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fb7f343615
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20611 Commits

Author SHA1 Message Date
Chris Lattner
fb7f343615 Add support for the x86-64 'q' regigster modifier, and add support for the 
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 
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 
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 
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 
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 
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 
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. 
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
Evan Cheng
168a66b21e A number of LSR fixes: 
- 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
1a43e5ffe1 Added serialization support for APInt. 
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
Bill Wendling
984e986929 - Remove the hacky code that forces a memcpy. Alignment is taken care of in the 
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
Evan Cheng
f1fc54f951 Fix a crash. Make sure TLI is not null. 
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 
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 
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. 
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 
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. 
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. 
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" 
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. 
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. 
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
Evan Cheng
5f8ebaa5c0 Do not rewrite compare instruction using iv of a different stride if the new 
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. 
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 
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. 
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. 
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. 
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
Duncan Sands
2e606cfc7a Small formatting changes. Add a sanity check. 
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. 
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. 
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
Evan Cheng
cdf43b1fad If a loop termination compare instruction is the only use of its stride, 
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:
...
v1 = v1 + 3
v2 = v2 + 1
if (v2 < 10) goto loop
=>
loop:
...
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
Owen Anderson
f92ff03f71 Fix for PR1741. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43326 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 02:36:18 +00:00
Ted Kremenek
fe2a012338 Implemented prototype serialization of pointers, including support 
for backpatching.

Added Deserialize::ReadVal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43319 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 00:10:21 +00:00
Dale Johannesen
8eadd5a6db Another expansion for i64 multiply, suitable for PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43314 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 22:26:08 +00:00
Dale Johannesen
0fcee0639e Fix off by 1 bug in printf->puts lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43309 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 20:14:50 +00:00
Ted Kremenek
6e9b496643 Split Serialization.h into separate headers: Serialize.h and 
Deserialize.h Serialization.h now includes trait speciailizations for
unsigned long, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43307 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 19:06:40 +00:00
Chris Lattner
be3e348c7c simplify some code by using the new isNaN predicate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 18:54:45 +00:00
Chris Lattner
99c65745a2 Implement a couple of foldings for ordered and unordered comparisons, 
implementing cases related to PR1738.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43289 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 05:38:08 +00:00
Bill Wendling
30eeb3c6c0 Fix comment and use the "Size" variable that's already provided. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:36:57 +00:00
Bill Wendling
8b1c68cee4 If there's an unaligned memcpy to/from the stack, don't lower it. Just call the 
memcpy library function instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43270 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:32:40 +00:00
Dale Johannesen
79217064c6 Disable a couple more things for ppcf128. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43267 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:20:14 +00:00
Bill Wendling
803396fce2 This broke lots. Reverting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43264 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 22:04:26 +00:00
Bill Wendling
de09040946 Lowering a memcpy to the stack is killing PPC. The ARM and X86 backends already 
have their own custom memcpy lowering code. This code needs to be factored out
into a target-independent lowering method with hooks to the backend. In the
meantime, just call memcpy if we're trying to copy onto a stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43262 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 21:30:25 +00:00
Ted Kremenek
0b2d7aaf5c Added preliminary implementation of generic object serialization to bitcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43261 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 21:29:33 +00:00
Owen Anderson
d20cc14dbf Make DomTree and PostDomTree thin wrappers around DomTreeBase, rather than inheriting from it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43259 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 20:58:37 +00:00
Evan Cheng
7bb175b4d1 It's possible to commute instrctions with more than 3 operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43256 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 20:14:40 +00:00
Evan Cheng
e11fb34381 isSubRegOf() is a dup of isSubRegister. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43249 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 06:51:50 +00:00
Evan Cheng
152b7e1874 Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43248 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 06:42:42 +00:00
Evan Cheng
4102eb57bb Fix memcpy lowering when addresses are 4-byte aligned but size is not multiple of 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 22:11:27 +00:00
Dan Gohman
ac72058dd6 The #include <iterator> isn't needed in this header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43232 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 20:44:10 +00:00