Chris Lattner
dc4756bfda
add a note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43444 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 06:19:48 +00:00
Chris Lattner
cee291c505
Model stacksave and stackrestore as both writing memory, since we
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don't model their dependences on allocas correctly. This fixes
PR1745.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43442 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 05:47:52 +00:00
Owen Anderson
08895f8866
Add a first attempt at dominator information for MBB's. Use with caution: this has been tested to compile. It has not yet been confirmed to generate correct analysis.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43438 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 04:50:50 +00:00
Chris Lattner
0569187653
I am not sure this is a good idea to be an option, but rename the option for
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now. It conflicts with clang's -pedantic flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43431 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 03:14:55 +00:00
Chris Lattner
fb7f343615
Add support for the x86-64 'q' regigster modifier, and add support for the
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b/h/w/k/q inline asm memory modifiers, which are just ignored. This fixes
PR1748 and CodeGen/X86/2007-10-28-inlineasm-q-modifier.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43430 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 03:09:07 +00:00
Chris Lattner
b361ec3197
Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling
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zero-length fields better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43427 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 02:40:02 +00:00
Chris Lattner
3cb63ddd51
Fix PR1752 and LoopSimplify/2007-10-28-InvokeCrash.ll: terminators
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can have uses too. Wouldn't it be nice if invoke didn't exist? :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43426 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 02:30:37 +00:00
Ted Kremenek
adc9b9c317
Fixed assertion in Deserializer::~Deserializer that checks for
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pointers that were not backpatched (previously checked the wrong invariant).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43425 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-28 23:38:38 +00:00
Anton Korobeynikov
536c64b4d6
Add 'pedantic' mode to verifier rejecting syntactically valid, but 'bad' due to other reasons code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43424 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-28 22:50:32 +00:00
Ted Kremenek
5973ef40ca
Updated backpatching logic during object deserialization to perform
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eager backpatching instead of waithing until all objects have been
deserialized. This allows us to reduce the memory footprint needed
for backpatching.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43422 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-28 21:17:59 +00:00
Duncan Sands
dc84650679
The guaranteed alignment of ptr+offset is only the minimum of
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of offset and the alignment of ptr if these are both powers of
2. While the ptr alignment is guaranteed to be a power of 2,
there is no reason to think that offset is. For example, if
offset is 12 (the size of a long double on x86-32 linux) and
the alignment of ptr is 8, then the alignment of ptr+offset
will in general be 4, not 8. Introduce a function MinAlign,
lifted from gcc, for computing the minimum guaranteed alignment.
I've tried to fix up everywhere under lib/CodeGen/SelectionDAG/.
I also changed some places that weren't wrong (because both values
were a power of 2), as a defensive change against people copying
and pasting the code.
Hopefully someone who cares about alignment will review the rest
of LLVM and fix up the remaining places. Since I'm on x86 I'm
not very motivated to do this myself...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43421 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-28 12:59:45 +00:00
Evan Cheng
402b678373
New entry.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43420 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-28 04:01:09 +00:00
Ted Kremenek
d9c8822fb3
Fixed bug where default SerializeTrait<>::Materialize would not return the materialized object pointer.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43413 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 23:44:59 +00:00
Bill Wendling
318d3ae397
Test to make sure that if we have an unaligned memcpy, it will still compile.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43412 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 23:43:35 +00:00
Evan Cheng
168a66b21e
A number of LSR fixes:
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- ChangeCompareStride only reuse stride that is larger than current stride. It
will let the general reuse mechanism to try to reuse a smaller stride.
- Watch out for multiplication overflow in ChangeCompareStride.
- Replace std::set with SmallPtrSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43408 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 23:08:19 +00:00
Ted Kremenek
cd9c2ba7f7
Added SerializeAPInt.cpp and DeserializeAPInt.cpp to the XCode project.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43406 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 21:53:37 +00:00
Ted Kremenek
1a43e5ffe1
Added serialization support for APInt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43405 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 21:50:10 +00:00
Ted Kremenek
7f46734b66
Fixed incorrect "path name" in preamble (comment) of header file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43402 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 20:44:02 +00:00
Ted Kremenek
02760ed19a
Fixed incorrect "path name" in preamble (comment) of header file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43401 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 20:42:45 +00:00
Bill Wendling
61297f960e
On second thought. Remove this as it should never be generated in the first
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place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43400 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 20:34:37 +00:00
Bill Wendling
984e986929
- Remove the hacky code that forces a memcpy. Alignment is taken care of in the
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FE.
- Explicitly pass in the alignment of the load & store.
- XFAIL 2007-10-23-UnalignedMemcpy.ll because llc has a bug that crashes on
unaligned pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43398 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 20:24:42 +00:00
Ted Kremenek
6a13dfdc6d
Added default implementation of SerializeTrait<> that dispatches to
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calling member functions of the target type to perform type-specific
serialization.
Added version of ReadPtr that allows passing references to uintptr_t
(useful for smart pointers).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43396 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 20:23:27 +00:00
Evan Cheng
f1fc54f951
Fix a crash. Make sure TLI is not null.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 17:24:46 +00:00
Anton Korobeynikov
8d9d74eaa8
Fix off-by-one stack offset computations (dwarf information) for callee-saved
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registers in case, when FP pointer was eliminated. This should fixes misc. random
EH-related crahses, when stuff is compiled with -fomit-frame-pointer.
