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Commit Graph

6202 Commits

Author SHA1 Message Date
Evan Cheng
a5183224b0 Add hasByValArgument() to test if a call instruction has byval argument(s).
llvm-svn: 45913
2008-01-12 18:57:32 +00:00
Duncan Sands
3b617cbe30 Be more liberal in what parameter attributes are
allowed on the vararg arguments of a call.

llvm-svn: 45909
2008-01-12 16:42:01 +00:00
Chris Lattner
fb5876f0be Allow clients to specify the inline threshold when creating
the inliner pass.  Patch by Robert Zeh.

llvm-svn: 45903
2008-01-12 06:49:13 +00:00
Chris Lattner
433aca5066 remove some incorrect classof's.
llvm-svn: 45893
2008-01-11 23:25:16 +00:00
Duncan Sands
e55a5806ac Do not allow attributes beyond a function's last
parameter, even if it is a varargs function.  Do
allow attributes on the varargs part of a call,
but not beyond the last argument.  Only allow
selected attributes to be on the varargs part of
a call (currently only 'byval' is allowed).  The
reasoning here is that most attributes, eg inreg,
simply make no sense here.

llvm-svn: 45887
2008-01-11 22:36:48 +00:00
Chris Lattner
89d996afce add operator==/!= to smallvector.
llvm-svn: 45872
2008-01-11 18:42:02 +00:00
Chris Lattner
0293fca6d8 rename MachineInstr::setInstrDescriptor -> setDesc
llvm-svn: 45871
2008-01-11 18:10:50 +00:00
Chris Lattner
ff7707de37 don't include loopinfo.h from this file.
llvm-svn: 45858
2008-01-11 06:30:04 +00:00
Chris Lattner
201be5f41e Move typedef of loop to top of the file where it is more obvious.
llvm-svn: 45857
2008-01-11 06:29:42 +00:00
Chris Lattner
b9232a8374 Fix 80 col violations
llvm-svn: 45856
2008-01-11 06:27:42 +00:00
Scott Michel
1e9496e4d4 More CellSPU refinement and progress:
- Cleaned up custom load/store logic, common code is now shared [see note
  below], cleaned up address modes

- More test cases: various intrinsics, structure element access (load/store
  test), updated target data strings, indirect function calls.

Note: This patch contains a refactoring of the LoadSDNode and StoreSDNode
structures: they now share a common base class, LSBaseSDNode, that
provides an interface to their common functionality. There is some hackery
to access the proper operand depending on the derived class; otherwise,
to do a proper job would require finding and rearranging the SDOperands
sent to StoreSDNode's constructor. The current refactor errs on the
side of being conservatively and backwardly compatible while providing
functionality that reduces redundant code for targets where loads and
stores are custom-lowered.

llvm-svn: 45851
2008-01-11 02:53:15 +00:00
Chris Lattner
bfffa4f21e Simplify the side effect stuff a bit more and make licm/sinking
both work right according to the new flags.

This removes the TII::isReallySideEffectFree predicate, and adds
TII::isInvariantLoad. 

It removes NeverHasSideEffects+MayHaveSideEffects and adds
UnmodeledSideEffects as machine instr flags.  Now the clients
can decide everything they need.

I think isRematerializable can be implemented in terms of the
flags we have now, though I will let others tackle that.

llvm-svn: 45843
2008-01-10 23:08:24 +00:00
Duncan Sands
2c89976416 Output sinl for a long double FSIN node, not sin.
Likewise fix up a bunch of other libcalls.  While
there I remove NEG_F32 and NEG_F64 since they are
not used anywhere.  This fixes 9 Ada ACATS failures.

llvm-svn: 45833
2008-01-10 10:28:30 +00:00
Evan Cheng
8934a96adb Clearify the meaning of immutable StackObject.
llvm-svn: 45828
2008-01-10 07:19:43 +00:00
Evan Cheng
f20828226e Add a isImmutable bit to StackObject. Fixed stack objects are immutable (in the function) unless specified otherwise.
llvm-svn: 45812
2008-01-10 02:18:37 +00:00
Dale Johannesen
fdd4b3846f Emit unused EH frames for weak definitions on Darwin,
because assembler/linker can't cope with weak absolutes.
PR 1880.

llvm-svn: 45811
2008-01-10 02:03:30 +00:00
Chris Lattner
d3a396668c provide def_* and use_* iterators in addition to reg_* iterators.
The first only returns definitions of a register, the second only
returns uses, the third returns both.

llvm-svn: 45803
2008-01-10 01:01:27 +00:00
Chris Lattner
b02074514e Fix PR1845 and rdar://5676945. Generic vectors smaller
than hardware supported type will be scalarized, so we
can infer their alignment from that info.

