Commit Graph

20890 Commits

Author SHA1 Message Date
Chris Lattner 5c62ba5fb8 Remove dead file and directory.
llvm-svn: 44720
2007-12-08 22:17:33 +00:00
Chris Lattner 8c8eaf6b92 reorganize header to separate into functional blocks.
llvm-svn: 44719
2007-12-08 21:59:32 +00:00
Chris Lattner 4063bd6eae split scalarization out to its own file.
llvm-svn: 44718
2007-12-08 20:30:28 +00:00
Chris Lattner 5c7c46baaf Split expansion out into its own file.
llvm-svn: 44717
2007-12-08 20:27:32 +00:00
Chris Lattner 029c816460 Split promotion support out to its own file.
llvm-svn: 44716
2007-12-08 20:24:38 +00:00
Chris Lattner 757d4beba9 Rename LegalizeDAGTypes.cpp -> LegalizeTypes.cpp
llvm-svn: 44715
2007-12-08 20:17:13 +00:00
Chris Lattner 92288147b6 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 d58954b040 add #include
llvm-svn: 44710
2007-12-08 19:03:30 +00:00
Chris Lattner e5256754e7 proper #include order.
llvm-svn: 44707
2007-12-08 19:00:03 +00:00
Gordon Henriksen 4b41a6f529 Adding a StringPool data structure, which GC will use.
llvm-svn: 44705
2007-12-08 17:07:47 +00:00
Chris Lattner ff87f05e43 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 2b07d8c5a0 Renaming:
isTriviallyReMaterializable -> hasNoSideEffects
  isReallyTriviallyReMaterializable -> isTriviallyReMaterializable

llvm-svn: 44702
2007-12-08 07:17:56 +00:00
Chris Lattner f47015bc74 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 f6a8156e4f implement __builtin_return_addr(0) on ppc.
llvm-svn: 44700
2007-12-08 06:59:59 +00:00
Chris Lattner a6c8297e84 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 4375173ba0 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 086b2c4537 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 92105ac0cd Doh
llvm-svn: 44694
2007-12-08 01:01:07 +00:00
Evan Cheng cd6913627e Fix a compilation warning.
llvm-svn: 44692
2007-12-08 01:00:31 +00:00
Evan Cheng ab87e735cd Fix a compilation warning.
llvm-svn: 44691
2007-12-08 01:00:21 +00:00
Bill Wendling fb706bc52b 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 b41d838d28 Add comment.
llvm-svn: 44686
2007-12-07 21:30:01 +00:00
Evan Cheng bfd373a53e Much improved v8i16 shuffles. (Step 1).
llvm-svn: 44676
2007-12-07 08:07:39 +00:00
Evan Cheng 85cdba29b0 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 c829e5cdf0 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 5eff4de9c8 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 8393dc7378 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 eedaf92fcf 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 b5fdfb9612 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 7c709a5d08 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 d2bbbabbfb simplify some code.
llvm-svn: 44655
2007-12-06 06:25:04 +00:00
Chris Lattner 42558bf664 implement the rest of the functionality from SelectionDAGLegalize::ScalarizeVectorOp
llvm-svn: 44654
2007-12-06 05:53:43 +00:00
Chuck Rose III cc2a661322 Adjust VStudio files to add JITMemoryManager files + include <cassert> from same.
llvm-svn: 44651
2007-12-06 02:03:01 +00:00
Chris Lattner 0ccb663cca move some ashr-specific code out of commonShiftTransforms into visitAShr.
llvm-svn: 44650
2007-12-06 01:59:46 +00:00
Dale Johannesen 05bbbda78a Fix PR1842.
llvm-svn: 44649
2007-12-06 01:43:46 +00:00
Chris Lattner 7f3587e344 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 dc351b94f9 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 7fc1d98353 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 d3d8017bcb 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 55d8c3f71b 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 5e224c32f4 add a note
llvm-svn: 44638
2007-12-05 23:05:06 +00:00
Chris Lattner ad05e17491 add a note
llvm-svn: 44637
2007-12-05 22:58:19 +00:00
Scott Michel 83d54c9ee0 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 abba5e218c 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 3b8a674469 Added canFoldMemoryOperand for PPC.
llvm-svn: 44623
2007-12-05 18:41:29 +00:00
Evan Cheng 8492bdeaa4 Update foldMemoryOperand.
llvm-svn: 44621
2007-12-05 18:36:37 +00:00
Chris Lattner de9bfcf67a fix warnings
llvm-svn: 44620
2007-12-05 18:32:18 +00:00
Chris Lattner 8292519705 allow this to build
llvm-svn: 44619
2007-12-05 18:30:11 +00:00
Neil Booth 06f20ea4ba Prior commit updated wrong if, apologies.
llvm-svn: 44614
2007-12-05 13:06:04 +00:00
Neil Booth 3ab004bca6 Handle zero correctly.
llvm-svn: 44613
2007-12-05 13:01:24 +00:00