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23773 Commits

Author SHA1 Message Date
Duncan Sands
d3ca9fc998 Support for VAARG. As noted in a comment, this is 
wrong for types like x86 long double and i1, but
no worse than what is done in LegalizeDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 13:55:15 +00:00
Duncan Sands
7fc8ab81f5 Support for promoting select_cc operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 11:50:11 +00:00
Duncan Sands
f9516208e5 Revert the SelectionDAG optimization that makes 
it impossible to create a MERGE_VALUES node with
only one result: sometimes it is useful to be able
to create a node with only one result out of one of
the results of a node with more than one result, for
example because the new node will eventually be used
to replace a one-result node using ReplaceAllUsesWith,
cf X86TargetLowering::ExpandFP_TO_SINT.  On the other
hand, most users of MERGE_VALUES don't need this and
for them the optimization was valuable.  So add a new
utility method getMergeValues for creating MERGE_VALUES
nodes which by default performs the optimization.
Change almost everywhere to use getMergeValues (and
tidy some stuff up at the same time).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 10:19:09 +00:00
Evan Cheng
0ff39b3feb - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag. 
- Correctly handle memcpy from constant string which is zero-initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52891 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 07:31:25 +00:00
Chris Lattner
80c1a5622a Implement split and scalarize for SELECT_CC, fixing PR2504 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52887 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 02:43:01 +00:00
Nick Lewycky
a11e2eb845 Add a value range analysis that lazily computes ranges using ScalarEvolutions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52885 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 00:04:21 +00:00
Anton Korobeynikov
6d116bc7ce Revert (52748 and friends): 
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52884 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-29 17:57:03 +00:00
Anton Korobeynikov
28a2b54580 Start refactoring of asmprinters: provide a TAI hook, which will select a 'section kind' for a global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 13:45:57 +00:00
Anton Korobeynikov
4d580651b3 Unbreak 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:10:06 +00:00
Anton Korobeynikov
f0302cd1ae Temporary rever invalid commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:48 +00:00
Anton Korobeynikov
e51ab444f4 Move printing of module-level GVs into dedicated helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:32 +00:00
Anton Korobeynikov
31f98154a7 Use common naming convention 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52863 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:17 +00:00
Anton Korobeynikov
1ecf0eedc4 Factor out stuff into helper function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52862 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:01 +00:00
Anton Korobeynikov
36a5701ad7 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52861 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:44 +00:00
Anton Korobeynikov
75b6882d3c Remove X86SharedAsmPrinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52860 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:27 +00:00
Anton Korobeynikov
9136438b08 whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:09 +00:00
Anton Korobeynikov
1c4b5eaa46 Make intel asmprinter child of generic asmprinter, not x86 shared asm printer. This leads to some code duplication, which will be resolved later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52858 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:54 +00:00
Anton Korobeynikov
271329af24 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:35 +00:00
Anton Korobeynikov
b131b44443 Whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:18 +00:00
Chris Lattner
03a5707955 Really fix the bootstrap failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 06:24:50 +00:00
Chris Lattner
b746b82113 Add back the capability to include nul characters in strings with 
GetConstantStringInfo.  This will hopefully restore llvm-gcc to 
happy bootstrap land.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52851 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 05:33:32 +00:00
Chris Lattner
3284d42c17 Tighten up checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 04:37:04 +00:00
Dan Gohman
77455617fb When folding a bitcast into a load or store, preserve the alignment 
information of the original load or store, which is checked to be
at least as good, and possibly better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 00:45:22 +00:00
Seo Sanghyeon
fd6437f4f9 Fix GetMainExecutable. Patch by Sam Bishop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52847 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 22:55:30 +00:00
Evan Cheng
01b2e236b5 Looks like this condition is inverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52841 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 22:11:49 +00:00
Chris Lattner
97388469b1 implement some fixme's by making "autorenaming" in the value symbol table not 
thrash the heap with string stuff (e.g. utostr).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52838 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:26:26 +00:00
Chris Lattner
48cd712d4c simplify some code to avoid string thrashing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52837 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:25:24 +00:00
Anton Korobeynikov
8573986f30 Use StringSet instead of std::set<std::string> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:22:49 +00:00
Chris Lattner
bb0e248718 Add a new version of Module::getFunction that takes a const char* instead 
of a std::string.  This avoids copying the string to the heap in common
cases.  Patch by Pratik Solanki!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52834 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:09:10 +00:00
Devang Patel
42af887105 Add dominator info printer pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52829 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 16:43:21 +00:00
Anton Korobeynikov
b2931f29f3 Provide correct encoding for PPC LWARX instructions. 
