6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-02 07:11:49 +00:00
Code Issues Projects Releases Wiki Activity

More info about Thumb1 predication support.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75220 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2009-07-10 02:10:17 +00:00
parent 892837abf3
commit b6264decdb
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Target/ARM/README-Thumb.txt
View File

@ -236,4 +236,5 @@ to avoid extra work when we convert Thumb2 instructions to Thumb1 instructions.
//===---------------------------------------------------------------------===// //===---------------------------------------------------------------------===//
We need to make (some of the) Thumb1 instructions predicable. That will allow We need to make (some of the) Thumb1 instructions predicable. That will allow
shrinking of predicated Thumb2 instructions. shrinking of predicated Thumb2 instructions. To allow this, we need to be able
to toggle the 's' bit since they do not set CPSR when they are inside IT blocks.