Commit Graph

456 Commits

Author SHA1 Message Date
Bill Wendling
056292fd73 Reverting r56249. On further investigation, this functionality isn't needed.
Apologies for the thrashing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16 21:48:12 +00:00
Bill Wendling
9468a9b6be - Change "ExternalSymbolSDNode" to "SymbolSDNode".
- Add linkage to SymbolSDNode (default to external).
- Change ISD::ExternalSymbol to ISD::Symbol.
- Change ISD::TargetExternalSymbol to ISD::TargetSymbol

These changes pave the way to allowing SymbolSDNodes with non-external linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-16 21:12:30 +00:00
Dan Gohman
095cc29f32 Define CallSDNode, an SDNode subclass for use with ISD::CALL.
Currently it just holds the calling convention and flags
for isVarArgs and isTailCall.

And it has several utility methods, which eliminate magic
5+2*i and similar index computations in several places.

CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle
nodes that are not CSE'd gracefully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56183 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-13 01:54:27 +00:00
Dan Gohman
f5aeb1a8e4 Rename ConstantSDNode::getValue to getZExtValue, for consistency
with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-12 16:56:44 +00:00
Dale Johannesen
209a4099f9 Succumb utterly to compatibility and implement
__sync_fetch_and_nand as ANDC, even though that's
not what nand means.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56087 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-11 02:15:03 +00:00
Dale Johannesen
7794f2a3a7 Add intrinsics for log, log2, log10, exp, exp2.
No functional change (and no FE change to generate them).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55753 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-04 00:47:13 +00:00
Dale Johannesen
a619d012c1 Fix some bugs in the code sequences for atomics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55643 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-02 20:30:23 +00:00
Gabor Greif
93c53e5583 fix a bunch of 80-col violations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-31 15:37:04 +00:00
Bill Wendling
3156b62855 Expand for ROTR with MVT::i64.
Dale, Could you please review this?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55581 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-31 02:53:19 +00:00
Dale Johannesen
ea9eedb787 Add ppc partial-word ATOMIC_CMP_SWAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-30 00:08:53 +00:00
Dale Johannesen
0e55f0678c Add partial word version of ATOMIC_SWAP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29 18:29:46 +00:00
Gabor Greif
ba36cb5242 erect abstraction boundaries for accessing SDValue members, rename Val -> Node to reflect semantics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 21:40:38 +00:00
Mon P Wang
5ad0bf658a In lowering SELECT_CC, removed cases where we can't flip the true and false when the compare value has a NaN
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 21:04:05 +00:00
Dale Johannesen
97efa36586 Implement partial-word binary atomics on ppc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-28 17:53:09 +00:00
Gabor Greif
99a6cb92d1 disallow direct access to SDValue::ResNo, provide a getter instead
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-26 22:36:50 +00:00
Dale Johannesen
bdab93a2ef Implement 32 & 64 bit versions of PPC atomic
binary primitives.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55343 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 22:34:37 +00:00
Dale Johannesen
140a8bb006 Remove PPC-specific lowering for atomics; the
generic stuff works fine.

Mark rewritten cmp-and-swap as not using CR1.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55336 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 21:09:52 +00:00
Dale Johannesen
65e3973dff It's important for the cmp-and-swap to balance
loads and stores but it's even more important for
it to store the right value.:(



