Enable global address legalization, fixing a todo and allowing the removal

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

diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt
index 88582966994acd5d2e540503f7f08141321de8f5..580affb688ddbda24d97f8ff30b9c100ad12ae1c 100644 (file)
--- a/lib/Target/PowerPC/README.txt
+++ b/lib/Target/PowerPC/README.txt
@@ -31,24 +31,6 @@ as one load when using --enable-pic.
 * Support 'update' load/store instructions.  These are cracked on the G5, but
   are still a codesize win.
 
-* Add a custom legalizer for the GlobalAddress node, to move the funky darwin
-  stub stuff from the instruction selector to the legalizer (exposing low-level
-  operations to the dag for optzn.  For example, we want to codegen this:
-
-        int A = 0;
-        void B() { A++; }
-  as:
-        lis r9,ha16(_A)
-        lwz r2,lo16(_A)(r9)
-        addi r2,r2,1
-        stw r2,lo16(_A)(r9)
-  not:
-        lis r2, ha16(_A)
-        lwz r2, lo16(_A)(r2)
-        addi r2, r2, 1
-        lis r3, ha16(_A)
-        stw r2, lo16(_A)(r3)
-
 * should hint to the branch select pass that it doesn't need to print the
   second unconditional branch, so we don't end up with things like:
        b .LBBl42__2E_expand_function_8_674     ; loopentry.24