a38e72d247
Add note
...
llvm-svn: 50959
2008-05-11 14:33:15 +00:00
47fed61526
Fix various DOUTs to not call the extremely expensive Value::getName()
...
method. DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated. Just call getNameSTart,
which is close enough and doesn't cause heap traffic.
llvm-svn: 50958
2008-05-11 01:55:59 +00:00
82146fa267
Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
...
llvm-svn: 50957
2008-05-10 23:56:54 +00:00
acbdaa2406
Fix linking of internal aliases
...
llvm-svn: 50950
2008-05-10 14:41:43 +00:00
f6caff66a1
merge of use-diet branch to trunk
...
llvm-svn: 50943
2008-05-10 08:32:32 +00:00
71b9afb053
When transforming a vector_shuffle to a load, the base address must not be an undef.
...
llvm-svn: 50940
2008-05-10 06:46:49 +00:00
3c0e11af64
For now, abort when an ISD::VAARG is encountered on x86-64, rather
...
than silently generate invalid code.
llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.
llvm-svn: 50930
2008-05-10 01:26:14 +00:00
da2587cedc
Some clean up.
...
llvm-svn: 50929
2008-05-10 00:59:18 +00:00
bb48d55a88
If movl top bits are undef, let it be selected to movlps, etc.
...
llvm-svn: 50928
2008-05-10 00:58:41 +00:00
bec201fa06
If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy.
...
llvm-svn: 50927
2008-05-10 00:17:50 +00:00
19e3c857b8
Cosmetic changes:
...
- Comment fixes.
- Moar whitespace.
- Made ivars "private" by default.
No functionality change.
llvm-svn: 50926
2008-05-10 00:12:52 +00:00
867af2678f
Add a pattern to do move the low element of a v4f32 and zero extend the rest.
...
llvm-svn: 50922
2008-05-09 23:37:55 +00:00
66da8b5334
Remove an evil vector bool. Cosmetic refactoring,
...
no functional change.
llvm-svn: 50921
2008-05-09 23:28:24 +00:00
961339bbdb
Handle a few more cases of folding load i64 into xmm and zero top bits.
...
Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.
llvm-svn: 50918
2008-05-09 21:53:03 +00:00
cff7df201c
Rewrite tail merging algorithm to handle the
...
case where there are multiple blocks with a large
number of common tail instructions more efficiently
(compile time optimization).
llvm-svn: 50916
2008-05-09 21:24:35 +00:00
42d46f2aa3
put LibCallAliasAnalysis into anonymous namespace to avoid
...
clashes on ::X
llvm-svn: 50912
2008-05-09 20:35:45 +00:00
a4ee1f516f
don't sink invokes, even if they are readonly. This fixes a
...
crash on kimwitu++.
llvm-svn: 50901
2008-05-09 15:07:33 +00:00
437435dcbc
Fix a type and formatting.
...
llvm-svn: 50900
2008-05-09 12:20:10 +00:00
aaba10e843
Implement PR2298. This transforms:
...
~x < ~y --> y < x
-x == -y --> x == y
llvm-svn: 50882
2008-05-09 05:19:28 +00:00
e7f0afe168
restore doxygen comment.
...
llvm-svn: 50881
2008-05-09 04:43:13 +00:00
a50eed4af9
Check for validity of aliasee pointer before dereference.
...
llvm-svn: 50878
2008-05-08 23:11:06 +00:00
0360ecbec1
Use movq to move low half of XMM register and zero-extend the rest.
...
llvm-svn: 50874
2008-05-08 22:35:02 +00:00
954907aa6f
conservatively say that volatile stores read memory.
...
llvm-svn: 50872
2008-05-08 21:58:49 +00:00
c2e108430f
store can't read from memory.
...
llvm-svn: 50869
2008-05-08 21:47:43 +00:00
d12c519b74
Remove dead return. Thanks to Bill for the review!
...
llvm-svn: 50863
2008-05-08 18:26:56 +00:00
829046b0b4
Improve pass documentation and comments.
...
Patch by Matthijs Kooijman!
llvm-svn: 50861
2008-05-08 17:46:35 +00:00
49a594e6ab
More than just loads can read from memory: readonly calls like strlen
...
also need to be checked for memory modifying instructions before we
can sink them. THis fixes the second half of PR2297.
llvm-svn: 50860
2008-05-08 17:37:37 +00:00
4fa09669d8
Make instcombine's DSE respect loads as well as stores. It is not safe to
...
delete the first store in:
store x -> p
load p
store y -> p
This is for PR2297.
llvm-svn: 50859
2008-05-08 17:20:30 +00:00
8462711ce8
add a new Instruction::mayReadFromMemory predicate, make
...
