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20629 Commits

Author SHA1 Message Date
Dan Gohman
957fd1704a Avoid calling ValidStride when not all uses are addresses. 
llvm-svn: 43460
 2007-10-29 19:23:53 +00:00
Ted Kremenek
4f7fd889e1 Fixed warning concerning implicit conversion from a NULL pointer 
constant to an unsigned int.  We now just directly assign the literal 0.

llvm-svn: 43459
 2007-10-29 18:43:39 +00:00
Evan Cheng
1113931fd8 Avoid doing something dumb like rewriting using a 64-bit iv in 32-bit mode. 
llvm-svn: 43446
 2007-10-29 07:57:50 +00:00
Chris Lattner
be8379fac5 add a note. 
llvm-svn: 43444
 2007-10-29 06:19:48 +00:00
Chris Lattner
1659eb3c3f I am not sure this is a good idea to be an option, but rename the option for 
now.  It conflicts with clang's -pedantic flag.

llvm-svn: 43431
 2007-10-29 03:14:55 +00:00
Chris Lattner
1503362624 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

llvm-svn: 43430
 2007-10-29 03:09:07 +00:00
Chris Lattner
7e3a8a7604 Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling 
zero-length fields better.

llvm-svn: 43427
 2007-10-29 02:40:02 +00:00
Chris Lattner
891066cfff Fix PR1752 and LoopSimplify/2007-10-28-InvokeCrash.ll: terminators 
can have uses too.  Wouldn't it be nice if invoke didn't exist? :)

llvm-svn: 43426
 2007-10-29 02:30:37 +00:00
Ted Kremenek
3ad324488b Fixed assertion in Deserializer::~Deserializer that checks for 
pointers that were not backpatched (previously checked the wrong invariant).

llvm-svn: 43425
 2007-10-28 23:38:38 +00:00
Anton Korobeynikov
ab0c5f6d32 Add 'pedantic' mode to verifier rejecting syntactically valid, but 'bad' due to other reasons code 
llvm-svn: 43424
 2007-10-28 22:50:32 +00:00
Ted Kremenek
27c96e0d86 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.

llvm-svn: 43422
 2007-10-28 21:17:59 +00:00
Duncan Sands
b494fb97a4 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...

llvm-svn: 43421
 2007-10-28 12:59:45 +00:00
Evan Cheng
053178440a New entry. 
llvm-svn: 43420
 2007-10-28 04:01:09 +00:00
Evan Cheng
c8adcda731 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.

llvm-svn: 43408
 2007-10-26 23:08:19 +00:00
Ted Kremenek
3f3b4818ef Added serialization support for APInt. 
llvm-svn: 43405
 2007-10-26 21:50:10 +00:00
Bill Wendling
8d329ff809 - 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.

llvm-svn: 43398
 2007-10-26 20:24:42 +00:00
Evan Cheng
53b2e7f3ca Fix a crash. Make sure TLI is not null. 
llvm-svn: 43384
 2007-10-26 17:24:46 +00:00
Anton Korobeynikov
0d3f43480e 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!

llvm-svn: 43381
 2007-10-26 09:13:24 +00:00
Eric Christopher
82c77dd85b clo/clz aren't supported on mips I. Keep them around for when we'll 
want them later (mips32/64).

llvm-svn: 43380
 2007-10-26 04:00:13 +00:00
Owen Anderson
8bf547855a Make a comment better. 
llvm-svn: 43379
 2007-10-26 03:47:14 +00:00
Gordon Henriksen
609997aa7d More fleshing out of docs/Passes.html, plus some typo fixes and 
improved wording in source files.

llvm-svn: 43377
 2007-10-26 03:03:51 +00:00
Evan Cheng
53696b7e9f 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

llvm-svn: 43375
 2007-10-26 01:56:11 +00:00
Hartmut Kaiser
d57d01b8e0 Silenced a VC++ warning. 
llvm-svn: 43374
 2007-10-25 23:49:14 +00:00
Ted Kremenek
2bfb73a3f4 Updated backpatching during object deserialization to support "smart" 
pointers that employ unused bits in a pointer to store extra data.

llvm-svn: 43373
 2007-10-25 23:40:35 +00:00
Hartmut Kaiser
48b3098b43 Clarified operator precedence. 
Silenced VC++ warning.

