Chris Lattner
e16166b78d implement __builtin_return_addr(0) on ppc. 
llvm-svn: 44700
 2007-12-08 06:59:59 +00:00
Chris Lattner
1024cda0bd refactor some code to avoid overloading the name 'usesLR' in 
different places to mean different things.  Document what the
one in PPCFunctionInfo means and when it is valid.

llvm-svn: 44699
 2007-12-08 06:39:11 +00:00
Bill Wendling
3c6bac9686 Incorporated comments from Evan and Chris: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056043.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056048.html

llvm-svn: 44696
 2007-12-08 01:47:01 +00:00
Owen Anderson
e3de18ac1d Fix several cache coherence bugs in MemDep/GVN that were found. Also add some (disabled) debugging code 
to make such problems easier to diagnose in the future, written by Duncan Sands.

llvm-svn: 44695
 2007-12-08 01:37:09 +00:00
Evan Cheng
fdd03d0589 Doh 
llvm-svn: 44694
 2007-12-08 01:01:07 +00:00
Evan Cheng
28c2b7e647 Fix a compilation warning. 
llvm-svn: 44692
 2007-12-08 01:00:31 +00:00
Evan Cheng
6bfc0cadf3 Fix a compilation warning. 
llvm-svn: 44691
 2007-12-08 01:00:21 +00:00
Bill Wendling
c08dedb060 Initial commit of the machine code LICM pass. It successfully hoists this: 
_foo:
        li r2, 0
LBB1_1: ; bb
        li r5, 0
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr 

to:

_foo:
        li r2, 0
        li r5, 0
LBB1_1: ; bb
        stw r5, 0(r3)
        addi r2, r2, 1
        addi r3, r3, 4
        cmplw cr0, r2, r4
        bne cr0, LBB1_1 ; bb
LBB1_2: ; return
        blr

ZOMG!! :-)

Moar to come...

llvm-svn: 44687
 2007-12-07 21:42:31 +00:00
Evan Cheng
c4db072c74 Add comment. 
llvm-svn: 44686
 2007-12-07 21:30:01 +00:00
Evan Cheng
34c7b35135 Much improved v8i16 shuffles. (Step 1). 
llvm-svn: 44676
 2007-12-07 08:07:39 +00:00
Evan Cheng
d9a07b1c9d Add an option to control this heuristic tweak so I can test it. 
llvm-svn: 44671
 2007-12-07 00:28:32 +00:00
Evan Cheng
4dc538449d Remove a bogus optimization. It's not possible to do a move to low element to a <8 x i16> or <16 x i8> vector. 
llvm-svn: 44669
 2007-12-06 22:14:22 +00:00
Dale Johannesen
80dd0c5141 Redo previous patch so optimization only done for i1. 
Simpler and safer.

llvm-svn: 44663
 2007-12-06 17:53:31 +00:00
Evan Cheng
d53f72dfb1 Turning simple splitting on. Start testing new coalescer heuristics as new llcbeta. 
llvm-svn: 44660
 2007-12-06 08:54:31 +00:00
Chris Lattner
64a1a9f502 third time around: instead of disabling this completely, 
only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)

llvm-svn: 44658
 2007-12-06 07:47:55 +00:00
Chris Lattner
bb5fb18af8 Actually, disable this code for now. More analysis and improvements to 
the X86 backend are needed before this should be enabled by default.

llvm-svn: 44657
 2007-12-06 07:44:31 +00:00
Chris Lattner
c467b49c96 implement a readme entry, compiling the code into: 
_foo:
	movl	$12, %eax
	andl	4(%esp), %eax
	movl	_array(%eax), %eax
	ret

instead of:

_foo:
	movl	4(%esp), %eax
	shrl	$2, %eax
	andl	$3, %eax
	movl	_array(,%eax,4), %eax
	ret

As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:

-       movl    8(%eax), %eax
-       shll    $2, %eax
-       andl    $1020, %eax
-       movl    (%esi,%eax), %eax
+       movzbl  8(%eax), %eax
+       movl    (%esi,%eax,4), %eax


