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32647 Commits

Author SHA1 Message Date
Devang Patel
4d7a2061f1 Check for null MDNode element while printing comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83172 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:26:51 +00:00
Bob Wilson
bc9506f5ee Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83171 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:26:13 +00:00
Bob Wilson
b6e4742da7 The AsmPrinter base class contains a DwarfWriter member, so there's no need 
for derived AsmPrinters to add another one.  In some cases, fixing this
removes the need to override the doInitialization method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83170 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:24:45 +00:00
Jeffrey Yasskin
1fb613c43d Assert that ConstantArrays are created with correctly-typed elements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83168 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 21:08:08 +00:00
Dan Gohman
5184635eda Fix this code so that it doesn't try to iterate through a std::vector 
while calling changeImmediateDominator, which removes elements from the
vector. This fixes PR5097.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83166 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:54:16 +00:00
Reid Kleckner
3a90c9b8ed Silence comparison always false warning in -Asserts mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83164 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:43:07 +00:00
Jim Grosbach
32030fe021 Add additional assert() to verify no extraneous use of a scavenged register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:35:36 +00:00
Devang Patel
2d5988d9ba Print tag name for MDNodes that are used to encode debug info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83160 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:16:54 +00:00
Reid Kleckner
c277ab08a2 Fix integer overflow in instruction scheduling. This can happen if we have 
basic blocks that are so long that their size overflows a short.

Also assert that overflow does not happen in the future, as requested by Evan.

This fixes PR4401.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 20:15:38 +00:00
Jim Grosbach
460c482ed3 Clarify comment phrasing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83148 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 15:23:38 +00:00
Evan Cheng
792e1f6df9 Add a option which would move ld/st multiple pass before post-alloc scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 08:53:01 +00:00
Evan Cheng
629adde699 Add a target hook to add pre- post-regalloc scheduling passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83144 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 08:49:50 +00:00
Nick Lewycky
483041e9ea Fix compile error as debug interface changed. 
By the way, this code is buggy. You can't keep a map<MDNode *, something>
because the MDNode may be destroyed and reused for something else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83141 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 04:50:26 +00:00
Jim Grosbach
366e021fb2 replace TRI->isVirtualRegister() with TargetRegisterInfo::isVirtualRegister() 
per customary usage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83137 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:47:59 +00:00
Jim Grosbach
d1a5ca6cb1 When checking whether we need to reserve a register for the scavenger, 
the size of the saved frame pointer needs to be taken into account.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83136 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:43:29 +00:00
Jim Grosbach
c732adf3a1 Add "isBarrier = 1" to return instructions. 
Patch by Sylvere Teissier.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83135 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 01:35:11 +00:00
Jim Grosbach
0a13e566ab fix compiler warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83132 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:37:40 +00:00
Bob Wilson
0fb34683b9 For Darwin, emit all the text section directives together before the dwarf 
section directives.  This causes the assembler to put the text sections at
the beginning of the object file, which helps work around a limitation of the
Darwin ARM relocations.  Radar 7255355.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83127 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:23:42 +00:00
Devang Patel
fdc826f6e8 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83123 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:14:40 +00:00
David Goodwin
0dad89fa94 Remove -post-RA-schedule flag and add a TargetSubtarget method to enable post-register-allocation scheduling. By default it is off. For ARM, enable/disable with -mattr=+/-postrasched. Enable by default for cortex-a8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:10:16 +00:00
Mike Stump
3e4c9bdb67 Add a way for a frontend to generate more complex dwarf location 
information.  This allows arbitrary code involving DW_OP_plus_uconst
and DW_OP_deref.  The scheme allows for easy extention to include,
any, or all of the DW_OP_ opcodes.  I thought about just exposing all
of them, but, wasn't sure if people wanted the dwarf opcodes exposed
in the api.  Is that a layering violation?

With this scheme, the entire existing block scheme used by llvm-gcc
can be switched over to the new scheme.  I think that would be
cleaner, as then the compiler specific bits are not present in llvm
proper.  Before the old code can be yanked however, similar code in
clang would have to be removed.