Patch by Gary Benson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 16:10:20 +00:00
Bill Wendling
f0e9c56540 Reduce number of times .size() is called on a vector. Rename some variables to 
match normal naming scheme.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52820 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 07:13:44 +00:00
Owen Anderson
bffdf66b80 Use a SmallSet when we can to reduce memory allocations. 
This speeds up a particular testcase from 0.0302s to 0.0222s in LiveVariables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52819 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 07:05:59 +00:00
Owen Anderson
1360b7d8f8 Cache subregister relationships in a set in TargetRegisterInfo to allow faster lookups. 
This speeds up LiveVariables from 0.6279s to 0.6165s on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 06:56:04 +00:00
Chris Lattner
3648f9f0ae fix the regressions from Eric's patch by making GetConstantStringInfo 
tolerate a non-nul-terminated string, and handling a direct global 
reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52813 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:36:51 +00:00
Chris Lattner
07c68f9b6f simplify this check, GetConstantStringInfo validates that a 
global is constant already.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52812 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:18:41 +00:00
Chris Lattner
a534b0f7bf when linking globals, make sure to preserve the address space of the global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52810 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:10:24 +00:00
Bill Wendling
0ac1b6d768 Cruft left from patch revert...sorry. :-( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:32:08 +00:00
Bill Wendling
914c970899 Reverting broken patch r52803. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52806 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:27:56 +00:00
Owen Anderson
b827c26e1e Don't perform expensive queries checking for super and sub registers when we know that there aren't any. 
This speed up LiveVariables on instcombine at -O0 -g from 0.3855s to 0.3503s.  Look for more improvements in this area soon!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52804 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:22:50 +00:00
Bill Wendling
e6b6bae536 - Remove a use of std::vector. 
- Make sure that we're not recalculating the size of a vector
  that never changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52803 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 00:56:36 +00:00
Bill Wendling
305635abea Refactor the DebugInfoDesc stuff out of the MachineModuleInfo file. Clean up 
some uses of std::vector, where it's return std::vector by value. Yuck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 00:09:40 +00:00
Chris Lattner
f77e46be6d duncan points out that isOperationLegal includes a check for 
type legality.  Thanks Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 17:16:00 +00:00
Owen Anderson
8342cfff9a Don't create a whole new string just to copy the elements into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 17:06:02 +00:00
Matthijs Kooijman
f512281d61 Make LLVM compile on DragonFly BSD (PR2499). 
Patch by Hasso Tepper!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 10:36:58 +00:00
Bill Wendling
fc1fd54a34 Cleanup for unitialized types. Patch by Jean-Daniel Dupas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 08:32:05 +00:00
Chris Lattner
6521549188 "An improved Mach-O file type detection for sys::IdentifyFileType() 
This patch add supports for single architecture mach-o files (the current implementation only support Universal Binary), and solve the signature conflict between java class and Universal Binary magics.

Note that this function will always returned dynamic library for Universal Binaries (like the current implementation) because the binary type is not include in the file header."

Patch by Jean-Daniel Dupas!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 05:17:18 +00:00
Owen Anderson
aefacb5972 Reserve the size we'll need in advance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 04:47:41 +00:00
Dale Johannesen
b5dae00325 Fixes the last x86-64 test failure in compat.exp: 
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code.  The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing.  This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52750 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 01:51:13 +00:00
Eric Christopher
872a738775 Remove unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52749 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 01:19:35 +00:00
Eric Christopher
0d2b0aba42 Move GetConstantStringInfo to lib/Analysis. Remove 
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 00:31:12 +00:00
Chris Lattner
cda8875433 when we know the signbit of an input to uint_to_fp is zero, 
change it to sint_to_fp on targets where that is cheaper (and
visaversa of course).  This allows us to compile uint_to_fp to:

_test:
	movl	4(%esp), %eax
	shrl	$23, %eax
	cvtsi2ss	%eax, %xmm0
	movl	8(%esp), %eax
	movss	%xmm0, (%eax)
	ret

instead of:

	.align	3
LCPI1_0:					##  double
	.long	0	## double least significant word 4.5036e+15
	.long	1127219200	## double most significant word 4.5036e+15
	.text
	.align	4,0x90
	.globl	_test
_test:
	subl	$12, %esp
	movl	16(%esp), %eax
	shrl	$23, %eax
	movl	%eax, (%esp)
	movl	$1127219200, 4(%esp)
	movsd	(%esp), %xmm0
	subsd	LCPI1_0, %xmm0
	cvtsd2ss	%xmm0, %xmm0
	movl	20(%esp), %eax
	movss	%xmm0, (%eax)
	addl	$12, %esp
	ret




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 00:16:49 +00:00
Owen Anderson
6b098dee28 Remember which MachineOperand we were processing, so we don't have to scan the list to find it again later. 
