jyapayne/llvmpy
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Fix corrupted text and example in 7.3 Memory in LLVM

Browse source
This commit is contained in:
David H Post 2013-04-10 15:15:19 -05:00
commit 125e65e261
1 changed files with 6 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

12
docs/source/doc/kaleidoscope/PythonLangImpl7.rst
View file

@ -121,8 +121,8 @@ to talk about how LLVM represents stack variables.
In LLVM, all memory accesses are explicit with load/store instructions, In LLVM, all memory accesses are explicit with load/store instructions,
and it is carefully designed not to have (or need) an "address-of" and it is carefully designed not to have (or need) an "address-of"
operator. Notice how the type of the @G/@H global variables is actually operator. Notice how the type of the @G/@H global variables is actually
"i32\ *" even though the variable is defined as "i32". What this means "i32\*" even though the variable is defined as "i32". What this means
is that @G defines* space* for an i32 in the global data area, but its is that @G defines *space* for an i32 in the global data area, but its
*name* actually refers to the address for that space. Stack variables *name* actually refers to the address for that space. Stack variables
work the same way, except that instead of being declared with global work the same way, except that instead of being declared with global
variable definitions, they are declared with the `LLVM alloca variable definitions, they are declared with the `LLVM alloca
@ -133,11 +133,11 @@ instruction <http://www.llvm.org/docs/LangRef.html#i_alloca>`_:
define i32 @example() { define i32 @example() {
entry: entry:
%X = alloca i32 ; type of %X is i32 *. %X = alloca i32 ; type of %X is i32*
... ...
%tmp = load i32* %X ; load the stack value %X from the stack. %tmp = load i32* %X ; load the stack value %X from the stack
%tmp2 = add i32 %tmp, 1 ; increment it store i32 %tmp2, %tmp2 = add i32 %tmp, 1 ; increment it
i32* %X ; store it back store i32 %tmp2, i32* %X ; store it back
... ...