8958a78576
Get rid of the isKillInst predicate. LiveVariables already provides this information.
...
llvm-svn: 45797
2008-01-10 00:33:11 +00:00
ec79bba97f
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
73d1017871
Remove comments that do not correspond to anything after recent refactoring.
...
llvm-svn: 45792
2008-01-10 00:09:10 +00:00
1c8152ba03
Copies need to be inserted before the first terminator, not at the end of the block.
...
llvm-svn: 45791
2008-01-10 00:01:41 +00:00
0e400d4cb7
Special copy SUnit's do not have SDNode's.
...
llvm-svn: 45787
2008-01-09 23:01:55 +00:00
436db42a3c
Clean up StrongPHIElimination a bit, and add some more comments to the internal structures. There's
...
still more work to do on this front.
llvm-svn: 45783
2008-01-09 22:40:54 +00:00
48f22f0b80
Fix compile failures with g++-4.3.
...
llvm-svn: 45781
2008-01-09 19:42:09 +00:00
4de0c3978d
StrongPHIElim: Now with even fewer trivial bugs!
...
llvm-svn: 45775
2008-01-09 10:41:39 +00:00
77c3fe441b
Fix an infinite recursion bug in InsertCopies.
...
llvm-svn: 45774
2008-01-09 10:32:30 +00:00
e0fd9bd35a
Fix some simple bugs. StrongPHIElimination now does not crash on 164.gzip.
...
llvm-svn: 45773
2008-01-09 06:19:05 +00:00
9129f51f9b
add a testcase
...
llvm-svn: 45768
2008-01-09 00:37:18 +00:00
45e5032b1d
add a note
...
llvm-svn: 45766
2008-01-09 00:17:57 +00:00
51b01bf8a5
Make load->store deletion a bit smarter. This allows us to compile this:
...
void test(long long *P) { *P ^= 1; }
into just:
_test:
movl 4(%esp), %eax
xorl $1, (%eax)
ret
instead of code like this:
_test:
movl 4(%esp), %ecx
xorl $1, (%ecx)
movl 4(%ecx), %edx
movl %edx, 4(%ecx)
ret
llvm-svn: 45762
2008-01-08 23:08:06 +00:00
1b0d5c747e
Rename registers that do not need copies.
...
llvm-svn: 45759
2008-01-08 21:54:52 +00:00
bb956ca730
Use size_t to store Pos, avoid truncating value
...
on 64-bit builds. Analysis and original patch
by Török Edwin. Code audit found another place
with the same problem, also fixed here.
llvm-svn: 45746
2008-01-08 10:06:15 +00:00
2940c5c56d
Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic.
...
llvm-svn: 45745
2008-01-08 07:23:51 +00:00
89f36e6b21
Finally implement correct ordered comparisons for PPC, even though
...
the code generated is not wonderful. This turns a miscompilation into
a code quality bug (noted in the ppc readme). This fixes PR642, which
is over 2 years old (!). Nate, please review this.
llvm-svn: 45742
2008-01-08 06:46:30 +00:00
812e1ea7cf
Actually insert copies now!
...
llvm-svn: 45738
2008-01-08 05:16:15 +00:00
00300ddff1
Minor fix to enable x86-64 pic jit (still fails for other reasons).
...
llvm-svn: 45734
2008-01-08 02:07:10 +00:00
4951da49aa
Fix a x86-64 static codegen bug. This fixes a lot of x86-64 jit failures.
...
llvm-svn: 45733
2008-01-08 02:06:11 +00:00
3b6fe5fa8d
Silence warning about loss of precision.
...
llvm-svn: 45731
2008-01-08 00:52:29 +00:00
7250120177
Only mark instructions that load a single value without extension as isSimpleLoad = 1.
...
llvm-svn: 45727
2008-01-07 23:56:57 +00:00
ba734518c1
add a new bit.
...
llvm-svn: 45726
2008-01-07 23:16:55 +00:00
8242168ef4
Unbreak x86-64.
...
llvm-svn: 45725
2008-01-07 23:08:23 +00:00
ef81aa75f6
add a note that is important for some fp apps.
...
llvm-svn: 45723
2008-01-07 21:59:58 +00:00
730d088be1
possible switch lowering improvement.
...
llvm-svn: 45720
2008-01-07 21:38:14 +00:00
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
c50c210d76
I doubt the address of the Error string was intended
...
to be used for the force_interpreter parameter...
Spotted by gcc-4.2.
llvm-svn: 45714
2008-01-07 19:14:42 +00:00
d19a6f4836
Add missing newline at EOF.
...
llvm-svn: 45712
2008-01-07 19:13:36 +00:00
b18c30acec
Small cleanup for handling of type/parameter attribute
...
incompatibility.
llvm-svn: 45704
2008-01-07 17:16:06 +00:00
d8d4170f84
Unbreak x86-32 darwin long double!
...
llvm-svn: 45703
2008-01-07 16:36:38 +00:00
28bf7ac219
Fix long double support on x86-32 linux.
...
llvm-svn: 45701
2008-01-07 13:44:22 +00:00
24db8d383d
Pruning includes.
...
llvm-svn: 45700
2008-01-07 13:30:38 +00:00
a3bdad153f
Operand 1 should be a register. We don't care if it's a preg, vreg, or 0.
...
llvm-svn: 45699
2008-01-07 08:05:29 +00:00
d7857eafd0
add a note
...
llvm-svn: 45698
2008-01-07 07:46:23 +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
d004f54155
use predicate.
...
llvm-svn: 45691
2008-01-07 06:37:29 +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
8c69898157
remove a dead field.
...
llvm-svn: 45685
2008-01-07 04:57:42 +00:00
6077962101
no need to explicitly clear these fields.
...
llvm-svn: 45683
2008-01-07 04:55:09 +00:00
b0d06b4381
Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
...
llvm-svn: 45680
2008-01-07 03:13:06 +00:00
f0f438a517
remove MachineOpCode typedef.
...
llvm-svn: 45679
2008-01-07 02:48:55 +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
efb08802ec
Deleting an empty file. Thanks, /usr/bin/patch!
...
llvm-svn: 45675
2008-01-07 02:29:04 +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
2a3be7bb6c
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
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
b296b0f1c1
The pic base can't be duplicated.
...
llvm-svn: 45668
2008-01-06 23:49:32 +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
404eb05247
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
55e5090fe8
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
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
a348f55ec6
Change the 'isStore' inferrer to look for 'SDNPMayStore'
...
instead of "ISD::STORE". This allows us to mark target-specific dag
nodes as storing (such as ppc byteswap stores). This allows us to remove
more explicit isStore flags from the .td files.
Finally, add a warning for when a .td file contains an explicit
isStore and tblgen is able to infer it.
llvm-svn: 45654
2008-01-06 06:44:58 +00:00
f4d55ec4e8
remove explicit isStore flags that are now inferrable.
...
llvm-svn: 45653
2008-01-06 05:55:01 +00:00
e20f380fbf
remove some isStore flags that are now inferred automatically.
...
llvm-svn: 45652
2008-01-06 05:53:26 +00:00
5fa2c64b78
Fix comment.
...
llvm-svn: 45638
2008-01-05 23:30:51 +00:00
7eac714b41
make this build with newer gcc's
...
llvm-svn: 45637
2008-01-05 23:29:51 +00:00
22950d26f5
Remove an incorrect optimization that is performed correctly by
...
the target independent legalizer.
llvm-svn: 45631
2008-01-05 20:51:30 +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
9231958391
Refactoring the x86 and x86-64 calling convention implementations,
...
unifying the copied algorithms and saving over 500 LOC. There should
be no functionality change, but please test on your favorite x86
target.
llvm-svn: 45627
2008-01-05 16:56:59 +00:00
be984cf10b
Chris and Evan noticed that this check was compleatly fubared. I was
...
checking that there was a from a global instead of a load from the stub
for a global, which is the one that's safe to hoist.
Consider this program:
volatile char G[100];
int B(char *F, int N) {
for (; N > 0; --N)
F[N] = G[N];
}
In static mode, we shouldn't be hoisting the load from G:
$ llc -relocation-model=static -o - a.bc -march=x86 -machine-licm
LBB1_1: # bb.preheader
leal -1(%eax), %edx
testl %edx, %edx
movl $1, %edx
cmovns %eax, %edx
xorl %esi, %esi
LBB1_2: # bb
movb _G(%eax), %bl
movb %bl, (%ecx,%eax)
llvm-svn: 45626
2008-01-05 09:18:04 +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
e0f0c4aa02
enable sinking and licm of loads from the argument area. I'd like to enable this
...
for remat, but can't due to an RA bug.
llvm-svn: 45623
2008-01-05 06:10:42 +00:00
d4738ee8e1
simplify some code by using shorter accessors.
...
llvm-svn: 45622
2008-01-05 05:28:30 +00:00
86f4a2e4f2
revert my previous patch.
