Chris Lattner
ec79bba97f
Fix PR1845 and rdar://5676945. Generic vectors smaller
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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
a31824a08e
Fix sse2.psrl.w and sse2.psrl.q definitions.
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llvm-svn: 45772
2008-01-09 02:16:44 +00:00
Ted Kremenek
a0a2881b1e
Added "getRoot()" to ImmutableMap.
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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
9b0f70bb85
Fixed 80 col. violation.
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llvm-svn: 45752
2008-01-08 19:38:55 +00:00
Chris Lattner
07fde9bde1
add a mayLoad property for machine instructions, a correlary to mayStore.
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This is currently not set by anything.
llvm-svn: 45748
2008-01-08 18:05:21 +00:00
Chris Lattner
ff71ec4dfb
add match support for casts.
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llvm-svn: 45744
2008-01-08 07:02:44 +00:00
Nate Begeman
281653b25e
Update the comment on scalar to vector to be a bit more clear.
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llvm-svn: 45707
2008-01-07 17:52:24 +00:00
Duncan Sands
b18c30acec
Small cleanup for handling of type/parameter attribute
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incompatibility.
llvm-svn: 45704
2008-01-07 17:16:06 +00:00
Chris Lattner
69fc766f63
split TargetInstrDesc out into its own header file.
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llvm-svn: 45696
2008-01-07 07:33:08 +00:00
Chris Lattner
03ad885039
rename TargetInstrDescriptor -> TargetInstrDesc.
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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
3ef160b15a
remove a dead method.
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llvm-svn: 45694
2008-01-07 06:47:10 +00:00
Chris Lattner
e99a6caee4
Rename all the M_* flags to be namespace qualified enums, and switch
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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
08a69ac2f5
add more and significantly better comments to the rest of the machineinstr
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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
c5c63ff9d7
add some mroe comments, add a isImplicitDef() method, add
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isConditionalBranch() and isUnconditionalBranch() methods.
llvm-svn: 45688
2008-01-07 05:38:38 +00:00
Chris Lattner
f376c99ea0
rename hasVariableOperands() -> isVariadic(). Add some comments.
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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
fd548c96cc
Move M_* flags down in the file. Move SchedClass up in the
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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
c75405bdb3
Removing a leaked file.
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llvm-svn: 45681
2008-01-07 03:23:52 +00:00
Chris Lattner
b0d06b4381
Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
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llvm-svn: 45680
2008-01-07 03:13:06 +00:00
Chris Lattner
f0f438a517
remove MachineOpCode typedef.
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llvm-svn: 45679
2008-01-07 02:48:55 +00:00
Chris Lattner
d34c47653e
remove some uses of MachineOpCode, move getSchedClass
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into TargetInstrDescriptor from TargetInstrInfo.
llvm-svn: 45678
2008-01-07 02:46:03 +00:00
Chris Lattner
e55e115616
Add predicates methods to TargetOperandInfo, and switch all clients
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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
c7e991b7c3
Setting GlobalDirective in TargetAsmInfo by default rather than
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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
a98c679de0
Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
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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
2a3be7bb6c
Move even more functionality from MRegisterInfo into TargetInstrInfo.
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Some day I'll get it all moved over...
llvm-svn: 45672
2008-01-07 01:35:02 +00:00
Gordon Henriksen
6047b6e140
With this patch, the LowerGC transformation becomes the
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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
5180e85675
Enabling the target-independent garbage collection infrastructure by hooking it
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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
a4ce4f6987
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
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llvm-svn: 45667
2008-01-06 23:38:27 +00:00
Chris Lattner
466e8ebcc7
back out accidental commit.
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llvm-svn: 45660
2008-01-06 19:19:32 +00:00
Chris Lattner
460d863ba5
fix an accidental commit that broke all the testers :(
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llvm-svn: 45659
2008-01-06 19:18:52 +00:00
Duncan Sands
404eb05247
The transform that tries to turn calls to bitcast functions into
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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
55e5090fe8
When transforming a call to a bitcast function into
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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
10324d0175
rename isStore -> mayStore to more accurately reflect what it captures.
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llvm-svn: 45656
2008-01-06 08:36:04 +00:00
Chris Lattner
e9dba0920b
describe isStore and simplify the implementation of hasUnmodelledSideEffects.