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55319 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-25 18:53:26 +00:00
Dale Johannesen
f87d6c02f5 Implement __sync_synchronize on ppc32. Patch by Gary Benson.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55186 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 17:20:54 +00:00
Dale Johannesen
5f0cfa299d Rewrite ppc code generated for __sync_{bool|val}_compare_and_swap
so that lwarx and stwcx are always executed the same number of times.
This is important for performance, I'm told.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-22 03:49:10 +00:00
Nate Begeman
1db3c92306 Implement ISD::TRAP support on PPC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54644 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11 17:36:31 +00:00
Dale Johannesen
7232464bda Add a flag to disable jump table generation (all
switches use the binary search algorithm) for
environments that don't support it.  PPC64 JIT
is such an environment; turn the flag on for that.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54248 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-31 18:13:12 +00:00
Dan Gohman
475871a144 Rename SDOperand to SDValue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27 21:46:04 +00:00
Dan Gohman
8968450305 Tidy SDNode::use_iterator, and complete the transition to have it
parallel its analogue, Value::value_use_iterator. The operator* method
now returns the user, rather than the use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27 20:43:25 +00:00
Evan Cheng
982a05955a Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory (all of the parameter registers are used) are loaded from sp offsets that were off by 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24 08:17:07 +00:00
Duncan Sands
d038e04188 Add VerifyNode, a place to put sanity checks on
generic SDNode's (nodes with their own constructors
should do sanity checking in the constructor).  Add
sanity checks for BUILD_VECTOR and fix all the places
that were producing bogus BUILD_VECTORs, as found by
"make check".  My favorite is the BUILD_VECTOR with
only two operands that was being used to build a
vector with four elements!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53850 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21 10:20:31 +00:00
Duncan Sands
a7360f0178 Make sure custom lowering for LegalizeTypes
returns a node with the right number of
return values.  This fixes codegen of
Generic/cast-fp.ll, Generic/fp_to_int.ll
and PowerPC/multiple-return-values.ll
when using -march=ppc32 -mattr=+64bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-19 16:26:02 +00:00
Evan Cheng
5330192ab5 Implement llvm.atomic.cmp.swap.i32 on PPC. Patch by Gary Benson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53505 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-12 02:23:19 +00:00
Dan Gohman
a54cf17661 Include a frame index in the "fixed stack" pseudo source value
instead of using the frame index for the SVOffset, which was
inconsistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-11 22:44:52 +00:00
Chris Lattner
6291d69c4c Remove extraneous vertical whitespace before Eric gets the wrong idea ;-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53411 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-10 16:49:53 +00:00
Chris Lattner
85e7ac0353 Fix an altivec constant miscompilation that Duncan found through
his work on legalizetypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53410 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-10 16:33:38 +00:00
Dan Gohman
8e5f2c6f65 Pool-allocation for MachineInstrs, MachineBasicBlocks, and
MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53212 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-07 23:14:23 +00:00
Duncan Sands
126d90770b Rather than having a different custom legalization
hook for each way in which a result type can be
legalized (promotion, expansion, softening etc),
just use one: ReplaceNodeResults, which returns
a node with exactly the same result types as the
node passed to it, but presumably with a bunch of
custom code behind the scenes.  No change if the
new LegalizeTypes infrastructure is not turned on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53137 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-04 11:47:58 +00:00
Duncan Sands
4bdcb61af3 Add a new getMergeValues method that does not need
to be passed the list of value types, and use this
where appropriate.  Inappropriate places are where
the value type list is already known and may be
long, in which case the existing method is more
efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-02 17:40:58 +00:00
Dan Gohman
7f460203b0 Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect its
purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-30 20:59:49 +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
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
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
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
Duncan Sands
8e4eb09b1e Remove comparison methods for MVT. The main cause
of apint codegen failure is the DAG combiner doing
the wrong thing because it was comparing MVT's using
< rather than comparing the number of bits.  Removing
the < method makes this mistake impossible to commit.
Instead, add helper methods for comparing bits and use
them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52098 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-08 20:54:56 +00:00
Bill Wendling
a8a8f427d6 Temporarily reverting r52056. It's causing PPC to fail to bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-08 01:36:24 +00:00
Evan Cheng
929b39f0a0 Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 21:00:10 +00:00
Evan Cheng
6b4a65f4e7 PPC preferred loop alignment is 16.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52056 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 19:50:46 +00:00
Duncan Sands
83ec4b6711 Wrap MVT::ValueType in a struct to get type safety
and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52044 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-06 12:08:01 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 00:00:25 +00:00
Arnold Schwaighofer
30e62c098b Tail call optimization improvements:
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.

Initial PowerPC tail call implementation:

Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).  
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if 
  caller and callee are fastcc
  call is a tail call (in tail call position, call followed by ret)
  no variable argument lists or byval arguments
  option -tailcallopt is enabled
Supported:
 * non pic tail calls on linux/darwin
 * module-local tail calls on linux(PIC/GOT)/darwin(PIC)
 * inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.

A test checking the argument lowering behaviour on x86-64 was added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 09:16:33 +00:00
Chris Lattner
5e764233f3 A few inline asm cleanups:
- Make targetlowering.h fit in 80 cols.
  - Make LowerAsmOperandForConstraint const.
  - Make lowerXConstraint -> LowerXConstraint
  - Make LowerXConstraint return a const char* instead of taking a string byref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 23:02:14 +00:00
Evan Cheng
8608f2eff2 64-bit atomic operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49949 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 02:30:38 +00:00
Evan Cheng
54fc97dcdc PPC32 atomic operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49947 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-19 01:30:48 +00:00
Nicolas Geoffray
6ccbbd8990 Change Divided flag to Split, as suggested by Evan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15 08:08:50 +00:00
Nicolas Geoffray
c0cb28fd3a Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49611 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-13 13:40:22 +00:00
Dan Gohman
707e018423 Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12 04:36:06 +00:00
Dan Gohman
36b5c1338a Rename MemOperand to MachineMemOperand. This was suggested by
review feedback from Chris quite a while ago. No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 19:35:22 +00:00
Roman Levenstein
dc1adac582 Re-commit of the r48822, where the infinite looping problem discovered
by Dan Gohman is fixed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07 10:06:32 +00:00
Evan Cheng
6397c64441 Backing out 48222 temporarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03 03:13:16 +00:00
Chris Lattner
d27c991ceb Fix "Control reaches the end of non-void function" warnings,
patch by David Chisnall.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48963 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-30 18:22:13 +00:00
Roman Levenstein
e326332acd Use a linked data structure for the uses lists of an SDNode, just like
LLVM Value/Use does and MachineRegisterInfo/MachineOperand does.
This allows constant time for all uses list maintenance operations.