-       shll    $2, %edx
-       andl    $1020, %edx
-       movl    (%edi,%edx), %edx
+       andl    $255, %edx
+       movl    (%edi,%edx,4), %edx

Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:

-       andl    $85, %ebx
-       addl    _bit_count(,%ebx,4), %ebp
+       shll    $2, %ebx
+       andl    $340, %ebx
+       addl    _bit_count(%ebx), %ebp

llvm-svn: 44656
 2007-12-06 07:33:36 +00:00
Chris Lattner
861df2f4e9 simplify some code. 
llvm-svn: 44655
 2007-12-06 06:25:04 +00:00
Chris Lattner
91251d1337 implement the rest of the functionality from SelectionDAGLegalize::ScalarizeVectorOp 
llvm-svn: 44654
 2007-12-06 05:53:43 +00:00
Chuck Rose III
cdc572968c Adjust VStudio files to add JITMemoryManager files + include <cassert> from same. 
llvm-svn: 44651
 2007-12-06 02:03:01 +00:00
Chris Lattner
1f2a96f9c1 move some ashr-specific code out of commonShiftTransforms into visitAShr. 
llvm-svn: 44650
 2007-12-06 01:59:46 +00:00
Dale Johannesen
8bc5d4be6a Fix PR1842. 
llvm-svn: 44649
 2007-12-06 01:43:46 +00:00
Chris Lattner
a7caf360c9 add a new ExecutionEngine::createJIT which can be used if you only want 
to create a JIT.  This lets you specify JIT-specific configuration items
like the JITMemoryManager to use.

llvm-svn: 44647
 2007-12-06 01:34:04 +00:00
Chris Lattner
e297cb5408 simplify creation of the interpreter, make ExecutionEngine ctor protected, 
delete one ExecutionEngine ctor, minor cleanup.

llvm-svn: 44646
 2007-12-06 01:08:09 +00:00
Evan Cheng
1d289d0146 Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate. 
llvm-svn: 44644
 2007-12-06 00:01:56 +00:00
Evan Cheng
9e69c0ada8 If both result of the {s|z}xt and its source are live out, rewrite all uses of the source with result of extension. 
llvm-svn: 44643
 2007-12-05 23:58:20 +00:00
Chris Lattner
3043dc44cd split the JIT memory management code out from the main JIT logic into its 
own JITMemoryManager interface.  There is no functionality change with 
this patch.

llvm-svn: 44640
 2007-12-05 23:39:57 +00:00
Chris Lattner
e3f1487574 add a note 
llvm-svn: 44638
 2007-12-05 23:05:06 +00:00
Chris Lattner
011d2aab51 add a note 
llvm-svn: 44637
 2007-12-05 22:58:19 +00:00
Scott Michel
a9a40d4347 Minor updates: 
- Fix typo in SPUCallingConv.td
- Credit myself for CellSPU work
- Add CellSPU to 'all' host target list

llvm-svn: 44627
 2007-12-05 21:23:16 +00:00
Duncan Sands
928143423b Commit 44487 broke bootstrap of llvm-gcc-4.2. It is 
not yet clear why, but in the meantime work around the
problem by making less use of readnone/readonly info.