llvm-svn: 43372
 2007-10-25 23:15:31 +00:00
Hartmut Kaiser
8b605b5578 Disambiguated variable name to comply with VC++'s archaic variable scoping rules. 
llvm-svn: 43369
 2007-10-25 22:57:48 +00:00
Evan Cheng
d7eab3a984 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.

llvm-svn: 43367
 2007-10-25 22:45:20 +00:00
Dale Johannesen
0774a9c549 Support non-POSIX hosts by removing use of strncasecmp. 
llvm-svn: 43364
 2007-10-25 21:54:43 +00:00
Bill Wendling
27f7cac311 Changed XXX to FIXME, and added comment to the README file 
llvm-svn: 43359
 2007-10-25 19:49:32 +00:00
Ted Kremenek
d29fe31fcd Added special treatment of serializing NULL pointers. 
llvm-svn: 43357
 2007-10-25 18:42:52 +00:00
Evan Cheng
c25c4276a6 Remove code that's commented out. 
llvm-svn: 43356
 2007-10-25 18:38:24 +00:00
Bill Wendling
34d5118422 Added comment explaining why we are doing this check. 
llvm-svn: 43353
 2007-10-25 18:23:45 +00:00
Duncan Sands
fcfc9fdd5c Small formatting changes. Add a sanity check. 
Use NVT rather than looking it up, since we have
it to hand.

llvm-svn: 43341
 2007-10-25 12:35:51 +00:00
Duncan Sands
15f9f7d669 Promote SETCC operands. 
llvm-svn: 43340
 2007-10-25 12:32:31 +00:00
Duncan Sands
28582a76eb Correctly extract the ValueType from a VTSDNode. 
llvm-svn: 43339
 2007-10-25 12:30:51 +00:00
Evan Cheng
66cbf54030 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

llvm-svn: 43336
 2007-10-25 09:11:16 +00:00
Owen Anderson
6cc4e90741 Fix for PR1741. 
llvm-svn: 43326
 2007-10-25 02:36:18 +00:00
Ted Kremenek
195382dce2 Implemented prototype serialization of pointers, including support 
for backpatching.

Added Deserialize::ReadVal.

llvm-svn: 43319
 2007-10-25 00:10:21 +00:00
Dale Johannesen
53ca1384b0 Another expansion for i64 multiply, suitable for PPC. 
llvm-svn: 43314
 2007-10-24 22:26:08 +00:00
Dale Johannesen
414ad5d4a4 Fix off by 1 bug in printf->puts lowering. 
llvm-svn: 43309
 2007-10-24 20:14:50 +00:00
Ted Kremenek
b3085f2d74 Split Serialization.h into separate headers: Serialize.h and 
Deserialize.h Serialization.h now includes trait speciailizations for
unsigned long, etc.

llvm-svn: 43307
 2007-10-24 19:06:40 +00:00
Chris Lattner
ae9cfd2fb0 simplify some code by using the new isNaN predicate 
llvm-svn: 43305
 2007-10-24 18:54:45 +00:00
Chris Lattner
483c471daa Implement a couple of foldings for ordered and unordered comparisons, 
implementing cases related to PR1738.

llvm-svn: 43289
 2007-10-24 05:38:08 +00:00
Bill Wendling
e5f534148e Fix comment and use the "Size" variable that's already provided. 
llvm-svn: 43271
 2007-10-23 23:36:57 +00:00
Bill Wendling
a420d660c8 If there's an unaligned memcpy to/from the stack, don't lower it. Just call the 
memcpy library function instead.

llvm-svn: 43270
 2007-10-23 23:32:40 +00:00
Dale Johannesen
94241a8d3a Disable a couple more things for ppcf128. 
llvm-svn: 43267
 2007-10-23 23:20:14 +00:00
Bill Wendling
34950e1291 This broke lots. Reverting. 
llvm-svn: 43264
 2007-10-23 22:04:26 +00:00
Bill Wendling
34c16a1b2d 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.

