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4303 Commits

Author SHA1 Message Date
Evan Cheng
22a529990b If two instructions are both two-address code, favors (schedule closer to 
terminator) the one that has a CopyToReg use. This fixes
2006-05-11-InstrSched.ll with -new-cc-modeling-scheme.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 22:32:30 +00:00
Evan Cheng
ddde335cb7 Remove a poor scheduling heuristic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42443 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 19:37:35 +00:00
Evan Cheng
74d2fd8dd8 Trim some unneeded fields. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42442 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 19:24:24 +00:00
Dale Johannesen
72292f0712 Fix long double -> uint64 conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42440 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 18:44:17 +00:00
Dale Johannesen
4292d1c02a minor long double related changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 18:06:58 +00:00
Dan Gohman
9fda5be36b Make the checks for DW_FORM_data4 consistent with the others, and 
add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42435 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 16:50:28 +00:00
Dan Gohman
06ff4e67c4 Use 32-bit data directives for DW_FORM_data4 format data, even on 
targets with 64-bit addresses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 15:43:33 +00:00
Dale Johannesen
317096ab37 Add sqrt and powi intrinsics for long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42423 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-28 01:08:20 +00:00
Dan Gohman
82482944ed TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets 
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42419 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 23:12:31 +00:00
Gordon Henriksen
fc3282221f CollectorMetadata abstractly describes stack maps for a function. 
It includes:

 - location and of each safe point in machine code (identified by a
   label)
 - location of each root within the stack frame (identified by an
   offset), including the metadata tag provided to llvm.gcroot in
   the user program
 - size of the stack frame (for collectors which want to cheat on
   stack crawling :)
 - and eventually will include liveness

It is to be populated by back-ends during code-generation.

CollectorModuleMetadata aggregates this information across the
entire module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 22:18:46 +00:00
Gordon Henriksen
d9900c9442 My previous Registry.h header, as well as Collectors.h, which is the 
registry for dynamically-loaded garbage collection compiler plugins.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42415 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 19:34:27 +00:00
Evan Cheng
cd1c00cc65 Avoid inserting a live register more than once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42410 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 18:46:06 +00:00
Evan Cheng
64f638df56 Silence a compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42389 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 07:35:39 +00:00
Evan Cheng
2dc7a0e075 Boogs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42388 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 07:29:27 +00:00
Evan Cheng
a2ee2756f7 Be smarter about which node to force schedule. Reduce # of duplications + copies; Added statistics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42387 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 07:09:03 +00:00
Evan Cheng
6e4c46cea5 Backtracking only when it won't create a cycle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42384 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-27 00:25:29 +00:00
Dale Johannesen
693717fbe6 Make temporaries explicit to avoid premature 
destruction of compiler-created ones.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42383 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 23:20:33 +00:00
Evan Cheng
42d60274ea - Move getPhysicalRegisterRegClass() from ScheduleDAG to MRegisterInfo. 
- Added ability to emit cross class register copies to the BBRU scheduler.
- More aggressive backtracking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42375 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 21:36:17 +00:00
Dale Johannesen
2f42901dff Enable codegen for long double abs, sin, cos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42368 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 21:10:55 +00:00
Dale Johannesen
f41db2136f Fix f80 UNDEF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42359 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 17:26:49 +00:00
Evan Cheng
9efce638d3 Allow copyRegToReg to emit cross register classes copies. 
Tested with "make check"!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-26 06:25:56 +00:00
Dan Gohman
c3b0b5ca1d Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) and 
the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42297 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 15:10:49 +00:00
Evan Cheng
a6fb1b6743 Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-25 01:54:36 +00:00
Dan Gohman
81a148bd56 Don't emit .debug_line header data if there aren't any lines to put in it, 
such as will happen when .loc directives are used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42277 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:43:52 +00:00
Dan Gohman
44de9267c3 Move the Asm->EOL() call for EmitDebugARanges outside the #ifdef for 
consistency with the other currently empty sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42276 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:36:21 +00:00
Dan Gohman
8549636fcf Add support for emitting .file directives to set up file numbers for 
use with .loc directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42275 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 21:32:18 +00:00
Dan Gohman
189f80dc25 Add a routine for emitting .file directives, for setting up 
file numbers to use with .loc directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42272 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 20:58:13 +00:00
Dan Gohman
e40c7b0973 Use the correct result value type instead of using getValueType(0) 
in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42264 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 15:54:53 +00:00
Chris Lattner
9251f13b55 When emitting .set directives, make sure the EH and Debug labels can't conflict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42257 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-24 03:35:37 +00:00
Chris Lattner
b690a005c1 initialize isstore/isload fields in ctor, fixing PR1695 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42222 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-22 07:02:12 +00:00
Dale Johannesen
910993e8dc Change APFloat::convertFromInteger to take the incoming 
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers.  Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 22:09:37 +00:00
Chris Lattner
c369bd7c50 don't read Block after it is freed. This fixes PR1684 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 18:25:53 +00:00
Chris Lattner
dfe8934258 initialize SetCCResultContents, fixing PR1693 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 17:06:39 +00:00
Dale Johannesen
73328d14ac More long double fixes. x86_64 should build now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42155 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 23:55:34 +00:00
Dale Johannesen
f4d4832724 Fix longdouble -> uint conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42143 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 17:53:26 +00:00
Evan Cheng
713a98dee8 Use struct SDep instead of std::pair for SUnit pred and succ lists. First step 
in tracking physical register output dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42125 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 01:38:40 +00:00
Evan Cheng
e0480d2ec2 Fix a bogus splat xform: 
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42111 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 21:54:37 +00:00
Dale Johannesen
c7b21d520a Prevent crash on long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42103 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 18:36:59 +00:00
Bill Wendling
ce613280f9 Don't pass back a reference to a temporary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 09:10:16 +00:00
Bill Wendling
5f19cf5df8 The exception handling function info should be reset for each new 
function. The information isn't used heavily -- it's only used at the end
of exception handling emission -- so there's no need to cache it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42078 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 05:03:44 +00:00
Bill Wendling
6e19896999 Objective-C was generating EH frame info like this: 
"_-[NSString(local) isNullOrNil]".eh = 0
        .no_dead_strip  "_-[NSString(local) isNullOrNil]".eh

