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20992 Commits

Author SHA1 Message Date
Gordon Henriksen
53c34b1db9 Delete the CollectorNamePool if it should become empty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 03:35:18 +00:00
Gordon Henriksen
80a75bfae9 Adding a collector name attribute to Function in the IR. These 
methods are new to Function:

  bool hasCollector() const;
  const std::string &getCollector() const;
  void setCollector(const std::string &);
  void clearCollector();

The assembly representation is as such:

  define void @f() gc "shadow-stack" { ...

The implementation uses an on-the-side table to map Functions to 
collector names, such that there is no overhead. A StringPool is 
further used to unique collector names, which are extremely
likely to be unique per process.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 03:18:06 +00:00
Gordon Henriksen
afba8fe662 Reverting dtor devirtualization patch. 
_sabre_: it has a major problem: by the time ~Value is run, all of the "parts" of the derived classes have been destroyed
_sabre_: the vtable lives to fight another day

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 02:14:30 +00:00
Chris Lattner
d418239da7 fix some warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44756 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 01:51:22 +00:00
Chris Lattner
429c8221cc Fix a big problem in the recent dtor refactoring work, now it passes 2007-11-19-InlineAsm.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44755 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-10 01:48:29 +00:00
Gordon Henriksen
ed455c8fa2 Devirtualizing Value destructor (PR889). Patch by Pawel Kunio! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 22:46:10 +00:00
Chris Lattner
46a6e79e60 Duncan points out that the subtraction is unneeded since hte code 
knows the vector is not pow2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44740 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 17:56:34 +00:00
Chris Lattner
f88380ba2c Fix PR1782, patch by Wojtek Matyjewicz! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44733 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 07:35:13 +00:00
Chris Lattner
0097555e01 Add support for splitting the operand of a return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-09 00:06:19 +00:00
Bill Wendling
041b3f8356 Reverting 44702. It wasn't correct to rename them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44727 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 23:58:46 +00:00
Chris Lattner
eeaad40246 add many new cases to SplitResult. SplitResult now handles all the cases that LegalizeDAG does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 23:58:27 +00:00
Chris Lattner
50187864c1 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44725 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 23:24:26 +00:00
Chris Lattner
697b53e0b2 implement vector splitting of load, undef, and binops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 23:08:49 +00:00
Chris Lattner
e4af7b5a57 implement some methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44723 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 22:40:18 +00:00
Chris Lattner
13c6a1740c add scaffolding for splitting of vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 22:37:41 +00:00
Chris Lattner
e507c48eeb Remove dead file and directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44720 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 22:17:33 +00:00
Chris Lattner
7514646b31 reorganize header to separate into functional blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 21:59:32 +00:00
Chris Lattner
ee88813275 split scalarization out to its own file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44718 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 20:30:28 +00:00
Chris Lattner
cc663a8112 Split expansion out into its own file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44717 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 20:27:32 +00:00
Chris Lattner
08d1275cb8 Split promotion support out to its own file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44716 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 20:24:38 +00:00
Chris Lattner
524825b626 Rename LegalizeDAGTypes.cpp -> LegalizeTypes.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44715 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 20:17:13 +00:00
Chris Lattner
dff67f5770 Split the class definition of DAGTypeLegalizer out into a header. 
Leave it visibility hidden, but not in an anon namespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 20:16:06 +00:00
Chris Lattner
d185f64f82 add #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 19:03:30 +00:00
Chris Lattner
36d26c201f proper #include order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 19:00:03 +00:00
Gordon Henriksen
985cb62234 Adding a StringPool data structure, which GC will use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44705 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 17:07:47 +00:00
Chris Lattner
5aaddaa7b8 aesthetic changes, no functionality change. Evan, it's not clear 
what 'Available' is, please add a comment near it and rename it
if appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 07:22:58 +00:00
Bill Wendling
320c630c1b Renaming: 
isTriviallyReMaterializable -> hasNoSideEffects
  isReallyTriviallyReMaterializable -> isTriviallyReMaterializable


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 07:17:56 +00:00
Chris Lattner
d96428597b 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 07:04:58 +00:00
Chris Lattner
3fc027df4f implement __builtin_return_addr(0) on ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 06:59:59 +00:00
Chris Lattner
73944fb222 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 06:39:11 +00:00
Bill Wendling
b48519cbad 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44696 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:47:01 +00:00
Owen Anderson
5fc4abac3d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:37:09 +00:00
Evan Cheng
1713d8bcff Doh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:01:07 +00:00
Evan Cheng
7658445fa6 Fix a compilation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44692 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:00:31 +00:00
Evan Cheng
5a759616b6 Fix a compilation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44691 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-08 01:00:21 +00:00
Bill Wendling
0f940c95d4 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...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 21:42:31 +00:00
Evan Cheng
779ccea5b6 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44686 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 21:30:01 +00:00
Evan Cheng
8a86c3f3ae Much improved v8i16 shuffles. (Step 1). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 08:07:39 +00:00
Evan Cheng
dfb1561434 Add an option to control this heuristic tweak so I can test it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44671 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-07 00:28:32 +00:00
Evan Cheng
1076210ee3 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44669 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 22:14:22 +00:00
Dale Johannesen
e0e6fac5e9 Redo previous patch so optimization only done for i1. 
Simpler and safer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44663 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 17:53:31 +00:00
Evan Cheng
33faddc35d Turning simple splitting on. Start testing new coalescer heuristics as new llcbeta. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44660 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 08:54:31 +00:00
Chris Lattner
d3fd6d2b25 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. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44658 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:47:55 +00:00
Chris Lattner
e00cbad78d Actually, disable this code for now. More analysis and improvements to 
the X86 backend are needed before this should be enabled by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:44:31 +00:00
Chris Lattner
e70da20f9a 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44656 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 07:33:36 +00:00
Chris Lattner
c95ba44b30 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 06:25:04 +00:00
Chris Lattner
72b2df1f77 implement the rest of the functionality from SelectionDAGLegalize::ScalarizeVectorOp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44654 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 05:53:43 +00:00
Chuck Rose III
3012ac63d3 Adjust VStudio files to add JITMemoryManager files + include <cassert> from same. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44651 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 02:03:01 +00:00
Chris Lattner
348f665ee2 move some ashr-specific code out of commonShiftTransforms into visitAShr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44650 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 01:59:46 +00:00
Dale Johannesen
59f1e97ef3 Fix PR1842. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44649 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-12-06 01:43:46 +00:00