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29168 Commits

Author SHA1 Message Date
Bill Wendling
5c324d77d9 "The MMX_MASKMOVQ and MMX_MASKMOVQ64 instructions are labeled as MRMDestMem 
instructions, which implies that there is an explicit memory operand.  There is
(however) no explicit memory operand; although this is a store, the only memory
operand is implicit, indicated by DS:EDI.  This causes the table-generation code
for the disassembler to report an error."

Patch by Sean Callanan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73989 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 19:52:59 +00:00
Lang Hames
b2889959c4 Switched size_t to int64_t to prevent type mismatch in call to max. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 19:49:23 +00:00
Evan Cheng
a67efd1226 Proper patterns for thumb2 shift and rotate instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 19:39:13 +00:00
Evan Cheng
e870af4837 Code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 19:38:34 +00:00
Evan Cheng
09c39fcf83 Add IsThumb1Only to most 16-bit thumb instructions since we want to isel 32-bit instructions when they are available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 19:38:13 +00:00
Owen Anderson
f43f9d0ef8 Atomic ops that do arithmetic use signed arithmetic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 18:30:27 +00:00
Owen Anderson
14112e5169 Actually, these need to be signed integers, not unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73978 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 18:21:13 +00:00
Evan Cheng
e499f97058 Rename SelectShifterOperand to SelectThumb2ShifterOperandReg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 18:14:38 +00:00
Owen Anderson
cd92c1000e Use 64-bit integer counters for tracking time, rather than doubles. This will be more atomic op friendly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73974 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 18:12:30 +00:00
Owen Anderson
0de9953e88 Label the existing atomic functions as 32-bit specific, and add a 64-bit one that will be useful in 
the near future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 18:01:04 +00:00
Douglas Gregor
7e9e36a23e Eliminate object-relinking support from CMake. Fixes PR 4429 and 
cleans up the CMake-based build system a bit. Started by a patch from
Xerxes Rånby.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 17:57:35 +00:00
Evan Cheng
83a2129332 Obvious typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 17:54:26 +00:00
Evan Cheng
f49810c7e6 Initial Thumb2 support. Majority of the work is done by David Goodwin. There are 
also some contribution from Jim Grosbach, Bob Wilson, and Evan Cheng.

I've done my best to consolidate the patches with those that were done by
Viktor Kutuzov and Anton Korzh from Access Softek, Inc. Let me know if missed
anything. I've completely reorganized the thumb2 td file, made more extensive
uses of multiclass, etc.

