requirements. We must return NaN in some cases and correctly signed
infinity in other cases. Passes CFP2006 (not that that says much).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35277 91177308-0d34-0410-b5e6-96231b3b80d8
Radically simplify the SlotMachine. There is no need to keep Value planes
around any more. This change causes slot numbering to number all un-named,
non-void values starting at 0 and incrementing monotonically through the
function, regardless of type (including BasicBlocks). Getting slot numbers
is now a single lookup operation instead of a double lookup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35171 91177308-0d34-0410-b5e6-96231b3b80d8
preserve dominator info then it should update parent FPPassManager's
available analysis info to reflect this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34942 91177308-0d34-0410-b5e6-96231b3b80d8
current active pass manager is appropriate or not.
A loop pass may consider current LPPassManager in appropraite if loop
pass is not preserving analysis information that is used by other
passes managed by current LPPassManager. In such situation, loop pass
can pop current LPPassManager from the PMStack using this hook
and use new LPPassManager for itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34941 91177308-0d34-0410-b5e6-96231b3b80d8
last user when one of the managed pass uses info provided by parent pass
manager.
This was exposed by LPPassManager work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34936 91177308-0d34-0410-b5e6-96231b3b80d8
and back. While this is not strictly necessary, it does pave the way for
future changes in casting. It should now be possible to improve vector
casting to deal with un-equal fp/int sizes.
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from a predicate and an APInt. This is removed from ConstantRange class
so that ConstantRange doesn't have to depend on lib/VMCore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34760 91177308-0d34-0410-b5e6-96231b3b80d8
Implement review feedback:
1. Use new APInt::RoundDoubleToAPInt interface to specify the bit width so
that we don't have to truncate or extend in constant folding.
2. Fix a pasteo in SDiv that prevented a check for overflow.
3. Fix the shift operators: undef happens when the shift amount is equal
to the bitwidth.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34677 91177308-0d34-0410-b5e6-96231b3b80d8
Implement the first step towards arbitrary precision integer support in
LLVM. The APInt class provides arbitrary precision arithmetic and value
representation. This patch changes ConstantInt to use APInt as its value
representation without supporting bit widths > 64 yet. That change will
come after ConstantFolding handles bit widths > 64 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34647 91177308-0d34-0410-b5e6-96231b3b80d8
exprs hanging off a global, even if the global is not otherwise dead. This
requires some tricky iterator gymnastics.
This implements Transforms/GlobalOpt/constantexpr-dangle.ll by deleting a
constantexpr that made it appear that the address of the function was taken.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34608 91177308-0d34-0410-b5e6-96231b3b80d8
heavy-weight ValueMap class. This reduces mem usage bc reading kc++ by 29K,
even though it only creates 2955 constant ints!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34445 91177308-0d34-0410-b5e6-96231b3b80d8
causes it to require no allocations and no symtab lookups in the common
case. This speeds up instcombine 9.2% on 447.dealII.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34324 91177308-0d34-0410-b5e6-96231b3b80d8
as its main datastructure. There are many improvements yet to be made, but
this speeds up opt --std-compile-opts on 447.dealII by 7.3%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34193 91177308-0d34-0410-b5e6-96231b3b80d8
delete ParseBytecodeFile(InputFilename, 0, &ErrorMessage);
llvm_shutdown();
delete ParseBytecodeFile(InputFilename, 0, &ErrorMessage);
The primitive type objects failed to ressurect themselves after shutdown, leading
to crashes in clients that used them after llvm_shutdown().
This solution isn't wonderful, because we clearly have static ctors. However,
the code it replaces was just as bad, so it's not a regression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34106 91177308-0d34-0410-b5e6-96231b3b80d8
to construct FunctionType in separate function, and, have getDeclaration
return a Function instead of a Constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34008 91177308-0d34-0410-b5e6-96231b3b80d8
This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33918 91177308-0d34-0410-b5e6-96231b3b80d8
Make the Module's dependent library use a std::vector instead of SetVector
adjust #includes in .cpp files because SetVector.h is no longer included.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33855 91177308-0d34-0410-b5e6-96231b3b80d8
This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
PassManagers.h).
- Add StopPassTimer() and StartPassTimer() to expose TimingInfo to
CallGraphPassManager
- Use these two APIs in CalLgraphPassManager to measure timings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33638 91177308-0d34-0410-b5e6-96231b3b80d8
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.
NOTEs: 1. Documentation will be updated soon.
2. llvm-upgrade should be improved to translate csret => sret.
Before this, there will be some unexpected test fails.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
Remove the setEndianess and setPointerSize methods. These are now
handled via the setDataLayout method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33527 91177308-0d34-0410-b5e6-96231b3b80d8
Implement new syntax for local and global symbols. Types and local
symbols use the % prefix. Global variables and functions use the @ prefix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33523 91177308-0d34-0410-b5e6-96231b3b80d8
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*
This also fixes PR1120.
Patch by Sheng Zhou.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33370 91177308-0d34-0410-b5e6-96231b3b80d8
mostly be used by back ends that wish to distinguish between integer types
that fit evenly within a natural integer type and those that don't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33328 91177308-0d34-0410-b5e6-96231b3b80d8
pass manager type. This allows new FPPassManager to select Call Graph
Pass Manager (if available) as its parent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33306 91177308-0d34-0410-b5e6-96231b3b80d8
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.