The ".eh" should be inside the quotes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42074 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 01:47:22 +00:00
Devang Patel
8feb1f4467 Do not hide APInt::dump() inside #ifndef NDEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42068 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 22:24:00 +00:00
Devang Patel
ffe3612af4 This is not ideal but unbreaks build failure. 
APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42047 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:03:03 +00:00
Chris Lattner
76c1b97e40 Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo 
Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42042 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 18:34:04 +00:00
Dale Johannesen
118cd9dbba Adjust per revew comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42002 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 16:51:49 +00:00
Dale Johannesen
9e3d3abd93 Remove the assumption that FP's are either float or 
double from some of the many places in the optimizers
it appears, and do something reasonable with x86
long double.
Make APInt::dump() public, remove newline, use it to
dump ConstantSDNode's.
Allow APFloats in FoldingSet.
Expand X86 backend handling of long doubles (conversions
to/from int, mostly).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41967 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 22:26:36 +00:00
Dan Gohman
92dfe2001e Remove isReg, isImm, and isMBB, and change all their users to use 
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:33:02 +00:00
Dan Gohman
cb648f90a2 Remove spurious consts. This fixes warnings with compilers that 
are strict about such things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41956 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:08:19 +00:00
Chris Lattner
3d6992fc7b Fix build problems on Cygwin (PR1652), patch by Patrick Walton. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41923 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 06:09:48 +00:00
Evan Cheng
6600377546 Bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41900 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 00:06:00 +00:00
Evan Cheng
6900132813 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41899 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:45:46 +00:00
Evan Cheng
05e69c1f23 Yet another getTargetNode variant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41898 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:39:49 +00:00
Evan Cheng
0d8d31674f Fixed a typo that's causing a missing kill marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:02:04 +00:00
Dale Johannesen
9d5f456077 Revise previous patch per review comments. 
Next round of x87 long double stuff.
Getting close now, basically works.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41875 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 03:30:33 +00:00
Evan Cheng
6d6d352ed9 Sometimes a MI can define a register as well as defining a super-register at the 
same time. Do not mark the "smaller" def as dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 22:34:47 +00:00
Dale Johannesen
3f6eb7419d Add APInt interfaces to APFloat (allows directly 
access to bits).  Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling 
(untested, probably does not work).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 18:32:33 +00:00
Bill Wendling
ef4a661725 Add a bool to indicate if we should set the "indirect encoding" bit in the Dwarf 
information for EH.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 17:20:55 +00:00
Duncan Sands
f7331b3dd7 Fold the adjust_trampoline intrinsic into 
init_trampoline.  There is now only one
trampoline intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41841 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 14:10:23 +00:00
Bill Wendling
d60da495cd The personality function on Darwin needs a global stub. We then refer to 
that global stub instead of doing the ".set" thingy we were doing before.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41838 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 08:27:17 +00:00
Evan Cheng
2d9823875a Observation of rematerialization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41809 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 22:11:18 +00:00
Chris Lattner
61c5ff460b Emit: 
cmpl    %eax, %ecx
        setae   %al
        movzbl  %al, %eax

instead of:

        cmpl    %eax, %ecx
        setb    %al
        xorb    $1, %al
        movzbl  %al, %eax

when using logical not of a C comparison.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 21:39:07 +00:00
Chris Lattner
87b51bc2b0 1. Don't call Value::getName(), which is slow. 
2. Lower calls to fabs and friends to FABS nodes etc unless the function has
   internal linkage.  Before we wouldn't lower if it had a definition, which
   is incorrect.  This allows us to compile:

define double @fabs(double %f) {
        %tmp2 = tail call double @fabs( double %f )
        ret double %tmp2
}

into:

