Commit Graph

419 Commits

Author SHA1 Message Date
Eli Friedman
55ba816883 Misc optimizer+codegen work for 'cmpxchg' and 'atomicrmw'. They appear to be
working on x86 (at least for trivial testcases); other architectures will
need more work so that they actually emit the appropriate instructions for
orderings stricter than 'monotonic'. (As far as I can tell, the ARM, PPC,
Mips, and Alpha backends need such changes.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136457 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29 03:05:32 +00:00
Benjamin Kramer
22a54c1cd7 Don't allocate empty read-only SmallVectors during SelectionDAG deallocation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133348 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-18 13:13:44 +00:00
Devang Patel
8ec0c1c07b Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 18:27:52 +00:00
Dan Gohman
975716af1b Delete unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-16 22:19:54 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Owen Anderson
6154f6c929 Use the correct LHS type when determining the legalization of a shift's RHS type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127163 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 18:29:47 +00:00
Devang Patel
a778f5c798 Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.
This time with a fix that avoids using invalidated DenseMap iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 22:43:42 +00:00
Cameron Zwarich
1646953538 Roll out r125794 to help diagnose the llvm-gcc-i386-linux-selfhost failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 04:58:10 +00:00
Devang Patel
a4defc00eb Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17 23:33:27 +00:00
Stuart Hastings
a901129169 Swap VT and DebugLoc operands of getExtLoad() for consistency with
other getNode() methods.  Radar 9002173.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 16:23:55 +00:00
Chris Lattner
463b3c2a99 fix two comment thinkos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125481 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14 06:14:42 +00:00
Chris Lattner
a18da59d40 missed a header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125471 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-13 22:30:09 +00:00
Devang Patel
a2e868d34c Provide an interface to transfer SDDbgValue from one SDNode to another.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124245 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25 23:27:42 +00:00
Chris Lattner
29d8f0cae4 flags -> glue for selectiondag
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 17:24:32 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:38:05 +00:00
Duncan Sands
59d2dad59e On X86, MEMBARRIER, MFENCE, SFENCE, LFENCE are not target memory intrinsics,
so don't claim they are.  They are allocated using DAG.getNode, so attempts
to access MemSDNode fields results in reading off the end of the allocated
memory.  This fixes crashes with "llc -debug" due to debug code trying to
print MemSDNode fields for these barrier nodes (since the crashes are not
deterministic, use valgrind to see this).  Add some nasty checking to try
to catch this kind of thing in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-20 11:25:00 +00:00
Dan Gohman
f96e4bd2a3 Make CodeGen TBAA-aware.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116890 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-20 00:31:05 +00:00
Chris Lattner
84bd98ac7b finish pushing MachinePointerInfo through selectiondags. At this point,
I think I've audited all uses, so it should be dependable for address spaces,
and the pointer+offset info should also be accurate when there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114464 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 18:58:22 +00:00
Chris Lattner
da2d8e1032 eliminate an old SelectionDAG::getTruncStore method, propagating
MachinePointerInfo around more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 17:42:31 +00:00
Chris Lattner
5cd9391a08 eliminate last SelectionDAG::getLoad old entrypoint, on to stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 17:28:52 +00:00
Chris Lattner
d0e139fa74 fix the code that infers SV info to be correct when dealing
with an indexed load/store that has an offset in the index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 17:24:05 +00:00
Chris Lattner
3d6ccfba31 propagate MachinePointerInfo through various uses of the old
SelectionDAG::getExtLoad overload, and eliminate it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114446 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 17:04:51 +00:00
Chris Lattner
ecf42c4720 continue MachinePointerInfo'izing, eliminating use of one of the old
getLoad overloads.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 16:36:31 +00:00
Chris Lattner
e72f2027e9 reimplement memcpy/memmove/memset lowering to use MachinePointerInfo
instead of srcvalue/offset pairs.  This corrects SV info for mem 
operations whose size is > 32-bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 05:40:29 +00:00
Chris Lattner
5c5cb2a171 add overloads for SelectionDAG::getLoad, getStore, getTruncStore that take a
MachinePointerInfo.  Among other virtues, this doesn't silently  truncate the
svoffset to 32-bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114399 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 05:10:45 +00:00
Chris Lattner
e9ba5dd236 simplify interface to SelectionDAG::getMemIntrinsicNode, making it take a MachinePointerInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 04:57:15 +00:00
Chris Lattner
60bddc8bcd chagne interface to SelectionDAG::getAtomic to take a MachinePointerInfo,
eliminating some weird "infer a frame address" logic which was dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 04:53:42 +00:00
Bruno Cardoso Lopes
2e46e78c53 zap unused method. x86 is the only user and already has a more powerfull version
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31 02:36:20 +00:00
Rafael Espindola
cbeeae23c3 Fix va_arg for doubles. With this patch VAARG nodes always contain the
correct alignment information, which simplifies ExpandRes_VAARG a bit.

