llvm-6502/lib
David Majnemer 39a09d2b7c IR: Change inalloca's grammar a bit
The grammar for LLVM IR is not well specified in any document but seems
to obey the following rules:

 - Attributes which have parenthesized arguments are never preceded by
   commas.  This form of attribute is the only one which ever has
   optional arguments.  However, not all of these attributes support
   optional arguments: 'thread_local' supports an optional argument but
   'addrspace' does not.  Interestingly, 'addrspace' is documented as
   being a "qualifier".  What constitutes a qualifier?  I cannot find a
   definition.

 - Some attributes use a space between the keyword and the value.
   Examples of this form are 'align' and 'section'.  These are always
   preceded by a comma.

 - Otherwise, the attribute has no argument.  These attributes do not
   have a preceding comma.

Sometimes an attribute goes before the instruction, between the
instruction and it's type, or after it's type.  'atomicrmw' has
'volatile' between the instruction and the type while 'call' has 'tail'
preceding the instruction.

With all this in mind, it seems most consistent for 'inalloca' on an
'inalloca' instruction to occur before between the instruction and the
type.  Unlike the current formulation, there would be no preceding
comma.  The combination 'alloca inalloca' doesn't look particularly
appetizing, perhaps a better spelling of 'inalloca' is down the road.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203376 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-09 06:41:58 +00:00
..
Analysis [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
AsmParser IR: Change inalloca's grammar a bit 2014-03-09 06:41:58 +00:00
Bitcode [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
CodeGen [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
DebugInfo Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
ExecutionEngine Make createObjectImage and createObjectImageFromFile static methods on the 2014-03-08 18:45:12 +00:00
IR IR: Change inalloca's grammar a bit 2014-03-09 06:41:58 +00:00
IRReader Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker [Layering] Sink Linker.h into a Linker subdirectory to make it 2014-03-06 03:42:23 +00:00
LTO [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-08 07:51:20 +00:00
MC [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-08 07:14:16 +00:00
Object Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
Option
Support [C++11] Revert uses of lambdas with array_pod_sort. 2014-03-07 21:52:38 +00:00
TableGen Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
Target [C++11] Add range based accessors for the Use-Def chain of a Value. 2014-03-09 03:16:01 +00:00
Transforms Fix build break. 2014-03-09 03:50:36 +00:00
CMakeLists.txt Introduce line editor library. 2014-01-31 23:46:14 +00:00
LLVMBuild.txt Introduce line editor library. 2014-01-31 23:46:14 +00:00
Makefile Introduce line editor library. 2014-01-31 23:46:14 +00:00