_fabs:
        fabs f1, f1
        blr 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41805 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 21:15:22 +00:00
Dale Johannesen
907f28ce30 Implement misaligned FP loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41786 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-08 19:29:23 +00:00
Rafael Espindola
588af2fb99 Add support for having different alignment for objects on call frames. 
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41768 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 14:52:14 +00:00
Anton Korobeynikov
8806c7b1f5 Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register 
liveins and we let frontend solve type issue, not lowering code :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 11:39:35 +00:00
Owen Anderson
718cb665ca Add lengthof and endof templates that hide a lot of sizeof computations. 
Patch by Sterling Stein!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 04:06:50 +00:00
David Greene
af992f782f Constify to catch bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41751 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 19:46:46 +00:00
Dale Johannesen
43421b3dd7 Next round of APFloat changes. 
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double.  Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 18:13:44 +00:00
Anton Korobeynikov
325be7c608 Proper handle case, when aliasee is external weak symbol referenced only by alias itself. 
Also, fix a case, when target doesn't have weak symbols supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 17:21:48 +00:00
David Greene
04fa32f9aa Add instruction dump output. This helps find bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 16:36:39 +00:00
David Greene
2c17c4d8d9 Pluggable coalescers inplementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 16:18:45 +00:00
Evan Cheng
dd199d29b7 Fix a memory leak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 01:07:24 +00:00
Evan Cheng
f3bb2e65d1 Use pool allocator for all the VNInfo's to improve memory access locality. This reduces coalescing time on siod Mac OS X PPC by 35%. Also remove the back ptr from VNInfo to LiveInterval and other tweaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41729 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-05 21:46:51 +00:00
Duncan Sands
9886504384 Due to label merging, the last label for an invoke 
may be the same as the first label for the following
invoke.  Remove a micro-optimization which was wrong
in this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41720 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-05 14:12:46 +00:00
Duncan Sands
57810cdac4 Fix PR1628. When exception handling is turned on, 
labels are generated bracketing each call (not just
invokes).  This is used to generate entries in
the exception table required by the C++ personality.
However it gets in the way of tail-merging.  This
patch solves the problem by no longer placing labels
around ordinary calls.  Instead we generate entries
in the exception table that cover every instruction
in the function that wasn't covered by an invoke
range (the range given by the labels around the invoke).
As an optimization, such entries are only generated for
parts of the function that contain a call, since for
the moment those are the only instructions that can
throw an exception [1].  As a happy consequence, we
now get a smaller exception table, since the same
region can cover many calls.  While there, I also
implemented folding of invoke ranges - successive
ranges are merged when safe to do so.  Finally, if
a selector contains only a cleanup, there's a special
shorthand for it - place a 0 in the call-site entry.
I implemented this while there.  As a result, the
exception table output (excluding filters) is now
optimal - it cannot be made smaller [2].  The
problem with throw filters is that folding them
optimally is hard, and the benefit of folding them is
minimal.

