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Author SHA1 Message Date
Chris Lattner
c3942eb95d make this file properly self contained. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 08:19:49 +00:00
Chris Lattner
b5fa5fcecc Revamp the ValueMapper interfaces in a couple ways: 
1. Take a flags argument instead of a bool.  This makes
   it more clear to the reader what it is used for.
2. Add a flag that says that "remapping a value not in the
   map is ok".
3. Reimplement MapValue to share a bunch of code and be a lot
   more efficient.  For lookup failures, don't drop null values
   into the map.
4. Using the new flag a bunch of code can vaporize in LinkModules
   and LoopUnswitch, kill it.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123058 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 08:15:20 +00:00
Chris Lattner
6ccb365293 two minor changes: switch to the standard ValueToValueMapTy 
map from ValueMapper.h (giving us access to its utilities)
and add a fastpath in the loop rotation code, avoiding expensive
ssa updator manipulation for values with nothing to update.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 07:21:31 +00:00
Eric Christopher
da7a32c07d I don't think I could find a 10.2.x box if I tried. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123051 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 01:52:20 +00:00
Evan Cheng
55d4200336 Recognize inline asm 'rev /bin/bash, ' as a bswap intrinsic call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123048 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-08 01:24:27 +00:00
Evan Cheng
c36b7069b4 Do not model all INLINEASM instructions as having unmodelled side effects. 
Instead encode llvm IR level property "HasSideEffects" in an operand (shared
with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check
the operand when the instruction is an INLINEASM.

This allows memory instructions to be moved around INLINEASM instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 23:50:32 +00:00
Bob Wilson
067a16c974 Use __builtin_shufflevector to implement vget_low and vget_high intrinsics. 
This was suggested by Edmund Grimley Evans in pr8411.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123043 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 23:40:49 +00:00
Bob Wilson
70f85730b1 Add an explanatory message for an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123042 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 23:40:46 +00:00
Matt Beaumont-Gay
697970286a Eliminate variable only used in debug builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123040 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 22:34:58 +00:00
Devang Patel
51a666f0e5 Speculatively revert r123032. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123039 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 22:33:41 +00:00
Devang Patel
6a6623c596 Do not include DataTypes.h in llvm-c/lto.h. 
This means avoid using uint32_t. This patch reverts r112200 and fixes original  problem by fixing argument type in lto.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123038 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 22:26:25 +00:00
Evan Cheng
7c7e2da4aa Fix comment. INLINEASM node operand #3 is IsAlignStack bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123036 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:38:59 +00:00
Bob Wilson
11a1dfffc8 Lower some BUILD_VECTORS using VEXT+shuffle. 
Patch by Tim Northover.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123035 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:37:30 +00:00
Tobias Grosser
46431d7a93 InstCombine: Match min/max hidden by sext/zext 
X = sext x; x >s c ? X : C+1 --> X = sext x; X <s C+1 ? C+1 : X
X = sext x; x <s c ? X : C-1 --> X = sext x; X >s C-1 ? C-1 : X
X = zext x; x >u c ? X : C+1 --> X = zext x; X <u C+1 ? C+1 : X
X = zext x; x <u c ? X : C-1 --> X = zext x; X >u C-1 ? C-1 : X
X = sext x; x >u c ? X : C+1 --> X = sext x; X <u C+1 ? C+1 : X
X = sext x; x <u c ? X : C-1 --> X = sext x; X >u C-1 ? C-1 : X

Instead of calculating this with mixed types promote all to the
larger type. This enables scalar evolution to analyze this
expression. PR8866

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123034 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:33:14 +00:00
Tobias Grosser
8d088bd1e4 Some whitespace fixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123033 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:33:13 +00:00
Devang Patel
1dea232624 Appropriately truncate debug info range in dwarf output. 
Enable live debug variables pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123032 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:30:41 +00:00
Evan Cheng
30a343aeed DBG_VALUE does not have any side effects; it also makes no sense to mark it cheap as a copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123031 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 21:08:26 +00:00
Benjamin Kramer
eaff66a895 Revert 122959, it needs more thought. Add it back to README.txt with additional notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123030 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 20:42:20 +00:00
Oscar Fuentes
53bf3ee82b Don't use -O3 on Mingw, as people report it as unreliable. Use -O2 
instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 20:31:03 +00:00
Jay Foad
8e3914d12e Simplify the allocation and freeing of Users' operand lists, now that 
every BranchInst has a fixed number of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123027 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 20:29:02 +00:00
Jay Foad
43eaadeea5 Remove the "ugly" method BranchInst::setUnconditionalDest(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123026 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 20:26:51 +00:00
Jay Foad
8f9ffbd056 Remove all uses of the "ugly" method BranchInst::setUnconditionalDest(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123025 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 20:25:56 +00:00
Evan Cheng
a5e1362f96 Revert r122955. It seems using movups to lower memcpy can cause massive regression (even on Nehalem) in edge cases. I also didn't see any real performance benefit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 19:35:30 +00:00
David Greene
1434f66b2e Rename lisp-like functions as suggested by Gabor Greif as loooong time 
ago.  This is both easier to learn and easier to read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123001 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 17:05:37 +00:00
Benjamin Kramer
50dd09bd85 Try to unbreak the arm buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122999 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 11:35:21 +00:00
Bob Wilson
8a644f4f6f Add testcases for PR8411 (vget_low and vget_high implemented as shuffles). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122997 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 06:44:14 +00:00
Bob Wilson
5e8b833707 Add ARM patterns to match EXTRACT_SUBVECTOR nodes. 
Also fix an off-by-one in SelectionDAGBuilder that was preventing shuffle
vectors from being translated to EXTRACT_SUBVECTOR.
Patch by Tim Northover.