...
llvm-svn: 45621
2008-01-05 05:26:26 +00:00
69d7902cf1
factor some code better to avoid redundancy between
...
isReallySideEffectFree and isReallyTriviallyReMaterializable. Why is a load from
a global considered side-effect-free but not rematable?
llvm-svn: 45620
2008-01-05 05:19:56 +00:00
9fa8ae6c6b
getting the pic base has no side effects.
...
llvm-svn: 45618
2008-01-05 03:54:32 +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
880b080887
X86 JIT PIC jumptable support.
...
llvm-svn: 45616
2008-01-05 02:26:58 +00:00
6ec78274df
fix a common crash.
...
llvm-svn: 45614
2008-01-05 01:39:17 +00:00
e666bc272d
remove a couple more unsafe xforms in the face of overflow.
...
llvm-svn: 45613
2008-01-05 01:22:42 +00:00
db026d703b
remove the (x-y) < 0 comparison xform, it miscompiles
...
things that are not equality comparisons, for example:
(2147479553+4096)-2147479553 < 0 != (2147479553+4096) < 2147479553
llvm-svn: 45612
2008-01-05 01:18:20 +00:00
3592b2352d
I should not be allowed to commit when sleepy.
...
llvm-svn: 45608
2008-01-05 00:48:55 +00:00
f55b7381af
Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed.
...
llvm-svn: 45605
2008-01-05 00:41:47 +00:00
6bb0c52628
Move some more functionality from MRegisterInfo to TargetInstrInfo.
...
llvm-svn: 45603
2008-01-04 23:57:37 +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
30e434569e
fix typo
...
llvm-svn: 45594
2008-01-04 20:02:18 +00:00
c1d1e54fc4
Unbreak tailcall opt in JIT.
...
llvm-svn: 45576
2008-01-04 10:50:28 +00:00
49ff8ecd03
X86 PIC JIT support fixes: encoding bugs, add lazy pointer stubs support.
...
llvm-svn: 45575
2008-01-04 10:46:51 +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
bdd6acfb59
Fix PR1896
...
llvm-svn: 45568
2008-01-04 05:04:53 +00:00
2e1ba07f16
Correct order of parameters.
...
llvm-svn: 45562
2008-01-04 02:22:21 +00:00
84cea329d5
Remove symbols that don't exist, remove tabs, fix comment typo
...
llvm-svn: 45553
2008-01-03 22:15:32 +00:00
f066fc477c
First steps in in X86 calling convention cleanup.
...
llvm-svn: 45536
2008-01-03 16:47:34 +00:00
f391883670
don't hoist FP additions into unconditional adds + selects. This
...
could theoretically introduce a trap, but is also a performance issue.
This speeds up ptrdist/ks by 8%.
llvm-svn: 45533
2008-01-03 07:25:26 +00:00
705dc51f2c
Fix PR1873, a problem finding stat-related symbols on linux, due to
...
"libc_nonshared.a". Patch by Edwin Török!
llvm-svn: 45532
2008-01-03 07:10:51 +00:00
7c87884ec3
Trying that again.
...
llvm-svn: 45529
2008-01-03 03:32:33 +00:00
8624d7b72e
Fix a compile error on Windows.
...
llvm-svn: 45528
2008-01-03 03:21:18 +00:00
563fcc3428
Change MachineRelocation::DoesntNeedFnStub to NeedStub. This fields will be used
...
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
76719ba5f1
Remove the function attr cache for intrinsics. This does not maintain the
...
refcount on these correctly, and can end up referring to deleted
attributes. This fixes PR1881.
llvm-svn: 45525
2008-01-03 01:20:12 +00:00
b18b0b99c6
Don't create a new ParamAttrsList (which copies the vector) just to
...
get a profile.
llvm-svn: 45524
2008-01-03 00:29:27 +00:00
d0e1f10078
move some code out of line, rearrange a bit.
...
llvm-svn: 45519
2008-01-03 00:10:22 +00:00
3e13b8c173
Split param attr implementation out from Function.cpp into its
...
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
d2b0e15535
add missing #include
...
llvm-svn: 45516
2008-01-02 23:41:05 +00:00
96334b4e3b
X86 PIC JIT bug fix: relocations for constantpool and jumptable.
...
llvm-svn: 45515
2008-01-02 23:38:59 +00:00
04cd35f88b
remove blob of #if'd out code.
...
llvm-svn: 45512
2008-01-02 23:10:45 +00:00
0acc15c470
Fix a build issue on cygwin
...
llvm-svn: 45506
2008-01-02 22:03:27 +00:00
0ba4184404
Use the correct MachineRegisterInfo object.
...
llvm-svn: 45499
2008-01-02 21:10:54 +00:00
e1f28e7871
Machine LICM will check that operands are defined outside of the loop. Also
...
check that register isn't 0 before going further.
llvm-svn: 45498
2008-01-02 21:10:40 +00:00
f0b37780ca
Remove dead code.
...
llvm-svn: 45496
2008-01-02 20:47:37 +00:00
cce79c67ca
darwin9 and above support aligned common symbols.
...
llvm-svn: 45494
2008-01-02 19:44:55 +00:00
dcbc0f3029
leopard and above support alignment for common symbols.
...
llvm-svn: 45493
2008-01-02 19:35:16 +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
d1200b00dc
Don't be rude, emit debugging info where asked to.
...
llvm-svn: 45485
2008-01-02 02:49:20 +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
097102c32a
Adding C bindings for SwitchInst::addCase.
...
Patch by Bryan O'Sullivan!
llvm-svn: 45481
2008-01-01 05:50:53 +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
b0fb17fd34
Fix a bug in my previous patch: refer to the impl not the pure virtual version. It's unclear why gcc would ever compile this...
...
llvm-svn: 45476
2008-01-01 01:05:34 +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
a10fff51d9
Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
...
that "machine" classes are used to represent the current state of
the code being compiled. Given this expanded name, we can start
moving other stuff into it. For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.
Update all the clients to match.
This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.
llvm-svn: 45467
2007-12-31 04:13:23 +00:00
a5bb370aa4
Add new shorter predicates for testing machine operands for various types:
...
e.g. MO.isMBB() instead of MO.isMachineBasicBlock(). I don't plan on
switching everything over, so new clients should just start using the
shorter names.
Remove old long accessors, switching everything over to use the short
accessor: getMachineBasicBlock() -> getMBB(),
getConstantPoolIndex() -> getIndex(), setMachineBasicBlock -> setMBB(), etc.
llvm-svn: 45464
2007-12-30 23:10:15 +00:00
6005589faf
More cleanups for MachineOperand:
...
- Eliminate the static "print" method for operands, moving it
into MachineOperand::print.
- Change various set* methods for register flags to take a bool
for the value to set it to. Remove unset* methods.
- Group methods more logically by operand flavor in MachineOperand.h
llvm-svn: 45461
2007-12-30 21:56:09 +00:00
c98c0e57eb
MachineOperand:
...
- Add getParent() accessors.
- Move SubReg out of the AuxInfo union, to make way for future changes.
- Remove the getImmedValue/setImmedValue methods.
- in some MachineOperand::Create* methods, stop initializing fields that are dead.
MachineInstr:
- Delete one copy of the MachineInstr printing code, now there is only one dump
format and one copy of the code.
- Make MachineOperand use the parent field to get info about preg register names if
no target info is otherwise available.
- Move def/use/kill/dead flag printing to the machineoperand printer, so they are
always printed for an operand.
llvm-svn: 45460
2007-12-30 21:31:53 +00:00
96317d2412
fix typo duncan noticed!
...
llvm-svn: 45459
2007-12-30 21:21:10 +00:00
35fececec9
simpilfy some register printing code.
...
llvm-svn: 45458
2007-12-30 21:08:36 +00:00
383a873a9a
eliminate a copy of the machineoperand printing stuff. Keep the copy that
...
knows how to print offsets.
llvm-svn: 45457
2007-12-30 21:03:30 +00:00
49bd29daa0
Simplify and clean up some machine operand/instr printing/dumping stuff.
...
llvm-svn: 45456
2007-12-30 21:01:27 +00:00
0dad74d252
two register machineoperands are not identical unless their subregs match.
...
llvm-svn: 45455
2007-12-30 20:55:08 +00:00
81798417dc
MachineOperand::getImmedValue -> MachineOperand::getImm
...
llvm-svn: 45454
2007-12-30 20:50:28 +00:00
5c4637816e
Use MachineOperand::getImm instead of MachineOperand::getImmedValue. Likewise setImmedValue -> setImm
...
llvm-svn: 45453
2007-12-30 20:49:49 +00:00
4a4d73519e
Add some doxygen comments to llvm-c/Core.h.