llvm-svn: 43262
 2007-10-23 21:30:25 +00:00
Ted Kremenek
72fe268f74 Added preliminary implementation of generic object serialization to bitcode. 
llvm-svn: 43261
 2007-10-23 21:29:33 +00:00
Owen Anderson
33b9693ab8 Make DomTree and PostDomTree thin wrappers around DomTreeBase, rather than inheriting from it. 
llvm-svn: 43259
 2007-10-23 20:58:37 +00:00
Evan Cheng
5391d0a39d It's possible to commute instrctions with more than 3 operands. 
llvm-svn: 43256
 2007-10-23 20:14:40 +00:00
Evan Cheng
dc2f1b1741 isSubRegOf() is a dup of isSubRegister. 
llvm-svn: 43249
 2007-10-23 06:51:50 +00:00
Evan Cheng
0590c75f18 Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64. 
llvm-svn: 43248
 2007-10-23 06:42:42 +00:00
Evan Cheng
252d9ddb4d Fix memcpy lowering when addresses are 4-byte aligned but size is not multiple of 4. 
llvm-svn: 43234
 2007-10-22 22:11:27 +00:00
Dan Gohman
e223bab494 The #include <iterator> isn't needed in this header. 
llvm-svn: 43232
 2007-10-22 20:44:10 +00:00
Dan Gohman
df1f166e4a Strength reduction improvements. 
- Avoid attempting stride-reuse in the case that there are users that
   aren't addresses. In that case, there will be places where the
   multiplications won't be folded away, so it's better to try to
   strength-reduce them.

 - Several SSE intrinsics have operands that strength-reduction can
   treat as addresses. The previous item makes this more visible, as
   any non-address use of an IV can inhibit stride-reuse.

 - Make ValidStride aware of whether there's likely to be a base
   register in the address computation. This prevents it from thinking
   that things like stride 9 are valid on x86 when the base register is
   already occupied.

Also, XFAIL the 2007-08-10-LEA16Use32.ll test; the new logic to avoid
stride-reuse elimintes the LEA in the loop, so the test is no longer
testing what it was intended to test.

llvm-svn: 43231
 2007-10-22 20:40:42 +00:00
Dan Gohman
76e104c8ad Fix the folding of multiplication into addresses on x86, which was broken 
by the recent {U,S}MUL_LOHI changes.

llvm-svn: 43230
 2007-10-22 20:22:24 +00:00
Evan Cheng
85eb733eff Use ptr type in the immediate field of a BxA instruction so we don't end up selecting 32-bit call instruction for ppc64. 
llvm-svn: 43228
 2007-10-22 19:46:19 +00:00
Evan Cheng
fdd01c99f2 Add missing paratheses. 
llvm-svn: 43227
 2007-10-22 19:42:28 +00:00
Duncan Sands
b47c73b341 Support for expanding extending loads of integers with 
funky bit-widths.

llvm-svn: 43225
 2007-10-22 19:00:05 +00:00
Dan Gohman
68fc6d7395 Move the SCEV object factors from being static members of the individual 
SCEV subclasses to being non-static member functions of the ScalarEvolution
class.

llvm-svn: 43224
 2007-10-22 18:31:58 +00:00
Duncan Sands
4df76bb946 Fix up the logic for result expanding the various extension 
operations so they work right for integers with funky
bit-widths.  For example, consider extending i48 to i64
on a 32 bit machine.  The i64 result is expanded to 2 x i32.
We know that the i48 operand will be promoted to i64, then
also expanded to 2 x i32.  If we had the expanded promoted
operand to hand, then expanding the result would be trivial.
Unfortunately at this stage we can only get hold of the
promoted operand.  So instead we kind of hand-expand, doing
explicit shifting and truncating to get the top and bottom
halves of the i64 operand into 2 x i32, which are then used
to expand the result.  This is harmless, because when the
promoted operand is finally expanded all this bit fiddling
turns into trivial operations which are eliminated either
by the expansion code itself or the DAG combiner.

llvm-svn: 43223
 2007-10-22 18:26:21 +00:00
Evan Cheng
ddeab10144 Fix an unfolding bug. 
llvm-svn: 43212
 2007-10-22 03:03:20 +00:00
Evan Cheng
d06938ff7f - Only perform the unfolding optimization when the folding in question is modref. 
- Remove a bogus assertion.