The idea was suggested by Chris. Reviewed by Evan and Dan.
Patch is tested and approved by Dan.

On normal use-cases compilation speed is not affected. On very big basic
blocks there are compilation speedups in the range of 15-20% or even better. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-26 12:39:26 +00:00
Bill Wendling
3e98c30cf5 Use the bit size of the operand instead of the hard-coded 32 to generate the
mask.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48750 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-24 23:16:37 +00:00
Duncan Sands
276dcbdc8d Introduce a new node for holding call argument
flags.  This is needed by the new legalize types
infrastructure which wants to expand the 64 bit
constants previously used to hold the flags on
32 bit machines.  There are two functional changes:
(1) in LowerArguments, if a parameter has the zext
attribute set then that is marked in the flags;
before it was being ignored; (2) PPC had some bogus
code for handling two word arguments when using the
ELF 32 ABI, which was hard to convert because of
the bogusness.  As suggested by the original author
(Nicolas Geoffray), I've disabled it for the moment.
Tested with "make check" and the Ada ACATS testsuite.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48640 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 09:14:45 +00:00
Dan Gohman
7925ed05d0 Add support for multiple return values for the PPC target by
converting call result lowering to use the CallingConvLowering
infastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48552 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 21:39:28 +00:00
Dale Johannesen
257f75d0b8 Make Complex long long/double/long double work
in ppc64 mode.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 17:11:08 +00:00
Dale Johannesen
fdd3ade005 Next round of PPC32 ABI changes. Allow for gcc
behavior where a callee thinks a param will be
present in memory, even though the ABI doc says
it doesn't have to be.  Handle complex long long
and complex double (4 and 8 return regs).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48439 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-17 02:13:43 +00:00
Dale Johannesen
8f5422c24b Implement the real calling convention for ppc32 Altivec:
vectors go at the end of the memory area, after all
non-vector parameters.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48364 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-14 17:41:26 +00:00
Dale Johannesen
d75686a471 Do not promote float params to double in varargs
calls here.  This was done earlier for params in
the varargs part of the params; any float params
that survive to here are in the non-varargs part,
and must not be promoted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48310 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 23:40:01 +00:00
Dale Johannesen
404d99010d One more bit of Altivec parameter passing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48269 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:49:20 +00:00
Dale Johannesen
75092de483 Implement Altivec passing to varargs functions on ppc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12 00:22:17 +00:00
Dan Gohman
034f60ed24 Generalize ExpandIntToFP to handle the case where the operand is legal
and it's the result that requires expansion. This code is a little confusing
because the TargetLoweringInfo tables for [US]INT_TO_FP use the operand type
(the integer type) rather than the result type. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48206 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11 01:59:03 +00:00
Evan Cheng
d2cde68855 Default ISD::PREFETCH to expand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 19:38:10 +00:00
Scott Michel
5b8f82e35b Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's
return ValueType can depend its operands' ValueType.

This is a cosmetic change, no functionality impacted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48145 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 15:42:14 +00:00
Nicolas Geoffray
0404cd97e4 Add description of individual bits in CR. This fix PR1765.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 14:12:10 +00:00
Dale Johannesen
b8cafe3427 Increase ISD::ParamFlags to 64 bits. Increase the ByValSize
field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff.  Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and 
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-10 02:17:22 +00:00
Chris Lattner
dc9971a2e3 Darwin PPC64 indirect call target goes in X12, not R12. This fixes these
two regression tests:
test/CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert.ll
test/CodeGen/PowerPC/2007-10-21-LocalRegAllocAssert2.ll



