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23945 Commits

Author SHA1 Message Date
Duncan Sands
1512642973 Pacify gcc-4.3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53227 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 09:33:14 +00:00
Duncan Sands
2e033f31dc Add some convenience methods for manipulating 
call attributes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53223 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 08:38:44 +00:00
Chris Lattner
155a490258 Fix three bugs: 
1) evaluate [v]fcmp true/false with undefs to true or false instead
   of undef.
2) fix vector comparisons with undef to return a vector result instead 
   of i1
3) fix vector comparisons with evaluatable results to return vector
   true/false instead of i1 true/false (PR2529)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53220 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 05:46:34 +00:00
Nick Lewycky
6177fd4fce Expand SCEVUDiv of power of 2 to a lshr instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53217 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 05:05:37 +00:00
Evan Cheng
77c8f7674d Avoid unnecessary string construction during asm printing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53215 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-08 00:55:58 +00:00
Dan Gohman
8e5f2c6f65 Pool-allocation for MachineInstrs, MachineBasicBlocks, and 
MachineMemOperands. The pools are owned by MachineFunctions.

This drastically reduces the number of calls to malloc/free made
during the "Emit" phase of scheduling, as well as later phases
in CodeGen. Combined with other changes, this speeds up the
"instruction selection" phase of CodeGen by 10% in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53212 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 23:14:23 +00:00
Dan Gohman
0e5f1306b0 Pool-allocation for SDNodes. The pool is allocated once for each function, 
and reused across SelectionDAGs.

This drastically reduces the number of calls to malloc/free made during
instruction selection, and improves memory locality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53211 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 23:02:41 +00:00
Dan Gohman
e14d81deeb Add some basic Pool-allocation infrastructure. This adds a Recycler class, 
for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53210 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 22:58:06 +00:00
Evan Cheng
19d6d424aa Clean up PPC register specification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53209 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 22:22:07 +00:00
Evan Cheng
ae270f66aa ATT asm printer just print register AsmName's instead of calling tolower on each charater of Name. This speeds it up by 10%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53208 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 22:21:06 +00:00
Evan Cheng
b7c3e867a5 TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53207 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 22:19:41 +00:00
Bill Wendling
4925567f85 Use the canonical way to get an empty structure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53206 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 21:41:57 +00:00
Bill Wendling
667a68b96a Use StringMap for greater justice! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53202 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:59:31 +00:00
Dan Gohman
0fe9c6e7ba Fix SDNode::MorphNodeTo (a function used by by SelectNodeTo) to 
properly track dead nodes that are on the original SDNode's operand
list but not the new one, and have no other uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53201 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:57:48 +00:00
Dan Gohman
ce42e404a2 Move MachineMemOperand's constructor out of line, to avoid a 
#include dependency on Support/MathExtras.h in the header file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53200 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:32:02 +00:00
Dan Gohman
2d97918ce9 Simplify this use of BuildMI. This is also in preparation for 
pool-allocating MachineInstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53198 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:09:12 +00:00
Dan Gohman
fd3ff032b8 Use of operator* is redundant and confusing here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53197 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:08:05 +00:00
Dan Gohman
4542611bb9 Minor const-correctness fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53196 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 20:06:06 +00:00
Dan Gohman
03bafaf802 Assert that all MachineInstrs update PhysRegUseDefLists in 
their cleanup code. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53194 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 19:55:35 +00:00
Evan Cheng
1ce75dcbbc Fix two serious LSR bugs. 
1. LSR runOnLoop is always returning false regardless if any transformation is made.
2. AddUsersIfInteresting can create new instructions that are added to DeadInsts. But there is a later early exit which prevents them from being freed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53193 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 19:51:32 +00:00
Bruno Cardoso Lopes
85e9212fcd fixed 32-bit fp_to_sint pattern 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53192 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 19:11:24 +00:00
Dan Gohman
6d9cdd5617 Remove most of the uses of SDOperandPtr, usually replacing it with a 
simple const SDOperand*, which is what's usually needed.

For AddNodeIDOperands, which is small, just duplicate the function to
accept an SDUse*.