[1] I tested that having trapping instructions (eg
divide by zero) in such a region doesn't cause trouble.
[2] It could be made smaller with the help of higher
layers, eg by having branch folding reorder basic blocks
ending in invokes with the same landing pad so they
follow each other.  I don't know if this is worth doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41718 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-05 11:27:52 +00:00
Evan Cheng
a34d395358 Fix for PR1632. EHSELECTION always produces a i32 value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-04 20:39:26 +00:00
Anton Korobeynikov
406452dce3 Silence warning while compiling with gcc 4.2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-02 22:11:14 +00:00
Anton Korobeynikov
9cc54f5867 Emit proper "secrel" directive, where possible. This fixes invalid asm syntax of debug info on mingw32. Also, cleanup 
some stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41675 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-02 22:07:21 +00:00
Evan Cheng
343013538f More tweaks to improve compile time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41669 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-01 02:03:17 +00:00
Dale Johannesen
c4dd3c3b51 Add mod, copysign, abs operations to APFloat. 
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat.  Remove double versions
of constructor and getValue from ConstantFPSDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41664 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 23:34:27 +00:00
Evan Cheng
fadfb5b102 std::map -> DenseMap for slight compile time benefit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41650 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 21:23:06 +00:00
Dale Johannesen
ee8476847d Revise per review of previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41645 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 17:03:33 +00:00
Evan Cheng
d4e4937b79 Remove an unnecessary element, saving 4 bytes per LiveInterval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41641 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 08:26:44 +00:00
Evan Cheng
c14b144ec3 Use std::map instead of a (potentially very sparse) array to track val# defined by copy from the other live range. Minor compile time win when number of val# is large. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41640 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 08:04:17 +00:00
Dale Johannesen
eaf089430e Enhance APFloat to retain bits of NaNs (fixes oggenc). 
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-31 04:03:46 +00:00
Evan Cheng
34c2a9f57c Try fold re-materialized load instructions into its uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-30 05:53:02 +00:00
Dale Johannesen
f04afdbb48 Change LegalFPImmediates to use APFloat. 
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41587 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-30 00:23:21 +00:00
Anton Korobeynikov
055c5449a4 Fix use of declaration inside case block 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41584 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-29 23:18:48 +00:00
Evan Cheng
7ecb38be0a Change LiveRange so it keeps a pointer to the VNInfo rather than an index. 
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41579 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-29 20:45:00 +00:00
Anton Korobeynikov
066f7b40f8 Lower FRAME_TO_ADDR_OFFSET to zero by default (if not custom lowered) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41578 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-29 19:28:29 +00:00
Dan Gohman
3e1a7aef17 Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by 
scheduling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41556 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-28 20:32:58 +00:00
Evan Cheng
1a66f0a4f2 Recover most of the compile time regression due to recent live interval changes. 
1. Eliminate the costly live interval "swapping".
2. Change ValueNumberInfo container from SmallVector to std::vector. The former
   performs slowly when the vector size is very large.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41536 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-28 08:28:51 +00:00
Dan Gohman
e9c8fa095e Make DAGCombiner's global alias analysis query more precise in the case 
where both pointers have non-zero offsets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 16:32:11 +00:00
Dan Gohman
5f43f92c69 If the source and destination pointers in an llvm.memmove are known 
to not alias each other, it can be translated as an llvm.memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 16:26:13 +00:00
Duncan Sands
6590b0457c There is an impedance matching problem between LLVM and 
gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target.  We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require.  I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!).  Instead we need
to append a full-blown catch-all to the end of each
selector.  The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc.  Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos.  Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 15:47:50 +00:00
Dan Gohman
81975f6dfd Add explicit keywords and remove spurious trailing semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41482 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-27 14:50:10 +00:00
Dale Johannesen
e6c1742914 Revise per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41409 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-26 01:18:27 +00:00
Dale Johannesen
87503a63d5 Add APFloat interface to ConstantFPSDNode. Change 
over uses in DAGCombiner.  Fix interfaces to work
with APFloats.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41407 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 22:10:57 +00:00
Chris Lattner
09ec1b0583 Allow target constants to be illegal types. The target should 
know how to handle them.  This fixes 
test/CodeGen/Generic/asm-large-immediate.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41388 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 01:00:22 +00:00
Chris Lattner
7df31dc89b Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41386 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 00:53:07 +00:00
Bill Wendling
cf4bb317ef The personality function might need to be declared as: 
.set  Lset0,___gxx_personality_v0-.
    .long Lset0