Test cases will be contributed later after I re-organize what's in svn first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73965 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 17:48:47 +00:00
Owen Anderson
5a9c0eeaf2 Add an atomic add operation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 17:39:31 +00:00
Owen Anderson
3b8d135879 Make the lazy initialization of DefaultTimerGroup threadsafe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73963 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 17:33:37 +00:00
Owen Anderson
200aa6d89b Revert r73923, which broke clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 16:36:10 +00:00
Sanjiv Gupta
ae99227ef9 Fold the add (ptr, offset) into ptr[offset] only if the offset is small enough. movwi and moviw allow value of 5-bits only (i.e. 32). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 07:10:19 +00:00
Evan Cheng
e07715cfba Minor reorg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 05:25:29 +00:00
Evan Cheng
3850a6ae9d Replace isTwoAddress with operand constraint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 05:23:49 +00:00
Bruno Cardoso Lopes
e39493eb1b Use a default alignment for data and bss sections. 
Only pad when the section size > 0 and move the code that deals
with globals initializers to a place we know for sure the global
is initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 04:39:27 +00:00
Owen Anderson
606e9eb6e6 Guard the layout info object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 00:21:15 +00:00
Owen Anderson
61ffc0c7fd Guard the plugin loader. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-23 00:02:39 +00:00
Owen Anderson
af2e2b54b6 Add guards around timer groups, which can be shared. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 23:37:06 +00:00
Dan Gohman
91380b7239 Fix a bug in the trip-count computation with And/Or. If either of the 
sides is CouldNotCompute, the resulting exact count must be CouldNotCompute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 23:28:56 +00:00
Bob Wilson
5bafff36c7 Add support for ARM's Advanced SIMD (NEON) instruction set. 
This is still a work in progress but most of the NEON instruction set
is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 23:27:02 +00:00
Owen Anderson
5de83afcdc Guard the statistics table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73916 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 23:08:27 +00:00
Owen Anderson
521db56182 Guard the global annotation tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73913 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:44:15 +00:00
Owen Anderson
c226570bde Add locking around the external function lookup table for the interpreter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73912 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:30:56 +00:00
Owen Anderson
e7b6118a51 Remove unneeded #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:09:07 +00:00
Dan Gohman
469f3cdc13 Fix a few minor issues that were exposed by the removal of SCEVHandle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:08:45 +00:00
Bob Wilson
1c76d0ee5c Add explicit types for shift count constants. This is in preparation for 
another change that makes the types ambiguous (at least as far as tablegen
is concerned).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73909 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:08:29 +00:00
Dan Gohman
bd5ce52740 Fix llvm::ComputeNumSignBits to handle pointer types 
conservatively correctly, instead of aborting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 22:02:32 +00:00
Owen Anderson
753ad615f9 Remove the parent pointer from SCEV, since it did not end up being needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73907 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:57:23 +00:00
Owen Anderson
372b46cad9 SCEVHandle is no more! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73906 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:39:50 +00:00
Bob Wilson
9170ab6685 Use thumb2 for ARM architectures V6T2 and later. Fix a bug in checking 
for "thumb" and add a check for V6T2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73905 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:28:22 +00:00
Dan Gohman
d32f5bf22d Fix some typos that Duncan noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73903 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:10:22 +00:00
Bob Wilson
54fc124d72 For Darwin on ARMv6 and newer, make register r9 available for use as a 
caller-saved register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73901 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 21:01:46 +00:00
Dale Johannesen
08bc98e3cc Fix memcpy expansion so it won't generate invalid 
types for the target (I think).  This was breaking
the PPC32 calling sequence.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73900 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 20:59:07 +00:00
Evan Cheng
81909b7423 Fix another register coalescer crash: forgot to check if the instruction being updated has already been coalesced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 20:49:32 +00:00
Bruno Cardoso Lopes
c236a345c7 Use different functions to emit the string and symbol tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73895 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 19:29:56 +00:00
Bruno Cardoso Lopes
0d3193ef3c Add more methods to gather target specific elf stuff 
Support for .text relocations, implementing TargetELFWriter overloaded methods for x86/x86_64.
Use a map to track global values to their symbol table indexes
Code cleanup and small fixes



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73894 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 19:16:16 +00:00
Evan Cheng
8dcbbdd00e hasFP should return true if frame address is taken. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73893 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 18:38:48 +00:00
Owen Anderson
08367b6163 Banish global state from ScalarEvolution! SCEV uniquing is now done by tables attached to the ScalarEvolution pass. 
This also throws out the SCEV reference counting scheme, as the the SCEVs now have a lifetime controlled by the
ScalarEvolution pass.

Note that SCEVHandle is now a no-op, and will be remove in a future commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73892 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 18:25:46 +00:00
Bob Wilson
e64e3cf9ad Fix llvm-gcc build for armv6t2 and later architectures. The hasV6T2Ops 
predicate does not check if Thumb mode is enabled, and when in ARM mode
there are still some checks for constant-pool use that need to run.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73887 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 17:29:13 +00:00
Dan Gohman
60e9b0708a Make use of getUMinFromMismatchedTypes when computing backedge-taken 
counts for loops with multiple exits, replacing more conservative code
which only handled constants. This is derived from a patch by
Nick Lewycky.

This also fixes llc aborts in ClamAV and others, as
getUMinFromMismatchedTypes takes care of balancing the types before
working with them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 15:09:28 +00:00
Dan Gohman
c9759e80f4 Add a getUMinFromMismatchedTypes helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73883 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 15:03:27 +00:00
Dan Gohman
f9a9a9928c Factor out code for computing umin and smin for SCEV expressions into 
helper functions. Based on a patch by Nick Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 03:18:45 +00:00
Dan Gohman
a334aa7a10 Teach ScalarEvolution how to analyze loops with multiple exit 
blocks, and also exit blocks with multiple conditions (combined
with (bitwise) ands and ors). It's often infeasible to compute an
exact trip count in such cases, but a useful upper bound can often
be found.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 00:31:57 +00:00
Dan Gohman
743ab498d8 Delete an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73865 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 00:19:17 +00:00
Dan Gohman
03ad6982c4 Fix this code to correctly handle loops with multiple exits. Until 
now, this hasn't mattered, because ScalarEvolution hasn't been able
to compute trip counts for loops with multiple exits. But it will
soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-22 00:15:15 +00:00
Dan Gohman
5392dce881 Rename a variable for consistency with the ExitBlock vs ExitingBlock 
terminology that LoopInfo uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73863 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 23:48:38 +00:00
Dan Gohman
51f53b7f5a Fix ScalarEvolution's backedge-taken count computations to check for 
overflow when computing a integer division to round up.