For SelectionDAG::getNode - Add an overload that accepts SDUse* that
copies the operands into a temporary SDOperand array, but also has
special-case checks for 0 through 3 operands to avoid the copy in
the common cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53183 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 18:26:29 +00:00
Dan Gohman
1002c02034 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53179 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 18:00:37 +00:00
Dan Gohman
eccfb6a165 Use empty() instead of size(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53178 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 17:52:43 +00:00
Dan Gohman
6b345ee9b2 Make DenseMap's insert return a pair, to more closely resemble std::map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53177 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 17:46:23 +00:00
Evan Cheng
21cacc4de8 LegalizeSetCCOperands should legalize the result of ExpandLibCall. Patch by Richard Osborne. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53169 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 07:18:09 +00:00
Nick Lewycky
01eaf803ca Handle 'lshr' instruction with SCEVUDiv object. 
Comment the xor %x, -1 case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53167 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 06:15:49 +00:00
Bill Wendling
8870ce951d Prevent option name conflict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53166 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 05:42:27 +00:00
Duncan Sands
990f032907 LegalizeTypes soft-float support for stores of a 
float value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53165 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-07 00:08:12 +00:00
Anton Korobeynikov
80585f1daa Add convenient helper for checking whether global is weak in linker sense 
having weak or linkonce or common or extweak LLVM linkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53158 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 23:48:30 +00:00
Anton Korobeynikov
f88bc65932 Override weak stuff during linking of aliases. This fixes PR2463. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53156 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 23:33:22 +00:00
Anton Korobeynikov
194c2cef8a Properly link alias and function decls. This fixes PR2146 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53154 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 23:03:21 +00:00
Nick Lewycky
b8cd6a49b5 Fix missed optimization opportunity when analyzing cast of mul and select. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53151 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 21:19:34 +00:00
Mon P Wang
364d73ddab Fixed generating incorrect aligned stores that I backout of r53031 
that fixed problems in EmitStackConvert where the source and target type
have different alignment by creating a stack slot with the max
alignment of source and target type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53150 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 20:40:31 +00:00
Bruno Cardoso Lopes
225ca9cdd7 Several changes to Mips backend, experimental fp support being the most 
important.
- Cleanup in the Subtarget info with addition of new features, not all support
  yet, but they allow the future inclusion of features easier. Among new features,
  we have : Arch family info (mips1, mips2, ...), ABI info (o32, eabi), 64-bit
  integer
  and float registers, allegrex vector FPU (VFPU), single float only support.
- TargetMachine now detects allegrex core.
- Added allegrex (Mips32r2) sext_inreg instructions.
- *Added Float Point Instructions*, handling single float only, and
  aliased accesses for 32-bit FPUs.
- Some cleanup in FP instruction formats and FP register classes.
- Calling conventions improved to support mips 32-bit EABI.
- Added Asm Printer support for fp cond codes.
- Added support for sret copy to a return register.
- EABI support added into LowerCALL and FORMAL_ARGS.
- MipsFunctionInfo now keeps a virtual register per function to track the
  sret on function entry until function ret.
- MipsInstrInfo FP support into methods (isMoveInstr, isLoadFromStackSlot, ...),
  FP cond codes mapping and initial FP Branch Analysis.
- Two new Mips SDNode to handle fp branch and compare instructions : FPBrcond,
  FPCmp
- MipsTargetLowering : handling different FP classes, Allegrex support, sret
  return copy, no homing location within EABI, non 32-bit stack objects
  arguments, and asm constraint for float.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53146 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-05 19:05:21 +00:00
Duncan Sands
126d90770b Rather than having a different custom legalization 
hook for each way in which a result type can be
legalized (promotion, expansion, softening etc),
just use one: ReplaceNodeResults, which returns
a node with exactly the same result types as the
node passed to it, but presumably with a bunch of
custom code behind the scenes.  No change if the
new LegalizeTypes infrastructure is not turned on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53137 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-04 11:47:58 +00:00
Duncan Sands
ececf99c07 Linux also does not require exception handling 
moves in order to get correct debug info.  Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53134 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-04 09:55:48 +00:00
Bill Wendling
c04f46567c Don't return std::vector by value, but pass it in by reference to be filled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53123 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 23:13:02 +00:00
Bill Wendling
10fff6078a Revert my previous check-in that split up MachineModuleInfo. It turns out to 
slow the compiler down at -O0 some 30% or more. Ooops.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53120 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 22:53:42 +00:00
Evan Cheng
a122f2f51e Backed out 53031. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53110 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 18:20:14 +00:00
Evan Cheng
cb2627395d Back out 53091 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 18:11:29 +00:00
Owen Anderson
0ae33ef202 Use information already present in the ValueTable to fast-fail when we know there won't be a value number match. This speeds up GVN on a case where there are very few redundancies by ~25%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53108 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:44:33 +00:00
Devang Patel
77a01136ff Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream. 