Instruction::mayWriteToMemory stronger for invokes.
llvm-svn: 50858
2008-05-08 17:16:51 +00:00
4758caa926
Check linkage.
...
llvm-svn: 50851
2008-05-08 15:08:39 +00:00
9897eee483
Get exception handling working again on 64 bit
...
Darwin. This is a hack of course, but it does
at least look at the right thing: gotpcrel means
that this is already an offset, so an explicit
offset is not needed (and wrong). I think this
is good enough for the moment: Anton is working
on something better.
llvm-svn: 50850
2008-05-08 12:33:11 +00:00
f4b42f545b
Add support for constant folding the 'offsetof' pattern even if the
...
base is not zero. This fixes test/C++Frontend/2008-05-07-CrazyOffsetOf.cpp
llvm-svn: 50840
2008-05-08 04:54:43 +00:00
78af38c392
Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine.
...
llvm-svn: 50838
2008-05-08 00:57:18 +00:00
fc2edad4ae
Turn StripPointerCast() into a method
...
llvm-svn: 50836
2008-05-07 22:54:15 +00:00
621d33bbc0
Add a new LibCallAliasAnalysis pass, which is parameterized
...
by an instance of LibCallInfo to provide mod/ref info of
standard library functions. This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.
llvm-svn: 50827
2008-05-07 19:53:05 +00:00
e2b0bf43a7
Output correct exception handling and frame info
...
on x86-64 linux. This causes no regressions on
32 bit linux and 32 bit ppc. More tests pass
on 64 bit ppc with no regressions. I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet. But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch. Thanks to
Dale for testing. The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.
llvm-svn: 50825
2008-05-07 19:11:09 +00:00
9a35f1b702
Add a new interface for describing the behavior of library calls. This
...
Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.
This isn't used by anything yet.
llvm-svn: 50820
2008-05-07 18:21:13 +00:00
7ca4a67ca1
Yet another nasty spiller bug.
...
%ecx = op
store %cl<kill>, (addr)
(addr) = op %al
It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below.
llvm-svn: 50794
2008-05-07 00:49:28 +00:00
5a3eecdfd8
Fix a bug in the ComputeMaskedBits logic for multiply.
...
llvm-svn: 50793
2008-05-07 00:35:55 +00:00
09cfb1cf2d
If weak GlobalVariable was bitcast'ed to different type during linking
...
we will need to strip all casts for intializer lookup.
llvm-svn: 50776
2008-05-06 22:52:54 +00:00
82c02b28f3
Make StripPointerCast a common function (should we mak it method of Value instead?)
...
llvm-svn: 50775
2008-05-06 22:52:30 +00:00
0e1ab4a9be
We need to update PHIs containing the exiting block, not the exit block. We really should come up with better names for these.
...
llvm-svn: 50770
2008-05-06 20:55:16 +00:00
7ffc3c9a95
Fix typo.
...
llvm-svn: 50713
2008-05-06 05:40:11 +00:00
f0bdd22ffd
Fix typo and indentation.
...
llvm-svn: 50706
2008-05-06 04:03:18 +00:00
25f08069ae
Fix renamePathOnDisk on Win32, patch from David Leon. This fixes problems with
...
llvm-ar being unable to rename files.
llvm-svn: 50702
2008-05-06 03:42:21 +00:00
de68fabb35
fix typo Duncan noticed
...
llvm-svn: 50699
2008-05-06 02:31:18 +00:00
888594bdf4
Match things like 'armv5tejl-unknown-linux-gnu' for PR2290
...
llvm-svn: 50698
2008-05-06 02:29:28 +00:00
6a2da37c0e
Make several variable declarations static.
...
llvm-svn: 50696
2008-05-06 01:53:16 +00:00
a8b7e78f54
Remove uses of llvm/System/IncludeFile.h that are no longer needed.
...
llvm-svn: 50695
2008-05-06 01:32:53 +00:00
38dc08f36f
Instead of enumerating each opcode that isn't handled that
...
ComputeMaskedBits handles, just use a 'default:'. This avoids
TargetLowering's list getting out of date with SelectionDAG's.
llvm-svn: 50693
2008-05-06 00:53:29 +00:00
cf0e3acf16
Correct the value of LowBits in srem and urem handling in
...
ComputeMaskedBits.
llvm-svn: 50692
2008-05-06 00:51:48 +00:00
72a0bc148c
Fix a broken doxygen comment, and reword it for clarity.