We now codegen pr1845 into:

_boolVectorSelect:
	lbz r2, 0(r3)
	stb r2, -16(r1)
	blr 

llvm-svn: 45796
2008-01-10 00:30:57 +00:00
Evan Cheng
f91cfb435f Fix sse2.psrl.w and sse2.psrl.q definitions.
llvm-svn: 45772
2008-01-09 02:16:44 +00:00
Ted Kremenek
8461cdc206 Added "getRoot()" to ImmutableMap.
Made the ctor for ImmutableMap to construct a map from an AVL tree public.

llvm-svn: 45756
2008-01-08 21:05:59 +00:00
Ted Kremenek
9d742fd3c4 Fixed 80 col. violation.
llvm-svn: 45752
2008-01-08 19:38:55 +00:00
Chris Lattner
9b7b3ade8f add a mayLoad property for machine instructions, a correlary to mayStore.
This is currently not set by anything.

llvm-svn: 45748
2008-01-08 18:05:21 +00:00
Chris Lattner
a39e69f292 add match support for casts.
llvm-svn: 45744
2008-01-08 07:02:44 +00:00
Nate Begeman
9b7f984bbb Update the comment on scalar to vector to be a bit more clear.
llvm-svn: 45707
2008-01-07 17:52:24 +00:00
Duncan Sands
7955cf0cd7 Small cleanup for handling of type/parameter attribute
incompatibility.

llvm-svn: 45704
2008-01-07 17:16:06 +00:00
Chris Lattner
ba567fa77b split TargetInstrDesc out into its own header file.
llvm-svn: 45696
2008-01-07 07:33:08 +00:00
Chris Lattner
f83aae613c rename TargetInstrDescriptor -> TargetInstrDesc.
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695
2008-01-07 07:27:27 +00:00
Chris Lattner
c9e870d7c6 remove a dead method.
llvm-svn: 45694
2008-01-07 06:47:10 +00:00
Chris Lattner
57e851edfe Rename all the M_* flags to be namespace qualified enums, and switch
all clients over to using predicates instead of these flags directly.
These are now private values which are only to be used to statically
initialize the tables.

llvm-svn: 45692
2008-01-07 06:42:05 +00:00
Chris Lattner
c745aa59b3 add more and significantly better comments to the rest of the machineinstr
flags that can be set.  Add predicates for the ones lacking it, and switch
some clients over to using the predicates instead of Flags directly.

llvm-svn: 45690
2008-01-07 06:21:53 +00:00
Chris Lattner
1cdb8f4da1 add some mroe comments, add a isImplicitDef() method, add
isConditionalBranch() and isUnconditionalBranch() methods.

llvm-svn: 45688
2008-01-07 05:38:38 +00:00
Chris Lattner
9b987de2c5 rename hasVariableOperands() -> isVariadic(). Add some comments.
Evan, please review the comments I added to getNumDefs to make sure
that they are accurate, thx.

llvm-svn: 45687
2008-01-07 05:19:29 +00:00
Chris Lattner
b0e50db817 Move M_* flags down in the file. Move SchedClass up in the
TargetInstrDescriptor class and shrink to 16-bits, saving a 
word in TargetInstrDescriptor.  Add some comments.

llvm-svn: 45686
2008-01-07 05:06:49 +00:00
Gordon Henriksen
e90b061f6a Removing a leaked file.
llvm-svn: 45681
2008-01-07 03:23:52 +00:00
Chris Lattner
9d38dfa4a5 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
llvm-svn: 45680
2008-01-07 03:13:06 +00:00
Chris Lattner
55343065e3 remove MachineOpCode typedef.
llvm-svn: 45679
2008-01-07 02:48:55 +00:00
Chris Lattner
96d0a93f8e remove some uses of MachineOpCode, move getSchedClass
into TargetInstrDescriptor from TargetInstrInfo.

llvm-svn: 45678
2008-01-07 02:46:03 +00:00
Chris Lattner
93e1e6ee12 Add predicates methods to TargetOperandInfo, and switch all clients
over to using them, instead of diddling Flags directly.  Change the
various flags from const variables to enums.

llvm-svn: 45677
2008-01-07 02:39:19 +00:00
Gordon Henriksen
edbfece273 Setting GlobalDirective in TargetAsmInfo by default rather than
providing a misleading facility. It's used once in the MIPS backend
and hardcoded as "\t.globl\t" everywhere else.

llvm-svn: 45676
2008-01-07 02:31:11 +00:00
Chris Lattner
f7f96d818f Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674
2008-01-07 01:56:04 +00:00
Owen Anderson
f19692b2f6 Move even more functionality from MRegisterInfo into TargetInstrInfo.
Some day I'll get it all moved over...

llvm-svn: 45672
2008-01-07 01:35:02 +00:00
Gordon Henriksen
db4f51e1b9 With this patch, the LowerGC transformation becomes the
ShadowStackCollector, which additionally has reduced overhead with
no sacrifice in portability.