This speeds up live intervals from 0.37s to 0.30s on instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 23:39:39 +00:00
Dan Gohman
48b0b882c7 Fix the text in an assert string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 22:14:43 +00:00
Evan Cheng
ab26227c8c - Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into a 
shift.
- Add a readme entry for a missing vector_shuffle optimization that results in
  awful codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52740 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:52:59 +00:00
Duncan Sands
041cde26ea Add support for expanding PPC 128 bit floats. 
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that.  I also added libcalls
for ppcf128 to i32 forms of FP_TO_XINT, since
they exist in libgcc and this case can certainly
occur (and does occur in the testsuite) - before
the i64 libcall was being used.  Also, the
XINT_TO_FP result seemed to be wrong when
the argument is an i128: the wrong fudge
factor was added (the i32 and i64 cases were
handled directly, but the i128 code fell
through to some generic softening code which
seemed to think it was i64 to f32!).  So I
fixed it by adding a fudge factor that I
found in my breakfast cereal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:24:48 +00:00
Chris Lattner
18e0459837 Implement JIT support for global aliases, patch by David Chisnall! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:21:35 +00:00
Evan Cheng
890aaa8710 Restore DeadArgElim back to 52570. It's breaking 447.dealII. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52736 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 18:10:09 +00:00
Chris Lattner
bc52cada09 Switch the PPC backend and target-independent JIT to use the libsystem 
InvalidateInstructionCache method instead of calling through
a hook on the JIT.  This is a host feature, not a target feature.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:18:44 +00:00
Chris Lattner
95f39009aa fix compilation errors in my previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52733 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:17:53 +00:00
Chris Lattner
93bb4aa0ce Add a new InvalidateInstructionCache method to sys::Memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52731 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:14:10 +00:00
Dan Gohman
44030ce66e SimpleInstructionSelector is here no more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52725 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:38:59 +00:00
Duncan Sands
11ac797f5e Add/complete support for integer and float 
select_cc and friends.  This code could be
factorized a bit but I'm not sure that it's
worth it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52724 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:34:21 +00:00
Duncan Sands
b58d211dbb Pacify gcc-4.3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52723 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:31:18 +00:00
Dan Gohman
fd4418fc9b Remove the OrigVT member from AtomicSDNode, as it is redundant with 
the base SDNode's VTList.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52722 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:07:49 +00:00
Mon P Wang
2887310630 Added MemOperands to Atomic operations since Atomics touches memory. 
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:15:39 +00:00
Matthijs Kooijman
ea9e516e86 Fix a (false) warning on darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:12:16 +00:00
Matthijs Kooijman
177058b4bd Fix some cosmetics in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:10:21 +00:00
Evan Cheng
e5334ea518 - Use O(1) check of basic block size limit. 
