that we default to an ANY_EXTEND if no parameter attribute is set on the
result value of a function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32836 91177308-0d34-0410-b5e6-96231b3b80d8
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32833 91177308-0d34-0410-b5e6-96231b3b80d8
things: (1) preventing PR1071 and (2) working around missing parameter
attributes for bool type. (2) will be fixed shortly. When PR1071 is fixed,
this patch should be undone.
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1. Switch expression and cases are compared signed and are sign extended.
2. For function results needing extended, do SIGN_EXTEND if the SExtAttribute
is set and ZERO_EXTEND if the ZExtAttribute is set, otherwise just let
the Legalizer do ANY_EXTEND.
This fixes the recent regression in kimwitu++ and probably the llvm-gcc
bootstrap issue we had today.
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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
Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
type of an function parameter was used to determine whether it should
be sign extended or zero extended before the call. This information is
now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
the parameter attribute information. Although it would have been
convenient to pass in the FunctionType itself, there isn't always one
present in the caller. Consequently, a signedness indication for the
result type and for each parameter was provided for in the interface
to this method. All implementations were changed to make the adjustment
necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32788 91177308-0d34-0410-b5e6-96231b3b80d8
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int -> Int32
4. [U]Long -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
and other methods related to signedness. In a few places this warranted
identifying the signedness information from other sources.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32785 91177308-0d34-0410-b5e6-96231b3b80d8
Update for signless integer types and parameter attribute implementation.
Of significant note:
1. This changes the bytecode format yet again.
2. There are 1/2 as many integer type planes (this is a good thing)
3. GEP indices now use only 1 bit to identify their type which means
more GEP instructions won't be relegated to format 0 (size win)
4. Parameter attributes are implemented but currently being stored
verbosely for each function type. Some other day this needs to be
optimized for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32783 91177308-0d34-0410-b5e6-96231b3b80d8
Major reorganization. This patch introduces the signedness changes for
the new integer types (i8, i16, i32, i64) which replace the old signed
versions (ubyte, sbyte, ushort, short, etc). This patch also implements
the function type parameter attributes feature. Together these conspired
to introduce new reduce/reduce errors into the grammar. Consequently, it
was necessary to introduce a new keyword into the grammar in order to
disambiguate. Without this, yacc would make incorrect shift/reduce and
reduce/reduce decisions and fail to parse the intended assembly.
Changes in assembly:
1. The "implementation" keyword is superfluous but still supported. You
can use it as a sentry which will ensure there are no remaining up
reference types. However, this is optional as those checks are also
performed elsewhere.
2. Parameter attributes are now implemented using an at sign to
indicate the attribute. The attributes are placed after the type
in a function declaration or after the argument value in a function
call. For example:
i8 @sext %myfunc(i16 @zext)
call i8 @sext %myfunc(i16 @zext %someVal)
The facility is available for supporting additional attributes and
they can be combined using the @(attr1,attr2,attr3) syntax. Right
now the only two supported are @sext and @zext
3. Functions must now be defined with the "define" keyword which is
analagous to the "declare" keyword for function declarations. The
introduction of this keyword disambiguates situations where a
named result type is confused with a new type or gvar definition.
For example:
%MyType = type i16
%MyType %func(%MyType) { ... }
With the introduction of optional parameter attributes between
the function name and the function result type, yacc will pick
the wrong rule to reduce unless it is disambiguated with "define"
before the function definition, as in:
define %MyType @zext %func(%MyType %someArg) { ... }
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32781 91177308-0d34-0410-b5e6-96231b3b80d8
* Change integer type name from signed to signless
* Implement printing of FunctionType parameter attributes.
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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
Fix this by ensuring that a bitcast is inserted to do sign switching. This
is only temporarily needed as the merging of signed and unsigned is next
on the SignlessTypes plate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32757 91177308-0d34-0410-b5e6-96231b3b80d8
Don't allow CmpInst instances to be processed in FoldSelectOpOp because
you can't easily swap their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32753 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
1. Patches from Nick Lewycky.
2. Code to filter register names and print them as numeric values on
non-Darwin systems.
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greater than MAX_INT64 for signed integers. This is now valid and is just
waiting for the distinction between signed and unsigned to go away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32716 91177308-0d34-0410-b5e6-96231b3b80d8
code to handle instructions as well, so that we properly fold things like
X & undef -> 0.
This fixes Transforms/SCCP/2006-12-19-UndefBug.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32715 91177308-0d34-0410-b5e6-96231b3b80d8
converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
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(STATISTIC), which allows us to define statistics that don't introduce
static ctors into the .o files. I'm migrating code over to use this
incrementally.
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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.
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creation. These changes are still temporary but at least this pushes
knowledge of signedness out closer to where it can be determined properly
and allows signedness to be removed from VMCore.
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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
Generate the BITCAST_TEMPORARY regardless of the uses or inlinability of
the instruction. This temporary is needed to perform the instruction, not
provide storage for its results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32642 91177308-0d34-0410-b5e6-96231b3b80d8
rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8
by producing target constants instead of constants. Constants can get
selected to li/movri instructions, which causes the scheduler to explode.
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