Thanks Duncan for nailing this bug!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43381 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 09:13:24 +00:00
Eric Christopher
3c999a270e
clo/clz aren't supported on mips I. Keep them around for when we'll
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want them later (mips32/64).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43380 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 04:00:13 +00:00
Owen Anderson
ef15029258
Make a comment better.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43379 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 03:47:14 +00:00
Gordon Henriksen
55cbec317d
More fleshing out of docs/Passes.html, plus some typo fixes and
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improved wording in source files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43377 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 03:03:51 +00:00
Evan Cheng
2bd122c4d9
Loosen up iv reuse to allow reuse of the same stride but a larger type when truncating from the larger type to smaller type is free.
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e.g.
Turns this loop:
LBB1_1: # entry.bb_crit_edge
xorl %ecx, %ecx
xorw %dx, %dx
movw %dx, %si
LBB1_2: # bb
movl L_X$non_lazy_ptr, %edi
movw %si, (%edi)
movl L_Y$non_lazy_ptr, %edi
movw %dx, (%edi)
addw $4, %dx
incw %si
incl %ecx
cmpl %eax, %ecx
jne LBB1_2 # bb
into
LBB1_1: # entry.bb_crit_edge
xorl %ecx, %ecx
xorw %dx, %dx
LBB1_2: # bb
movl L_X$non_lazy_ptr, %esi
movw %cx, (%esi)
movl L_Y$non_lazy_ptr, %esi
movw %dx, (%esi)
addw $4, %dx
incl %ecx
cmpl %eax, %ecx
jne LBB1_2 # bb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43375 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-26 01:56:11 +00:00
Hartmut Kaiser
081fdf238b
Silenced a VC++ warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43374 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 23:49:14 +00:00
Ted Kremenek
3bd9dcc08f
Updated backpatching during object deserialization to support "smart"
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pointers that employ unused bits in a pointer to store extra data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43373 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 23:40:35 +00:00
Hartmut Kaiser
8df77a9e0f
Clarified operator precedence.
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Silenced VC++ warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43372 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 23:15:31 +00:00
Hartmut Kaiser
0fcf68a5e0
Disambiguated variable name to comply with VC++'s archaic variable scoping rules.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43369 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 22:57:48 +00:00
Hartmut Kaiser
3faa173448
Updated VC++ build system
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43368 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 22:56:13 +00:00
Evan Cheng
5f8ebaa5c0
Do not rewrite compare instruction using iv of a different stride if the new
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stride may be rewritten using the stride of the compare instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43367 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 22:45:20 +00:00
Dale Johannesen
ca4571e79f
Support non-POSIX hosts by removing use of strncasecmp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43364 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 21:54:43 +00:00
Bill Wendling
da6efc5268
Changed XXX to FIXME, and added comment to the README file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43359 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 19:49:32 +00:00
Ted Kremenek
2423e03ca8
Added special treatment of serializing NULL pointers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43357 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 18:42:52 +00:00
Evan Cheng
2c8ca5c415
Remove code that's commented out.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43356 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 18:38:24 +00:00
Bill Wendling
0713a22423
Added comment explaining why we are doing this check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 18:23:45 +00:00
Ted Kremenek
3b8ac40e63
Created header file to include minimal forward references needed for
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object serialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43352 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 18:19:29 +00:00
Chris Lattner
e949512dfa
typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43351 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 18:05:29 +00:00
Chris Lattner
7271423a99
some minor edits, link to Passes.html, make one point
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I forgot about yesterday.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43350 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 17:52:39 +00:00
Ted Kremenek
89a354d7fa
Added Serialization.h, Serialize.h, Deserialize.h, Serialize.cpp, and
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Deserialize.cpp to the XCode project.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43345 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 16:09:09 +00:00
Duncan Sands
2e606cfc7a
Small formatting changes. Add a sanity check.
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Use NVT rather than looking it up, since we have
it to hand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43341 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 12:35:51 +00:00
Duncan Sands
cac99db7da
Promote SETCC operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43340 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 12:32:31 +00:00
Duncan Sands
a3d10d808e
Correctly extract the ValueType from a VTSDNode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43339 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 12:30:51 +00:00
Duncan Sands
b36904be91
Fix comment typos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43338 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 12:28:12 +00:00
Gordon Henriksen
0e15dc26ec
Fleshing out docs/Passes.html for some analyses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43337 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 10:18:27 +00:00
Evan Cheng
cdf43b1fad
If a loop termination compare instruction is the only use of its stride,
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and the compaison is against a constant value, try eliminate the stride
by moving the compare instruction to another stride and change its
constant operand accordingly. e.g.
loop:
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v1 = v1 + 3
v2 = v2 + 1
if (v2 < 10) goto loop
=>
loop:
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v1 = v1 + 3
if (v1 < 30) goto loop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43336 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 09:11:16 +00:00
Gordon Henriksen
ddaa61d8b5
Passes.html now 'passes' validation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43335 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-25 08:58:56 +00:00