Right now, dom info is recaluclated in the end if the loop is switched.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:37:52 +00:00
Owen Anderson
9da02b844f Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53104 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:21:41 +00:00
Evan Cheng
9f1c8317a4 - Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc. 
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 09:09:37 +00:00
Matthijs Kooijman
10b9de62ff Add newline at the end of Constants.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:46:41 +00:00
Anton Korobeynikov
f550f472ee llvm-gcc sometimes marks external declarations hidden, because intializers are 
processed separately. Honour such situation and emit PIC relocations properly
in such case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53091 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:43:14 +00:00
Bill Wendling
38976dc394 Remove unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:10:03 +00:00
Devang Patel
98260a474c Preserve dom info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:04:22 +00:00
Devang Patel
70c09c54b1 Keep track of inherited analysis (e.g. dominator tree). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:02:30 +00:00
Devang Patel
f31b3bbd10 Remove extra FIXME 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53087 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 06:50:04 +00:00
Devang Patel
4be7d294f8 Reconstruct dom info, if loop is unswitched. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 06:48:21 +00:00
Devang Patel
b76247b8b1 LoopUnswitch does not preserve dominator info in all cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 05:55:03 +00:00
Dan Gohman
2ebc11ac6d Reapply r52988, "Simplify addRegisterKilled and addRegisterDead." The 
254.gap failure was not due to this mod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 01:18:51 +00:00
Dan Gohman
8de552d6f3 Use operator new instead of new char[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:53:09 +00:00
Dan Gohman
9b44c1f2a0 Avoid unnecessarily copying APInt objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:52:03 +00:00
Dan Gohman
ce3c413e07 Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53064 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:51:05 +00:00
Evan Cheng
5b9f60bc22 Use std::replace instead of std::find and push_back. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53063 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:28:27 +00:00
Devang Patel
825cb98d9a Undo previous patch. It is not that simple to fix dom info here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:08:13 +00:00
Evan Cheng
be04dc1413 - Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers. 
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:07:19 +00:00
Evan Cheng
457b88fb95 commuteInstruction should preserve dead markers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53060 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:04:51 +00:00
Owen Anderson
f660c171c8 Make LiveVariables even more optional, by making it optional in the call to TargetInstrInfo::convertToThreeAddressInstruction 
Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 23:41:07 +00:00
Dan Gohman
cd920d9ecf Replace a few uses of SelectionDAG::getTargetNode with 
SelectionDAG::SelectNodeTo in the instruction selector. This
updates existing nodes in place instead of creating new ones.

Go back to selecting ISD::DBG_LABEL nodes into
TargetInstrInfo::DBG_LABEL nodes instead of leaving them
unselected, now that SelectNodeTo allows us to update them
in place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53057 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 23:23:19 +00:00
Devang Patel
501e763dfe Preserve dom info while simplifing loop after the unswitch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53052 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 22:58:54 +00:00
Dan Gohman
8b69135f05 Revert r52988. It broke 254.gap on x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 22:12:55 +00:00
Owen Anderson
802af11460 TwoAddressInstructionPass doesn't really require LiveVariables, it just needs to update it if it's already around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 21:28:58 +00:00
Owen Anderson
ea6462bfd0 Use df_ext_iterator to capture the reachable set without allocating an extra set. 
Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53044 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:41:09 +00:00
Owen Anderson
cb29a4f66a Avoid a redundant call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53040 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:15:31 +00:00
Owen Anderson
77d76b7ef7 Add support to ADCE for pruning unreachable blocks. This addresses the final 
part of PR2509.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53038 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:05:19 +00:00
Duncan Sands
4bdcb61af3 Add a new getMergeValues method that does not need 
to be passed the list of value types, and use this
where appropriate.  Inappropriate places are where
the value type list is already known and may be
long, in which case the existing method is more
efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:40:58 +00:00
Owen Anderson
2c04b0da2b Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSet 
with a huge "size" parameter is actually quite inefficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:32:04 +00:00
Owen Anderson
f2aa160b35 A better fix for PR2503 that doesn't pessimize GVN in the presence of unreachable blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:20:16 +00:00
Mon P Wang
bee98c66c0 Fixed problem in EmitStackConvert where the source and target type 
have different alignment by creating a stack slot with the max
alignment of source and target type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53031 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:07:12 +00:00
Chris Lattner
349db1738d instead of aborting on shifts of i1, just implicitly fold them. 
