47299489ec
Oops, missed one.
...
llvm-svn: 45719
2008-01-07 21:32:09 +00:00
bbc6352d1f
Make some predicates static.
...
llvm-svn: 45718
2008-01-07 21:30:40 +00:00
24db8d383d
Pruning includes.
...
llvm-svn: 45700
2008-01-07 13:30:38 +00:00
f3efadcb5b
remove #includage
...
llvm-svn: 45697
2008-01-07 07:42:25 +00:00
03ad885039
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
fd2e338b85
simplify some code.
...
llvm-svn: 45693
2008-01-07 06:47:00 +00:00
e99a6caee4
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
08a69ac2f5
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
769c86bf63
simplify some code using new predicates
...
llvm-svn: 45689
2008-01-07 05:40:58 +00:00
f376c99ea0
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
b0d06b4381
Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
...
llvm-svn: 45680
2008-01-07 03:13:06 +00:00
d34c47653e
remove some uses of MachineOpCode, move getSchedClass
...
into TargetInstrDescriptor from TargetInstrInfo.
llvm-svn: 45678
2008-01-07 02:46:03 +00:00
e55e115616
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
c7e991b7c3
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
a98c679de0
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
0ec92e9d64
Update CodeGen for MRegisterInfo --> TargetInstrInfo changes.
...
llvm-svn: 45673
2008-01-07 01:35:56 +00:00
2d684b1fbf
Ammending r45669 with a missing file.
...
llvm-svn: 45671
2008-01-07 01:33:09 +00:00
6047b6e140
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
5180e85675
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
a4ce4f6987
rename isLoad -> isSimpleLoad due to evan's desire to have such a predicate.
...
llvm-svn: 45667
2008-01-06 23:38:27 +00:00
10324d0175
rename isStore -> mayStore to more accurately reflect what it captures.
...
llvm-svn: 45656
2008-01-06 08:36:04 +00:00
1694a53c5d
Remove an unused variable.
...
llvm-svn: 45655
2008-01-06 07:43:13 +00:00
7eac714b41
make this build with newer gcc's
...
llvm-svn: 45637
2008-01-05 23:29:51 +00:00
5743da502e
If custom lowering of insert element fails, the result Val will be 0.
...
Don't overwrite a variable used by the fallthrough code path in this
case.
llvm-svn: 45630
2008-01-05 20:47:37 +00:00
647e61a42b
Fix build issue on certain compilers.
...
llvm-svn: 45629
2008-01-05 20:15:42 +00:00
ee61d14bf6
The current impl is really trivial, add some comments about how it can be made better.
...
llvm-svn: 45625
2008-01-05 06:47:58 +00:00
276178e49f
allow sinking to be enabled for the jit
...
llvm-svn: 45624
2008-01-05 06:14:16 +00:00
d11ca169e7
don't sink anything with side effects, this makes lots of stuff work, but sinks almost nothing.
...
llvm-svn: 45617
2008-01-05 02:33:22 +00:00
6ec78274df
fix a common crash.
...
llvm-svn: 45614
2008-01-05 01:39:17 +00:00
3592b2352d
I should not be allowed to commit when sleepy.
...
llvm-svn: 45608
2008-01-05 00:48:55 +00:00
0c209430b4
Don't recalculate the loop info and loop dominators analyses if they're
...
preserved.
llvm-svn: 45596
2008-01-04 20:54:55 +00:00
118ae4cd61
80-column violations.
...
llvm-svn: 45574
2008-01-04 08:59:18 +00:00
3bf5603ce4
Add that this preserves some analyses.
...
llvm-svn: 45573
2008-01-04 08:48:49 +00:00
66470d02c3
Move option to enable machine LICM into LLVMTargetMachine.cpp.
...
llvm-svn: 45572
2008-01-04 08:11:03 +00:00
d865697016
Call the parent's getAnalysisUsage.
...
llvm-svn: 45571
2008-01-04 07:50:05 +00:00
f3edc09f9b
Add a really quick hack at a machine code sinking pass, enabled with --enable-sinking.
...
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
b5c1d9b7da
remove dead #includes and reorder the rest.
...
llvm-svn: 45569
2008-01-04 06:41:45 +00:00
0ba4184404
Use the correct MachineRegisterInfo object.
...
llvm-svn: 45499
2008-01-02 21:10:54 +00:00
f0b37780ca
Remove dead code.
...
llvm-svn: 45496
2008-01-02 20:47:37 +00:00
5da1945cdd
Use the new architecture to get the containing machine basic block for a machine
...
instruction. Also, use "splice" to move the new instruction instead of
remove/insert (where it was leaking memory anyway).
llvm-svn: 45492
2008-01-02 19:32:43 +00:00
eee14601b1
Move some more instruction creation methods from RegisterInfo into InstrInfo.
...
llvm-svn: 45484
2008-01-01 21:11:32 +00:00
caaf8aae4d
Make MachineRegisterInfo::getVRegDef more efficient by aiming the keep the def of the vreg at the start of the list, so the list doesn't need to be traversed.
...
llvm-svn: 45483
2008-01-01 21:08:22 +00:00
0cb9dd7aa2
switch the register iterator to act more like hte LLVM value iterator: dereferencing
...
it now returns the machineinstr of the use. To get the operand, use I.getOperand().
Add a new MachineRegisterInfo::replaceRegWith, which is basically like
Value::replaceAllUsesWith.
llvm-svn: 45482
2008-01-01 20:36:19 +00:00
39204d76c5
Add a trivial but handy function to efficiently return the machine
...
instruction that defines the specified vreg. Crazy.
llvm-svn: 45480
2008-01-01 03:07:29 +00:00
961e7427ea
Implement automatically updated def/use lists for all MachineInstr register
...
operands. The lists are currently kept in MachineRegisterInfo, but it does
not yet provide an iterator interface to them.
llvm-svn: 45477
2008-01-01 01:12:31 +00:00
25568e4cef
Fix a problem where lib/Target/TargetInstrInfo.h would include and use
...
a header file from libcodegen. This violates a layering order: codegen
depends on target, not the other way around. The fix to this is to
split TII into two classes, TII and TargetInstrInfoImpl, which defines
stuff that depends on libcodegen. It is defined in libcodegen, where
the base is not.
llvm-svn: 45475
2008-01-01 01:03:04 +00:00
57a60f0466
Fix PR1833 - eh.exception and eh.selector return two
...
values, which means doing extra legalization work.
It would be easier to get this kind of thing right if
there was some documentation...
llvm-svn: 45472
2007-12-31 18:35:50 +00:00
7a73ae9a86
Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
...
Machine-level API cleanup instigated by Chris.
llvm-svn: 45470
2007-12-31 06:32:00 +00:00
574e7166e0
properly encapsulate the parent field of MBB and MI with get/set accessors.
...
llvm-svn: 45469
2007-12-31 04:56:33 +00:00
21ec2b4769
update a couple of references to SSARegMap.
...
llvm-svn: 45468
2007-12-31 04:16:08 +00:00
Owen Anderson