- Avoid speculatively execute vector ops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 07:50:12 +00:00
Chris Lattner
aa0bf52625 Fix PR2488, a case where we deleted stack restores too aggressively. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 05:59:28 +00:00
Evan Cheng
601ca4b434 Enable two-address remat by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 01:16:38 +00:00
Owen Anderson
e4f6ee590b Use push_back rather than operator[], which is incorrect in this cases. Unfortunately, this slow the testcase down a little bit, 
but only marginally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 01:05:05 +00:00
Dan Gohman
153d28a414 Append to the ActiveTimers std::vector before looking at the timer instead 
of after, so that any reallocation it does doesn't get counted for the pass
being timed.  This probably doesn't account for a timing discrepancy I was
looking into, but I'm fixing it anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 22:07:07 +00:00
Dale Johannesen
a68f9013f2 Add v2f32 (MMX) type to X86. Support is primitive: 
load,store,call,return,bitcast.  This is enough to
make call and return work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 22:01:44 +00:00
Owen Anderson
45e3958941 In ConstantArray::getAsString(), we know the size of the resultant string in advance so we can pre-allocate it and just fill in 
the entries.  This improves the time for the AsmPrinter on InstructionCombining.cpp from 0.4248s to 0.3370s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 21:58:29 +00:00
Owen Anderson
873e1b5642 Use SmallVector instead of std::vector for a minor compile time improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 21:44:59 +00:00
Dan Gohman
8dbe7f832e Revert 52645, the loop unroller changes. It caused a regression in 252.eon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 20:44:42 +00:00
Dan Gohman
2864ce6065 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 18:00:21 +00:00
Dan Gohman
78f39da1e8 Use const_cast instead of a C-style cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52684 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 17:47:37 +00:00
Matthijs Kooijman
1d9a277761 Commit the new DeadArgElim pass again, this time with the gcc bootstrap failures fixed. 
Also add a testcase to reproduce the gcc bootstrap failure in very much reduced form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 16:30:26 +00:00
Matthijs Kooijman
4e78908b94 Rename a few variables to be more consistent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52672 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 09:14:10 +00:00
Evan Cheng
9ef4ca2e81 If it's determined safe, remat MOV32r0 (i.e. xor r, r) and others as it is instead of using the longer MOV32ri instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52670 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 07:10:51 +00:00
Dan Gohman
46e803b3e6 Fix some signed vs. unsigned issues in array and vector handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52664 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 01:17:52 +00:00
Dan Gohman
2d0d59380a Add a note about a potential PIC optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52663 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 00:53:07 +00:00
Dan Gohman
db7991de75 Fixes for being compiled PIC on Linux. This isn't the most 
general solution possible, but it's a fairly simple one.
Based on a patch from the OpenGTL project!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52662 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 00:50:01 +00:00
Dan Gohman
51cd9d6e07 A brief survey of priority_queue usage in the tree turned this up 
as a questionable case, but the code isn't actually needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 23:51:16 +00:00
Bill Wendling
ebcba612b5 This situation can occur: 
,------.
    |      |
    |      v
    |   t2 = phi ... t1 ...
    |      |
    |      v
    |   t1 = ...
    |  ... = ... t1 ...
    |      |
    `------'

where there is a use in a PHI node that's a predecessor to the defining
block. We don't want to mark all predecessors as having the value "alive" in
this case. Also, the assert was too restrictive and didn't handle this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52655 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 23:41:14 +00:00
Dan Gohman
aabdded3b4 Use the new PriorityQueue in ScheduleDAGList too, which also 
needs arbitrary-element removal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52654 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 23:40:09 +00:00
Dan Gohman
cb41e6bf52 Use use_empty() instead of getNumUses(), avoiding a use list traversal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52651 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 23:23:49 +00:00
Owen Anderson
b3db9c90d2 Use getMBBEndIdx rather than assuming that the end is right after the last instruction in the block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52649 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 22:12:23 +00:00
Dan Gohman
73b43b9b54 Fix spelling and grammar in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 22:11:52 +00:00
Dan Gohman
55e283c71e Revamp the loop unroller, extending it to correctly update PHI nodes 
in the presence of out-of-loop users of in-loop values and the trip
count is not a known multiple of the unroll count, and to be a bit
simpler overall. This fixes PR2253.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52645 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 21:29:41 +00:00
Evan Cheng
d17e44769f Remove option used to debug stack coloring bugs. It's no longer needed since stack coloring is now bug free. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52644 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 21:24:32 +00:00