The dag combiner can produce a shift of i1 when folding icmp i1's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:01:57 +00:00
Duncan Sands
8dd5af562b Fix typo compounded by a cut-and-pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53012 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 10:03:53 +00:00
Duncan Sands
3a38e5e3c4 Let AnalyzeNewNode take care of calling ExpungeNode. 
This makes sure that all new nodes are expunged, not
just those the top node of a new subtree.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 09:56:41 +00:00
Evan Cheng
c6be777208 - Use a faster priority comparison function if -fast. 
- Code clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 09:23:51 +00:00
Chris Lattner
fce6e546aa Add a new (simple) StringMap::clear method, patch by Pratik 
Solanki!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53008 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 05:26:32 +00:00
Devang Patel
1e41f6d724 reuse vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53007 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 01:44:29 +00:00
Devang Patel
2095c38c7a Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53006 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 01:31:19 +00:00
Devang Patel
e6962dfb64 Preserve loop data so that it is not fetched everytime it is needed. 
Keep track of currentLoop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53005 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 01:18:13 +00:00
Bill Wendling
3a43a7f8b2 Use the canonical form for getting an empty structure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 00:50:02 +00:00
Bill Wendling
12432cfc59 Sorry. I couldn't sleep at night knowing I put these ugly casts into the source tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53001 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 00:35:47 +00:00
Owen Anderson
72e61b8501 Add a version of AddString that takes a const char* so we can avoid extraneous 
conversions to std::string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52995 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 23:49:59 +00:00
Bill Wendling
aa8f8889a8 Darwin doesn't need exception handling information for the "move" info when 
debug information is being output, because it's leet!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 23:34:48 +00:00
Evan Cheng
6547e406cf Avoid creating expensive comment string if it's not going to be printed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52992 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 23:18:29 +00:00
Owen Anderson
4474c792c6 No need to use std::distance. We can just count the number of operands 
much more cheaply.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52990 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 22:34:11 +00:00
Evan Cheng
1096734011 Simplify addRegisterKilled and addRegisterDead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52988 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 22:21:21 +00:00
Bill Wendling
a28cd12b06 - Update comments. 
- Don't use GlobalVariable::LinkageTypes when unsigned works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52987 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 22:08:01 +00:00
Dale Johannesen
62bc8a4486 Fix longstanding thinko: don't exclude 
predessors of exit blocks from tail merging
consideration.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52985 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 21:50:14 +00:00
Devang Patel
f35cfe11ef Disable dom info verifier by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52983 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 21:36:11 +00:00
Evan Cheng
6518c6ed7e Eliminate a compile time warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52982 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 21:35:46 +00:00
Owen Anderson
25995093e7 Add a version of AsmPrinter::EOL that takes a const char* so that we don't have to do as many implicit std::string constructions. 
Unfortunately, this doesn't appear to translate to a real speedup in practice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52981 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 21:16:27 +00:00
Bill Wendling
836ba9d7e7 Remove warning about initialization order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52980 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 21:00:31 +00:00
Devang Patel
844a3d163b Fix typos in comments. 
Thanks for the feedback!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52978 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 19:50:56 +00:00
Dan Gohman
2dad0250f6 Prune a few dependencies on MachineFunction.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52976 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 18:15:35 +00:00
Evan Cheng
f1a792bc59 Do run ComputeLiveOutVRegInfo with -fast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52975 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 18:15:04 +00:00
Evan Cheng
4576f6d7a9 Do not use computationally expensive scheduling heuristics with -fast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52971 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 18:05:03 +00:00
Evan Cheng
ebffb660a6 Apply Chris' suggestion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52970 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 17:59:20 +00:00
Devang Patel
5b57e720c8 Add dom info verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52967 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 17:44:24 +00:00
Owen Anderson
605041e5a8 Make the subregister hashtable output more readable by wrapping the lines, 
and mark it const along with the associated changes to TargetRegisterInfo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52966 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 17:34:38 +00:00
Duncan Sands
d9ad8abc8e Highlight that getMergeValues optimization is 
being suppressed here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52952 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 08:00:49 +00:00
Owen Anderson
c4b871c650 Properly handle cases where a predecessor of the block being queried on is unreachable. 