The patch introduces a new alignment information to TargetLoweringInfo. This is
needed since the two natural candidates cannot be used:

* The 's' in target data: If this is set to the minimal alignment of any
  argument, getCallFrameTypeAlignment would return 4 for doubles on ARM for
  example.
* The getTransientStackAlignment method. It is possible for an architecture to
  have argument less aligned than what we maintain the stack pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108072 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-11 04:01:49 +00:00
Evan Cheng
bcc8017c73 Move getExtLoad() and (some) getLoad() DebugLoc argument after EVT argument for consistency sake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:15:37 +00:00
Devang Patel
0d881dabc1 Propagate debug loc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06 22:08:15 +00:00
Rafael Espindola
72d13ff755 When splitting a VAARG, remember its alignment.
This produces terrible but correct code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106952 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26 18:22:20 +00:00
Dan Gohman
027657db7c Change UpdateNodeOperands' operand and return value from SDValue to
SDNode *, since it doesn't care about the ResNo value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 15:30:29 +00:00
Dan Gohman
7451d3e09d SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValue
shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set
doesn't needs its EnableFastISel argument.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-29 17:03:36 +00:00
Dan Gohman
ff7a562751 Implement a bunch more TargetSelectionDAGInfo infrastructure.
Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 17:31:57 +00:00
Dale Johannesen
0a406ae0d9 Fix PR 7087, and probably other things, by extending
getConstantFP to accept the two supported long double
target types.  This was not the original intent, but
there are other places that assume this works and it's
easy enough to do.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103299 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-07 21:35:53 +00:00
Dale Johannesen
fdb42fa5fe Add DBG_VALUE handling for byval parameters; this
produces a comment on targets that support it, but
the Dwarf writer is not hooked up yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-26 20:06:49 +00:00
Dan Gohman
50d2b1ac02 Give SelectionDAG a TargetMachine too, rather than having it
fetch one from the MachineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19 19:22:07 +00:00
Dan Gohman
d858e90f03 Use const qualifiers with TargetLowering. This eliminates several
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17 15:26:15 +00:00
Dan Gohman
46510a73e9 Add const qualifiers to CodeGen's use of LLVM IR constructs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 01:51:59 +00:00
Chris Lattner
decc267151 Three changes:
1. Introduce some enums and accessors in the InlineAsm class
   that eliminate a ton of magic numbers when handling inline
   asm SDNode.
2. Add a new MDNodeSDNode selection dag node type that holds
   a MDNode (shocking!)
3. Add a new argument to ISD::INLINEASM nodes that hold !srcloc
   metadata, propagating it to the instruction emitter, which
   drops it.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100605 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-07 05:20:54 +00:00
Chris Lattner
512063dd0f remove the now-redundant MMI pointer in SelectionDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 06:19:28 +00:00
Chris Lattner
de6e783b24 remove some redundant MMI arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 06:10:13 +00:00
Chris Lattner
ba79d72eab selection dag doesn't need DwarfWriter, remove some tendrils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05 02:23:33 +00:00
Mon P Wang
20adc9dc46 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100304 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-04 03:10:48 +00:00
Chris Lattner
b494ccf02c remove uses of DebugLoc::getUnknownLoc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100217 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 20:20:41 +00:00
Mon P Wang
e754d3fb85 Revert r100191 since it breaks objc in clang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:43:02 +00:00
Mon P Wang
e33c848fa4 Reapply address space patch after fixing an issue in MemCopyOptimizer.
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100191 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 18:04:15 +00:00
Bob Wilson
100f090add Revert Mon Ping's change 99928, since it broke all the llvm-gcc buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99948 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 22:27:04 +00:00
Mon P Wang
808bab0169 Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
A update of langref will occur in a subsequent checkin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99928 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30 20:55:56 +00:00