llvm-svn: 43211
 2007-10-22 03:01:44 +00:00
Chris Lattner
ecea068eb2 add a mechanism for the JIT to invoke a function to lazily create functions as they are referenced. 
llvm-svn: 43210
 2007-10-22 02:50:12 +00:00
Chris Lattner
14bd59e060 llvm-gcc3 is dead, along with it __main. 
llvm-svn: 43209
 2007-10-22 02:39:47 +00:00
Anton Korobeynikov
bcee4726bf Reg2Mem cleanup and optimizations: 
- enable phi instructions demotion to stack
 - create alloca instructions in the entry block

llvm-svn: 43208
 2007-10-21 23:05:16 +00:00
Chris Lattner
dce89c65cc LoadLibraryPermanently doesn't throw. 
llvm-svn: 43207
 2007-10-21 22:58:11 +00:00
Chris Lattner
712119a5ed Add a convenience method for creating EE's. 
llvm-svn: 43206
 2007-10-21 22:57:11 +00:00
Dale Johannesen
2edd0fb69d Allow for copysign having f80 second argument. 
Fixes 5550319.

llvm-svn: 43205
 2007-10-21 01:07:44 +00:00
Chris Lattner
34bb3728ff Add promote operand support for [su]int_to_fp. 
llvm-svn: 43204
 2007-10-20 22:57:56 +00:00
Chris Lattner
1c4c6a384e Add result promotion of FP_TO_*INT, fixing CodeGen/X86/trunc-to-bool.ll 
with the new legalizer.

llvm-svn: 43199
 2007-10-20 04:32:38 +00:00
Chris Lattner
aa6d58c766 simplify some code. 
llvm-svn: 43198
 2007-10-20 04:09:48 +00:00
Chris Lattner
70abd7943f Implement promote and expand for operands of memcpy and friends. 
This fixes CodeGen/X86/mem*.ll.

llvm-svn: 43197
 2007-10-20 04:07:07 +00:00
Evan Cheng
7df9c5e089 Added missing curly braces which renders the if clause useless in debug build. 
llvm-svn: 43196
 2007-10-20 04:01:47 +00:00
Dale Johannesen
f28404f7e8 Fix a few places vector operations were not getting 
the operand's type from the right place.

llvm-svn: 43195
 2007-10-20 00:07:52 +00:00
Evan Cheng
b56784f9ea Resolve unfold tables ambiguity. 
llvm-svn: 43194
 2007-10-19 23:50:58 +00:00
Evan Cheng
ded6550885 Local spiller optimization: 
Turn a store folding instruction into a load folding instruction. e.g.
     xorl  %edi, %eax
     movl  %eax, -32(%ebp)
     movl  -36(%ebp), %eax
     orl   %eax, -32(%ebp)
=>
     xorl  %edi, %eax
     orl   -36(%ebp), %eax
     mov   %eax, -32(%ebp)
This enables the unfolding optimization for a subsequent instruction which will
also eliminate the newly introduced store instruction.

llvm-svn: 43192
 2007-10-19 21:23:22 +00:00
Bill Wendling
df262eb966 Don't branch fold inline asm statements. 
llvm-svn: 43191
 2007-10-19 21:09:55 +00:00
Duncan Sands
4dcd783a69 Add support for a few more nodes. 
llvm-svn: 43190
 2007-10-19 20:29:48 +00:00
Dale Johannesen
4ae755d15c Redo "last ppc long double fix" as Chris wants. 
llvm-svn: 43189
 2007-10-19 20:29:00 +00:00
Chris Lattner
8c40f019c3 Fix a really nasty vector miscompilation bill recently introduced. 
llvm-svn: 43181
 2007-10-19 16:47:35 +00:00
Chris Lattner
45b8558ec5 rename ExpandOperation to ExpandOperationResult, as suggested 
by Duncan

llvm-svn: 43177
 2007-10-19 15:28:47 +00:00
Rafael Espindola
c751cbdb02 split LowerMEMCPY into LowerMEMCPYCall and LowerMEMCPYInline in the ARM backend. 
llvm-svn: 43176
 2007-10-19 14:35:17 +00:00
Duncan Sands
1d41485be4 Support for expanding ADDE and SUBE. 
llvm-svn: 43175
 2007-10-19 13:06:17 +00:00
Duncan Sands
1bc7997ce7 If the value types are equal then this routine 
asserts in later checks rather than producing
the ordinary load it is supposed to.  Avoid all
such hassles by directly returning an ordinary
load in this case.