...
llvm-svn: 45450
2007-12-30 17:46:33 +00:00
3c6ce5b43c
make machine operands fatter: give each one an up-pointer to the
...
machineinstr that owns it.
llvm-svn: 45449
2007-12-30 06:11:04 +00:00
7749a9014b
If we have a load of a global address that's not modified during the
...
function, then go ahead and hoist it out of the loop. This is the result:
$ cat a.c
volatile int G;
int A(int N) {
for (; N > 0; --N)
G++;
}
$ llc -o - -relocation-model=pic
_A:
...
LBB1_2: # bb
movl L_G$non_lazy_ptr-"L1$pb"(%eax), %esi
incl (%esi)
incl %edx
cmpl %ecx, %edx
jne LBB1_2 # bb
...
$ llc -o - -relocation-model=pic -machine-licm
_A:
...
movl L_G$non_lazy_ptr-"L1$pb"(%eax), %eax
LBB1_2: # bb
incl (%eax)
incl %edx
cmpl %ecx, %edx
jne LBB1_2 # bb
...
I'm limiting this to the MOV32rm x86 instruction for now.
llvm-svn: 45444
2007-12-30 03:18:58 +00:00
b3fd2d7b63
use simplified operand addition methods.
...
llvm-svn: 45437
2007-12-30 01:01:54 +00:00
20421fe936
use simplified operand addition methods.
...
llvm-svn: 45436
2007-12-30 00:57:42 +00:00
bbbae8e1ce
use simplified operand addition methods.
...
llvm-svn: 45435
2007-12-30 00:51:11 +00:00
4b762496a9
Shrinkify the machine operand creation method names.
...
llvm-svn: 45433
2007-12-30 00:45:46 +00:00
e35dfb827f
Start using the simplified methods for adding operands.
...
llvm-svn: 45432
2007-12-30 00:41:17 +00:00
c288ff1d78
simplify some code by factoring operand construction better.
...
llvm-svn: 45428
2007-12-30 00:12:25 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
a087a8d2ce
remove attribution from lib Makefiles.
...
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
4e6cbb2fe2
this is done.
...
llvm-svn: 45408
2007-12-29 19:38:02 +00:00
d2b8a36f0e
One readme entry is done, one is really easy (Evan, want to investigate
...
eliminating the llvm.x86.sse2.loadl.pd intrinsic?), one shuffle optzn
may be done (if shufps is better than pinsw, Evan, please review), and
we already know about LICM of simple instructions.
llvm-svn: 45407
2007-12-29 19:31:47 +00:00
3b6a82118b
Fold comparisons against a constant nan, and optimize ORD/UNORD
...
comparisons with a constant. This allows us to compile isnan to:
_foo:
fcmpu cr7, f1, f1
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
instead of:
LCPI1_0: ; float
.space 4
_foo:
lis r2, ha16(LCPI1_0)
lfs f0, lo16(LCPI1_0)(r2)
fcmpu cr7, f1, f0
mfcr r2
rlwinm r3, r2, 0, 31, 31
blr
llvm-svn: 45405
2007-12-29 08:37:08 +00:00
33de0c6e92
this xform is implemented.
...
llvm-svn: 45404
2007-12-29 08:19:39 +00:00
b053b80b79
Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.
...
llvm-svn: 45403
2007-12-29 07:56:53 +00:00
2de9b85297
make sure not to zap volatile stores, thanks a lot to Dale for noticing this!
...
llvm-svn: 45402
2007-12-29 07:15:45 +00:00
07ccbfa64a
Codegen:
...
as:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstps (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
instead of:
_bar:
pushl %esi
subl $8, %esp
movl 16(%esp), %esi
call L_foo$stub
fstpl (%esi)
cvtsd2ss (%esi), %xmm0
movss %xmm0, (%esi)
addl $8, %esp
popl %esi
#FP_REG_KILL
ret
llvm-svn: 45401
2007-12-29 06:57:38 +00:00
5919b48fe9
don't fold fp_round(fp_extend(load)) -> fp_round(extload)
...
llvm-svn: 45400
2007-12-29 06:55:23 +00:00
8013bd339b
avoid going through a stack slot to convert from fpstack to xmm reg
...
if we are just going to store it back anyway. This improves things
like:
double foo();
void bar(double *P) { *P = foo(); }
llvm-svn: 45399
2007-12-29 06:41:28 +00:00
3f9c6a7260
Delete a store whose input is a load from the same pointer:
...
x = load p
store x -> p
llvm-svn: 45398
2007-12-29 06:26:16 +00:00
62ba67c0f7
add a note
...
llvm-svn: 45397
2007-12-29 05:51:58 +00:00
7cafd92aa9
expand note.
...
llvm-svn: 45393
2007-12-29 01:05:01 +00:00
e96658392d
dead calls to llvm.stacksave can be deleted, even though they
...
have potential side-effects.
llvm-svn: 45392
2007-12-29 00:59:12 +00:00
9d53b611d1
add a note.
...
llvm-svn: 45388
2007-12-28 22:30:05 +00:00
d798002401
add a note.
...
llvm-svn: 45387
2007-12-28 21:50:40 +00:00
7363914ef7
Repair a transform that Chris noticed a bug in. Thanks to Nicholas for pointing out my stupid mistakes when writing this patch. :-)
...
llvm-svn: 45384
2007-12-28 07:42:12 +00:00
5179819beb
disable this instcombine xform, it miscompiles:
...
define i32 @main() {
entry:
%z = alloca i32 ; <i32*> [#uses=2]
store i32 0, i32* %z
%tmp = load i32* %z ; <i32> [#uses=1]
%sub = sub i32 %tmp, 1 ; <i32> [#uses=1]
%cmp = icmp ult i32 %sub, 0 ; <i1> [#uses=1]
%retval = select i1 %cmp, i32 1, i32 0 ; <i32> [#uses=1]
ret i32 %retval
}
into ret 1, instead of ret 0.
Christopher, please investigate.
llvm-svn: 45383
2007-12-28 06:24:31 +00:00
180f0e9044
add a note
...
llvm-svn: 45377
2007-12-28 04:42:05 +00:00
4f00f531ad
Ignore functions with internal linkages during linking. This snipped mimics the
...
behaviour of LinkGlobals() function.
llvm-svn: 45375
2007-12-27 23:21:57 +00:00
05568bbd98
Adding bindings for target triple and data layout.
...
llvm-svn: 45369
2007-12-27 20:13:47 +00:00
823f9730d7
Switch the bindings to use LLVMFoldingBuilder.
...
llvm-svn: 45367
2007-12-27 18:25:59 +00:00
520e64c0c2
Fixing several transforms which would drop the collector attribute
...
when copying functions.
llvm-svn: 45356
2007-12-25 22:16:06 +00:00
ef1bbfc762
Don't break critical edges for single-bb loops, this helps with PR1877, though
...
it is only a partial fix. This change is noise for most programs, but
speeds up Shootout-C++/matrix by 20%, Ptrdist/ks by 24%, smg2000 by 8%,
hexxagon by 9%, bzip2 by 9% (not sure I trust this), ackerman by 13%, etc.
OTOH, it slows down Shootout/fib2 by 40% (I'll update PR1877 with this info).
llvm-svn: 45354
2007-12-25 19:06:45 +00:00
b969c5981b
GC poses hazards to the inliner. Consider:
...
define void @f() {
...
call i32 @g()
...
}
define void @g() {
...
}
The hazards are:
- @f and @g have GC, but they differ GC. Inlining is invalid. This
may never occur.
- @f has no GC, but @g does. g's GC must be propagated to @f.
The other scenarios are safe:
- @f and @g have the same GC.
- @f and @g have no GC.
- @g has no GC.
This patch adds inliner checks for the former two scenarios.
llvm-svn: 45351
2007-12-25 03:10:07 +00:00
fb56bde933
Noting and enforcing that GC intrinsics are valid only within a
...
function with GC.
This will catch the error when the inliner inlines a function with
GC into a caller with no GC.
llvm-svn: 45350
2007-12-25 02:31:26 +00:00
9157c499fc
Adjusting verification of "llvm.gc*" intrinsic prototypes to match
...
LangRef.
llvm-svn: 45349
2007-12-25 02:02:10 +00:00
bccb8c432d
Flesh out the Briggs implementation a little bit more, fix a few FIXMEs.
...
llvm-svn: 45347
2007-12-24 22:12:23 +00:00
62a806d565
add a -backedge-hack llc-beta option to codegenprepare.
...
When specified, don't split backedges of single-bb loops.
This helps address PR1877
llvm-svn: 45344
2007-12-24 19:32:55 +00:00
6c234bf58f
add a simple hack
...
llvm-svn: 45343
2007-12-24 19:27:46 +00:00
ee6af40c95
Cygwin defines uint32_t as unsigned long. Unbreak call to std::min in this case
...
llvm-svn: 45342
2007-12-24 11:16:47 +00:00
84c7325ca1
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: 45338
2007-12-23 20:58:16 +00:00
2a8cd89d03
C and Ocaml bindings for ExecutionEngine (i.e., the JIT compiler).