...
llvm-svn: 50687
2008-05-06 00:20:10 +00:00
6e2bf7c67e
add a micro optzn.
...
llvm-svn: 50681
2008-05-05 23:19:45 +00:00
310a38d51e
Improved generated code for atomic operators
...
llvm-svn: 50677
2008-05-05 22:56:23 +00:00
dbfcce37fe
Code clean up. No functionality change.
...
llvm-svn: 50675
2008-05-05 22:12:23 +00:00
4ead264c08
Fix: Some classes were derived from a class in an anonymous namespace, but they
...
themselves weren't in the anonymous namespace.
llvm-svn: 50673
2008-05-05 21:37:59 +00:00
8ed8e3d0e6
Fix a crash when threading a block that includes a MRV call result.
...
DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
llvm-svn: 50667
2008-05-05 20:21:22 +00:00
3e58393c3d
Added addition atomic instrinsics and, or, xor, min, and max.
...
llvm-svn: 50663
2008-05-05 19:05:59 +00:00
b42c28c3dc
Fix IsLinux being uninitialized on non-Linux targets.
...
llvm-svn: 50660
2008-05-05 18:43:07 +00:00
86cb31862f
Fix more -Wshorten-64-to-32 warnings.
...
llvm-svn: 50659
2008-05-05 18:30:58 +00:00
4b0386ce62
Fix 80col violation
...
llvm-svn: 50654
2008-05-05 17:08:59 +00:00
e3a63ba3cd
Fix a bug in the ELF writer that caused it to produce malformed
...
ELF headers. The ELF writer still isn't generally usable though.
llvm-svn: 50652
2008-05-05 16:48:32 +00:00
6fd71c6512
Use a dedicated IsLinux flag instead of an ELFLinux TargetType.
...
llvm-svn: 50649
2008-05-05 16:11:31 +00:00
bcde172222
Add AsmPrinter support for emitting a directive to declare that
...
the code being generated does not require an executable stack.
Also, add target-specific code to make use of this on Linux
on x86.
llvm-svn: 50634
2008-05-05 00:28:39 +00:00
9205c8562c
Add General Dynamic TLS model for X86-64. Some parts looks really ugly (look for tlsaddr pattern),
...
but should work. Work is in progress, more models will follow
llvm-svn: 50630
2008-05-04 21:36:32 +00:00
c17c8f3ec4
regenerate
...
llvm-svn: 50621
2008-05-04 17:18:47 +00:00
a735a9c481
Use (void) instead of () in C code.
...
llvm-svn: 50620
2008-05-04 12:55:34 +00:00
d9481366e3
Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
...
llvm-svn: 50619
2008-05-04 09:15:50 +00:00
2d7a4d70c3
processStore may delete the instruction, avoid
...
using dyn_cast<> on already freed memory.
llvm-svn: 50618
2008-05-04 08:51:25 +00:00
2a45575c71
Implement destructor for PostDominatorTree to eliminate a memory leak.
...
llvm-svn: 50607
2008-05-03 20:25:26 +00:00
fa0e3c4a92
Handle multiple return values.
...
llvm-svn: 50604
2008-05-03 01:12:15 +00:00
cdf22f2953
Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
...
llvm-svn: 50601
2008-05-03 00:52:09 +00:00
a1ec89fbf1
Do not sink getresult.
...
llvm-svn: 50600
2008-05-03 00:36:30 +00:00
ab8cacee2d
Add assert.
...
llvm-svn: 50596
2008-05-02 22:13:33 +00:00
1962c2be6a
Fix a mistake in the computation of leading zeros for udiv.
...
llvm-svn: 50591
2008-05-02 21:30:02 +00:00
82b9e96274
Suppress -Wshorten-64-to-32 warnings for 64-bit hosts.
...
llvm-svn: 50590
2008-05-02 21:15:08 +00:00
5f0563ceb6
strength reduce exp2 into ldexp, rdar://5852514
...
llvm-svn: 50586
2008-05-02 18:43:35 +00:00
a700b2bd0f
add a FIXME so we remember to eventually remove this code.
...
llvm-svn: 50582
2008-05-02 17:18:31 +00:00
fa8f9f937a
Undo r50574. We are already ensuring the folded load address is 16-byte aligned.
...
llvm-svn: 50578
2008-05-02 17:01:01 +00:00
4f9cd9181e
80 column violation.