Thanks to Nick Lewycky for noticing this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73862 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 23:46:38 +00:00
Chris Lattner
14ee48a5ba rename SourceMgr::PrintError to PrintMessage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73861 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 21:22:11 +00:00
Rafael Espindola
1c3329f707 Fix PR4185. 
Handle FpSET_ST0_80 being used when ST0 is still alive.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73850 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 12:02:51 +00:00
Chris Lattner
7ee5d5f97b move include searching logic from TGLexer to SourceMgr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73845 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 05:06:04 +00:00
Chris Lattner
8070ea3f06 Rename TGSourceMgr -> SourceMgr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73844 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 03:41:50 +00:00
Chris Lattner
1e3a8a4924 rename TGLoc -> SMLoc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73843 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 03:39:35 +00:00
Chris Lattner
099e198ae8 move TGSourceMgr class out of TableGen into libsupport. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73842 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 03:36:54 +00:00
Chris Lattner
e372333597 simplify closing paren and (rip) printing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73841 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 02:22:53 +00:00
Chris Lattner
4150c086d0 indentation fix 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73840 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 02:22:34 +00:00
Nick Lewycky
e47f59db44 Expand this test to handle more cases (remainder and shifts) of zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73839 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 01:56:41 +00:00
Chris Lattner
2f429e5eb6 remove #if 0 code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73837 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 01:48:49 +00:00
Chris Lattner
aecaa1f143 cosmetic changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73836 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 01:27:55 +00:00
Chris Lattner
1db6866147 implement PR4424: 0/x is always 0 for integer division. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73835 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-21 01:15:55 +00:00
Chris Lattner
5c0b16d0c4 change TLS_ADDR lowering to lower to a real mem operand, instead of matching as 
a global with that gets printed with the :mem modifier.  All operands to lea's 
should be handled with the lea32mem operand kind, and this allows the TLS stuff
to do this.  There are several better ways to do this, but I went for the minimal
change since I can't really test this (beyond make check).

This also makes the use of EBX explicit in the operand list in the 32-bit, 
instead of implicit in the instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73834 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 20:38:48 +00:00
Chris Lattner
8cb65a5092 remove dead code, the main codepath never has to deal 
with MBB's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73830 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 19:34:47 +00:00
Chris Lattner
7680e73341 eliminate the "call" operand modifier from the asm descriptions, modeling 
it as a pcrel immediate instead.  This gets pc-rel weirdness out of the
main printoperand codepath.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 19:34:09 +00:00
Chris Lattner
7f8217f64b fix edit-o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73824 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 08:13:12 +00:00
Chris Lattner
dc479f6ebf some comments and cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 07:59:10 +00:00
Chris Lattner
c12430644a implement support for lowering subregs when preparing to print 
LEA64_32r, eliminating a bunch of modifier logic stuff on addr modes.