Evan Cheng
2e9f0b1a32 Disable PRE. It's breaking bootstrapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52643 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 21:22:35 +00:00
Dan Gohman
8cb8245cf1 Move a DenseMap's declaration outside of a loop, and just call 
clear() on each iteration. This avoids allocating and deallocating
all of DenseMap's memory on each iteration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52642 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 21:15:00 +00:00
Evan Cheng
99ec779a93 Instead of adding an isSS field to LiveInterval to denote stack slot. Use top bit of 'reg' instead. If the top bit is set, than the LiveInterval represents a stack slot live interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52639 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 21:03:19 +00:00
Wojciech Matyjewicz
300c6c5167 First step to fix PR2088. Implement routine to compute the 
multiplicative inverse of a given number. Modify udivrem to allow input and 
output pairs of arguments to overlap. Patch is based on the work by Chandler
Carruth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52638 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 19:39:50 +00:00
Dan Gohman
180c1691c7 Update the .cvs files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52637 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 18:43:26 +00:00
Dan Gohman
ebb5a971d9 Fix the types for NumElements variables, and add a comment 
explaining why empty array constants use ValID::createUndef().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52636 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 18:40:28 +00:00
Owen Anderson
b70a571c99 Tighten the conditions under which we do PRE, remove some unneeded code, and correct our preserved analyses list, since we 
do now change the CFG by splitting critical edges during PRE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52631 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 17:49:45 +00:00
Chris Lattner
2a6a645709 minor tidying of comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52630 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 17:11:23 +00:00
Dan Gohman
2f27e174a9 Remove two convenience constructors because they're now private, and the 
private implementation doesn't really need the convenience.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52629 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 16:48:17 +00:00
Dan Gohman
7894ea75b5 Use std::copy instead of a loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 16:45:24 +00:00
Dan Gohman
1a203571ca More changes from Chris' review: simplify getIndices and avoid 
copying its return value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52627 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 16:39:44 +00:00
Dan Gohman
0a4627d71f Duncan pointed out this code could be tidied. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52624 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 15:29:14 +00:00
Duncan Sands
e9c80f4d57 Port some integer multiplication fixes from LegalizeDAG. 
Bail out with an error if there is no libcall available
for the given size of integer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52622 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 15:15:44 +00:00
Duncan Sands
4a307ecce6 Support for expanding the result of EXTRACT_ELEMENT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52621 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 15:08:15 +00:00
Duncan Sands
ab09b7e8f3 Cleanup up LegalizeTypes handling of loads and 
stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52620 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 14:19:45 +00:00
Owen Anderson
ae18bd4246 At Chris' suggestion, move the liveness and worklist datastructures into 
instance variables so they can be allocated just once, and reuse the worklist
as the dead list as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52618 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-23 06:13:12 +00:00
Dan Gohman
cbfe5bbe88 Improve LSR's dead-phi detection to handle use-def cycles 
with more than two nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 20:44:02 +00:00
Dan Gohman
9b78763fce Use Loop::block_iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 20:18:58 +00:00
Dan Gohman
6c459a28ec Generalize createSCEV to be able to form SCEV expressions from 
ConstantExprs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:56:46 +00:00
Dan Gohman
17f1972c77 Use SCEVAddRecExpr::isAffine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:23:09 +00:00
Dan Gohman
09d3fdc254 Remove unnecessary #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:21:26 +00:00
Dan Gohman
11f6d3b478 Move a few more SCEVExpander methods out-of-line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 19:09:18 +00:00
Chris Lattner
963a97f1a3 Fix PR2369 by making scalarrepl more careful about promoting 
structures.  Its default threshold is to promote things that are
smaller than 128 bytes, which is sane.  However, it is not sane
to do this for things that turn into 128 *registers*.  Add a cap
on the number of registers introduced, defaulting to 128/4=32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 17:46:21 +00:00
Duncan Sands
69bfb15ecd Make custom lowering of ADD work correctly. This 
fixes PR2476; patch by Richard Osborne.  The same
problem exists for a bunch of other operators, but
I'm ignoring this because they will be automagically
fixed when the new LegalizeTypes infrastructure lands,
since it already solves this problem centrally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-22 09:42:16 +00:00
Eli Friedman
5c1f172213 Fix for PR2479: correctly optimize expressions like (a > 13) & (a == 
15).