...
llvm-svn: 45335
2007-12-23 16:59:28 +00:00
e110199916
Sketch out an implementation of Briggs' copy placement algorithm.
...
llvm-svn: 45334
2007-12-23 15:37:26 +00:00
00602f6105
fix some warnings. This code needs to be de-tabified :(
...
llvm-svn: 45325
2007-12-22 22:47:03 +00:00
91f3379660
fix strict-aliasing violation
...
llvm-svn: 45324
2007-12-22 22:45:38 +00:00
de272b1b63
initial code for forming an FGETSIGN node. This is disabled until
...
legalizer support goes in.
llvm-svn: 45323
2007-12-22 21:35:38 +00:00
afc8f13bf5
improve support for fgetsign
...
llvm-svn: 45322
2007-12-22 21:26:52 +00:00
efd1cddb5a
Tell TargetLoweringOpt whether it is running before
...
or after legalize.
llvm-svn: 45321
2007-12-22 20:56:36 +00:00
843cad4df2
Add a new FGETSIGN operation, which defaults to expand on all
...
targets.
llvm-svn: 45320
2007-12-22 20:47:56 +00:00
1b1250770c
Erm, really disable :)
...
llvm-svn: 45319
2007-12-22 20:46:24 +00:00
d34112a4ee
Disable, until we'll really need it
...
llvm-svn: 45318
2007-12-22 20:41:12 +00:00
41689b52ab
Use getIntrinsicID instead of looking up intrinsic prototypes. Also
...
fixes a bug with indirect calls. (Test case will be included with
ocaml collector patch.)
llvm-svn: 45316
2007-12-22 17:27:01 +00:00
2ffb2c9e59
Unbreak mingw build
...
llvm-svn: 45314
2007-12-22 14:26:49 +00:00
345a00ba05
Preliminary PIC JIT support for X86 (32-bit) / Darwin.
...
llvm-svn: 45313
2007-12-22 09:40:20 +00:00
db33a0211b
Oops.
...
llvm-svn: 45312
2007-12-22 09:14:34 +00:00
74b2ab59fd
implement InstCombine/shift-trunc-shift.ll. This allows
...
us to compile:
#include <math.h>
int t1(double d) { return signbit(d); }
into:
_t1:
movd %xmm0, %rax
shrq $63, %rax
ret
instead of:
_t1:
movd %xmm0, %rax
shrq $32, %rax
shrl $31, %eax
ret
on x86-64.
llvm-svn: 45311
2007-12-22 09:07:47 +00:00
5a4c05d047
Note what still needs doing.
...
llvm-svn: 45310
2007-12-22 04:59:10 +00:00
4534100765
Remove critical edge breaking. It won't be necessary as long as we are very careful when inserting copies.
...
llvm-svn: 45309
2007-12-22 04:50:11 +00:00
f4f52dbc8c
Fix JIT code emission of X86::MovePCtoStack.
...
llvm-svn: 45307
2007-12-22 02:26:46 +00:00
7a2c66b11e
If succ has succ itself as one of the predecessors then do
...
not merge current bb and succ even if bb's terminator is
unconditional branch to succ.
llvm-svn: 45305
2007-12-22 01:32:53 +00:00
ac134551c6
Allow JIT with non-static relocation model.
...
llvm-svn: 45304
2007-12-22 01:12:14 +00:00
1e8c1308bb
Fix silly typo in the FP CEP handling.
...
llvm-svn: 45300
2007-12-21 23:33:44 +00:00
85f26f28b9
Fix a brain fart by our beloved leader (the content
...
of this patch is the last line).
llvm-svn: 45289
2007-12-21 20:18:41 +00:00
8c5822802e
Get the verifier to check attributes on calls as well
...
as on functions. Make it verify invokes and not just
ordinary calls. As a (desired) side-effect, it is no
longer legal to have call attributes on arguments that
are being passed to the varargs part of a varargs
function (llvm-as drops them on the floor anyway).
llvm-svn: 45286
2007-12-21 19:19:01 +00:00
6a7703ed63
Make DAE not wipe out attributes on calls, and not drop
...
return attributes on the floor. In the case of a call
to a varargs function where the varargs arguments are
being removed, any call attributes on those arguments
need to be dropped. I didn't do this because I plan to
make it illegal to have such attributes (see next patch).
With this change, compiling the gcc filter2 eh test at -O0
and then running opt -std-compile-opts on it results in
a correctly working program (compiling at -O1 or higher
results in the test failing due to a problem with how we
output eh info into the IR).
llvm-svn: 45285
2007-12-21 19:16:16 +00:00
31a2c3948e
Fix unintented change from last commit
...
llvm-svn: 45282
2007-12-21 12:22:29 +00:00
80c741e160
Enable EH for linux/ppc32 targets
...
llvm-svn: 45281
2007-12-21 12:19:44 +00:00
78c460c8c4
New entry.
...
llvm-svn: 45280
2007-12-21 01:31:58 +00:00
01c7c198ee
Fix JIT encoding for CMPSD as well.
...
llvm-svn: 45268
2007-12-20 19:57:09 +00:00
f989141d30
More accurate checks for two-address constraints.
...
llvm-svn: 45259
2007-12-20 09:25:31 +00:00
7d82bc46b8
Implement review feedback, including additional transforms
...
(icmp slt (sub A B) 1) -> (icmp sle A B)
icmp sgt (sub A B) -1) -> (icmp sge A B)
and add testcase.
llvm-svn: 45256
2007-12-20 07:21:11 +00:00
a509537e25
The physical register + virtual register joining requirement was much too strict.
...
llvm-svn: 45253
2007-12-20 02:23:25 +00:00
61bc51ee97
Bring back a burr scheduling heuristic that's still needed.
...
llvm-svn: 45252
2007-12-20 02:22:36 +00:00
26ee54eb05
Clean up previous patch: PHI uses should not prevent iv reuse if all other uses are addresses. This trades a constant multiply for one fewer iv.
...
llvm-svn: 45251
2007-12-20 02:20:53 +00:00
16a51da0e2
simplify this code with the new m_Zero() pattern. Make sure the select only
...
has a single use, and generalize it to not require N to be a constant.
llvm-svn: 45250
2007-12-20 01:56:58 +00:00
65c001e6bc
Updated comments to reflect what "side effects" means in this situation.
...
llvm-svn: 45245
2007-12-20 01:08:10 +00:00
5f1470f03a
More working CellSPU tests:
...
- vec_const.ll: Vector constant loads
- immed64.ll: i64, f64 constant loads
llvm-svn: 45242
2007-12-20 00:44:13 +00:00
e2a8ba7fec
Allow iv reuse if the user is a PHI node which is in turn used as addresses.
...
llvm-svn: 45230
2007-12-19 23:33:23 +00:00
34eb6d877e
Adding bindings for memory buffers and module providers. Switching
...
to exceptions rather than variants for error handling in Ocaml.
llvm-svn: 45226
2007-12-19 22:30:40 +00:00
eadbf4b91c
Enable EH on PPC Darwin. This basically works; there
...
are a couple of issues that show up with the optimizer,
but I don't think they're really EH problems.
(llvm-gcc testsuite users note: By default the testsuite
uses the unwinding code that's built as part of your local
llvm-gcc, which does not work. You need to trick it into
using the installed system unwinding code to get useful
results.)
llvm-svn: 45221
2007-12-19 21:54:36 +00:00
5ecac82f71
CellSPU testcase, extract_elt.ll: extract vector element.
...
llvm-svn: 45219
2007-12-19 21:17:42 +00:00
aa31b92508
When inlining through an 'nounwind' call, mark inlined
...
calls 'nounwind'. It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.
llvm-svn: 45218
2007-12-19 21:13:37 +00:00
098c113bc8
Two more test cases: or_ops.ll (arithmetic or operations) and vecinsert.ll
...
(vector insertions)
llvm-svn: 45216
2007-12-19 20:15:47 +00:00
e9d8861cdf
Simplify LowerCallTo by using a callsite.
...
llvm-svn: 45198
2007-12-19 09:48:52 +00:00
030bce7b83
The C++ exception handling personality function wants
...
to know about calls that cannot throw ('nounwind'):
if such a call does throw for some reason then the
personality will terminate the program. The distinction
between an ordinary call and a nounwind call is that
an ordinary call gets an entry in the exception table
but a nounwind call does not. This patch sets up the
exception table appropriately. One oddity is that
I've chosen to bracket nounwind calls with labels (like
invokes) - the other choice would have been to bracket
ordinary calls with labels. While bracketing
ordinary calls is more natural (because bracketing
by labels would then correspond exactly to getting an
entry in the exception table), I didn't do it because
introducing labels impedes some optimizations and I'm
guessing that ordinary calls occur more often than
nounwind calls. This fixes the gcc filter2 eh test,
at least at -O0 (the inliner needs some tweaking at
higher optimization levels).
llvm-svn: 45197
2007-12-19 07:36:31 +00:00
9b834469e0
Add new immed16.ll test case, fix CellSPU errata to make test case work.