llvm-svn: 43174
 2007-10-19 13:05:40 +00:00
Rafael Espindola
d8d4372845 Add support for byval function whose argument is not 32 bit aligned. 
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset.  I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)

llvm-svn: 43172
 2007-10-19 10:41:11 +00:00
Chris Lattner
d459e119ba Implement a few new operations. 
llvm-svn: 43171
 2007-10-19 04:46:45 +00:00
Chris Lattner
fb5bc2fee1 Implement expansion of SINT_TO_FP and UINT_TO_FP operands. 
llvm-svn: 43170
 2007-10-19 04:32:47 +00:00
Chris Lattner
890221835b implement support for custom expansion of any node type, in one place. 
llvm-svn: 43169
 2007-10-19 04:14:36 +00:00
Chris Lattner
4354f2db6a comment fixes 
llvm-svn: 43168
 2007-10-19 04:08:28 +00:00
Chris Lattner
e066099b95 Make use of TLI.ExpandOperation, remove softfloat stuff. 
llvm-svn: 43167
 2007-10-19 03:58:25 +00:00
Chris Lattner
a4505cae9f add expand support for bit_convert result, even allowing custom expansion. 
llvm-svn: 43166
 2007-10-19 03:33:14 +00:00
Chris Lattner
f02434cdaf add a new target hook. 
llvm-svn: 43165
 2007-10-19 03:31:45 +00:00
Chris Lattner
57e2fa4ba0 Add an easy microoptimization I noticed. 
llvm-svn: 43164
 2007-10-19 03:29:26 +00:00
Bill Wendling
84baa3a5b5 Negative indices aren't allowed here. 
llvm-svn: 43161
 2007-10-19 01:10:49 +00:00
Dale Johannesen
b23b0bfa8f More ppcf128 issues (maybe the last)? 
llvm-svn: 43160
 2007-10-19 00:59:18 +00:00
Evan Cheng
0449186690 - Added getOpcodeAfterMemoryUnfold(). It doesn't unfold an instruction, but only returns the opcode of the instruction post unfolding. 
- Fix some copy+paste bugs.

llvm-svn: 43153
 2007-10-18 22:40:57 +00:00
Evan Cheng
c852780685 Use SmallVectorImpl instead of SmallVector with hardcoded size in MRegister public interface. 
llvm-svn: 43150
 2007-10-18 21:29:24 +00:00
Devang Patel
eff4619cc8 Try again. 
Instead of loading small global string from memory, use
integer constant.

llvm-svn: 43148
 2007-10-18 19:52:32 +00:00
Owen Anderson
f0e040a0c7 Allow GVN to eliminate redundant calls to functions without side effects. 
llvm-svn: 43147
 2007-10-18 19:39:33 +00:00
Christopher Lamb
7f21e45b06 Fix a misnamed parameter. 
llvm-svn: 43145
 2007-10-18 19:29:45 +00:00
Christopher Lamb
a26b82ea94 Fix a typo 
llvm-svn: 43144
 2007-10-18 19:28:55 +00:00
Chris Lattner
efaf4ba65d Fix PR1735 and Transforms/DeadArgElim/2007-10-18-VarargsReturn.ll by 
fixing some obviously broken code :(

llvm-svn: 43141
 2007-10-18 18:49:29 +00:00
Chris Lattner
61de0c50b7 this doesn't need dynamic_cast. 
llvm-svn: 43133
 2007-10-18 16:26:24 +00:00
Chris Lattner
4656de62bf Reduce reliance on rtti info 
llvm-svn: 43130
 2007-10-18 16:11:18 +00:00
Chris Lattner
80a2b5e53b fix typo 
llvm-svn: 43129
 2007-10-18 16:10:48 +00:00
Chris Lattner
cee5f18fb6 This requires rtti info because tblgen uses commandline, 
and tblgen requires rtti.

llvm-svn: 43127
 2007-10-18 15:57:29 +00:00
Gordon Henriksen
3b309c68d1 Work around downrev gccs which do not inherit visibility of the 
Registry<>::iterator member class.

llvm-svn: 43122
 2007-10-18 11:53:05 +00:00
Bill Wendling
32c9cd9e94 Pointer arithmetic should be done with the index the same size as the pointer. 
llvm-svn: 43120
 2007-10-18 08:32:37 +00:00
Duncan Sands
68026c73d6 Support for ADDC/SUBC. 
llvm-svn: 43119
 2007-10-18 08:22:16 +00:00
Evan Cheng
f6d1c7be14 Really fix PR1734. Carefully track which register uses are sub-register uses by 
traversing inverse register coalescing map.