on some targets. Make it so!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41385 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 00:51:55 +00:00
Chris Lattner
48884cd80b rename isOperandValidForConstraint to LowerAsmOperandForConstraint, 
changing the interface to allow for future changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41384 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-25 00:47:38 +00:00
Dale Johannesen
12595d7b16 Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual. 
This means backing out the preceding change to Constants.cpp, alas.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41378 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-24 22:09:56 +00:00
Dale Johannesen
8bb369b807 Use APFloat internally for ConstantFPSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41372 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-24 20:59:15 +00:00
Anton Korobeynikov
2f597bd09e Perform correct codegen for eh_dwarf_cfa intrinsic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41316 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-23 07:21:06 +00:00
Andrew Lenharth
b753a9bb62 move this check. ppc outputs .no_dead_strip properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41286 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-22 19:33:11 +00:00
Dan Gohman
8d1bfad00b Minor cleanups to reduce some spurious differences between different 
scheduler implementations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41191 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-20 19:28:38 +00:00
Rafael Espindola
21485be444 Partial implementation of calling functions with byval arguments: 
*) The needed information is propagated to the DAG
 *) The X86-64 backend detects it and aborts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41179 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-20 15:18:24 +00:00
Evan Cheng
571c4788d5 Fold C ? 0 : 1 to ~C or zext(~C) or trunc(~C) depending the types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41163 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-18 05:57:05 +00:00
Evan Cheng
3e20bba5eb Avoid issue on 64-bit hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41143 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-17 18:02:22 +00:00
David Greene
fd273b6ed5 Fix GLIBCXX_DEBUG error of comparing two singular iterators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41139 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-17 15:13:55 +00:00
Evan Cheng
61bbbabe3d If dynamic_stackalloc alignment is > stack alignment, first issue an instruction to align the stack ptr before the decrement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41133 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-16 23:50:06 +00:00
Evan Cheng
4515779fa3 - If a dynamic_stackalloc alignment requirement is <= stack alignment, then the alignment argument is ignored. 
- *Always* round up the size of the allocation to multiples of stack
alignment to ensure the stack ptr is never left in an invalid state after a dynamic_stackalloc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41132 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-16 23:46:29 +00:00
Evan Cheng
bc165e436b Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41118 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-16 07:24:22 +00:00
Lauro Ramos Venancio
c90f08936d Implement FPOWI ExpandOp. 
Fix PR1287.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41112 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 22:13:27 +00:00
Evan Cheng
90a43c3ae3 If the source of a move is in spill slot, the reload may be folded to essentially a load from stack slot. It's ok to mark the stack slot value as available for reuse. But it should not be clobbered since the destination of the move is live. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41109 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 20:20:34 +00:00
Evan Cheng
b6ca4b370e - If a def is dead, do not spill it. 
- If the defs of a spilled rematerializable MI are dead after the spill store is deleted, delete
  the def MI as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:25:37 +00:00
Evan Cheng
dc5294fd83 Fix for PR1596: AdjustCopiesBackFrom() should conservatively check if any of its sub-registers may overlap with the interval of the copy that's being coalesced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41084 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 23:19:28 +00:00
Evan Cheng
c91f0b8068 If a MI's def is remat as well as spilled, and the store is later deemed dead, mark the def operand as isDead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41083 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 20:23:13 +00:00
Evan Cheng
fff3e191b9 If a spilled value is being reused and the use is a kill, that means there are 
no more uses within the MBB and the spilled value isn't live out of the MBB.
Then it's safe to delete the spill store.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41069 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 09:11:18 +00:00
Evan Cheng
dc6be19859 If a rematerializable def is not deleted, i.e. it is also spilled, check if the 
spilled value is available for reuse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41067 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 05:42:54 +00:00
Evan Cheng
430a7b0c94 Kill info update bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41064 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-14 01:56:58 +00:00
Evan Cheng
549f27d307 Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41060 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 23:45:17 +00:00
Evan Cheng
6047dd9280 Kill info update bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41043 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-13 07:12:23 +00:00
Evan Cheng
ccb36a4f1b No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41024 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-12 01:26:19 +00:00
Evan Cheng
4f8ff168de Code to maintain kill information during register coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41016 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-11 00:59:19 +00:00
Christopher Lamb
8b165731bc Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41005 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 21:11:55 +00:00
Dan Gohman
25ac7e8364 Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to 
use an intptr ValueType instead of i32 for the index operand in
getCopyToParts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40987 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 14:59:38 +00:00
Rafael Espindola
594d37e21a propagate struct size and alignment of byval arguments to the DAG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40986 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-10 14:44:42 +00:00
Chris Lattner
b31e91cb16 unbreak the build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40976 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-09 23:55:17 +00:00
Evan Cheng
a86e347f02 Bug fix. ~1U marks the val# dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40975 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-09 23:14:39 +00:00
Dale Johannesen
ab081c7195 Update per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40965 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-09 17:27:48 +00:00
Dale Johannesen
5411a3937f long double 9 of N. This finishes up the X86-32 bits 
(constants are still not handled).  Adds ConvertActions
to control fp-to-fp conversions (these are currently
defaulted for all other targets, so no changes there).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-09 01:04:01 +00:00
Scott Michel
c1513d24ea If a target really needs to custom lower constants, it should be allowed 
to do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40955 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 23:23:31 +00:00
Evan Cheng
24c2e5cf7e Adding kill info to val#. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40925 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 07:03:29 +00:00
Evan Cheng
a141cfe5b2 Clean up and bug fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 05:56:18 +00:00
Evan Cheng
8df786012d - Each val# can have multiple kills. 
- Fix some minor bugs related to special markers on val# def. ~0U means
  undefined, ~1U means dead val#.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40916 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 03:00:28 +00:00
Evan Cheng
51cbf3c980 Remove a dead assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40914 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-08 01:00:21 +00:00
Evan Cheng
a8d94f1315 - LiveInterval value#'s now have 3 components: def instruction #, 
kill instruction #, and source register number (iff the value# is defined by a
copy).
- Now def instruction # is set for every value#, not just for copy defined ones.
- Update some outdated code related inactive live ranges.
- Kill info not yet set. That's next patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40913 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 23:49:57 +00:00
David Greene
7e23146ab9 Add a missing forward declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40896 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-07 16:34:05 +00:00
Chris Lattner
914ce4508d Fix a regression compiling 2005-05-11-Popcount-ffs-fls with the CBE, 
introduced by chandler's patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40864 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 16:36:18 +00:00
Christopher Lamb
98363225a3 Implement review feedback. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40863 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-06 16:33:56 +00:00
Reid Spencer
181b6c9cb5 Fix minor doxygen nits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40854 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 20:06:04 +00:00
Chris Lattner
e76fad2ceb shorten this name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-05 18:45:33 +00:00
Chandler Carruth
6994040a95 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:51:18 +00:00
Dan Gohman
61e729e2e9 More explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40757 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 21:21:54 +00:00
Chris Lattner
b15e49597f don't redefine a parameter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 18:08:16 +00:00
Evan Cheng
33d5595d66 Do not emit copies for physical register output if it's not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 05:29:38 +00:00
Scott Michel
335f4f7788 Style police: Expand the tabs to spaces! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 02:22:46 +00:00
Evan Cheng
8409747efa Instead of adding copyfromreg's to handle physical definitions. Now isel can 
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)

Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)

And let scheduledag emit the move from X86::EAX to a virtual register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 00:28:15 +00:00
Evan Cheng
21b3bf0650 Bugs: missing partial uses and redundant partial defs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 20:18:21 +00:00
Lauro Ramos Venancio
f3c13c82e3 Expand unaligned loads/stores when the target doesn't support them. (PR1548) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40682 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 19:34:21 +00:00
David Greene
52eec54820 New CallInst interface to address GLIBCXX_DEBUG errors caused by 
indexing an empty std::vector.

Updates to all clients.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40660 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-01 03:43:44 +00:00
Evan Cheng
3b1f55ea24 simpleregistercoalescing -> regcoalescing. It's too long for me to handle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40654 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-31 22:37:44 +00:00
Scott Michel
910b66d8d6 - Allow custom lowering for CTPOP, CTTZ, CTLZ. 
- Fixed an existing unexpanded tab.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40605 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 21:00:31 +00:00
Dan Gohman
be444ed6db Fix a bug in getCopyFromParts turned up in the testcase for PR1132. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 19:09:17 +00:00
Dan Gohman
286d56935c Print a space between the comment character and the basic block name, 
for prettiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40593 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 15:06:25 +00:00
Duncan Sands
36397f5034 Support for trampolines, except for X86 codegen which is 
still under discussion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40549 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 12:58:54 +00:00
Christopher Lamb
ada779fb11 Move subreg lowering pass to be right after regalloc, per feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40548 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 07:36:14 +00:00
Dan Gohman
559742c0ea Fix the alias analysis query in DAGCombiner to not add in two 
offsets. The SrcValueOffset values are the real offsets from the
SrcValue base pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 16:14:06 +00:00
Christopher Lamb
bab2474b64 Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40521 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:18:32 +00:00
Christopher Lamb
e24f8f1ec9 Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:12:07 +00:00
Christopher Lamb
557c3631d3 Add selection DAG nodes for subreg insert/extract. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:34:40 +00:00
Christopher Lamb
6f95014158 Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:00:46 +00:00
Christopher Lamb
844228a631 Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 03:33:13 +00:00
Evan Cheng
73a259a9d1 EmitAlignment() also emits optional fill value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:35:07 +00:00
Anton Korobeynikov
59db3ec935 Minor cleanup: 
- Split EH and debug infiormation
 - Make DwarfWriter more verbose in some cases


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 00:06:28 +00:00
Dan Gohman
dc9b3d0bb5 Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 23:00:27 +00:00
Dan Gohman
275769a77a Fix some uses of dyn_cast to be uses of cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40443 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 20:24:29 +00:00
Dan Gohman
c674a924d4 Don't assume that only Uses can be kills. Defs are marked as kills initially 
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 23:17:34 +00:00
Evan Cheng
8bd6035750 Added -print-emitted-asm to print out JIT generated asm to cerr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40123 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 21:56:13 +00:00
Duncan Sands
70d0bd1624 As pointed out by g++-4.2, the original code didn't do 
what it thought it was doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40044 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 07:31:58 +00:00
Evan Cheng
273288c888 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40022 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 23:34:48 +00:00
Dan Gohman
48613b930a It's not necessary to do rounding for alloca operations when the requested 
alignment is equal to the stack alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 16:29:46 +00:00
Evan Cheng
f99002c143 Dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 20:01:19 +00:00
Dan Gohman
07a96765da Fix comments about vectors to use the current wording. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:29:03 +00:00
Nick Lewycky
6d4b711e7f Fix the build. Patch from Holger Schurig. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov
2365f51ed0 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 14:06:15 +00:00
Dan Gohman
a346615d11 Fix the comment for LegalizeOp to more accurately reflect what it does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:14:11 +00:00
Dan Gohman
05d92fe7c4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:03:40 +00:00
Dale Johannesen
72f1596403 Modify previous patch per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:31:29 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Duncan Sands
bb821dd79b The type ids making up a filter are unsigned, and 
should be output as unsigned values.  Checked against
gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 13:51:39 +00:00
Evan Cheng
28bb462d4c Missed a couple of places where new instructions are added due to spill / restore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:17:18 +00:00
Duncan Sands
c3751600b7 Exception handling has been implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:59:20 +00:00
Duncan Sands
97b4ac8c84 If assertions are not enabled, we should return False here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:55 +00:00
Evan Cheng
b9591c667d No longer need to track last def / use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:44 +00:00
Evan Cheng
0c40d72b01 Fix for PR1545: Revamp code that update kill information due to register reuse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 05:28:39 +00:00
David Greene
67fcdf7f65 Make this work with GLIBCXX_DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:30 +00:00
Dan Gohman
743d3a7548 Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for 
the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:20:44 +00:00
Evan Cheng
5e2456c959 If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:52:20 +00:00
Evan Cheng
11ce02dbdd Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:50:43 +00:00
Dan Gohman
70fb1aefd5 Fix a bug in the folding of binary operators to undef. 
Thanks to Lauro for spotting this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 15:19:29 +00:00
Dan Gohman
d595b5f1f0 Fix the folding of undef in several binary operators to recognize 
undef in either the left or right operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 14:20:37 +00:00
Evan Cheng
af825c840e When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38485 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 07:08:32 +00:00
Evan Cheng
c63d391c9a Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 06:59:55 +00:00
Dan Gohman
d6fd1bc122 Preserve volatililty and alignment information when lowering or 
simplifying loads and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 22:18:38 +00:00
Dan Gohman
532dc2e1f2 Change getCopyToParts and getCopyFromParts to always use target-endian 
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38471 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:59:04 +00:00
Dan Gohman
93f81e2822 Initialize the IndexedModeActions array with memset before 
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:49:44 +00:00
Chris Lattner
e094f54f4c Fix this warning: 
DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'