...
llvm-svn: 45196
2007-12-19 07:35:06 +00:00
ca77ecb40a
Mark the "isRemat" instruction as never having side effects.
...
llvm-svn: 45190
2007-12-19 06:07:48 +00:00
9f06e5e2df
Don't leave newly created nodes around if it turns out they are not needed.
...
llvm-svn: 45186
2007-12-19 01:34:38 +00:00
14020706d8
Added "GetCurrentDirectory()" to sys::Path.
...
llvm-svn: 45182
2007-12-18 22:07:33 +00:00
166f746246
Add debugging info. Use the newly created "hasUnmodelledSideEffects" method.
...
llvm-svn: 45178
2007-12-18 21:38:04 +00:00
f00ac6dd93
Fold subtracts into integer compares vs. zero. This improves generate code for this case on X86
...
from
_foo:
movl $99, %ecx
movl 4(%esp), %eax
subl %eax, %ecx
xorl %edx, %edx
testl %ecx, %ecx
cmovs %edx, %eax
ret
to
_foo:
xorl %ecx, %ecx
movl 4(%esp), %eax
cmpl $99, %eax
cmovg %ecx, %eax
ret
llvm-svn: 45173
2007-12-18 21:32:20 +00:00
95cc3e0e66
Support more insane CEP's in AsmPrinter (Yes, PyPy folks do really use them).
...
llvm-svn: 45172
2007-12-18 20:53:41 +00:00
b7016c53d1
Fix comments
...
llvm-svn: 45170
2007-12-18 20:33:11 +00:00
74dbad9216
Remove an orthogonal transformation of the selection condition from my most recent submission.
...
llvm-svn: 45169
2007-12-18 20:30:28 +00:00
74db04261b
Added "isDirectory" method to llvm::sys::Path.
...
llvm-svn: 45168
2007-12-18 19:46:22 +00:00
483a969ece
Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id.
...
llvm-svn: 45167
2007-12-18 19:38:14 +00:00
5f47cae3ce
remove obviously dead uses of IncludeFile.
...
llvm-svn: 45165
2007-12-18 19:15:48 +00:00
78ced47a2f
Also print alignment and volatileness.
...
llvm-svn: 45164
2007-12-18 19:06:30 +00:00
d92e71cf9a
remove a dead annotation
...
llvm-svn: 45163
2007-12-18 19:04:24 +00:00
2583a66295
add an obvious load folding missed optzn.
...
llvm-svn: 45161
2007-12-18 16:48:14 +00:00
3353ed09ac
Rename isNoReturn to doesNotReturn, and isNoUnwind to
...
doesNotThrow.
llvm-svn: 45160
2007-12-18 09:59:50 +00:00
30291f4a30
Fix typos.
...
llvm-svn: 45159
2007-12-18 09:45:40 +00:00
8b09a464b4
Fold certain additions through selects (and their compares) so as to eliminate subtractions. This code is often produced by the SMAX expansion in SCEV.
...
This implements test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll
llvm-svn: 45158
2007-12-18 09:34:41 +00:00
91e0fc9cb4
FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit.
...
llvm-svn: 45157
2007-12-18 08:42:10 +00:00
e2dbba5828
SelectionDAG::dump() should print SrcValue of LoadSDNode and StoreSDNode.
...
llvm-svn: 45151
2007-12-18 07:02:08 +00:00
ac7d631ed2
Don't forget to print address space qualifiers when printing out the type table! Thanks to Gordon Henriksen for pointing this out.
...
llvm-svn: 45147
2007-12-18 03:49:35 +00:00
52a9e40789
add a missed case.
...
llvm-svn: 45141
2007-12-18 01:19:18 +00:00
a8288f4294
Remove int_x86_sse2_movl_dq. It's replaced with a string compare.
...
llvm-svn: 45140
2007-12-18 01:04:25 +00:00
b3d85a5d4b
Add "mayHaveSideEffects" and "neverHasSideEffects" flags to some instructions. I
...
based what flag to set on whether it was already marked as
"isRematerializable". If there was a further check to determine if it's "really"
rematerializable, then I marked it as "mayHaveSideEffects" and created a check
in the X86 back-end similar to the remat one.
llvm-svn: 45132
2007-12-17 23:07:56 +00:00
0e179d015f
Bring back int_x86_sse2_movl_dq intrinsic for backward compatibility. Make sure
...
it's auto-upgraded to a shufflevector instruction.
llvm-svn: 45131
2007-12-17 22:33:23 +00:00
c5cccb9e60
- Restore some i8 functionality in CellSPU
...
- New test case: nand.ll
llvm-svn: 45130
2007-12-17 22:32:34 +00:00
bd5362511d
Modified Deserializer::ReadCStr to allow C-strings to be read into a
...
std::vector<char> starting from any index in the vector.
llvm-svn: 45129
2007-12-17 22:25:12 +00:00
a2401be121
LD_Fp64m should have "isRematerializable" set.
...
llvm-svn: 45128
2007-12-17 22:17:14 +00:00
939526a930
As per feedback, revised comments to (hopefully) make the different side effect
...
flags clearer.
llvm-svn: 45120
2007-12-17 21:02:07 +00:00
b5a79d0eaa
Make invokes of inline asm legal. Teach codegen
...
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).
llvm-svn: 45108
2007-12-17 18:08:19 +00:00
71eae8a5ee
GLIBCXX_DEBUG fix. std::vector<>::end() is invalidated by erase.
...
llvm-svn: 45101
2007-12-17 17:42:03 +00:00
c4a80fb574
Get rid of annoying spaces.
...
llvm-svn: 45100
2007-12-17 17:40:29 +00:00
2a5967b36a
Fix GLIBCXX_DEBUG errors. Erase invalidates std::vector iterators
...
passed the erased element.
llvm-svn: 45099
2007-12-17 17:39:51 +00:00
5a3fe03784
C and Ocaml bindings for address spaces, for that burgeoning market
...
for Ocaml-based compilers targeting embedded devices. :)
llvm-svn: 45096
2007-12-17 16:08:32 +00:00
083bb46370
regenerate.
...
llvm-svn: 45085
2007-12-17 01:17:35 +00:00
edf0788758
Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
...
llvm-svn: 45082
2007-12-17 01:12:55 +00:00
55c6d4f22f
Make it clear in the LangRef that allocation instructions only operated on the generic address space. Implement support in the verifier for ensuring this is true.
...
llvm-svn: 45080
2007-12-17 01:00:21 +00:00
56ed48036b
Revert this part of r45073 until the verifier is
...
changed not to reject invoke of inline asm.
llvm-svn: 45077
2007-12-16 21:01:21 +00:00
2af27c202c
don't violate C TBAA rules, use FloatToBits instead.
...
llvm-svn: 45076
2007-12-16 20:41:33 +00:00
e3b05fe31b
fix a questionable cast, thanks to Mike Stump for pointing this out.
...
llvm-svn: 45075
2007-12-16 20:26:54 +00:00
dab6bd902e
Fix the JIT encoding of cmp*ss, which aborts with this assertion currently:
...
X86CodeEmitter.cpp:378: failed assertion `0 && "Immediate size not set!"'
I *think* this is right, but Evan, please verify. It also looks like
CMPSDrr and maybe others are missing this info. Evan, plz investigate.
llvm-svn: 45074
2007-12-16 20:12:41 +00:00
8e4847ee95
Make instcombine promote inline asm calls to 'nounwind'
...
calls. Remove special casing of inline asm from the
inliner. There is a potential problem: the verifier
rejects invokes of inline asm (not sure why). If an
asm call is not marked "nounwind" in some .ll, and
instcombine is not run, but the inliner is run, then
an illegal module will be created. This is bad but
I'm not sure what the best approach is. I'm tempted
to remove the check in the verifier...
llvm-svn: 45073
2007-12-16 15:51:49 +00:00
fcf2085731
Remove spurious warnings from GCC:
...
warning: suggest a space before ';' or explicit braces around empty
body in 'for' statement
Patch by Mike Stump (modified slightly by yours truly).
llvm-svn: 45071
2007-12-16 09:16:12 +00:00
7b8a741189
Break local interferences in StrongPHIElimination. One step closer...
...
llvm-svn: 45070
2007-12-16 05:44:27 +00:00
ccb3981256
A few more comments.
...
llvm-svn: 45069
2007-12-16 04:07:23 +00:00
26d6539e70
These are more correctly called signaling NaNs.
...
llvm-svn: 45059
2007-12-15 17:37:40 +00:00
23d2d4dc6c
Make better use of instructions that clear high bits; fix various 2-wide shuffle bugs.