llvm-svn: 43118
 2007-10-18 07:49:59 +00:00
Chris Lattner
374b185092 legalizing the ret operation on f64 shouldn't introduce a new 
i64 bit convert needlessly.

llvm-svn: 43116
 2007-10-18 06:17:07 +00:00
Owen Anderson
4b407757d0 Move Split<...>() into DomTreeBase. This should make the #include's of DominatorInternals.h 
in CodeExtractor and LoopSimplify unnecessary.

Hartmut, could you confirm that this fixes the issues you were seeing?

llvm-svn: 43115
 2007-10-18 05:13:52 +00:00
Evan Cheng
1c34d807ce Reverting r43070 for now. It's causing llc test failures. 
llvm-svn: 43103
 2007-10-17 23:51:13 +00:00
Gordon Henriksen
a6050b38d2 Switching TargetMachineRegistry to use the new generic Registry. 
llvm-svn: 43094
 2007-10-17 21:28:48 +00:00
Devang Patel
9cb3c09156 Do not raise free() call that is called through invoke instruction. 
llvm-svn: 43083
 2007-10-17 20:12:58 +00:00
Hartmut Kaiser
4cbb4f081b Fixed linker errors (unresolved externals: split<>(...)) when compiling with VC++. Please review. 
llvm-svn: 43081
 2007-10-17 18:37:09 +00:00
Dan Gohman
231159e8a3 Define a helper function ConstantVector::getSplatValue for testing for 
and working with broadcasted constants.

llvm-svn: 43076
 2007-10-17 17:51:30 +00:00
Dan Gohman
2903f7fc26 Add support for ISD::SELECT in SplitVectorOp. 
llvm-svn: 43072
 2007-10-17 14:48:28 +00:00
Duncan Sands
0a5a15c3a0 Return Expand from getOperationAction for all extended 
types.  This is needed for SIGN_EXTEND_INREG at least.
It is not clear if this is correct for other operations.
On the other hand, for the various load/store actions
it seems to correct to return the type action, as is
currently done.
Also, it seems that SelectionDAG::getValueType can be
called for extended value types; introduce a map for
holding these, since we don't really want to extend
the vector to be 2^32 pointers long!
Generalize DAGTypeLegalizer::PromoteResult_TRUNCATE
and DAGTypeLegalizer::PromoteResult_INT_EXTEND to handle
the various funky possibilities that apints introduce,
for example that you can promote to a type that needs
to be expanded.

llvm-svn: 43071
 2007-10-17 13:49:58 +00:00
Devang Patel
cf2f9d6daa Apply "Instead of loading small c string constant, use integer constant directly" transformation while processing load instruction. 
llvm-svn: 43070
 2007-10-17 07:24:40 +00:00
Evan Cheng
4bba09dc4e Apply Chris' suggestions. 
llvm-svn: 43069
 2007-10-17 06:53:44 +00:00
Chris Lattner
3a19e981f5 Change fp to sint legalization on x86-32 to do 2 x i32 
loads instead of 1 x i64 loads.  This doesn't change any functionality yet.

llvm-svn: 43068
 2007-10-17 06:17:29 +00:00
Chris Lattner
ba2d55a564 fix some funny indentation, add comments. 
llvm-svn: 43066
 2007-10-17 06:02:13 +00:00
Evan Cheng
18a3c3dd37 One more extract_subreg coalescing bug fix. 
llvm-svn: 43065
 2007-10-17 05:29:37 +00:00
Evan Cheng
0899e1e26c Fix MergeValueInAsValue(). It allows overlapping live ranges but should replace 
their value numbers with the specified value number.

llvm-svn: 43062
 2007-10-17 02:13:29 +00:00
Evan Cheng
d292b1c096 Clean up code that calculate MBB live-in's. 
llvm-svn: 43061
 2007-10-17 02:12:22 +00:00
Evan Cheng
be47f9df2e Clean up code that calculate MBB live-in's. 
llvm-svn: 43060
 2007-10-17 02:10:22 +00:00
Owen Anderson
1235d1218b Move splitBlock into DomTreeBase from DomTree. 
llvm-svn: 43059
 2007-10-17 02:03:17 +00:00
Devang Patel
c3d0477a0e Use immediate stores. 
llvm-svn: 43055
 2007-10-16 23:44:18 +00:00
Dale Johannesen
fdb488d4b5 Disable attempts to constant fold PPC f128. 
Remove the assumption that this will happen from
various places.