This makes naming much more consistent. For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33225 91177308-0d34-0410-b5e6-96231b3b80d8
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33136 91177308-0d34-0410-b5e6-96231b3b80d8
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.
This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
bits in an integer. The Type classes SubclassData field is used to
store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
64-bit integers. These are replaced with just IntegerType which is not
a primitive any more.
3. Adjust the rest of LLVM to account for this change.
Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types. Future increments
will rectify this situation.
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recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33110 91177308-0d34-0410-b5e6-96231b3b80d8
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8
in getLocalSlot fires on many, many values. It broke nearly all of
the dejagnu tests. Simple changes to the assertion did not fix the
problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33054 91177308-0d34-0410-b5e6-96231b3b80d8
Eventually, Top level pass managers will use this to keep track of
active pass managers. Eass pass will also learn how to find appropriate
manager from these managers stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33018 91177308-0d34-0410-b5e6-96231b3b80d8
Take an incremental step towards type plane elimination. This change
separates types from values in the symbol tables by finally making use
of the TypeSymbolTable class. This yields more natural interfaces for
dealing with types and unclutters the SymbolTable class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32956 91177308-0d34-0410-b5e6-96231b3b80d8
1. The @ sign is no longer necessary.
2. We now support "function attributes" as parameter attribute 0.
3. Instead of locating the return type attributes after the type of a
function result, they are now located after the function header's
closing paranthesis and before any alignment or section options.
4. The way has been prepared for a new "noreturn" function attribute but
there is no support for recognizing it in the lexer nor doing anything
with it if it does get set.
5. The FunctionType::getParamAttrsText method now has support for
returning multiple attributes. This required a change in its interface.
I'm unhappy that this change leads to 6 new shift/reduce conflicts, but
in each case bison's decision to choose the shift is correct so there
shouldn't be any damage from these conflicts.
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The lookup of parameter attributes was offset by two because of the
additional operands in an invoke instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32801 91177308-0d34-0410-b5e6-96231b3b80d8
* Change integer type name from signed to signless
* Implement printing of FunctionType parameter attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32778 91177308-0d34-0410-b5e6-96231b3b80d8
Remove all grammar conflicts from assembly parsing. This change involves:
1. Making the "type" keyword not a primitive type (removes several
reduce/reduce conflicts)
2. Being more specific about which linkage types are allowed for functions
and global variables. In particular "appending" can no longer be
specified for a function. A differentiation was made between the various
internal and external linkage types.
3. Introduced the "define" keyword which is now required when defining a
function. This disambiguates several cases where a named function return
type could get confused with the definition of a new type. Using the
keyword eliminates all shift/reduce conflicts and the remaining
reduce/reduce conflicts.
These changes are necessary to implement the function parameter attributes
that will be introduced soon. Adding the function parameter attributes in
the presence of the shift/reduce and reduce/reduce conflicts led to severe
ambiguities that caused the parser to report syntax errors that needed to
be resolved. This patch resolves them.
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1. Make the arguments const like the other ConstantFold* functions.
2. Clean up evaluateFCmpRelation so it makes sense for floating point.
3. Implement the use of evaluateFCmpRelation to fold floating point CEs
4. Shorten a variable name so more things fit on one line.
5. Fix various comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32759 91177308-0d34-0410-b5e6-96231b3b80d8
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
pass managers. Otherwise, stale available analysis info, from the managers not
yet run, may cause pass manager to take wrong turn.
This fixes CBE test failures reported by nightly tester.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32726 91177308-0d34-0410-b5e6-96231b3b80d8
values regardless of the signedness of the constant's type, it is okay to
always make the AsmWriter.cpp print constant ints as signed values. The
AsmParser will automatically handle things like: uint -1 as a result.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32686 91177308-0d34-0410-b5e6-96231b3b80d8
s/ModulePassManager/MPPassManager/g
s/FunctionPassManagerImpl_New/FunctionPassManagerImpl/g
s/PassManagerImpl_New/PassManagerImpl/g
Introduce FPPassManager to manage function passes and
BBPassManagers.
Now FunctionPassManagerImpl is an implementation class
used by externally visible FunctionPassManager to manage
FPPassManagers.
Module pass manager (MPPassManager) now manages FPPassManagers
and ModulePasses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32679 91177308-0d34-0410-b5e6-96231b3b80d8
ConstRules. Remove the casting rules from ConstRules and subclasses. This
cleans up ConstantFolding significantly. Passes all tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32671 91177308-0d34-0410-b5e6-96231b3b80d8
still check the validity of signed values an overload to isValueValidForType
was added to allow passing in an int64_t to check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32663 91177308-0d34-0410-b5e6-96231b3b80d8
ConstantInt doesn't care about the sign of the type it represents. It only
cares about the bitwidth so there is no need to make the sign of the type
match the SExt or ZExt constant expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32646 91177308-0d34-0410-b5e6-96231b3b80d8
Register pass has the its last user, otherwise sometimes no one will claim
LastUse.
Handle transferred last uses from child pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32589 91177308-0d34-0410-b5e6-96231b3b80d8
continue to use old pass manager at the moment. To use new manager
remove #define USE_OLD_PASSMANAGER 1 from Pass.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32525 91177308-0d34-0410-b5e6-96231b3b80d8
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
o Make IndirectPassManagers vector of PMDataManager *
o Move PMTopLevelManager implementation below all class declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32499 91177308-0d34-0410-b5e6-96231b3b80d8