This fixes PR2503, though we should also fix other passes not to emit this kind of code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52946 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 00:40:58 +00:00
Owen Anderson
f4f9c4f1cf Replace the dynamically computed std::set lookup method for subregisters with a hashtable-based 
version that is computed by tblgen at the time LLVM is compiled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52945 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 00:18:52 +00:00
Dan Gohman
528bc02877 Minimize duplicated code in AsmPrinter::printLabel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52944 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 00:16:26 +00:00
Dan Gohman
4406604047 Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating 
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-01 00:05:16 +00:00
Evan Cheng
ee4dc16d75 Suppress compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52934 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:33:56 +00:00
Evan Cheng
9ef4c5302e Don't run stack slot coloring if -fast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52933 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:33:16 +00:00
Dan Gohman
cbe615f7eb Don't use ISD namespace opcodes for MachineInstrs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52932 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:23:08 +00:00
Dan Gohman
99fe47bc81 Use a simpler but equivalent form of RecordSource. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52931 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:21:03 +00:00
Evan Cheng
f667480d84 Add timing report for various sub-passes under SelectionDAGISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:10:09 +00:00
Dan Gohman
d19a53ba1d std::ostream and std::string microoptimizations for asm printing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52929 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 22:03:41 +00:00
Dan Gohman
cf8462f300 Use reserve. 
SelectionDAG::allnodes_size is linear, but that doesn't appear to
outweigh the benefit of reducing heap traffic. If it does become a
problem, we should teach SelectionDAG to keep a count of how many
nodes are live, because there are several other places where that
information would be useful as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52926 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 21:04:06 +00:00
Dan Gohman
87060f55f2 Update comments to new-style syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52925 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 21:00:56 +00:00
Dan Gohman
7f460203b0 Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect its 
purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52924 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:59:49 +00:00
Evan Cheng
db8d56b825 Split scheduling from instruction selection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52923 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:45:06 +00:00
Dale Johannesen
edec8d89df No need to align the stack if there are no stack 
objects.  Fixes a couple of tests on Linux.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52921 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:40:16 +00:00
Evan Cheng
fdb99838a3 Remove unneeded include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52920 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:38:22 +00:00
Dan Gohman
a44b674a42 Replace some std::vectors that showed up in heap profiling with 
SmallVectors. Change the signature of TargetLowering::LowerArguments
to avoid returning a vector by value, and update the two targets
which still use this directly, Sparc and IA64, accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52917 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:31:15 +00:00
Dan Gohman
117b64b3f8 Correct the allocation size for CCState's UsedRegs member, which 
only needs one bit for each register. UsedRegs is a SmallVector
sized at 16, so this eliminates a heap allocation/free for every
call and return processed by Legalize on most targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52915 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 20:25:31 +00:00
Devang Patel
687e03b2fa Move dominator info printer into tool/opt/GraphPrinters.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52907 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 17:32:58 +00:00
Duncan Sands
6f7e1cddf6 ExpungeNode is only needed for new nodes! This 
fixes CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll
when using the new LegalizeTypes infrastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52903 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 16:43:45 +00:00
Duncan Sands
d3ca9fc998 Support for VAARG. As noted in a comment, this is 
wrong for types like x86 long double and i1, but
no worse than what is done in LegalizeDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 13:55:15 +00:00
Duncan Sands
7fc8ab81f5 Support for promoting select_cc operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 11:50:11 +00:00
Duncan Sands
f9516208e5 Revert the SelectionDAG optimization that makes 
it impossible to create a MERGE_VALUES node with
only one result: sometimes it is useful to be able
to create a node with only one result out of one of
the results of a node with more than one result, for
example because the new node will eventually be used
to replace a one-result node using ReplaceAllUsesWith,
cf X86TargetLowering::ExpandFP_TO_SINT.  On the other
hand, most users of MERGE_VALUES don't need this and
for them the optimization was valuable.  So add a new
utility method getMergeValues for creating MERGE_VALUES
nodes which by default performs the optimization.
Change almost everywhere to use getMergeValues (and
tidy some stuff up at the same time).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 10:19:09 +00:00
Evan Cheng
0ff39b3feb - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag. 