Considering a function @fun with 8 loop-local roots,
ShadowStackCollector introduces the following overhead
(x86):

; shadowstack prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    $___gc_fun, 20(%esp)
        movl    $0, 24(%esp)
        movl    $0, 28(%esp)
        movl    $0, 32(%esp)
        movl    $0, 36(%esp)
        movl    $0, 40(%esp)
        movl    $0, 44(%esp)
        movl    $0, 48(%esp)
        movl    $0, 52(%esp)
        movl    %ecx, 16(%esp)
        leal    16(%esp), %ecx
        movl    %ecx, (%eax)

; shadowstack loop overhead
        (none)

; shadowstack epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; shadowstack metadata
        .align  3
___gc_fun:                              # __gc_fun
        .long   8
        .space  4

In comparison to LowerGC:

; lowergc prologue
        movl    L_llvm_gc_root_chain$non_lazy_ptr, %eax
        movl    (%eax), %ecx
        movl    %ecx, 48(%esp)
        movl    $8, 52(%esp)
        movl    $0, 60(%esp)
        movl    $0, 56(%esp)
        movl    $0, 68(%esp)
        movl    $0, 64(%esp)
        movl    $0, 76(%esp)
        movl    $0, 72(%esp)
        movl    $0, 84(%esp)
        movl    $0, 80(%esp)
        movl    $0, 92(%esp)
        movl    $0, 88(%esp)
        movl    $0, 100(%esp)
        movl    $0, 96(%esp)
        movl    $0, 108(%esp)
        movl    $0, 104(%esp)
        movl    $0, 116(%esp)
        movl    $0, 112(%esp)

; lowergc loop overhead
        leal    44(%esp), %eax
        movl    %eax, 56(%esp)
        leal    40(%esp), %eax
        movl    %eax, 64(%esp)
        leal    36(%esp), %eax
        movl    %eax, 72(%esp)
        leal    32(%esp), %eax
        movl    %eax, 80(%esp)
        leal    28(%esp), %eax
        movl    %eax, 88(%esp)
        leal    24(%esp), %eax
        movl    %eax, 96(%esp)
        leal    20(%esp), %eax
        movl    %eax, 104(%esp)
        leal    16(%esp), %eax
        movl    %eax, 112(%esp)

; lowergc epilogue
        movl    48(%esp), %edx
        movl    %edx, (%ecx)

; lowergc metadata
        (none)

llvm-svn: 45670
2008-01-07 01:30:53 +00:00
Gordon Henriksen
88a41c672b Enabling the target-independent garbage collection infrastructure by hooking it
up to the various compiler pipelines.

This doesn't actually add support for any GC algorithms, which means it 
temporarily breaks a few tests. To be fixed shortly.

llvm-svn: 45669
2008-01-07 01:30:38 +00:00
Chris Lattner
14310afe42 rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
llvm-svn: 45667
2008-01-06 23:38:27 +00:00
Chris Lattner
a09bc3d9a4 back out accidental commit.
llvm-svn: 45660
2008-01-06 19:19:32 +00:00
Chris Lattner
6badc24aa5 fix an accidental commit that broke all the testers :(
llvm-svn: 45659
2008-01-06 19:18:52 +00:00
Duncan Sands
fd975e4b3d The transform that tries to turn calls to bitcast functions into
direct calls bails out unless caller and callee have essentially
equivalent parameter attributes.  This is illogical - the callee's
attributes should be of no relevance here.  Rework the logic, which
incidentally fixes a crash when removed arguments have attributes.

llvm-svn: 45658
2008-01-06 18:27:01 +00:00
Duncan Sands
b8489f09a2 When transforming a call to a bitcast function into
a direct call with cast parameters and cast return
value (if any), instcombine was prepared to cast any
non-void return value into any other, whether castable
or not.  Add a new predicate for testing whether casting
is valid, and check it both for the return value and
(as a cleanup) for the parameters.

llvm-svn: 45657
2008-01-06 10:12:28 +00:00
Chris Lattner
5489888580 rename isStore -> mayStore to more accurately reflect what it captures.
llvm-svn: 45656
2008-01-06 08:36:04 +00:00
Chris Lattner
06c02cdcbc describe isStore and simplify the implementation of hasUnmodelledSideEffects.
No functionality change. 

llvm-svn: 45651
2008-01-06 05:43:21 +00:00