llvm-svn: 43053
 2007-10-16 23:38:29 +00:00
Evan Cheng
97ada80b22 Some clean up. 
llvm-svn: 43043
 2007-10-16 21:09:14 +00:00
Owen Anderson
43fefb53a6 Template DominatorTreeBase by node type. This is the next major step towards 
having dominator information on MBB's.

llvm-svn: 43036
 2007-10-16 19:59:25 +00:00
Evan Cheng
09fa6ed483 Fix PR1734. 
llvm-svn: 43035
 2007-10-16 19:29:47 +00:00
Dale Johannesen
63411d36bf Check for invalid cc's in f80 select. 
llvm-svn: 43033
 2007-10-16 18:09:08 +00:00
Chris Lattner
45d9c7aa07 Fix a bug handling frame references in ppc inline asm when the frame offset 
doesn't fit into 16 bits.

llvm-svn: 43032
 2007-10-16 18:00:18 +00:00
Duncan Sands
9d622a6de1 Initial infrastructure for arbitrary precision integer 
codegen support.  This should have no effect on codegen
for other types.  Debatable bits: (1) the use (abuse?)
of a set in SDNode::getValueTypeList; (2) the length of
getTypeToTransformTo, which maybe should be refactored
with a non-inline part for extended value types.

llvm-svn: 43030
 2007-10-16 09:56:48 +00:00
Duncan Sands
12d0747c70 Fixes due to lack of type-safety for ValueType: (1) ValueType 
being passed instead of an opcode; (2) ValueType being passed
for isVolatile (!) in getLoad.

llvm-svn: 43028
 2007-10-16 09:07:20 +00:00
Arnold Schwaighofer
f0d4d73bf6 Correction to tail call optimization code. The new return address 
was stored to the acutal stack slot before the parameters were
lowered to their stack slot. This could cause arguments to be
overwritten by the return address if the called function had less
parameters than the caller function. The update should remove the
last failing test case of llc-beta: SPASS.

llvm-svn: 43027
 2007-10-16 09:05:00 +00:00
Evan Cheng
69092e7585 Code clean up. 
llvm-svn: 43026
 2007-10-16 08:04:24 +00:00
Chris Lattner
427c187f46 implement promotion of select and select_cc, allowing MallocBench/gs to 
work with type promotion on x86.

llvm-svn: 43025
 2007-10-16 03:00:22 +00:00
Dan Gohman
f5dc4d4f9b Teach IntrinsicLowering.cpp about the sin, cos, and pow intrinsics. 
llvm-svn: 43020
 2007-10-15 22:07:31 +00:00
Evan Cheng
3650ad3e51 Make CalcLatency() non-recursive. 
llvm-svn: 43017
 2007-10-15 21:33:22 +00:00
Chris Lattner
c641c8c6ec Change LowerFP_TO_SINT to create the specific code it needs instead of 
unconditionally creating an i64 bitcast.  With the future legalizer
design, operation legalization can't introduce new nodes with illegal
types.

This fixes the rest of olden on ppc32.

llvm-svn: 43005
 2007-10-15 20:14:52 +00:00
Evan Cheng
f5bcd3d737 LowerFP_TO_SINT must not create a stack object if it's not needed. 
llvm-svn: 43004
 2007-10-15 20:11:21 +00:00
Devang Patel
b4a9a2e418 Add removeModuleProvider() 
llvm-svn: 43002
 2007-10-15 19:56:32 +00:00
Evan Cheng
43887d3714 Fix PR1729: watch out for val# with no def. 
llvm-svn: 42996
 2007-10-15 18:33:50 +00:00
Chris Lattner
542fa12f9a Move CreateStackTemporary out to SelectionDAG 
llvm-svn: 42995
 2007-10-15 17:48:57 +00:00
Chris Lattner
292bebbb6f add a new CreateStackTemporary helper method. 
llvm-svn: 42994
 2007-10-15 17:47:20 +00:00