- Correctly handle memcpy from constant string which is zero-initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52891 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 07:31:25 +00:00
Chris Lattner
80c1a5622a Implement split and scalarize for SELECT_CC, fixing PR2504 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52887 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 02:43:01 +00:00
Nick Lewycky
a11e2eb845 Add a value range analysis that lazily computes ranges using ScalarEvolutions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52885 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-30 00:04:21 +00:00
Anton Korobeynikov
6d116bc7ce Revert (52748 and friends): 
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52884 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-29 17:57:03 +00:00
Anton Korobeynikov
28a2b54580 Start refactoring of asmprinters: provide a TAI hook, which will select a 'section kind' for a global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52868 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 13:45:57 +00:00
Anton Korobeynikov
4d580651b3 Unbreak 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:10:06 +00:00
Anton Korobeynikov
f0302cd1ae Temporary rever invalid commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52865 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:48 +00:00
Anton Korobeynikov
e51ab444f4 Move printing of module-level GVs into dedicated helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52864 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:32 +00:00
Anton Korobeynikov
31f98154a7 Use common naming convention 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52863 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:17 +00:00
Anton Korobeynikov
1ecf0eedc4 Factor out stuff into helper function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52862 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:09:01 +00:00
Anton Korobeynikov
36a5701ad7 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52861 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:44 +00:00
Anton Korobeynikov
75b6882d3c Remove X86SharedAsmPrinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52860 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:27 +00:00
Anton Korobeynikov
9136438b08 whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52859 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:08:09 +00:00
Anton Korobeynikov
1c4b5eaa46 Make intel asmprinter child of generic asmprinter, not x86 shared asm printer. This leads to some code duplication, which will be resolved later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52858 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:54 +00:00
Anton Korobeynikov
271329af24 Cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:35 +00:00
Anton Korobeynikov
b131b44443 Whitespace cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52856 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 11:07:18 +00:00
Chris Lattner
03a5707955 Really fix the bootstrap failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52854 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 06:24:50 +00:00
Chris Lattner
b746b82113 Add back the capability to include nul characters in strings with 
GetConstantStringInfo.  This will hopefully restore llvm-gcc to 
happy bootstrap land.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52851 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 05:33:32 +00:00
Chris Lattner
3284d42c17 Tighten up checking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 04:37:04 +00:00
Dan Gohman
77455617fb When folding a bitcast into a load or store, preserve the alignment 
information of the original load or store, which is checked to be
at least as good, and possibly better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52849 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-28 00:45:22 +00:00
Seo Sanghyeon
fd6437f4f9 Fix GetMainExecutable. Patch by Sam Bishop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52847 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 22:55:30 +00:00
Evan Cheng
01b2e236b5 Looks like this condition is inverted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52841 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 22:11:49 +00:00
Chris Lattner
97388469b1 implement some fixme's by making "autorenaming" in the value symbol table not 
thrash the heap with string stuff (e.g. utostr).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52838 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:26:26 +00:00
Chris Lattner
48cd712d4c simplify some code to avoid string thrashing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52837 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:25:24 +00:00
Anton Korobeynikov
8573986f30 Use StringSet instead of std::set<std::string> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52836 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:22:49 +00:00
Chris Lattner
bb0e248718 Add a new version of Module::getFunction that takes a const char* instead 
of a std::string.  This avoids copying the string to the heap in common
cases.  Patch by Pratik Solanki!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52834 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 21:09:10 +00:00
Devang Patel
42af887105 Add dominator info printer pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52829 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 16:43:21 +00:00
Anton Korobeynikov
b2931f29f3 Provide correct encoding for PPC LWARX instructions. 
Patch by Gary Benson!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52828 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 16:10:20 +00:00
Bill Wendling
f0e9c56540 Reduce number of times .size() is called on a vector. Rename some variables to 
match normal naming scheme.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52820 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 07:13:44 +00:00
Owen Anderson
bffdf66b80 Use a SmallSet when we can to reduce memory allocations. 
This speeds up a particular testcase from 0.0302s to 0.0222s in LiveVariables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52819 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 07:05:59 +00:00
Owen Anderson
1360b7d8f8 Cache subregister relationships in a set in TargetRegisterInfo to allow faster lookups. 
