Disable a broken optimization

[oota-llvm.git] / lib / Target / SparcV8 / README.txt

diff --git a/lib/Target/SparcV8/README.txt b/lib/Target/SparcV8/README.txt
index dbd74c8f76d54e2933437eedf926c15d3602b719..f767def1536ae9ab9081cf38ed853f5b07fb9c5c 100644 (file)
--- a/lib/Target/SparcV8/README.txt
+++ b/lib/Target/SparcV8/README.txt
@@ -1,44 +1,15 @@
 
-SparcV8 backend skeleton
-------------------------
-
-This directory houses a 32-bit SPARC V8 backend employing a expander-based
-instruction selector.  It is not yet functionally complete.  Watch
-this space for more news coming soon!
-
-Current expected test failures
-------------------------------
-
-All SingleSource/Benchmarks tests are expected to pass.  Currently, all
-C++ tests and all tests involving varargs intrinsics (use of
-va_start/va_end) are expected to fail.  Here are the known SingleSource
-failures:
-
-       UnitTests/SetjmpLongjmp/C++/C++Catch
-       UnitTests/SetjmpLongjmp/C++/SimpleC++Test
-       UnitTests/2003-05-07-VarArgs
-       UnitTests/2003-07-09-SignedArgs
-       UnitTests/2003-08-11-VaListArg
-       Regression/C++/EH/ConditionalExpr
-       Regression/C++/EH/ctor_dtor_count-2
-       Regression/C++/EH/ctor_dtor_count
-       Regression/C++/EH/exception_spec_test
-       Regression/C++/EH/function_try_block
-       Regression/C++/EH/simple_rethrow
-       Regression/C++/EH/simple_throw
-       Regression/C++/EH/throw_rethrow_test
-       Regression/C/casts
-       CustomChecked/oopack_v1p8
+Meta TODO list:
+1. Create a new DAG -> DAG instruction selector, by adding patterns to the
+   instructions.
+2. ???
+3. profit!
 
 To-do
 -----
 
-* support setcc on longs
-* support basic binary operations on longs
-  - use libc procedures instead of open-coding for:
-    __div64 __mul64 __rem64 __udiv64 __umul64 __urem64
-* support casting 64-bit integers to FP types
-* support varargs intrinsics (va_start et al.)
-
-$Date$
+* Keep the address of the constant pool in a register instead of forming its
+  address all of the time.
+* We can fold small constant offsets into the %hi/%lo references to constant
+  pool addresses as well.