oiy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 16:16:34 +00:00
Gabor Greif
e510b3af3a fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 12:00:59 +00:00
Evan Cheng
d2c5eb864f Teach if-conversion about instructions that were already predicated, e.g. conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37964 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:24:39 +00:00
Duncan Sands
f664e41b20 The exception handling intrinsics return values, 
so must be lowered to a value, not nothing at all.
Subtle point: I made eh_selector return 0 and
eh_typeid_for return 1.  This means that only
cleanups (destructors) will be run as the exception
unwinds [if eh_typeid_for returned 0 then it would
be as if the first catch always matched, and the
corresponding handler would be run], which is
probably want you want in the CBE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 14:46:23 +00:00
Duncan Sands
fccf0a2b25 Indexes into the list of filter ids cannot be output 
directly: they need to be turned into byte offsets
(often the same, but may not be if there are many
type infos).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37942 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 12:46:24 +00:00
Rafael Espindola
1aa7efbd2c Add the byval attribute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37940 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 10:57:03 +00:00
Duncan Sands
902919541f Remove propagateEHRegister in favour of a more limited 
fix, that is adequate while PR1508 remains unresolved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37938 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 09:18:59 +00:00
Duncan Sands
b4fd45e2fc Remove ExtractGlobalVariable - use StripPointerCasts 
instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37937 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 09:10:03 +00:00
Evan Cheng
86da6600ae Workaround of getCopyToRegs and getCopyFromRegs bugs for big-endian machines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37935 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 01:47:35 +00:00
Evan Cheng
991262834d Change CalculateHeights and CalculateDepths to be non-recursive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37934 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 01:37:28 +00:00
Dan Gohman
50b153335d Make the debug string for ISD::MERGE_VALUES consistent with the others. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37922 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 20:15:43 +00:00
Dan Gohman
6183f78cf8 Add a parameter to getCopyToParts and getCopyFromParts to specify whether 
endian swapping should be done, and update the code to use it. This fixes
some register ordering issues on big-endian systems, such as PowerPC,
introduced by the recent illegal by-val arguments changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 20:12:34 +00:00
Gabor Greif
a99be51bf5 Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37913 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 17:07:56 +00:00
Duncan Sands
14da32a486 Make sure only one copy of a filter is placed in the 
exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37908 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 15:15:01 +00:00
Evan Cheng
5db322acef Better assertion messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37890 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-05 07:05:38 +00:00
Duncan Sands
cf26d7ccac Extend eh.selector to support both catches and filters. 
Drop the eh.filter intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37875 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-04 20:52:51 +00:00
Dan Gohman
613e0d8008 Fix several over-aggressive folds for undef nodes in dagcombine, to 
follow the rules for undef used in instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37851 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 14:03:57 +00:00
Dale Johannesen
849f214a4e Fix for PR 1505 (and 1489). Rewrite X87 register 
model to include f32 variants.  Some factoring
improvments forthcoming.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37847 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-03 00:53:03 +00:00
Dan Gohman
27a70be55f Replace ExpandScalarFormalArgs and ExpandScalarCallArgs with the newly 
refactored getCopyFromParts and getCopyToParts, which are more general.
This effectively adds support for lowering illegal by-val vector call
arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-02 16:18:06 +00:00
Dan Gohman
23ff1826b9 Teach GetNegatedExpression to negate 0-B to B in UnsafeFPMath mode, and 
visitFSUB to fold 0-B to -B in UnsafeFPMath mode. Also change visitFNEG
to use isNegatibleForFree/GetNegatedExpression instead of doing a subset
of the same thing manually.