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No functionality change.
llvm-svn: 45651
2008-01-06 05:43:21 +00:00
Evan Cheng
880b080887
X86 JIT PIC jumptable support.
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llvm-svn: 45616
2008-01-05 02:26:58 +00:00
Owen Anderson
1984732f22
Didn't mean to commit this.
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llvm-svn: 45607
2008-01-05 00:43:37 +00:00
Owen Anderson
cc35708bac
Didn't mean to commit this.
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llvm-svn: 45606
2008-01-05 00:42:45 +00:00
Owen Anderson
6bb0c52628
Move some more functionality from MRegisterInfo to TargetInstrInfo.
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llvm-svn: 45603
2008-01-04 23:57:37 +00:00
Bill Wendling
0c209430b4
Don't recalculate the loop info and loop dominators analyses if they're
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preserved.
llvm-svn: 45596
2008-01-04 20:54:55 +00:00
Wojciech Matyjewicz
2bd541c5ff
fix typo
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llvm-svn: 45595
2008-01-04 20:04:08 +00:00
Evan Cheng
49ff8ecd03
X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support.
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llvm-svn: 45575
2008-01-04 10:46:51 +00:00
Chris Lattner
f3edc09f9b
Add a really quick hack at a machine code sinking pass, enabled with --enable-sinking.
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It is missing validity checks, so it is known broken. However, it is powerful enough
to compile this contrived code:
void test1(int C, double A, double B, double *P) {
double Tmp = A*A+B*B;
*P = C ? Tmp : A;
}
into:
_test1:
movsd 8(%esp), %xmm0
cmpl $0, 4(%esp)
je LBB1_2 # entry
LBB1_1: # entry
movsd 16(%esp), %xmm1
mulsd %xmm1, %xmm1
mulsd %xmm0, %xmm0
addsd %xmm1, %xmm0
LBB1_2: # entry
movl 24(%esp), %eax
movsd %xmm0, (%eax)
ret
instead of:
_test1:
movsd 16(%esp), %xmm0
mulsd %xmm0, %xmm0
movsd 8(%esp), %xmm1
movapd %xmm1, %xmm2
mulsd %xmm2, %xmm2
addsd %xmm0, %xmm2
cmpl $0, 4(%esp)
je LBB1_2 # entry
LBB1_1: # entry
movapd %xmm2, %xmm1
LBB1_2: # entry
movl 24(%esp), %eax
movsd %xmm1, (%eax)
ret
woo.
llvm-svn: 45570
2008-01-04 07:36:53 +00:00
Gordon Henriksen
7c87884ec3
Trying that again.
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llvm-svn: 45529
2008-01-03 03:32:33 +00:00
Evan Cheng
563fcc3428
Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used
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for non-function GV relocations that require function address stubs (e.g. Mac OS X in non-static mode).
llvm-svn: 45527
2008-01-03 02:56:28 +00:00
Chris Lattner
e35604ddb2
don't access element zero of an array of size zero.
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llvm-svn: 45526
2008-01-03 01:25:31 +00:00
Chris Lattner
b18b0b99c6
Don't create a new ParamAttrsList (which copies the vector) just to
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get a profile.
llvm-svn: 45524
2008-01-03 00:29:27 +00:00
Chris Lattner
d0e1f10078
move some code out of line, rearrange a bit.
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llvm-svn: 45519
2008-01-03 00:10:22 +00:00
Chris Lattner
d135068e53
Disallow copying explicitly.
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llvm-svn: 45518
2008-01-03 00:09:47 +00:00
Chris Lattner
3e13b8c173
Split param attr implementation out from Function.cpp into its
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own file. Don't #include ParameterAttributes.h into any major
public header files: just move methods out of line as appropriate.
llvm-svn: 45517
2008-01-02 23:42:30 +00:00
Ted Kremenek
a26f5d188f
Inverted argument order for ImmutableMap::Profile.
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llvm-svn: 45507
2008-01-02 22:18:33 +00:00
Ted Kremenek
d7c6b0e664
Added iterator and profiling (i.e. FoldingSetNodeID) support to ImmutableMap.
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llvm-svn: 45503
2008-01-02 21:31:48 +00:00