This speeds up LiveVariables from 0.6279s to 0.6165s on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52818 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 06:56:04 +00:00
Chris Lattner
3648f9f0ae fix the regressions from Eric's patch by making GetConstantStringInfo 
tolerate a non-nul-terminated string, and handling a direct global 
reference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52813 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:36:51 +00:00
Chris Lattner
07c68f9b6f simplify this check, GetConstantStringInfo validates that a 
global is constant already.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52812 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:18:41 +00:00
Chris Lattner
a534b0f7bf when linking globals, make sure to preserve the address space of the global. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52810 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 03:10:24 +00:00
Bill Wendling
0ac1b6d768 Cruft left from patch revert...sorry. :-( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52808 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:32:08 +00:00
Bill Wendling
914c970899 Reverting broken patch r52803. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52806 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:27:56 +00:00
Owen Anderson
b827c26e1e Don't perform expensive queries checking for super and sub registers when we know that there aren't any. 
This speed up LiveVariables on instcombine at -O0 -g from 0.3855s to 0.3503s.  Look for more improvements in this area soon!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52804 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 01:22:50 +00:00
Bill Wendling
e6b6bae536 - Remove a use of std::vector. 
- Make sure that we're not recalculating the size of a vector
  that never changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52803 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 00:56:36 +00:00
Bill Wendling
305635abea Refactor the DebugInfoDesc stuff out of the MachineModuleInfo file. Clean up 
some uses of std::vector, where it's return std::vector by value. Yuck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-27 00:09:40 +00:00
Chris Lattner
f77e46be6d duncan points out that isOperationLegal includes a check for 
type legality.  Thanks Duncan!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 17:16:00 +00:00
Owen Anderson
8342cfff9a Don't create a whole new string just to copy the elements into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 17:06:02 +00:00
Matthijs Kooijman
f512281d61 Make LLVM compile on DragonFly BSD (PR2499). 
Patch by Hasso Tepper!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 10:36:58 +00:00
Bill Wendling
fc1fd54a34 Cleanup for unitialized types. Patch by Jean-Daniel Dupas! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 08:32:05 +00:00
Chris Lattner
6521549188 "An improved Mach-O file type detection for sys::IdentifyFileType() 
This patch add supports for single architecture mach-o files (the current implementation only support Universal Binary), and solve the signature conflict between java class and Universal Binary magics.

Note that this function will always returned dynamic library for Universal Binaries (like the current implementation) because the binary type is not include in the file header."

Patch by Jean-Daniel Dupas!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 05:17:18 +00:00
Owen Anderson
aefacb5972 Reserve the size we'll need in advance. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 04:47:41 +00:00
Dale Johannesen
b5dae00325 Fixes the last x86-64 test failure in compat.exp: 
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code.  The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing.  This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52750 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 01:51:13 +00:00
Eric Christopher
872a738775 Remove unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52749 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 01:19:35 +00:00
Eric Christopher
0d2b0aba42 Move GetConstantStringInfo to lib/Analysis. Remove 
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52748 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 00:31:12 +00:00
Chris Lattner
cda8875433 when we know the signbit of an input to uint_to_fp is zero, 
change it to sint_to_fp on targets where that is cheaper (and
visaversa of course).  This allows us to compile uint_to_fp to:

_test:
	movl	4(%esp), %eax
	shrl	$23, %eax
	cvtsi2ss	%eax, %xmm0
	movl	8(%esp), %eax
	movss	%xmm0, (%eax)
	ret

instead of:

	.align	3
LCPI1_0:					##  double
	.long	0	## double least significant word 4.5036e+15
	.long	1127219200	## double most significant word 4.5036e+15
	.text
	.align	4,0x90
	.globl	_test
_test:
	subl	$12, %esp
	movl	16(%esp), %eax
	shrl	$23, %eax
	movl	%eax, (%esp)
	movl	$1127219200, 4(%esp)
	movsd	(%esp), %xmm0
	subsd	LCPI1_0, %xmm0
	cvtsd2ss	%xmm0, %xmm0
	movl	20(%esp), %eax
	movss	%xmm0, (%eax)
	addl	$12, %esp
	ret




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-26 00:16:49 +00:00
Owen Anderson
6b098dee28 Remember which MachineOperand we were processing, so we don't have to scan the list to find it again later. 