...
llvm-svn: 45058
2007-12-15 03:00:47 +00:00
0aa7133f82
Start committing working test cases for CellSPU.
...
llvm-svn: 45050
2007-12-15 00:38:50 +00:00
9556729128
Actually, MOVPQIto64mr is a dup of MOVPQI2QImr, MOV64toPQIrm is a dup of MOVQI2PQIrm.
...
llvm-svn: 45041
2007-12-14 20:08:14 +00:00
e28372c0d6
Fix (mem) <-> low 64-bits of xmm bugs pointed out by David Greene. Mac OS X Leopard assembler recognizes movq.
...
llvm-svn: 45040
2007-12-14 19:54:07 +00:00
1202d1b1c4
Teach the interpreter to read and write memory in the
...
endianness of the target not of the host. Done by the
simple expedient of reversing bytes for primitive types
if the host and target endianness don't match. This is
correct for integer and pointer types. I don't know if
it is correct for floating point types.
llvm-svn: 45039
2007-12-14 19:38:31 +00:00
f7cefdd5f0
x86-32 long doubles are 4-byte aligned on the stack
...
for parameter passing (only for that, on Darwin).
llvm-svn: 45038
2007-12-14 19:25:34 +00:00
a56e6ff9a7
Fix bsf / bsr jit encoding.
...
llvm-svn: 45037
2007-12-14 18:49:43 +00:00
f28c810036
Oops. Forgot these.
...
llvm-svn: 45036
2007-12-14 18:25:34 +00:00
8a332b235d
Add explicit keywords, and fix a minor typo that they uncovered.
...
llvm-svn: 45034
2007-12-14 15:41:34 +00:00
9d2e9e376f
Fix Intel asm syntax for the bsr and bsf instructions.
...
llvm-svn: 45030
2007-12-14 15:10:00 +00:00
0e6408124e
Fix ctlz and cttz. llvm definition requires them to return number of bits in of the src type when value is zero.
...
llvm-svn: 45029
2007-12-14 08:30:15 +00:00
0fcf56f8f5
Bug fix. Must also match ResNo when matching an operand with a user.
...
llvm-svn: 45028
2007-12-14 08:25:15 +00:00
f924f34b6b
All MMX shift instructions took a <2 x i32> vector as the shift amount parameter. Change this to be <1 x i64> instead, which matches the assembler instruction.
...
llvm-svn: 45027
2007-12-14 06:38:54 +00:00
e9fbc3f014
Implement ctlz and cttz with bsr and bsf.
...
llvm-svn: 45024
2007-12-14 02:13:44 +00:00
cb77f04e1f
Add flags to indicate that there are "never" side effects or that there "may be"
...
side effects for machine instructions.
llvm-svn: 45022
2007-12-14 01:48:59 +00:00
86d51b896e
Make these loops follow GetGEPOperands() behavior.
...
Let: %q = GEP %p, X, ...
If %p is a GEP, we can chase baseptr further, only if X==0.
llvm-svn: 44999
2007-12-13 16:22:58 +00:00
2011df4e39
Fix typo.
...
llvm-svn: 44997
2007-12-13 07:50:36 +00:00
53b677e4e8
Add register pairs to the list to check for local interferences.
...
llvm-svn: 44987
2007-12-13 05:53:03 +00:00
1f93edd08a
Remove ugly and horrible code. It's not necessary for correctness, and can be added back later if it causes code quality issues.
...
llvm-svn: 44986
2007-12-13 05:43:37 +00:00
37c36ed79a
Be extra careful with extension use optimation. Now turned on by default.
...
llvm-svn: 44981
2007-12-13 03:32:53 +00:00
827d30db19
Fold some and + shift in x86 addressing mode.
...
llvm-svn: 44970
2007-12-13 00:43:27 +00:00
f0fbf077d2
Fix for edge profiling, patch by 'Marc' for PR1857
...
llvm-svn: 44965
2007-12-13 00:04:46 +00:00
6e68381e02
Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.
...
llvm-svn: 44960
2007-12-12 23:12:09 +00:00
fde556745b
Remove host endianness info from TargetData and
...
put it in a new header System/Host.h instead.
Instead of getting the endianness from configure,
calculate it directly.
llvm-svn: 44959
2007-12-12 23:03:45 +00:00
7a7742c2fe
Allow vector integer constants to be created with
...
SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.
llvm-svn: 44954
2007-12-12 22:21:26 +00:00
9ab0943b86
Revert r44626, which turned off the use of readonly
...
and readnone for functions with bodies because it
broke llvm-gcc-4.2 bootstrap. It turns out that,
because of LLVM's array_ref hack, gcc was computing
pure/const attributes wrong (now fixed by turning
off the gcc ipa-pure-const pass).
llvm-svn: 44937
2007-12-12 16:01:40 +00:00
309e5a723b
1. "Upgrage" comments.
...
2. Using zero-extended value of Scale and unsigned division is safe provided
that Scale doesn't have the sign bit set.
Previously these 2 instructions:
%p = bitcast [100 x {i8,i8,i8}]* %x to i8*
%q = getelementptr i8* %p, i32 -4
were combined into:
%q = getelementptr [100 x { i8, i8, i8 }]* %x, i32 0,
i32 1431655764, i32 0
what was incorrect.
llvm-svn: 44936
2007-12-12 15:21:32 +00:00
17c405d29e
Regenerate.
...
llvm-svn: 44934
2007-12-12 08:45:45 +00:00
25f5076612
Implement part of review feedback for address spaces.
...
llvm-svn: 44933
2007-12-12 08:44:39 +00:00
0f42730722
Use shuffles to implement insert_vector_elt for i32, i64, f32, and f64.
...
llvm-svn: 44929
2007-12-12 07:55:34 +00:00
2a98956796
Lower a build_vector with all constants into a constpool load unless it can be done with a move to low part.
...
llvm-svn: 44921
2007-12-12 06:45:40 +00:00
3115ba39e8
Add a guard to cxxabi header as other platform may
...
not support it.
llvm-svn: 44914
2007-12-12 06:16:47 +00:00
ed5d693d67
Fixed PR1629.
...
Make lli interpreter correctly call external functions sin()/cos(),
__cxa_guard_acquire() and __cxa_guard_release().
llvm-svn: 44910
2007-12-12 04:55:43 +00:00
b3ba3d9827
Fix a bug in my previous patch, thanks to Jay Foad for
...
pointing this out and correcting the patch!
llvm-svn: 44907
2007-12-12 03:56:54 +00:00
63d33cfd2b
Don't muck with phi nodes; bug fixes.
...
llvm-svn: 44905
2007-12-12 02:53:41 +00:00
4a8bc7e105
Correct typo for Linux: s/esp/%rsp/
...
llvm-svn: 44904
2007-12-12 02:38:28 +00:00
499e5bffcf
Forgot to remove a register from the PHI-union after I'd determined that it
...
interfered with other registers. Seems like that might be a good thing to do. :-)
llvm-svn: 44902
2007-12-12 01:25:08 +00:00
0a68fe2ffc
Add (very basic) bindings for ModuleProvider.
...
llvm-svn: 44899
2007-12-12 01:04:30 +00:00
7bc8942532
Bug fix. Only safe to perform extension uses optimization if the source of extension is also defined in the same BB as the extension.
...
llvm-svn: 44896
2007-12-12 00:51:06 +00:00
0af43a1895
Changes from Curtis Dunham implementing lazy cycle detection algorithm.
...
Changes from me implementing different way of representing points-to anything.
Changes from me that improve slightly on LCD.
llvm-svn: 44895
2007-12-12 00:37:04 +00:00
6766d2fa4f
If deleting a reload instruction due to reuse (value is available in register R and reload is targeting R), make sure to invalidate the kill information of the last kill.
...
llvm-svn: 44894
2007-12-11 23:36:57 +00:00
38236ef6cb
Need to grow the indexed map. Added debug statements.
...
llvm-svn: 44892
2007-12-11 23:27:51 +00:00
642e15a7cb
Simplify slightly.
...
llvm-svn: 44881
2007-12-11 22:22:22 +00:00
f24dd1c1eb
More progress on StrongPHIElimination. Now we actually USE the DomForest!
...
llvm-svn: 44877
2007-12-11 20:12:11 +00:00
b678ae7c38
Blark! How in the world did this work without this?!
...
llvm-svn: 44874
2007-12-11 19:40:06 +00:00
7717a8a37d
- Update the virtual reg to machine instruction map when hoisting.
...
- Fix subtle bug when creating initially creating this map.
llvm-svn: 44873
2007-12-11 19:17:04 +00:00
5143d898c8
Checking for "zero operands" during the "CanHoistInst()" method isn't necessary
...
because those with side effects will be caught by other checks in here.