Implement support for printing mbb labels as operands.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73817 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 07:03:18 +00:00
Evan Cheng
694f6c81e8 Fix PR4419: handle defs of partial uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73816 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 04:34:51 +00:00
Devang Patel
e9fe6c7729 Remove unused field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73815 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 01:07:54 +00:00
Devang Patel
66b4d3ba52 Initialize MMI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 01:00:07 +00:00
Chris Lattner
ad48be0ea3 hook up printMemReference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73811 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:50:32 +00:00
Chris Lattner
f38c03af2a Start implementing translation of MachineInstr to MCInst. Next 
step is to make tblgen generate something more appropriate for MCInst,
and generate calls to operand translation routines where needed.
This includes a bunch of #if 0 code which will slowly be refactored into
something sensible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73810 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:49:26 +00:00
Dan Gohman
763bad1a2b Generalize isLoopGuardedByCond's checking to consider two 
SCEVUnknowns with identical Instructions to be equal. This allows
it to analze cases such as the attached testcase, where the front-end
has cloned the loop controlling expression. Along with r73805, this
lets IndVarSimplify eliminate all the sign-extend casts in the
loop in the attached testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73807 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:35:32 +00:00
Owen Anderson
107a537db1 Workaround for an... interesting bug in Darwin's pthread_rwlock_init. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73806 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:32:27 +00:00
Dan Gohman
3964acc2f4 Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros 
in the loop backedge-taken count computation of the maximum
possible trip count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73805 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:32:22 +00:00
Owen Anderson
ac7087ecf0 Forgot this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73802 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:26:26 +00:00
Owen Anderson
04fb7c36a9 Revert r73790, and replace it with a significantly less ugly solution. Rather than trying to make the global reader-writer lock work, 
create separate recursive mutexes for each value map.  The recursive-ness fixes the double-acquiring issue, which having one per ValueMap
lets us continue to maintain some concurrency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73801 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-20 00:24:58 +00:00
Chris Lattner
d5fb790613 stub out some hacky code for wiring up the new asmprinter interfaces 
on X86.  Not useful yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73799 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:59:57 +00:00
Dan Gohman
224a19c490 Fix a typo in a comment that Frits von Bommel noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73796 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:41:37 +00:00
Dan Gohman
2c364ad4a6 Make GetMinTrailingZeros a member function of ScalarEvolution, 
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.

Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73794 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:29:04 +00:00
Dan Gohman
2781f30eac Re-apply r73718, now that the fix in r73787 is in, and add a 
hand-crafted testcase which demonstrates the bug that was exposed
in 254.gap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73793 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:23:27 +00:00
Devang Patel
5090f19f09 DwarfWriter is used to emit EH info also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73792 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:21:20 +00:00
Evan Cheng
ae69a2a12b Enable arm pre-allocation load / store multiple optimization pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73791 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:17:27 +00:00
Owen Anderson
430444b102 Fix a serious bug that would cause deadlock during abstract type refinement. The constant creation 
gets involved, and we end up trying to recursively acquire a writer lock.  The fix for this is slightly horrible,
and involves passing a boolean "locked" parameter around in Constants.cpp, but it's better than having locked and
unlocked versions of most of the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73790 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:16:19 +00:00
Dan Gohman
4d1c1efd80 Fix LSR's OptimizeSMax to ignore max operators with more than 2 operands, 
which it isn't prepared to handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73787 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 23:03:46 +00:00
Devang Patel
1e86a66b00 mv CodeGen/DebugLoc.h Support/DebugLoc.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73786 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 22:08:58 +00:00
Devang Patel
14a55d952c Move up dwarf writer initialization in common AsmPrinter class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73784 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 21:54:26 +00:00
Evan Cheng
73a76736fb Revert 73718. It's breaking 254.gap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73783 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 21:15:06 +00:00
Anton Korobeynikov
e494b9e0d7 Unbreak cyclic deps 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73781 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 19:36:55 +00:00
Owen Anderson
b9c2f58229 Fix bad paste-o in the MSVC atomics. 
Patch by Иван Сорокин.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73779 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 18:37:50 +00:00
Owen Anderson
1f0ba8c57b Forgot to remove some explicit locking when it became implicit in the ValueMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73778 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 18:34:09 +00:00
Dan Gohman
0c689c5e05 Make ScalarEvolution::print print getSCEVAtScope values for 
expressions, when interesting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73776 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:49:54 +00:00
Owen Anderson
8e1c17aa5a Move the memory fences out of the path for single-threaded mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73775 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:45:12 +00:00
Dan Gohman
958e292c7a Don't (unconditionally) use getSCEVAtScope to simplify the step 
expression in IVUsers, because in the case of a use of a non-linear
addrec outside of a loop, this causes the addrec to be evaluated as
a linear addrec.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73774 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:33:15 +00:00
Owen Anderson
ae60c0f78e Fix incorrect comment pointed out by Duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73773 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 17:20:50 +00:00
Chris Lattner
79c740ff47 make jump threading handle lexically identical compare instructions 
as if they were multiple uses of the same instruction.  This interacts
well with the existing loadpre that j-t does to open up many new jump
threads earlier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 16:27:56 +00:00
Chris Lattner
225503a5b5 fix the sparc codegen to not depend on the sparc asmprinter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 15:48:10 +00:00
Duncan Sands
852cd112ed Add support for AuroraUX. Patch by evocallaghan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73766 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 14:40:01 +00:00
Evan Cheng
b1019480b6 Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 07:06:07 +00:00
Eli Friedman
7e2242be71 Fix for PR2484: add an SSE1 pattern for a shuffle we normally prefer to 
handle with an SSE2 instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73760 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 07:00:55 +00:00
Evan Cheng
7a42b08be8 Should be using Bcc (average) latency to determine if-conversion threshold, not BL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73759 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 06:56:26 +00:00
Eli Friedman
2fb070bf5a Minor cleanup; fixes review comments for a previous patch. Sorry for 
taking so long to get to this!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73757 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 06:01:55 +00:00
Nick Lewycky
9683f18174 Teach jump threading to look at comparisons between phi nodes and non-constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73755 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:56:29 +00:00
Eli Friedman
aace4b1a2c Misc tweaks to Intel asm printing to make it more compatible with MASM. 
Patch by Benedict Gaster.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73753 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:48:38 +00:00
Chris Lattner
6a35b40250 Improve tail call elim to move loads above readonly calls 
when it allows forming a tail call.  Patch by Frits van
Bommel.  This implements PR4323.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73752 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:22:16 +00:00
Chris Lattner
849832c0fb part of PR4405: disable a contentious optimization for 
strcmp -> memcmp when the lengths of the strings are unknown.