See also PR1800, which is about the signed case.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 23:36:13 +00:00
Dan Gohman
1adec83ae8 Use Instruction::eraseFromParent(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:08:46 +00:00
Dan Gohman
4d515d0b09 Use Function's arg_size() and size() methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:06:54 +00:00
Dan Gohman
5686752099 Simplify some getNode calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:06:07 +00:00
Dan Gohman
2f1d3108e4 canClobberPhysRegDefs shouldn't called without checking hasPhysRegDefs; 
check this with an assert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:05:24 +00:00
Dan Gohman
95df6b3603 Avoid creating a redundant zero APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52602 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:03:12 +00:00
Dan Gohman
317adcc9c6 Use clear() to zero an existing APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52601 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:02:15 +00:00
Dan Gohman
719de53742 Use back() instead of [size()-1]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 22:00:54 +00:00
Dan Gohman
0011dc4738 Use MachineBasicBlock::transferSuccessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52594 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 20:21:19 +00:00
Dan Gohman
933e51c5e3 Use static_cast instead of reinterpret_cast for casting void*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 20:17:03 +00:00
Chris Lattner
629c1a3f78 Fix warning when assertions disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52590 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:49:01 +00:00
Chris Lattner
9d2c9bd113 fix warning when assertions disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52589 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:48:22 +00:00
Chris Lattner
48a0eec1da fix warning when assertion disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:47:44 +00:00
Chris Lattner
a1aabe422f fix some warnings when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:47:03 +00:00
Dan Gohman
8d96144b0e Remove a redundant return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52585 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:34:57 +00:00
Dan Gohman
94d7a5f815 Remove ScheduleDAG's SUnitMap altogether. Instead, use SDNode's NodeId 
field, which is otherwise unused after instruction selection, as an index
into the SUnit array.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52583 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 19:18:17 +00:00
Dan Gohman
3627e34486 Add a priority queue class, which is a wrapper around std::priority_queue 
and provides fairly efficient removal of arbitrary elements. Switch
ScheduleDAGRRList from std::set to this new priority queue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52582 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 18:35:25 +00:00
Duncan Sands
a1ace76c70 Support for load/store of expanded float types. I 
don't know if a truncating store is possible here,
but added support for it anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52577 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 17:00:47 +00:00
Dan Gohman
4c8c83022b Change ScheduleDAG's SUnitMap from DenseMap<SDNode*, vector<SUnit*> > 
to DenseMap<SDNode*, SUnit*>, and adjust the way cloned SUnit nodes are
handled so that only the original node needs to be in the map.
This speeds up llc on 447.dealII.llvm.bc by about 2%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52576 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 15:52:51 +00:00
Evan Cheng
4ce138cc55 Enable PRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52574 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 07:26:53 +00:00
Evan Cheng
c3417609ae Undo spill weight tweak. Need to investigate the performance regressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52572 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 06:45:54 +00:00
Dan Gohman
16c6859651 Simplify some template parameterization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 01:08:22 +00:00
Evan Cheng
9f99b7c595 Back out Matthijs' DAE patches. It's miscompiling gcc driver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52570 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-21 00:31:44 +00:00
Evan Cheng
3e172254c1 Enhanced heuristic to determine the *best* register to spill. Instead of picking the register with the lowest spill weight. Consider (up to) 2 additional registers with spill weights that are close to the lowest spill weight. The one with fewest defs and uses that conflicts with the current interval (weighted by loop depth) is the spill candidate. 
This is not always a win, but there are much more wins than loses and wins tend to be more noticeable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52554 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 21:45:16 +00:00
Duncan Sands
78cd649ad3 Share some code that is common between integer and 
float expansion (and sometimes vector splitting too).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52548 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 18:40:50 +00:00
Duncan Sands
4fc4fd657d Rename the operation of turning a float type into an 
integer of the same type.  Before it was "promotion",
but this is confusing because it is quite different
to promotion of integers.  Call it "softening" instead,
inspired by "soft float".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52546 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 17:49:55 +00:00
Dan Gohman
3461cc9e98 Clean up some uses of std::distance, now that we have allnodes_size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52545 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 17:15:19 +00:00
Dan Gohman
9614fcc640 Clean up a use of std::distance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52544 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 17:11:32 +00:00
Dan Gohman
60ea268645 Tidy up some commments and use the getAggregateOperand and 
getInsertedValueOperand accessors. Thanks Matthijs!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52543 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 16:41:17 +00:00
Dan Gohman
dfaceb49fc Fix the conditions under which SCCP should examine insertvalue 
instructions. Thanks to Matthijs Kooijman for pointing this out!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 16:39:44 +00:00
Matthijs Kooijman
7e43b3be88 80 column and trailing whitespace fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 15:34:07 +00:00
Matthijs Kooijman
df0891d2ff Don't let DeadArgumentElimination attempt to update callers when the return 
type wasn't changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52538 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 15:25:43 +00:00
Matthijs Kooijman
03d18569cb Don't let DeadArgElimination change the return type ({} into void and {T} 
into T) when no return values are actually dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52537 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-20 15:16:45 +00:00