llvm-svn: 44626
 2007-12-05 21:03:28 +00:00
Evan Cheng
27986f1ac7 Added canFoldMemoryOperand for PPC. 
llvm-svn: 44623
 2007-12-05 18:41:29 +00:00
Evan Cheng
aecb76bcc2 Update foldMemoryOperand. 
llvm-svn: 44621
 2007-12-05 18:36:37 +00:00
Chris Lattner
0914ad3008 fix warnings 
llvm-svn: 44620
 2007-12-05 18:32:18 +00:00
Chris Lattner
df5cd03710 allow this to build 
llvm-svn: 44619
 2007-12-05 18:30:11 +00:00
Neil Booth
054a756682 Prior commit updated wrong if, apologies. 
llvm-svn: 44614
 2007-12-05 13:06:04 +00:00
Neil Booth
b5afbd8e5a Handle zero correctly. 
llvm-svn: 44613
 2007-12-05 13:01:24 +00:00
Evan Cheng
abc6ab4765 MachineInstr can change. Store indexes instead. 
llvm-svn: 44612
 2007-12-05 10:24:35 +00:00
Evan Cheng
33ac3dd05f If a split live interval is spilled again, remove the kill marker on its last use. 
llvm-svn: 44611
 2007-12-05 09:51:10 +00:00
Evan Cheng
32a5877569 Clobber more bugs. 
llvm-svn: 44610
 2007-12-05 09:05:34 +00:00
Evan Cheng
a5f3ec9e03 Fix kill info for split intervals. 
llvm-svn: 44609
 2007-12-05 08:16:32 +00:00
Chris Lattner
a43f6b4a08 more scalarization 
llvm-svn: 44608
 2007-12-05 07:45:02 +00:00
Chris Lattner
e1b35fb035 scalarize vector binops 
llvm-svn: 44607
 2007-12-05 07:36:58 +00:00
Evan Cheng
1dc8e83707 - Mark last use of a split interval as kill instead of letting spiller track it. 
This allows an important optimization to be re-enabled.
- If all uses / defs of a split interval can be folded, give the interval a
  low spill weight so it would not be picked in case spilling is needed (avoid
  pushing other intervals in the same BB to be spilled).

llvm-svn: 44601
 2007-12-05 03:22:34 +00:00
Evan Cheng
8464a0bf00 Add a argument to storeRegToStackSlot and storeRegToAddr to specify whether 
the stored register is killed.

llvm-svn: 44600
 2007-12-05 03:14:33 +00:00
Scott Michel
871b3a4fd4 More stuff for CellSPU -- this should be enough to get an error-free 
compilation (no files missing). Test cases remain to be checked in.

llvm-svn: 44598
 2007-12-05 02:01:41 +00:00
Scott Michel
8a2cb11b05 Updated source file headers to llvm coding standard. 
llvm-svn: 44597
 2007-12-05 01:40:25 +00:00
Scott Michel
026ace10b2 Two missing files. 
llvm-svn: 44596
 2007-12-05 01:31:18 +00:00
Scott Michel
191775d31f Main CellSPU backend files checked in. Intrinsics and autoconf files 
remain.

llvm-svn: 44595
 2007-12-05 01:24:05 +00:00
Dale Johannesen
15712dc45a Handle 0 correctly in string->APFloat conversion. 
llvm-svn: 44594
 2007-12-05 01:10:19 +00:00
Evan Cheng
a8e7a09fef Remove a unsafe optimization. This fixes 401.bzip2. 
llvm-svn: 44587
 2007-12-04 23:57:55 +00:00
Scott Michel
512cb025cc More files in the CellSPU drop... 
llvm-svn: 44584
 2007-12-04 22:35:58 +00:00
Scott Michel
774da2e74c More of the Cell SPU code drop from "Team Aerospace". 
llvm-svn: 44582
 2007-12-04 22:23:35 +00:00
Evan Cheng
63d60199aa Spiller unfold optimization bug: do not clobber a reusable stack slot value unless it can be modified. 
llvm-svn: 44575
 2007-12-04 19:19:45 +00:00
Chris Lattner
914befbc8a Implement framework for scalarizing node results. This is sufficient 
to codegen this:

define float @test_extract_elt(<1 x float> * %P) {
	%p = load <1 x float>* %P
	%R = extractelement <1 x float> %p, i32 0
	ret float %R
}