Patch by Nick Lewycky!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73751 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 04:17:36 +00:00
Lang Hames
10382fb71d More VNInfo tweaking, plus a little progress on intra-block splitting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73750 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 02:17:53 +00:00
Evan Cheng
974fe5d691 Transfer dead markers when a ldrd is changed into a ldm or a pair of ldr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73749 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:59:04 +00:00
Evan Cheng
8557c2bcb8 Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73747 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:51:50 +00:00
Eli Friedman
6b7bb42c36 Mark a few Thumb instructions commutable; just happened to spot this 
while experimenting.  I'm reasonably sure this is correct, but please 
tell me if these instructions have some strange property which makes this
change unsafe.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73746 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 01:43:08 +00:00
Chris Lattner
fadc83c699 add a file I missed, this goes with r73743 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 00:47:59 +00:00
Chris Lattner
475370b036 Add some scaffolding for a new experimental asmprinter 
implementation.  The idea is that we want asmprinting to
work by converting MachineInstrs into a new MCInst class,
then the per-instruction asmprinter works on MCInst.  MCInst
and the new asmprinters will not depend on most of the 
llvm code generators.  This allows building diassemblers
that don't link in the whole llvm code generator.  This is
step #1 of many.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73743 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 00:47:33 +00:00
Chris Lattner
4e0f25b603 merge the common darwin settings from the X86/PPC/ARM targets 
into DarwinTargetAsmInfo.cpp.  The remaining differences should
be evaluated.  It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-19 00:08:39 +00:00
Chris Lattner
a93ca92379 move mangler quote handling from asm printers to TargetAsmInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 23:41:35 +00:00
Chris Lattner
7e816dc175 minor cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73737 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 23:33:13 +00:00
Chris Lattner
b839c3f577 simplify macro debug info directive handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73736 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 23:31:37 +00:00
Evan Cheng
cd828618b8 Remove UseThumbBacktraces. Just check if subtarget is darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73734 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 23:14:30 +00:00
Owen Anderson
4a7893b452 Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73728 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 22:25:12 +00:00
Lang Hames
d21c31610c Improved PHI def marking, replaced some gotos with breaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 22:01:47 +00:00
Owen Anderson
e454067f97 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73725 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 21:35:56 +00:00
Owen Anderson
b2c0fe4d93 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73723 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:56:48 +00:00
Owen Anderson
3c8031df6d Add a SmartScopedLock, and use it to simplify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73722 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:51:00 +00:00
Owen Anderson
f0f220a07e Simplify with SmartRWMutex. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73721 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:44:31 +00:00
Evan Cheng
b13bafe5c1 On Darwin, ams printer should output a second label before a jump table so the linker knows it's a new atom. But this is only needed if the jump table is put in a separate section from the function body. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73720 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:37:15 +00:00
Owen Anderson
bcf9737f1e Simplify by using no-op-when-not-multithreaded locks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73719 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:36:21 +00:00
Dan Gohman
4658c9b4ea Generalize LSR's OptimizeSMax to handle unsigned max tests as well 
as signed max tests. Along with r73717, this helps CodeGen avoid
emitting code for a maximum operation for this class of loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73718 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:23:18 +00:00
Dan Gohman
30fb512e95 Recognize n != 0 ? n : 1 as umax(n, 1). Previously only ULT/UGT/ULE/UGE 
comparisons were recognized for umax, but instcombine canonicalizes
unsigned comparisons with zero to this simpler form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73717 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:21:07 +00:00
Owen Anderson