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48120 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 20:49:33 +00:00
Dale Johannesen
7f96f3912e More ppc32 byval handling (bug fixes). Things
are looking pretty good now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48043 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 01:41:42 +00:00
Evan Cheng
27b7db549e Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48042 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 00:58:38 +00:00
Dan Gohman
a2fcff4d97 Add support for calls with i128 return values on ppc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48041 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-08 00:19:12 +00:00
Bill Wendling
5f5bf3a3fd PPC64 passes arguments of integral type in i64 registers, not i32. Reflect this
by promoting smaller integral values (i32 at this point) to i64, then truncating
to get the wanted size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07 20:49:02 +00:00
Dan Gohman
9ed06db5c8 Add support for lowering 128-bit shifts on ppc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07 20:36:53 +00:00
Dale Johannesen
8419dd6aa6 Next bits of PPC byval handling. Basically functional
but there are bugs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48028 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07 20:27:40 +00:00
Dale Johannesen
1f797a32fd Next bit of PPC ByVal handling; call-site code seems
correct now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47978 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05 23:31:27 +00:00
Dale Johannesen
5b3b695c2f Move PPC lowering functions into PPCTargetLowering
class (cosmetic).  First piece of byval implementation;
this doesn't work yet.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47917 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04 23:17:14 +00:00
Dale Johannesen
28d08fdb9f Interface of getByValTypeAlignment differed between
generic & x86 versions; change generic to follow x86
and improve comments.  Add PPC version (not right
for non-Darwin.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47734 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28 22:31:51 +00:00
Dan Gohman
ec59b95a19 Don't hard-code the mask size to be 32, which is incorrect on ppc64
and was causing aborts with the new APInt changes. This may also be
fixing an obscure ppc64 bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 21:12:32 +00:00
Dan Gohman
b3564aa836 Convert the last remaining users of the non-APInt form of
ComputeMaskedBits to use the APInt form, and remove the
non-APInt form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27 01:23:58 +00:00
Andrew Lenharth
d497d9fab6 I cannot find a libgcc function for this builtin. Therefor expanding it to a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 14:46:26 +00:00
Nate Begeman
e179584f9b Change how FP immediates are handled.
1) ConstantFP is now expand by default
2) ConstantFP is not turned into TargetConstantFP during Legalize
   if it is legal.

This allows ConstantFP to be handled like Constant, allowing for 
targets that can encode FP immediates as MachineOperands.

As a bonus, fix up Itanium FP constants, which now correctly match,
and match more constants!  Hooray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14 08:57:00 +00:00
Dan Gohman
977a76fbb6 Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits
to pass the mask APInt by value, not by reference. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 22:28:48 +00:00
Chris Lattner
9f72d1a730 don't try to avoid inserting loads when lowering FORMAL_ARGUMENTS.
DAGCombine is now quite good at zapifying them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 07:35:30 +00:00
Dan Gohman
fd29e0eb06 Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t.
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47039 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13 00:35:47 +00:00
Dan Gohman
3069b87437 Follow Chris' suggestion; change the PseudoSourceValue accessors
to return pointers instead of references, since this is always what
is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 18:41:25 +00:00
Dan Gohman
69de1932b3 Re-apply the memory operand changes, with a fix for the static
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46827 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 22:27:42 +00:00
Evan Cheng
fcf5d4f456 Unbreak ppc debug support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46665 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 05:06:29 +00:00
Evan Cheng
334dc1f58d Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 21:00:00 +00:00
Dan Gohman
1a0248690a Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting
with the real FLT_ROUNDS (defined in <float.h>).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 00:41:03 +00:00
Dan Gohman
c6c391dadd Create a new class, MemOperand, for describing memory references
in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.

Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.

Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46585 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 00:25:39 +00:00
Evan Cheng
ff9b373e8f Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert
instruction at the end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 18:18:23 +00:00
Dan Gohman
b625f2f896 Factor the addressing mode and the load/store VT out of LoadSDNode
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 00:15:11 +00:00
Duncan Sands
f9c98e650d The last pieces needed for loading arbitrary
precision integers.  This won't actually work
(and most of the code is dead) unless the new
legalization machinery is turned on.  While
there, I rationalized the handling of i1, and
removed some bogus (and unused) sextload patterns.
For i1, this could result in microscopically
better code for some architectures (not X86).
It might also result in worse code if annotating
with AssertZExt nodes turns out to be more harmful
than helpful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46280 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-23 20:39:46 +00:00
Dale Johannesen
5c5eb80255 Implement flt_rounds for PowerPC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18 19:55:37 +00:00
Chris Lattner
ef97c676f9 get symbolic information for ppc ldbl nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18 18:51:16 +00:00
Chris Lattner
a7a02fb828 Fix a latent bug exposed by my truncstore patch. We compiled stfiwx-2.ll to:
_test:
	fctiwz f0, f1
	stfiwx f0, 0, r4
	blr 

instead of:

_test:
	fctiwz f0, f1
	stfd f0, -8(r1)
	nop
	nop
	lwz r2, -4(r1)
	stb r2, 0(r4)
	blr 

The former is not correct (stores 4 bytes, not 1).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-18 16:54:56 +00:00