Also, simplify the check for a BB in a sub loop.
llvm-svn: 44871
2007-12-11 18:45:11 +00:00
6dc8b4ed13
Allow the JIT to encode MMX instructions
...
llvm-svn: 44869
2007-12-11 18:06:14 +00:00
f41217d4fa
Fix compilation.
...
llvm-svn: 44864
2007-12-11 12:20:47 +00:00
e92cba4535
Regenerate.
...
llvm-svn: 44859
2007-12-11 09:02:08 +00:00
54dd24c2a7
Implement address space attribute for LLVM pointer types. Address spaces are
...
regions of memory that have a target specific relationship, as described in the
Embedded C Technical Report.
This also implements the 2007-12-11-AddressSpaces test,
which demonstrates how address space attributes can be used in LLVM IR.
In addition, this patch changes the bitcode signature for stores (in a backwards
compatible manner), such that the pointer type, rather than the pointee type, is
encoded. This permits type information in the pointer (e.g. address space) to be
preserved for stores.
LangRef updates are forthcoming.
llvm-svn: 44858
2007-12-11 08:59:05 +00:00
8e6a8f984c
Teach VMCore to constant fold shufflevectors with constant operands.
...
This allows us to compile:
#include <emmintrin.h>
typedef __m128i VSInt16;
typedef short vSInt16 __attribute__ ((__vector_size__ (16)));
VSInt16 t3() {
return (VSInt16)((vSInt16)_mm_set1_epi16(6518));
}
into:
_t3:
movaps LCPI1_0, %xmm0
ret
instead of:
_t3:
movl $6518, %eax
movd %eax, %xmm0
pextrw $0, %xmm0, %eax
xorps %xmm0, %xmm0
pinsrw $0, %eax, %xmm0
punpcklwd %xmm0, %xmm0
pshufd $0, %xmm0, %xmm0
ret
llvm-svn: 44856
2007-12-11 07:49:37 +00:00
6a6b3fb62b
Implement constant folding if vector<->vector bitcasts where the number
...
of source/dest elements changes. This implements
test/Transforms/InstCombine/bitcast-vector-fold.ll
llvm-svn: 44855
2007-12-11 07:29:44 +00:00
0b1df1d3da
Don't have APInt.cpp depend upon DerivedTypes.h. This helps with splitting the
...
Support libraries separately into their own module.
llvm-svn: 44852
2007-12-11 06:53:58 +00:00
5c6399eee6
significantly simplify some code, no functionality change.
...
llvm-svn: 44850
2007-12-11 06:07:39 +00:00
e8ea0374ac
refactor some code, no functionality change.
...
llvm-svn: 44849
2007-12-11 05:55:02 +00:00
303417d242
Switch over to MachineLoopInfo.
...
llvm-svn: 44838
2007-12-11 02:09:15 +00:00
f54030231e
Pretty print shuffle mask operand.
...
llvm-svn: 44837
2007-12-11 02:08:35 +00:00
4fbf459549
- Improved v8i16 shuffle lowering. It now uses pshuflw and pshufhw as much as
...
possible before resorting to pextrw and pinsrw.
- Better codegen for v4i32 shuffles masquerading as v8i16 or v16i8 shuffles.
- Improves (i16 extract_vector_element 0) codegen by recognizing
(i32 extract_vector_element 0) does not require a pextrw.
llvm-svn: 44836
2007-12-11 01:46:18 +00:00
a55a67ae91
x86 doesn't actually want to custom lower v3i32
...
llvm-svn: 44835
2007-12-11 01:41:33 +00:00
7843c16f31
CollectorMetadata and Collector are rejiggered to get along with
...
per-function collector model. Collector is now the factory for
CollectorMetadata, so the latter may be subclassed.
llvm-svn: 44827
2007-12-11 00:30:17 +00:00
2945c46e93
Move TargetData::hostIsLittleEndian out of line, which means we
...
don't have to #include config.h in it. #including config.h breaks
other projects that have their own autoconf stuff and try to #include
the llvm headers. One obscure example is llvm-gcc.
llvm-svn: 44825
2007-12-11 00:28:59 +00:00
2b0eed278b
Adding Ocaml bindings for the bitreader as requested by Sarah
...
Thompson. Usage should be something like this:
open Llvm
open Llvm_bitreader
match read_bitcode_file fn with
| Bitreader_failure msg ->
prerr_endline msg
| Bitreader_success m ->
...;
dispose_module m
Compile with: ocamlc llvm.cma llvm_bitreader.cma
ocamlopt llvm.cmxa llvm_bitreader.cmxa
llvm-svn: 44824
2007-12-11 00:20:48 +00:00
21ade5880b
Hey, English is not my native language :)
...
llvm-svn: 44820
2007-12-10 23:10:20 +00:00
77eb5e649d
Clarify the need of CFI() stuff
...
llvm-svn: 44819
2007-12-10 23:08:35 +00:00
a6b0f7e244
Provide convenient way to disable CFI stuff for old/broken assemblers.
...
Use it for Darwin.
llvm-svn: 44818
2007-12-10 23:04:38 +00:00
d2265b45ae
Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp.
...
Reimplement the xform in Analysis/ConstantFolding.cpp where we can use
targetdata to validate that it is safe. While I'm in there, fix some const
correctness issues and generalize the interface to the "operand folder".
llvm-svn: 44817
2007-12-10 22:53:04 +00:00
8a72a7d586
Disable cfi directives for now, darwin does't support them.
...
These should probably be something like:
CFI(".cfi_def_cfa_offset 16\n")
where CFI is defined to a noop on darwin and other platforms
that don't support those directives.
llvm-svn: 44803
2007-12-10 19:10:18 +00:00
9f76be61d1
Make PruneEH update the nounwind/noreturn attributes
...
on functions as it calculates them.
llvm-svn: 44802
2007-12-10 19:09:40 +00:00
5c65cb4633
Fix PR1836: in the interpreter, read and write apints
...
using the minimum possible number of bytes. For little
endian targets run on little endian machines, apints are
stored in memory from LSB to MSB as before. For big endian
targets on big endian machines they are stored from MSB to
LSB which wasn't always the case before (if the target and
host endianness doesn't match values are stored according
to the host's endianness). Doing this requires knowing the
endianness of the host, which is determined when configuring -
thanks go to Anton for this. Only having access to little
endian machines I was unable to properly test the big endian
part, which is also the most complicated...
llvm-svn: 44796
2007-12-10 17:43:13 +00:00
657be86229
And finally annotate X86-64 version of callback.
...
All bad stuff from SSE version is implicitely inherited :)
llvm-svn: 44794
2007-12-10 15:27:07 +00:00
88e9d082d8
Provide annotation for SSE version of callback. It's even more
...
broken, because doesn't mark xmm regs properly
llvm-svn: 44793
2007-12-10 15:13:55 +00:00
81e9dc4af7
Annotate JIT callback function with call frame infromation.
...
This will allow us (theoretically) to unwind through JITer.
The code wasn't verified, so I'm pretty sure offsets are wrong :)
llvm-svn: 44792
2007-12-10 14:54:42 +00:00
81b25817f9
It looks like this has been broken for some time -
...
get it to compile.
llvm-svn: 44791
2007-12-10 14:43:10 +00:00
ba61806ef1
A little more progress on StrongPHIElimination, now that I have a better sense of
...
how the CodeGen machinery works.
llvm-svn: 44786
2007-12-10 08:07:09 +00:00
d202e03fe5
Improve branch folding by recgonizing that explict successor relationships impact the value of fall-through choices.
...
llvm-svn: 44785
2007-12-10 07:24:06 +00:00
4b904b9627
Delete the CollectorNamePool if it should become empty.
...
llvm-svn: 44775
2007-12-10 03:35:18 +00:00
71183b6739
Adding a collector name attribute to Function in the IR. These
...
methods are new to Function:
bool hasCollector() const;
const std::string &getCollector() const;
void setCollector(const std::string &);
void clearCollector();
The assembly representation is as such:
define void @f() gc "shadow-stack" { ...
The implementation uses an on-the-side table to map Functions to
collector names, such that there is no overhead. A StringPool is
further used to unique collector names, which are extremely
likely to be unique per process.
llvm-svn: 44769
2007-12-10 03:18:06 +00:00
14a5569f4e
Reverting dtor devirtualization patch.
...
_sabre_: it has a major problem: by the time ~Value is run, all of the "parts" of the derived classes have been destroyed
_sabre_: the vtable lives to fight another day
llvm-svn: 44760
2007-12-10 02:14:30 +00:00
13daba07d9
fix some warnings.
...
llvm-svn: 44756
2007-12-10 01:51:22 +00:00
d05f4ba524
Fix a big problem in the recent dtor refactoring work, now it passes 2007-11-19-InlineAsm.ll
...
llvm-svn: 44755
2007-12-10 01:48:29 +00:00
3e5be66ccb
Devirtualizing Value destructor (PR889). Patch by Pawel Kunio!