Next up, more testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83120 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-30 00:08:22 +00:00
Jim Grosbach
17487ba60d minor cleanup and add clarifying comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83117 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 23:17:20 +00:00
Devang Patel
11716d766b Lookup handler name only when assertions are enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83114 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 22:05:52 +00:00
Devang Patel
74da40a96f Add removeMD(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83107 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:42:25 +00:00
Devang Patel
58a230a491 Only one custom meadata of each kind can be attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:30:57 +00:00
Jim Grosbach
a9a9c95f67 Additional check for regno==0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83103 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:11:10 +00:00
Devang Patel
1d957e4d0d Use assertion instead of early exit to catch malformed custom metadata store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83102 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 20:01:19 +00:00
Devang Patel
9dddf97480 Remove unnecessary cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83100 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 19:56:13 +00:00
Devang Patel
5ccdd10b1a Remove std::string uses from DebugInfo interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 18:40:58 +00:00
Jim Grosbach
9a0b6e6ded Simplify the tracking of virtual frame index registers. Ranges cannot overlap, 
so a simple "current register" will suffice. Also add some additional
sanity-checking assertions to make sure things are as we expect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83081 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 18:23:15 +00:00
Jim Grosbach
9ab2238df9 Moving register scavenging to a post pass results in virtual registers in 
the instruction we're scavenging for. The scavenger needs to know to avoid
them when analyzing register usage.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 17:24:37 +00:00
Evan Cheng
fa1be5d991 Fix PR4687. Pre ARMv5te does not support ldrd / strd. Patch by John Tytgat. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 07:07:30 +00:00
Devang Patel
0475c9170e Parse custom metadata attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83033 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-29 00:01:14 +00:00
Jim Grosbach
ec9eef4a15 Adjust processFunctionBeforeCalleeSavedScan() to correctly reserve a stack 
slot for the register scavenger when compiling Thumb1 functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83023 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 22:08:06 +00:00
Dan Gohman
d0c5a292aa Add C API calls for building FNeg operations. Patch by KS Sreeram! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:51:41 +00:00
Devang Patel
e30e678865 s/class Metadata/class MetadataContext/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:41:20 +00:00
Devang Patel
a2148402ce Do not use global typedef for MDKindID. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:14:55 +00:00
Dan Gohman
f3f1be6f06 When extending the operands of an addrec, iterate through all 
the operands, rather than trying to partition them into a start
and a step. This handles non-affine add recurrences correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 21:01:47 +00:00
Devang Patel
18f0c263e6 Do not hardcode metadata names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83010 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:56:00 +00:00
Evan Cheng
fd847118ed Fix Thumb2 IT block pass bug. t2MOVi32imm may not be the start of a IT block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:47:15 +00:00
Jakob Stoklund Olesen
544df3651e Use KILL instead of IMPLICIT_DEF in LowerSubregs pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:32:46 +00:00
Jakob Stoklund Olesen
26207e5bf1 Introduce the TargetInstrInfo::KILL machine instruction and get rid of the 
unused DECLARE instruction.

KILL is not yet used anywhere, it will replace TargetInstrInfo::IMPLICIT_DEF
in the places where IMPLICIT_DEF is just used to alter liveness of physical
registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:32:26 +00:00
Dan Gohman
23aefe5e92 Create a README.txt for lib/Analysis, and add an entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83001 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:38:53 +00:00
Devang Patel
3168b79c1c Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82999 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 18:31:56 +00:00
Dan Gohman
937d2d8624 Use VerifySchedule instead of doing the work manually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 16:09:41 +00:00
Dan Gohman
322b95cd5f Fix this debug output to handle the case where the loop has been deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82994 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:40:01 +00:00
Dan Gohman
6d594a9d76 Include the name of the loop header in debug messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82993 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 15:07:18 +00:00
Dan Gohman
2d5dfd94e5 Remove a redundant #ifndef and add an assertion string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:38:19 +00:00
Dan Gohman
d84db11333 Convert LoopSimplify and LoopExtractor from FunctionPass to LoopPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:37:51 +00:00
Bob Wilson
522ce97532 Pass the optimization level when constructing the ARM instruction selector. 
Otherwise, it is always set to "default", which prevents debug info from
even being generated during isel.  Radar 7250345.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 14:30:20 +00:00
Evan Cheng
5adb66a646 Make ARM and Thumb2 32-bit immediate materialization into a single 32-bit pseudo 
instruction. This makes it re-materializable.

Thumb2 will split it back out into two instructions so IT pass will generate the
right mask. Also, this expose opportunies to optimize the movw to a 16-bit move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 09:14:39 +00:00
Anton Korobeynikov
b0d8d78138 Fix thinko in my recent movt commit: it's not safe to remat movt, since it has input reg argument. 
Disable rematting of it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82975 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 07:26:46 +00:00
Chris Lattner
3ddfb21306 The select instruction is not neccesarily in the same block as the 
phi nodes.  Make sure to phi translate from the right block. 