...
llvm-svn: 50575
2008-05-02 07:53:32 +00:00
50f82f2c8e
Not safe folding a load + FsXORPSrr into FsXORPSrm. It's loading a FR64 value but the load folding variant expects a 16-byte aligned address.
...
llvm-svn: 50574
2008-05-02 07:50:58 +00:00
86ceb0db9c
Porting r50563 from Tak to mainline.
...
llvm-svn: 50564
2008-05-02 00:43:20 +00:00
2f83b47863
Fix a typo in a comment.
...
llvm-svn: 50562
2008-05-02 00:05:03 +00:00
ea6357828b
Use push_back(...) instead of resize(1, ...), per review feedback.
...
llvm-svn: 50561
2008-05-02 00:03:54 +00:00
752ce50b2d
Fix uninitialized uses of the FPC variable.
...
llvm-svn: 50558
2008-05-01 23:40:44 +00:00
78ffe6e939
Don't try to create PHIs of struct types. Fallout
...
from x86-64 calling convention work.
llvm-svn: 50545
2008-05-01 22:27:44 +00:00
4be6ae4e6c
Fix an overaggressive SimplifyDemandedBits optimization on urem. This
...
fixes the 254.gap regression on x86 and the 403.gcc regression on x86-64.
llvm-svn: 50537
2008-05-01 19:13:24 +00:00
d4b2a67cf3
don't randomly miscompile seto/setuo just because we are in
...
ffastmath mode. This fixes rdar://5902801, a miscompilation
of gcc.dg/builtins-8.c.
Bill, please pull this into Tak.
llvm-svn: 50523
2008-05-01 07:26:11 +00:00
bb41aab426
1) add '-debug' output
...
2) Return NULL instead of false in several places for tidiness.
3) fix a bug optimizing sprintf(p, "%c", x)
llvm-svn: 50521
2008-05-01 06:39:12 +00:00
b9b5d6ddaa
Delete the IPO simplify-libcalls and completely reimplement it as
...
a FunctionPass. This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.
llvm-svn: 50520
2008-05-01 06:25:24 +00:00
78769f0223
fix a bug in my previous patch, a classic =/== bug.
...
llvm-svn: 50483
2008-04-30 15:27:09 +00:00
be0de34ede
Tail call optimization improvements:
...
Move platform independent code (lowering of possibly overwritten
arguments, check for tail call optimization eligibility) from
target X86ISelectionLowering.cpp to TargetLowering.h and
SelectionDAGISel.cpp.
Initial PowerPC tail call implementation:
Support ppc32 implemented and tested (passes my tests and
test-suite llvm-test).
Support ppc64 implemented and half tested (passes my tests).
On ppc tail call optimization is performed if
caller and callee are fastcc
call is a tail call (in tail call position, call followed by ret)
no variable argument lists or byval arguments
option -tailcallopt is enabled
Supported:
* non pic tail calls on linux/darwin
* module-local tail calls on linux(PIC/GOT)/darwin(PIC)
* inter-module tail calls on darwin(PIC)
If constraints are not met a normal call will be emitted.
A test checking the argument lowering behaviour on x86-64 was added.
llvm-svn: 50477
2008-04-30 09:16:33 +00:00
659e5c4bc9
fcntl.h is pretty standard on unix (without the sys/)
...
llvm-svn: 50475
2008-04-30 08:53:22 +00:00
0ced13ccd9
This condition got inverted accidentally.
...
llvm-svn: 50473
2008-04-30 07:16:33 +00:00
2dc4426675
move lowering of llvm.memset -> store from simplify libcalls
...
to instcombine.
llvm-svn: 50472
2008-04-30 06:39:11 +00:00
a1d850ee1c
add a method for comparing to see if a value has a specified name.
...
llvm-svn: 50465
2008-04-30 03:55:40 +00:00
438e35c4d1
use string length computation to generalize several xforms.
...
llvm-svn: 50464
2008-04-30 03:07:53 +00:00
c110c4a526
Add comments for previous patch as requested.
...
llvm-svn: 50463
2008-04-30 00:43:29 +00:00
c3a1910a07
Bug fixes and updates for CellSPU, syncing up with trunk. Most notable
...
fixes are target-specific lowering of frame indices, fix constants generated
for the FSMBI instruction, and fixing SPUTargetLowering::computeMaskedBitsFor-
TargetNode().
llvm-svn: 50462
2008-04-30 00:30:08 +00:00
be940424b3
Fix custom target lowering for zero/any/sign_extend: make sure that
...
DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().
llvm-svn: 50461
2008-04-30 00:26:38 +00:00
Anton Korobeynikov