llvm-svn: 44570
 2007-12-04 07:48:46 +00:00
Chris Lattner
eead86bbc5 start providing framework for scalarizing vectors. 
llvm-svn: 44569
 2007-12-04 07:29:51 +00:00
Evan Cheng
ffc584dd21 Discard split intervals made empty due to folding. 
llvm-svn: 44565
 2007-12-04 00:32:23 +00:00
Scott Michel
3996f647d2 More CellSPU files... more to follow. 
llvm-svn: 44559
 2007-12-03 23:14:43 +00:00
Scott Michel
c312b999e6 Makefile fragment for CellSPU. 
llvm-svn: 44558
 2007-12-03 23:12:49 +00:00
Scott Michel
34987128e0 First commit to CellSPU. More to follow 
llvm-svn: 44557
 2007-12-03 23:09:49 +00:00
Evan Cheng
0b5abc5fcb Bug fixes. 
llvm-svn: 44549
 2007-12-03 21:31:55 +00:00
Anton Korobeynikov
75a3208bb0 Regenerate 
llvm-svn: 44546
 2007-12-03 21:01:29 +00:00
Anton Korobeynikov
dcec56301a Fix fallout from my last patch: don't reject varargs functions :) 
llvm-svn: 44545
 2007-12-03 21:00:45 +00:00
Duncan Sands
1e2e4972ff Rather than having special rules like "intrinsics cannot 
throw exceptions", just mark intrinsics with the nounwind
attribute.  Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).

llvm-svn: 44544
 2007-12-03 20:06:50 +00:00
Chris Lattner
0c41f32943 update file comment. 
llvm-svn: 44543
 2007-12-03 19:43:18 +00:00
Anton Korobeynikov
3f14aef8e9 Regenerate 
llvm-svn: 44541
 2007-12-03 19:17:47 +00:00
Devang Patel
c47f68e747 If ExitValue operand is also defined in Loop header then 
insert new ExitValue after this operand definition.

This fixes PR1828.

llvm-svn: 44539
 2007-12-03 19:17:21 +00:00
Anton Korobeynikov
a19d61c50e More sanity checks for function types. 
Thanks goes to PyPy folks for generating broken stuff :)

llvm-svn: 44538
 2007-12-03 19:16:54 +00:00
Gordon Henriksen
8ef652160a Applying Anton's binmode fix to the other ofstream too. 
llvm-svn: 44535
 2007-12-03 14:50:37 +00:00
Anton Korobeynikov
2e3b17227f Sorry, typo :) 
llvm-svn: 44534
 2007-12-03 14:35:57 +00:00
Anton Korobeynikov
8c54cc8456 Open output file correctly. This is extremely important for 
windows-based hosts, where files are opened in text mode by default.

llvm-svn: 44533
 2007-12-03 14:28:26 +00:00
Evan Cheng
2f539edfe6 Typo 
llvm-svn: 44532
 2007-12-03 10:00:00 +00:00
Evan Cheng
df066bc833 Update kill info for uses of split intervals. 
llvm-svn: 44531
 2007-12-03 09:58:48 +00:00
Anton Korobeynikov
ad4a61ed0b Provide hook for _alloca to make JITing on Cygwin slightly happier :) 
llvm-svn: 44528
 2007-12-03 05:30:41 +00:00
Evan Cheng
58b387dfb0 Remove redundant foldMemoryOperand variants and other code clean up. 
llvm-svn: 44517
 2007-12-02 08:30:39 +00:00
Duncan Sands
14f11d6836 Integrate the readonly/readnone logic more deeply 
into alias analysis.  This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter.  These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function.  Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite.  To reduce the
chance of misuse it is now protected.

llvm-svn: 44487
 2007-12-01 07:51:45 +00:00
Evan Cheng
7b13aa1c75 Fix a bug where splitting cause some unnecessary spilling. 
llvm-svn: 44482
 2007-12-01 04:42:39 +00:00
Evan Cheng
79e8b92dc3 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0. 
llvm-svn: 44479
 2007-12-01 02:07:52 +00:00
Ted Kremenek
74fcbb87af Fixed subtle bug in Deserializer::JumpTo when jumping when the block-nesting 
information matching did not exactly match the underlying stream's scoping
information.

llvm-svn: 44470
 2007-11-30 22:45:05 +00:00
Evan Cheng
90c548af8e Do not fold reload into an instruction with multiple uses. It issues one extra load. 
llvm-svn: 44467
 2007-11-30 21:23:43 +00:00
Chris Lattner
c75545d4a8 chain update requests properly. 
llvm-svn: 44460
 2007-11-30 18:52:58 +00:00
Duncan Sands
97ddf89236 Small optimization of parameter attribute lookup. 
llvm-svn: 44458
 2007-11-30 18:20:58 +00:00