This fixes a llvm-building-llvm failure on GVN-PRE.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 06:49:44 +00:00
Evan Cheng
0e6b590b91 Coalescer should not delete extract_subreg, insert_subreg, and subreg_to_reg of 
physical registers. This is especially critical for the later two since they
start the live interval of a super-register. e.g.
%DO<def> = INSERT_SUBREG %D0<undef>, %S0<kill>, 1
If this instruction is eliminated, the register scavenger will not be happy as
D0 is not defined previously.
This fixes PR5055.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82968 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 05:28:43 +00:00
Dan Gohman
a9245d63f6 Remove temporary debugging hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:44:15 +00:00
Dan Gohman
9450b0e1a6 Move the dominator verification code out of special code embedded within 
the PassManager code into a regular verifyAnalysis method.

Also, reorganize loop verification. Make the LoopPass infrastructure
call verifyLoop as needed instead of having LoopInfo::verifyAnalysis
check every loop in the function after each looop pass. Add a new
command-line argument, -verify-loop-info, to enable the expensive
full checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82952 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:27:48 +00:00
Dan Gohman
f3f0c89f5f Move this assert to check the condition as soon as it is known. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82951 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:10:28 +00:00
Dan Gohman
5c12adaa8b Extend the StartPassTimer and StopPassTimer functions so that the 
code that stops the timer doesn't have to search to find the timer
object before it stops the timer. This avoids a lock acquisition
and a few other things done with the timer running.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82949 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 00:07:05 +00:00
Anton Korobeynikov
6a2fa325c1 Use movt/movw pair to materialize 32 bit constants on ARMv6T2+. 
This should be better than single load from constpool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82948 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:58 +00:00
Dan Gohman
1edaef62a4 Fix an old copy+pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82947 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:52:07 +00:00
Dan Gohman
3069b3193d Extract the code for inserting a loop into the loop queue into 
a separate function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82946 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:49:43 +00:00
Dan Gohman
9702901a1e When a loop is deleted, immediately release all of the active 
LoopPasses for that loop. This avoids trouble with the PassManager
trying to call verifyAnalysis on them, and frees up some memory
sooner rather than later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82945 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:43:07 +00:00
Dan Gohman
27a8fb8a54 Extract the code for releasing a pass into a separate function, and 
tidy it up a little.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82944 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:38:27 +00:00
Nick Lewycky
c261df9fab Remove the "metadata*" type and simplify the code it complicated. This was only 
used to support GlobalVariables storing MDNodes, back when they were derived
from Constant before the introduction of NamedMDNode, but never removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82943 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:27:42 +00:00
Dan Gohman
ae03af2663 LBRX no longer has an explicit SrcValueSDNode operand, so the type 
operand is now at index 2, rather than 3. This fixes the
"Invalid child # of SDNode!" failures on PowerPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82942 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 23:17:47 +00:00
Chris Lattner
9b1de95593 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82936 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:46:50 +00:00
Chris Lattner
42ebefae8e The bitcast case is not needed here: instcombine turns icmp(bitcast(x), null) -> icmp(x, null) already. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82935 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:42:46 +00:00
Chris Lattner
06e4052699 calls are already unmovable, malloc doesn't need a special case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:36:19 +00:00
Chris Lattner
32c0d2255f calls to external functions are already marked overdefined, special casing 
malloc isn't needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:35:11 +00:00
Chris Lattner
4412d04876 calls are already handled, malloc doesn't need a special case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:33:46 +00:00
Nick Lewycky
ae05e7d945 Round out the API for the new optimization flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82930 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:33:04 +00:00
Chris Lattner
68b1bbbc55 calls are rejected above, no need to special case malloc here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:31:39 +00:00
Chris Lattner
439044f4f9 remove special handling of bitcast(malloc), it will be handled 
when the loop inspects the bitcast operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82928 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:29:28 +00:00
Chris Lattner
2a9325ff2f unlike the malloc instruction, "malloc" calls do not claim to be readonly, just nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 21:23:38 +00:00
Chris Lattner
213cd61fa7 allow pushing icmps through phis with multiple uses and across critical edges. 
These are important to push up to encourage jump threading.  This shrinks 176.gcc a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82923 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 20:46:36 +00:00
Chris Lattner
c6df8f4d5f Enhance the previous fix for PR4895 to allow more values than just 
simple constants for the true/false value of the select.  We now
do phi translation etc.  This really fixes PR4895 :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 20:18:49 +00:00
Chris Lattner
5d1704ddbf implement PR4895, by making FoldOpIntoPhi handle select conditions 
that are phi nodes.  Also tighten up FoldOpIntoPhi to treat constantexpr
operands to phis just like other variables, avoiding moving constantexpr
computations around.