This fixes test/CodeGen/X86/negative-sin.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37842 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-02 15:48:56 +00:00
Evan Cheng
c45453fa1d Only do FNEG xform when the vector type is a floating point type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37818 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 21:44:35 +00:00
David Greene
821262953a Remove unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 21:42:03 +00:00
Evan Cheng
c908dcde45 Fix a vector FP constant CSE bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37814 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 21:36:04 +00:00
David Greene
a2a488594d Remove unnecessary attributions in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37799 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 03:42:23 +00:00
David Greene
cfacc8f5d2 Fix reference to cached end iterator invalidated by an erase operation. 
Uncovered by _GLIBCXX_DEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37795 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 02:49:11 +00:00
David Greene
a4ab2e8c72 Remove the "special tie breaker" because it resulted in inconsistent 
ordering and thus violated the strict weak ordering requirement of
priority_queue.  Uncovered by _GLIBCXX_DEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37794 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 02:48:09 +00:00
David Greene
8a46d342d8 Fix misue of iterator pointing to erased object. Uncovered by 
_GLIBCXX_DEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37793 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 02:45:24 +00:00
Dan Gohman
10a7aa6dea Fix an assertion failure in legalizing bitcast operators on targets where 
vectors are split down to single elements as part of legalization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37785 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 00:09:08 +00:00
Dan Gohman
b6f5b00c3b Add new TargetLowering code to provide the final register type that an 
illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37781 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 23:29:44 +00:00
Evan Cheng
292da949f6 If a livein is not used in the block. It's live through. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37764 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 18:47:28 +00:00
Evan Cheng
e47c333a12 Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 18:45:32 +00:00
Dan Gohman
6595cb3000 Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 16:08:04 +00:00
Dan Gohman
8c8c5fcbd7 Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValue 
to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37755 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 14:34:07 +00:00
Dan Gohman
89b20c07e9 Make the comment for ScalarizeVectorOp mention that it is only for use 
with single-element vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37752 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 14:06:22 +00:00
Duraid Madina
df82c93f2a ok, this is something of a dirty hack, but it seems to work. (fixes e.g. 
the SPASS miscompilation)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37750 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 09:01:14 +00:00
Duraid Madina
b2efabd571 ok, this much doesn't seem to bork anything 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37749 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 08:31:07 +00:00
Duraid Madina
4e378c6504 revert evan's fixes (and my doofusness) since they had a huge code 
quality hit. will look at this soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 08:11:59 +00:00
Duraid Madina
669f7382be pull evan's fixes - should help the nightly tester (but there are still 
some issues)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 07:07:13 +00:00
Evan Cheng
041040717d Replace std::set with SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 05:23:00 +00:00
Evan Cheng
75611fb4e6 Fix an obvious bug. Old code only worked for the entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 01:16:36 +00:00
Evan Cheng
7ac19afbb1 Correctly handle implcit def / use operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37740 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:05:13 +00:00
Evan Cheng
4efe74129f Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:03:35 +00:00
Duraid Madina
837a600a90 tidy this file up a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37725 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 00:21:58 +00:00
Duraid Madina
2e0930cf37 A bunch of fixes to the BigBlock allocator improve compile-time by ~20% 
and code quality by ~2% on my tests.

A big thank you to Roman Levenstein for this patch! See
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070618/050717.html
for more details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 23:46:54 +00:00
Dan Gohman
7f32156bb9 Generalize MVT::ValueType and associated functions to be able to represent 
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vector type used with them. Adjust
lowering and legalize to work with the normal SDNode kinds instead, and to
use the normal MVT functions to work with vector types instead of using the
two special operands that the pre-legalize nodes held.

This allows pre-legalize and post-legalize DAGs, and the code that operates
on them, to be more consistent. Pre-legalize vector operators can be handled
more consistently with scalar operators. And, -view-dag-combine1-dags and
-view-legalize-dags now look prettier for vector code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 16:23:39 +00:00
Dan Gohman
ea859be53c Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from 
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 14:59:07 +00:00
Duraid Madina
a8c7682939 check in the BigBlock local register allocator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 08:27:12 +00:00
Evan Cheng
0b2ce1fc19 std::set is really really terrible. Switch to SmallPtrSet to reduce compile time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 01:35:51 +00:00
Dan Gohman
2d74a318de Tidy up ValueType names in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 14:48:26 +00:00
Dan Gohman
b9f1019696 Rename TargetLowering::getNumElements and friends to 
TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 14:42:22 +00:00
Evan Cheng
b13cdbd865 Xforms: 
(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
(sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37685 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 07:39:16 +00:00