RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-04-05 17:21:39 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Documentation: fix typos and formatting.

Browse Source 
llvm-svn: 169546
This commit is contained in:
Dmitri Gribenko 2012-12-06 21:12:35 +00:00
parent 634ab4f1bc
commit f65a4023ee
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
docs/GetElementPtr.rst
View File

@ -22,7 +22,7 @@ Address Computation
When people are first confronted with the GEP instruction, they tend to relate When people are first confronted with the GEP instruction, they tend to relate
it to known concepts from other programming paradigms, most notably C array it to known concepts from other programming paradigms, most notably C array
indexing and field selection. GEP closely resembles C array indexing and field indexing and field selection. GEP closely resembles C array indexing and field
selection, however it's is a little different and this leads to the following selection, however it is a little different and this leads to the following
questions. questions.
What is the first index of the GEP instruction? What is the first index of the GEP instruction?
@ -190,7 +190,7 @@ In this example, we have a global variable, ``%MyVar`` that is a pointer to a
structure containing a pointer to an array of 40 ints. The GEP instruction seems structure containing a pointer to an array of 40 ints. The GEP instruction seems
to be accessing the 18th integer of the structure's array of ints. However, this to be accessing the 18th integer of the structure's array of ints. However, this
is actually an illegal GEP instruction. It won't compile. The reason is that the is actually an illegal GEP instruction. It won't compile. The reason is that the
pointer in the structure <i>must</i> be dereferenced in order to index into the pointer in the structure *must* be dereferenced in order to index into the
array of 40 ints. Since the GEP instruction never accesses memory, it is array of 40 ints. Since the GEP instruction never accesses memory, it is
illegal. illegal.
@ -416,7 +416,7 @@ arithmetic, and inttoptr sequences.
Can I compute the distance between two objects, and add that value to one address to compute the other address? Can I compute the distance between two objects, and add that value to one address to compute the other address?
--------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------------
As with arithmetic on null, You can use GEP to compute an address that way, but As with arithmetic on null, you can use GEP to compute an address that way, but
you can't use that pointer to actually access the object if you do, unless the you can't use that pointer to actually access the object if you do, unless the
object is managed outside of LLVM. object is managed outside of LLVM.