6cf69cfdee Simplify using mutexes that become no-ops when not in multithreaded mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73716 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:15:26 +00:00
Anton Korobeynikov
9547cdfa35 Revert IRBuilder CC propagation. Fix SimplifyLibCalls instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73715 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 20:05:31 +00:00
Owen Anderson
ee6aefcaa3 Simplify a lot of code by using a R/W mutex that becomes a no-op when multithreading is disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73714 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 19:10:19 +00:00
Owen Anderson
0e4d606684 Use SmartMutex to simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73712 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 18:36:34 +00:00
Owen Anderson
b65e9ed106 Give RWMutex the SmartRWMutex treatment too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73710 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 18:26:15 +00:00
Owen Anderson
b849a4dd4b Insert a SmartMutex templated class into the class hierarchy, which takes a template parameter specifying whether this mutex 
should become a no-op when not running in multithreaded mode.  Make sys::Mutex a typedef of SmartMutex<false>, to preserve source compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73709 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 17:53:17 +00:00
Ted Kremenek
e53118ea32 Update CMake files to account for new location of Threading.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73708 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 17:47:09 +00:00
Owen Anderson
e3cd5ca7e7 Move Threading.[h|cpp] from Support to System. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:54:52 +00:00
Dan Gohman
4e8a98519e Remove the code from IVUsers that attempted to handle 
casted induction variables in cases where the cast
isn't foldable. It ended up being a pessimization in
many cases. This could be fixed, but it would require
a bunch of complicated code in IVUsers' clients. The
advantages of this approach aren't visible enough to
justify it at this time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:54:06 +00:00
Dan Gohman
fd3daa74c2 Generalize the zext(trunc(t) & C) instcombine to work even with 
C is not a low-bits mask, and add a similar instcombine for
zext((trunc(t) & C) ^ C).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73705 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:30:21 +00:00
Dan Gohman
6864db6fac Update a comment to reflect the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73704 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:24:47 +00:00
Owen Anderson
1d36e4fa7c Fix the double checked locking in this file too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73703 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:17:42 +00:00
Owen Anderson
3cfc62aa08 As pointed out by Duncan, I accidentally dropped the first MemoryFence of the 
double-checked locking pattern here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73701 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 16:08:27 +00:00
Owen Anderson
6904858ab3 Fix build when disable thread support. 
Patch by Howard Su.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73680 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 04:44:46 +00:00
Nick Lewycky
b4b0fc28bc Add braces to clarify if/else structure and remove warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73673 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 03:01:42 +00:00
Evan Cheng
f9f1da17f8 - Update register allocation hint after coalescing. This is done by the target since the hint is target dependent. This is important for ARM register pair hints. 
- Register allocator should resolve the second part of the hint (register number) before passing it to the target since it knows virtual register to physical register mapping.
- More fixes to get ARM load / store double word working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73671 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 02:04:01 +00:00
Dale Johannesen
063989455d It looks like nobody is working on PR 4158, so I'm 
adding a check to catch this case at compile time
instead of quietly generating incorrect code.
That will at least let us identify CBE failures
that are not due to this problem.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 01:07:23 +00:00
Dan Gohman
9e7d9883b0 Fix trailing whitespace from ScalarEvolution::print. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73666 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:37:45 +00:00
Bob Wilson
ff6de36558 ARM unified syntax is not specific to ELF; use it for Darwin, too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73665 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:36:17 +00:00
Dan Gohman
820528331f Teach ScalarEvolution how to recognize another xor(and(x, C), C) case. 
If C is a single bit and the and gets analyzed as a truncate and
zero-extend, the xor can be represnted as an add.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73664 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-18 00:00:20 +00:00