...
llvm-svn: 44747
2007-12-09 22:46:10 +00:00
64443973c0
Duncan points out that the subtraction is unneeded since hte code
...
knows the vector is not pow2
llvm-svn: 44740
2007-12-09 17:56:34 +00:00
3f42d12072
Fix PR1782, patch by Wojtek Matyjewicz!
...
llvm-svn: 44733
2007-12-09 07:35:13 +00:00
69d3298777
Add support for splitting the operand of a return instruction.
...
llvm-svn: 44728
2007-12-09 00:06:19 +00:00
3f19dfe794
Reverting 44702. It wasn't correct to rename them.
...
llvm-svn: 44727
2007-12-08 23:58:46 +00:00
e48fc80446
add many new cases to SplitResult. SplitResult now handles all the cases that LegalizeDAG does.
...
llvm-svn: 44726
2007-12-08 23:58:27 +00:00
de9046af54
Implement splitting support for store, allowing us to compile:
...
%f8 = type <8 x float>
define void @test_f8(%f8* %P, %f8* %Q, %f8* %S) {
%p = load %f8* %P ; <%f8> [#uses=1]
%q = load %f8* %Q ; <%f8> [#uses=1]
%R = add %f8 %p, %q ; <%f8> [#uses=1]
store %f8 %R, %f8* %S
ret void
}
into:
_test_f8:
movaps 16(%rdi), %xmm0
addps 16(%rsi), %xmm0
movaps (%rdi), %xmm1
addps (%rsi), %xmm1
movaps %xmm0, 16(%rdx)
movaps %xmm1, (%rdx)
ret
llvm-svn: 44725
2007-12-08 23:24:26 +00:00
de87224cd9
implement vector splitting of load, undef, and binops.
...
llvm-svn: 44724
2007-12-08 23:08:49 +00:00
1ef437d4e1
implement some methods.
...
llvm-svn: 44723
2007-12-08 22:40:18 +00:00
a5e7db115e
add scaffolding for splitting of vectors.
...
llvm-svn: 44722
2007-12-08 22:37:41 +00:00
5c62ba5fb8
Remove dead file and directory.
...
llvm-svn: 44720
2007-12-08 22:17:33 +00:00
8c8eaf6b92
reorganize header to separate into functional blocks.
...
llvm-svn: 44719
2007-12-08 21:59:32 +00:00
4063bd6eae
split scalarization out to its own file.
...
llvm-svn: 44718
2007-12-08 20:30:28 +00:00
5c7c46baaf
Split expansion out into its own file.
...
llvm-svn: 44717
2007-12-08 20:27:32 +00:00
029c816460
Split promotion support out to its own file.
...
llvm-svn: 44716
2007-12-08 20:24:38 +00:00
757d4beba9
Rename LegalizeDAGTypes.cpp -> LegalizeTypes.cpp
...
llvm-svn: 44715
2007-12-08 20:17:13 +00:00
92288147b6
Split the class definition of DAGTypeLegalizer out into a header.
...
Leave it visibility hidden, but not in an anon namespace.
llvm-svn: 44714
2007-12-08 20:16:06 +00:00
d58954b040
add #include
...
llvm-svn: 44710
2007-12-08 19:03:30 +00:00
e5256754e7
proper #include order.
...
llvm-svn: 44707
2007-12-08 19:00:03 +00:00
4b41a6f529
Adding a StringPool data structure, which GC will use.
...
llvm-svn: 44705
2007-12-08 17:07:47 +00:00
ff87f05e43
aesthetic changes, no functionality change. Evan, it's not clear
...
what 'Available' is, please add a comment near it and rename it
if appropriate.
llvm-svn: 44703
2007-12-08 07:22:58 +00:00
2b07d8c5a0
Renaming:
...
isTriviallyReMaterializable -> hasNoSideEffects
isReallyTriviallyReMaterializable -> isTriviallyReMaterializable
llvm-svn: 44702
2007-12-08 07:17:56 +00:00
f47015bc74
Fix a significant code quality regression I introduced on PPC64 quite
...
a while ago. We now produce:
_foo:
mflr r0
std r0, 16(r1)
ld r2, 16(r1)
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
instead of:
_foo:
mflr r0
std r0, 16(r1)
lis r0, 0
ori r0, r0, 16
ldx r2, r1, r0
std r2, 0(r3)
ld r0, 16(r1)
mtlr r0
blr
for:
void foo(void **X) {
*X = __builtin_return_address(0);
}
on ppc64.
llvm-svn: 44701
2007-12-08 07:04:58 +00:00
f6a8156e4f
implement __builtin_return_addr(0) on ppc.
...
llvm-svn: 44700
2007-12-08 06:59:59 +00:00
a6c8297e84
refactor some code to avoid overloading the name 'usesLR' in
...
different places to mean different things. Document what the
one in PPCFunctionInfo means and when it is valid.
llvm-svn: 44699
2007-12-08 06:39:11 +00:00
4375173ba0
Incorporated comments from Evan and Chris:
...
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056043.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071203/056048.html
llvm-svn: 44696
2007-12-08 01:47:01 +00:00
086b2c4537
Fix several cache coherence bugs in MemDep/GVN that were found. Also add some (disabled) debugging code
...
to make such problems easier to diagnose in the future, written by Duncan Sands.
llvm-svn: 44695
2007-12-08 01:37:09 +00:00
92105ac0cd
Doh
...
llvm-svn: 44694
2007-12-08 01:01:07 +00:00
cd6913627e
Fix a compilation warning.
...
llvm-svn: 44692
2007-12-08 01:00:31 +00:00
ab87e735cd
Fix a compilation warning.
...
llvm-svn: 44691
2007-12-08 01:00:21 +00:00
fb706bc52b
Initial commit of the machine code LICM pass. It successfully hoists this:
...
_foo:
li r2, 0
LBB1_1: ; bb
li r5, 0
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
to:
_foo:
li r2, 0
li r5, 0
LBB1_1: ; bb
stw r5, 0(r3)
addi r2, r2, 1
addi r3, r3, 4
cmplw cr0, r2, r4
bne cr0, LBB1_1 ; bb
LBB1_2: ; return
blr
ZOMG!! :-)
Moar to come...
llvm-svn: 44687
2007-12-07 21:42:31 +00:00
b41d838d28
Add comment.
...
llvm-svn: 44686
2007-12-07 21:30:01 +00:00
bfd373a53e
Much improved v8i16 shuffles. (Step 1).
...
llvm-svn: 44676
2007-12-07 08:07:39 +00:00
85cdba29b0
Add an option to control this heuristic tweak so I can test it.
...
llvm-svn: 44671
2007-12-07 00:28:32 +00:00
c829e5cdf0
Remove a bogus optimization. It's not possible to do a move to low element to a <8 x i16> or <16 x i8> vector.
...
llvm-svn: 44669
2007-12-06 22:14:22 +00:00
5eff4de9c8
Redo previous patch so optimization only done for i1.
...
Simpler and safer.
llvm-svn: 44663
2007-12-06 17:53:31 +00:00
8393dc7378
Turning simple splitting on. Start testing new coalescer heuristics as new llcbeta.
...
llvm-svn: 44660
2007-12-06 08:54:31 +00:00
eedaf92fcf
third time around: instead of disabling this completely,
...
only disable it if we don't know it will be obviously profitable.
Still fixme, but less so. :)
llvm-svn: 44658
2007-12-06 07:47:55 +00:00
b5fdfb9612
Actually, disable this code for now. More analysis and improvements to
...
the X86 backend are needed before this should be enabled by default.
llvm-svn: 44657
2007-12-06 07:44:31 +00:00
7c709a5d08
implement a readme entry, compiling the code into:
...
_foo:
movl $12, %eax
andl 4(%esp), %eax
movl _array(%eax), %eax
ret
instead of:
_foo:
movl 4(%esp), %eax
shrl $2, %eax
andl $3, %eax
movl _array(,%eax,4), %eax
ret
As it turns out, this triggers all the time, in a wide variety of
situations, for example, I see diffs like this in various programs:
- movl 8(%eax), %eax
- shll $2, %eax
- andl $1020, %eax
- movl (%esi,%eax), %eax
+ movzbl 8(%eax), %eax
+ movl (%esi,%eax,4), %eax
- shll $2, %edx
- andl $1020, %edx
- movl (%edi,%edx), %edx
+ andl $255, %edx
+ movl (%edi,%edx,4), %edx
Unfortunately, I also see stuff like this, which can be fixed in the
X86 backend:
- andl $85, %ebx
- addl _bit_count(,%ebx,4), %ebp
+ shll $2, %ebx
+ andl $340, %ebx
+ addl _bit_count(%ebx), %ebp
llvm-svn: 44656
2007-12-06 07:33:36 +00:00
d2bbbabbfb
simplify some code.
...
llvm-svn: 44655
2007-12-06 06:25:04 +00:00
Owen Anderson