Patch by Daniel Dunbar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82913 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 19:57:57 +00:00
Tilmann Scheller
8ff95de83c Use explicit structs instead of std::pair to map callee saved regs to spill slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82909 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:58:47 +00:00
Dan Gohman
630c84a685 Delete a bogus comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:50:44 +00:00
Dan Gohman
83d577490b Fix SCEVExpander's canonical addrec expansion code to work on loops that 
aren't in canonical loop-simplify form, since it doesn't itself depend
on LoopSimplify. This means handling loops without preheaders and loops
with multiple backedges.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82905 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 17:46:40 +00:00
Dan Gohman
f37cfed791 Grab an LLVM Context from an instruction that exists rather than one 
that is deleted in some situations. This fixes a use-after-free.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82903 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 16:10:30 +00:00
Dan Gohman
e6fe67b2fb Tell ScalarEvolution to forget everything it knows about a loop before 
rotating the loop, since loop rotation is a very significant change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82901 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:37:03 +00:00
Dan Gohman
6afea253e0 Micro-optimize DerivedType::dropAllTypeUses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82900 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:32:21 +00:00
Dan Gohman
00cb67359f Instead of testing whether an instruction dominates the loop preheader, 
test whether it properly dominates the loop header. This is equivalent
when the loop has a preheader, and has the advantage of working when
the loop doesn't have a preheader. Since IVUsers doesn't Require
LoopSimplify, the loop isn't guaranteed to have a preheader.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82899 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:30:00 +00:00
Dan Gohman
6e70e31810 Add a properlyDominates member function to ScalarEvolution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82898 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:26:03 +00:00
Dan Gohman
59faf04a5d Remove a redundant #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82897 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 15:21:52 +00:00
Torok Edwin
d7830d595d Avoid using mutex locks if not in multithreaded mode by using a SmartScopedMutex 
in RegisterStatistic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82896 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 11:08:03 +00:00
Evan Cheng
e298ab26b1 Enable pre-regalloc load / store multiple pass for Thumb2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82893 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 09:46:04 +00:00
Nick Lewycky
513869453b Remove dead code from this function and optimize. Update its corresponding 
LangRef entry too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82890 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 07:55:32 +00:00
Nick Lewycky
6776064d19 Instruction::clone does not need to take an LLVMContext&. Remove that and 
update all the callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82889 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-27 07:38:41 +00:00
Chris Lattner
81f46d9ce1 remove support for "NoSub" from regex. It seems like a minor optimization 
and makes the API more annoying.  Add a Regex::getNumMatches() method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82877 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 21:27:04 +00:00
Dan Gohman
76926b6789 Fix SimplifyLibCalls to transfer attributes from callees rather than 
calls, since direct calls don't always reflect the attributes of their
callees.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 18:10:13 +00:00
Dan Gohman
c70c37794f Fix a case where ScalarEvolution was expanding pointer arithmetic 
to inttoptr/ptrtoint unnecessarily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 16:11:57 +00:00
Duncan Sands
3548ea8e90 For the NSWSub support in the builder to actually be useable, 
there need to be corresponding changes to the constant folders,
done in this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82862 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 15:35:35 +00:00
Dan Gohman
11eab02b77 Convert comparisons like (x == infinity) to (x >= infinity) on targets 
where FCMP_OEQ is not legal and FCMP_OGE is, such as x86. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82861 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 15:24:17 +00:00
Evan Cheng
72c158f908 Really remove this option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82838 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 02:49:49 +00:00
Evan Cheng
8981572662 Remove a couple of unused command line options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82837 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 02:45:45 +00:00
Evan Cheng
8f05c1004a Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82836 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 02:43:36 +00:00
Dan Gohman
45094e34bc Don't hoist or sink instructions with physreg uses if the physreg is 
allocatable. Even if it doesn't appear to have any defs, it may latter
on after register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82834 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-26 02:34:00 +00:00
Dan Gohman
a8fb336c2e Unbreak MachineLICM for instructions that reference RIP on x86-64 too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82825 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 23:58:45 +00:00