6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-12-19 11:23:32 +00:00
Code Issues Projects Releases Wiki Activity

Add argmemonly attribute.

Browse Source 
This change adds new attribute called "argmemonly". Function marked with this attribute can only access memory through it's argument pointers. This attribute directly corresponds to the "OnlyAccessesArgumentPointees" ModRef behaviour in alias analysis.

Differential Revision: http://reviews.llvm.org/D10398



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241979 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Igor Laevsky
2015-07-11 10:30:36 +00:00
parent 063b6a0120
commit 6690dbffe0
17 changed files with 167 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/llvm/IR/Attributes.h
View File

@@ -98,6 +98,8 @@ public:
OptimizeNone, ///< Function must not be optimized.
ReadNone, ///< Function does not access memory
ReadOnly, ///< Function only reads from memory
ArgMemOnly, ///< Funciton can access memory only using pointers
///< based on its arguments.
Returned, ///< Return value is always equal to this argument
ReturnsTwice, ///< Function can return twice
SExt, ///< Sign extended before/after call