The test changes are needed to keep those spill-q tests from testing aligned
spills and restores.  If the only aligned stack objects are spill slots, we
no longer realign the stack frame.  Prior to this patch, an EXTRACT_SUBVECTOR
was legalized by loading from the stack, which created an aligned frame index.
Now, however, there is nothing except the spill slot in the stack frame, so
I added an aligned alloca.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122995 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 04:59:04 +00:00
Bob Wilson
67b067d2f9 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122994 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 04:58:58 +00:00
Bob Wilson
6736e19f4c Change EXTRACT_SUBVECTOR to require a constant index. 
We were never generating any of these nodes with variable indices, and there
was one legalizer function asserting on a non-constant index.  If we ever have
a need to support variable indices, we can add this back again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122993 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 04:58:56 +00:00
Bill Wendling
8d90b7190f Early exit if we don't have invokes. The 'Unwinds' vector isn't modified unless 
we have invokes, so there is no functionality change here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122990 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-07 02:54:45 +00:00
Duncan Sands
d9aa80038f Fix the other problem reported in PR8582. Testcase and patch by 
Nadav Rotem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122983 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 23:45:22 +00:00
Duncan Sands
1f2b00c710 Add a testcase for PR8582, which mysteriously fixed itself, in case the problem 
comes back some day.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122982 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 23:04:29 +00:00
Eric Christopher
8d93d19076 Add some fairly duplicated code to let type legalization split illegal 
typed atomics. This will lower exclusively to libcalls at the moment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122979 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 22:28:56 +00:00
Chris Lattner
01cdc2016d With Benjamin's recent amazing patches, we should be able to do even better things :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122978 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 22:25:00 +00:00
Chris Lattner
f1cadf2899 use isNullValue() to simplify code, add an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122977 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 22:24:29 +00:00
Devang Patel
76a788c886 Emit 128 bit constant. 
This fixes PR 8913 crash.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122971 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 21:39:25 +00:00
Bob Wilson
6819dbb6f8 PR8921: LDM/POP do not support interworking prior to v5t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122970 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 19:24:41 +00:00
Bob Wilson
28f1015e36 Remove extra whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122969 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 19:24:36 +00:00
Bob Wilson
0fef58465c Fix comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122968 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 19:24:32 +00:00
Benjamin Kramer
fa36680076 Add a note from llvmdev, this time with more info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122966 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 17:35:50 +00:00
Abramo Bagnara
4bb46f43eb Fixed parsing of hex floats. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122963 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 16:55:14 +00:00
Rafael Espindola
2f867a63da Correctly disassemble truncated asm. 
Patch by Richard Simth.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122962 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 16:48:42 +00:00
Benjamin Kramer
8143a84c46 InstCombine: Turn _chk functions into the "unsafe" variant if length and max langth are equal. 
This happens when we take the (non-constant) length from a malloc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122961 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 14:22:52 +00:00
Benjamin Kramer
7d9f51f4b5 EarlyCSE does this now (and GVN always did it). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122960 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:19:46 +00:00
Benjamin Kramer
240d42d185 InstCombine: If we call llvm.objectsize on a malloc call we can replace it with the size passed to malloc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122959 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:11:05 +00:00
Benjamin Kramer
783a5c2b69 InstCombine: Teach llvm.objectsize folding to look through GEPs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122958 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:07:49 +00:00
Benjamin Kramer
5191e7cc26 Remove dead code and silence warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122957 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 13:01:02 +00:00
Evan Cheng
461f1fc359 Use movups to lower memcpy and memset even if it's not fast (like corei7). 
The theory is it's still faster than a pair of movq / a quad of movl. This
will probably hurt older chips like P4 but should run faster on current
and future Intel processors. rdar://8817010


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122955 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:58:36 +00:00
Chris Lattner
cce240d26b add a note about object size from drystone, add a poorly optimized loop from 179.art. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122954 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:41:22 +00:00
Chris Lattner
c1853e4a03 add a trivial instcombine missed in Dhrystone 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-06 07:09:23 +00:00