Commit Graph

5085 Commits

Author SHA1 Message Date
Dan Gohman
a332f17c8c Generalize the new code in instcombine's ComputeNumSignBits for handling
and/or to handle more cases (such as this add-sitofp.ll testcase), and
port it to selectiondag's ComputeNumSignBits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51469 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 02:28:01 +00:00
Bill Wendling
f3061f8210 Remove warnings about comparison between signed and unsigned expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 01:29:08 +00:00
Dan Gohman
4fa2a3f0ef Use isSingleValueType instead of isFirstClassType to
exclude struct and array types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51460 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 00:34:04 +00:00
Dan Gohman
399101a599 Use isSingleValueType instead of isFirstClassType to
exclude struct and array types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 00:17:26 +00:00
David Greene
abe93d95e8 When rewriting defs and uses after spilling, don't set the weight of a
live interval to infinity if the instruction being rewritten is an
original remat def instruction.  We were only checking against the clone
of the remat def which doesn't actually appear in the IR at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51440 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22 21:16:33 +00:00
David Greene
cff860801e Don't attempt to update SpillSlotToUsesMap for stack slots that aren't
generated by the spiller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51439 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-22 21:12:21 +00:00
Evan Cheng
f4ea510371 Fix PR2343. An *interesting* coalescer bug.
BB1:                                                                                                                                                  
  vr1025 = copy vr1024                                                                                                                                
  ..                                                                                                                                                  
BB2:                                                                                                                                                  
  vr1024 = op                                                                                                                                         
         = op vr1025                                                                                                                                     
  <loop eventually branch back to BB1>

Even though vr1025 is copied from vr1024, it's not safe to coalesced them since live range of vr1025 intersects the def of vr1024. This happens when vr1025 is assigned the value of the previous iteration of vr1024 in the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-21 22:34:12 +00:00
Dan Gohman
c84941be0a Port the fix for the select operator from instcombine's
ComputeNumSignBits to SelectionDAG's ComputeNumSignBits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 20:59:51 +00:00
Dan Gohman
1fdfa6aabf Code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51345 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 20:56:33 +00:00
Evan Cheng
7a0f1851ec More local spiller complexity!
If local spiller optimization turns some instruction into an identity copy, it will be removed. If the output register happens to be dead (and source is obviously killed), transfer the kill / dead information to last use / def in the same MBB.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51306 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 08:13:21 +00:00
Evan Cheng
b0a6f62c9b Don't spill dead def.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51305 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 08:10:37 +00:00
Dale Johannesen
c215b3ef5d Handle quoted names when constructing $stub's,
$non_lazy_ptr's and $lazy_ptr's.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-19 21:38:18 +00:00
Gabor Greif
7cbd8a3e92 API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 19:29:10 +00:00
Evan Cheng
446efddfcd If the result of a BIT_CONVERT is a v1* vector, it doesn't mean its source is a v1* vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 17:19:05 +00:00
Duncan Sands
419cafb9fb Silence the compiler warning differently. The
original method caused gcc-4.2 to complain.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51186 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-16 09:19:16 +00:00
Nate Begeman
b434513a20 Actually scalarize the operand to BIT_CONVERT instead of asking someone to do
something with a v1 type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15 20:40:58 +00:00
Dan Gohman
041e2eb517 IR support for extractvalue and insertvalue instructions. Also, begin
moving toward making structs and arrays first-class types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15 19:50:34 +00:00
Evan Cheng
f0df03134e Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-15 08:39:06 +00:00
Evan Cheng
97e60d9e8c Use a better idiom to silence compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51131 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 21:08:07 +00:00
Evan Cheng
3521334467 Really silence compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:29:30 +00:00
Evan Cheng
b2031145e3 Really silence compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:26:35 +00:00
Dale Johannesen
aafce77b17 Add CommonLinkage; currently tentative definitions
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:12:51 +00:00
Evan Cheng
5087124721 Silence some compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51115 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 20:07:51 +00:00
Dan Gohman
d64a78c9ed When bit-twiddling CondCode values for integer comparisons produces
SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51112 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 18:17:09 +00:00
Dan Gohman
9c78a39907 Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51089 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-14 00:43:10 +00:00
Evan Cheng
77f0b7a50a Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 08:35:03 +00:00
Dan Gohman
6ddba2b933 Change class' public PassInfo variables to by initialized with the
address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.

Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 02:05:11 +00:00
Dan Gohman
844731a7f1 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 00:00:25 +00:00
Nate Begeman
0d1704b955 Teach Legalize how to scalarize VSETCC
Teach X86 a few more vsetcc patterns.  Custom lowering for unsupported ones is next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51009 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 23:09:43 +00:00
Evan Cheng
9bfa03c6fd Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51008 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 23:04:07 +00:00
Dale Johannesen
30562b7d44 Be more aggressive about tail-merging small blocks
if those blocks consist entirely of common instructions;
merging will not add an extra branch in this case.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 22:53:12 +00:00
Bill Wendling
ae94dda61a Constify isSourceDefinedByImplicitDef function. Otherwise, just formatting
changes that don't change functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51004 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 22:15:05 +00:00
Dale Johannesen
51b2b9e29e Further rework of tail merge algorithm. Not quite
semantically identical, but little difference in
either results or execution speed; but it's much
easier to read, at least IMO.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50999 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 20:33:57 +00:00
Evan Cheng
ad4196b44a Refactor isConsecutiveLoad from X86 to TargetLowering so DAG combiner can make use of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50991 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 19:56:52 +00:00
Bill Wendling
c1b7f52fbe Revert the previous commit. Go ahead and hoist rematerializable instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 19:47:18 +00:00
Nate Begeman
b43e9c1965 Add support for vicmp/vfcmp codegen, more legalize support coming.
This is necessary to unbreak the build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50988 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 19:40:03 +00:00
Bill Wendling
e4fc1ccd4d One real change - don't hoist something that's trivially rematerializable. It's
possible for it to produce worse code than before.

The rest of this patch is code cleanup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50987 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 19:38:32 +00:00
Dan Gohman
9ab9ee8209 Fix a missing break in the ISD::FLT_ROUNDS_ handling. Patch by giuma!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50967 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-12 16:07:15 +00:00
Evan Cheng
b3e0a6d75c If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 00:17:50 +00:00
Bill Wendling
637980edce Cosmetic changes:
- Comment fixes.
 - Moar whitespace.
 - Made ivars "private" by default.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-10 00:12:52 +00:00
Dale Johannesen
6b8583cbf1 Remove an evil vector bool. Cosmetic refactoring,
no functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 23:28:24 +00:00
Dale Johannesen
6ae83faadf 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09 21:24:35 +00:00
Duncan Sands
43b30a8287 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50850 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08 12:33:11 +00:00
Anton Korobeynikov
0b12ecf6ff Turn StripPointerCast() into a method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 22:54:15 +00:00
Duncan Sands
671fa97a4b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50825 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 19:11:09 +00:00
Evan Cheng
7ebc06bfd8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:49:28 +00:00
Dan Gohman
42ac929ed9 Fix a bug in the ComputeMaskedBits logic for multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50793 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07 00:35:55 +00:00
Anton Korobeynikov
b04adddd50 Make StripPointerCast a common function (should we mak it method of Value instead?)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50775 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 22:52:30 +00:00
Dan Gohman
4a3f6c8882 Make several variable declarations static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 01:53:16 +00:00
Dan Gohman
84b7df43fb Remove uses of llvm/System/IncludeFile.h that are no longer needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-06 01:32:53 +00:00