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Author SHA1 Message Date
Dan Gohman
ec1f1a8bd2 Clean up some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49661 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 17:45:20 +00:00
Owen Anderson
6bc41e8a74 Revert r49614. As Dan pointed out, some of these aren't correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 17:38:21 +00:00
Nicolas Geoffray
9701c8a18f Fix /test/CodeGen/PowerPC/big-endian-actual-args.ll for linux/ppc32 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49652 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 17:17:14 +00:00
Chris Lattner
6c4be9c23b improve diagnostics in call parsing, patch suggested by 
Matthijs Kooijman


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 16:44:41 +00:00
Dan Gohman
d660f973dc VAArg may trap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49646 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 15:07:08 +00:00
Duncan Sands
ddc016cc85 Initial libcall support for LegalizeTypes. This is 
much simpler than in LegalizeDAG because calls are
not yet expanded into call sequences: that happens
after type legalization has finished.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49634 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-14 06:48:48 +00:00
Chris Lattner
75caee2419 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 19:41:25 +00:00
Chris Lattner
f99b286154 Add support for equality comparison of CallSite's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 19:40:26 +00:00
Owen Anderson
386ea355e7 Replace calls of the form V1->setName(V2->getName()) with V1->takeName(V2), 
which is significantly more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 19:15:17 +00:00
Duncan Sands
4a6da60787 LegalizeTypes can sometimes have deleted nodes 
in its maps.  Add some sanity checks that catch
this kind of thing.  Hopefully these can be
removed one day (once all problems are fixed!)
but for the moment it seems wise to have them in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 16:04:03 +00:00
Nicolas Geoffray
c0cb28fd3a Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 13:40:22 +00:00
Owen Anderson
fa0e66471f The functionality being tested was removed because it was horribly unsafe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 09:51:06 +00:00
Chris Lattner
3b37448904 Fix some serious logic errors that broke the jit on darwin/x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 07:04:56 +00:00
Duncan Sands
89f6d88db3 Merge LLVMBuilder and FoldingBuilder, calling 
the result IRBuilder.  Patch by Dominic Hamon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 06:22:09 +00:00
Chris Lattner
86941611c9 Gabor points out that reserveOperandSpace takes # of values, 
not # of operands as an input.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49599 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-13 00:14:42 +00:00
Anton Korobeynikov
78c80fdbdd Provide option for stack alignment override 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49593 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 22:12:22 +00:00
Arnold Schwaighofer
4b5324ad2c This patch corrects the handling of byval arguments for tailcall 
optimized x86-64 (and x86) calls so that they work (... at least for
my test cases).

Should fix the following problems:

Problem 1: When i introduced the optimized handling of arguments for
tail called functions (using a sequence of copyto/copyfrom virtual
registers instead of always lowering to top of the stack) i did not
handle byval arguments correctly e.g they did not work at all :).

Problem 2: On x86-64 after the arguments of the tail called function
are moved to their registers (which include ESI/RSI etc), tail call
optimization performs byval lowering which causes xSI,xDI, xCX
registers to be overwritten. This is handled in this patch by moving
the arguments to virtual registers first and after the byval lowering
the arguments are moved from those virtual registers back to
RSI/RDI/RCX.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49584 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 18:11:06 +00:00
Duncan Sands
460a14e09c Factor some libcall code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49583 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 17:14:18 +00:00
Dan Gohman
707e018423 Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal 
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49572 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 04:36:06 +00:00
Dan Gohman
6f836adafe Fix a bug that prevented x86-64 from using rep.movsq for 
8-byte-aligned data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49571 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 02:35:39 +00:00
Nate Begeman
6795ebb663 80 col fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 00:47:57 +00:00
Nate Begeman
e956398cf1 Restore code to disable crash catcher on older OS X systems 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 00:47:46 +00:00
Evan Cheng
97b8c40d09 Add debugging code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49566 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-12 00:22:01 +00:00
Chris Lattner
6098e4be94 Reenable JIT symbol table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49548 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 18:11:56 +00:00
Evan Cheng
f2b24ca2c7 Do not add empty live intervals to handled_. They should never be undone for backtracking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49544 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 17:55:47 +00:00
Evan Cheng
f870fbc554 If a PHI node has a single implicit_def source, replace it with an implicit_def instead of a copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49543 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 17:54:45 +00:00
Evan Cheng
4cce6b4c78 Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 17:53:36 +00:00
Devang Patel
6b893fced8 Change llvm tools install location. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49540 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 17:45:39 +00:00
Chris Lattner
30ac7df857 improvements for IntrusiveRefCntPtr, patch by Mikhail Glushenkov 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49538 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 16:42:06 +00:00
Duncan Sands
d918b7e915 The Ada front-end from the LLVM 2.2 release 
cannot be build with GNAT GPL 2006, only with
GNAT GPL 2005.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49529 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 13:24:43 +00:00
Gabor Greif
78256a199e detabify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49524 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 09:34:57 +00:00
Owen Anderson
c008c5e08c Add testcase for PR2213. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49517 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 05:13:32 +00:00
Owen Anderson
8f46c78fcc Fix PR2213 by simultaneously making GVN more aggressive with the return values 
of calls and less aggressive with non-readnone calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49516 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-11 05:11:49 +00:00
Evan Cheng
b94d966716 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49514 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:49:09 +00:00
Evan Cheng
d2012d0c4b Remove implicit_def instructions that become dead as result of coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:48:35 +00:00
Evan Cheng
5d3600f576 Allow registers defined by implicit_def to be clobbered. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49512 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:47:53 +00:00
Dan Gohman
c04575f494 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 23:02:38 +00:00
Dan Gohman
b1e07ec6a4 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49502 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 22:27:06 +00:00
Owen Anderson
f062f10231 Fix for PR2190. Memdep's non-local caching was checking dirtied blocks in the 
wrong order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49499 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 22:13:32 +00:00
Dan Gohman
3bd659ba20 Make several symbols static. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49496 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 21:11:47 +00:00
Dan Gohman
eee962e1ce Teach InstCombine's ComputeMaskedBits to handle pointer expressions 
in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.

Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.

This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49492 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 18:43:06 +00:00
Evan Cheng
172b70c62a A copy instruction may use a register multiple times on some targets. Change them all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49491 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 18:38:47 +00:00
Evan Cheng
f0785153e5 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49469 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 08:03:14 +00:00
Chris Lattner
2189c17443 add a note, this is actually not too bad to implement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49466 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:54:50 +00:00
Chris Lattner
a825d75f1d move the x86-32 part of PR2108 here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49465 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:37:47 +00:00
Chris Lattner
db66750753 Fix the x86-64 side of PR2108 by adding a v2f64 version of 
MOVZQI2PQIrr.  This would be better handled as a dag combine 
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely.  Thoughts welcome.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49463 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 05:13:43 +00:00
Chris Lattner
3dc2e96eec produce an error on invalid input instead of asserting: 
def : Pat<((v2f64 (vector_shuffle immAllZerosV_bc,
           ^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49462 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 04:48:34 +00:00
Evan Cheng
80b09fe8bc Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49461 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 02:32:10 +00:00
Chris Lattner
0c1963099f Disable an xform we've had for a long time, pow(x,0.5) -> sqrt. 
This is not safe for all inputs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49458 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 02:07:51 +00:00
Evan Cheng
5d4ed3ba11 Move memcpy / memset optimization pass after GVN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49457 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-04-10 01:33:05 +00:00