This speeds up live intervals from 0.37s to 0.30s on instcombine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 23:39:39 +00:00
Dan Gohman
48b0b882c7 Fix the text in an assert string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52744 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 22:14:43 +00:00
Evan Cheng
ab26227c8c - Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into a 
shift.
- Add a readme entry for a missing vector_shuffle optimization that results in
  awful codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52740 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:52:59 +00:00
Duncan Sands
041cde26ea Add support for expanding PPC 128 bit floats. 
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that.  I also added libcalls
for ppcf128 to i32 forms of FP_TO_XINT, since
they exist in libgcc and this case can certainly
occur (and does occur in the testsuite) - before
the i64 libcall was being used.  Also, the
XINT_TO_FP result seemed to be wrong when
the argument is an i128: the wrong fudge
factor was added (the i32 and i64 cases were
handled directly, but the i128 code fell
through to some generic softening code which
seemed to think it was i64 to f32!).  So I
fixed it by adding a fudge factor that I
found in my breakfast cereal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:24:48 +00:00
Chris Lattner
18e0459837 Implement JIT support for global aliases, patch by David Chisnall! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 20:21:35 +00:00
Evan Cheng
890aaa8710 Restore DeadArgElim back to 52570. It's breaking 447.dealII. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52736 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 18:10:09 +00:00
Chris Lattner
bc52cada09 Switch the PPC backend and target-independent JIT to use the libsystem 
InvalidateInstructionCache method instead of calling through
a hook on the JIT.  This is a host feature, not a target feature.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:18:44 +00:00
Chris Lattner
95f39009aa fix compilation errors in my previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52733 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:17:53 +00:00
Chris Lattner
93bb4aa0ce Add a new InvalidateInstructionCache method to sys::Memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52731 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 17:14:10 +00:00
Dan Gohman
44030ce66e SimpleInstructionSelector is here no more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52725 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:38:59 +00:00
Duncan Sands
11ac797f5e Add/complete support for integer and float 
select_cc and friends.  This code could be
factorized a bit but I'm not sure that it's
worth it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52724 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:34:21 +00:00
Duncan Sands
b58d211dbb Pacify gcc-4.3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52723 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:31:18 +00:00
Dan Gohman
fd4418fc9b Remove the OrigVT member from AtomicSDNode, as it is redundant with 
the base SDNode's VTList.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52722 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 16:07:49 +00:00
Mon P Wang
2887310630 Added MemOperands to Atomic operations since Atomics touches memory. 
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52706 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:15:39 +00:00
Matthijs Kooijman
ea9e516e86 Fix a (false) warning on darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:12:16 +00:00
Matthijs Kooijman
177058b4bd Fix some cosmetics in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 08:10:21 +00:00
Evan Cheng
e5334ea518 - Use O(1) check of basic block size limit. 
- Avoid speculatively execute vector ops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 07:50:12 +00:00
Chris Lattner
aa0bf52625 Fix PR2488, a case where we deleted stack restores too aggressively. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 05:59:28 +00:00
Evan Cheng
601ca4b434 Enable two-address remat by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 01:16:38 +00:00
Owen Anderson
e4f6ee590b Use push_back rather than operator[], which is incorrect in this cases. Unfortunately, this slow the testcase down a little bit, 
but only marginally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-25 01:05:05 +00:00
Dan Gohman
153d28a414 Append to the ActiveTimers std::vector before looking at the timer instead 
of after, so that any reallocation it does doesn't get counted for the pass
being timed.  This probably doesn't account for a timing discrepancy I was
looking into, but I'm fixing it anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 22:07:07 +00:00
Dale Johannesen
a68f9013f2 Add v2f32 (MMX) type to X86. Support is primitive: 
load,store,call,return,bitcast.  This is enough to
make call and return work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52691 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 22:01:44 +00:00
Owen Anderson
45e3958941 In ConstantArray::getAsString(), we know the size of the resultant string in advance so we can pre-allocate it and just fill in 
the entries.  This improves the time for the AsmPrinter on InstructionCombining.cpp from 0.4248s to 0.3370s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52690 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 21:58:29 +00:00
Owen Anderson
873e1b5642 Use SmallVector instead of std::vector for a minor compile time improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52689 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 21:44:59 +00:00
Dan Gohman
8dbe7f832e Revert 52645, the loop unroller changes. It caused a regression in 252.eon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 20:44:42 +00:00
Dan Gohman
2864ce6065 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-06-24 18:00:21 +00:00