X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FREADME.txt;h=7e9888cc13e80b48466cb5cca8997819eb07cb92;hb=90858d35f8550467d9d6347a04b326620faf0d9c;hp=0fa56e66747d9230281432fca4f8ad42cc9da230;hpb=2f8f1d34e39546223c960932a5ede83fa400b3f8;p=oota-llvm.git

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 0fa56e66747..7e9888cc13e 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -106,7 +106,7 @@ for 1,2,4,8 bytes.
 //===---------------------------------------------------------------------===//
 
 It would be nice to revert this patch:
-http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20060213/031986.html
+http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20060213/031986.html
 
 And teach the dag combiner enough to simplify the code expanded before 
 legalize.  It seems plausible that this knowledge would let it simplify other
@@ -1268,7 +1268,8 @@ int foo (void) {
 ..
   else if (strchr ("<>", *intel_parser.op_string)
 
-Those should be turned into a switch.
+Those should be turned into a switch.  SimplifyLibCalls only gets the second
+case.
 
 //===---------------------------------------------------------------------===//
 
@@ -1843,44 +1844,6 @@ we remove checking in code like
 
 //===---------------------------------------------------------------------===//
 
-This code (from Benchmarks/Dhrystone/dry.c):
-
-define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
-entry:
-  %sext = shl i32 %0, 24
-  %conv = ashr i32 %sext, 24
-  %sext6 = shl i32 %1, 24
-  %conv4 = ashr i32 %sext6, 24
-  %cmp = icmp eq i32 %conv, %conv4
-  %. = select i1 %cmp, i32 10000, i32 0
-  ret i32 %.
-}
-
-Should be simplified into something like:
-
-define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
-entry:
-  %sext = shl i32 %0, 24
-  %conv = and i32 %sext, 0xFF000000
-  %sext6 = shl i32 %1, 24
-  %conv4 = and i32 %sext6, 0xFF000000
-  %cmp = icmp eq i32 %conv, %conv4
-  %. = select i1 %cmp, i32 10000, i32 0
-  ret i32 %.
-}
-
-and then to:
-
-define i32 @Func1(i32, i32) nounwind readnone optsize ssp {
-entry:
-  %conv = and i32 %0, 0xFF
-  %conv4 = and i32 %1, 0xFF
-  %cmp = icmp eq i32 %conv, %conv4
-  %. = select i1 %cmp, i32 10000, i32 0
-  ret i32 %.
-}
-//===---------------------------------------------------------------------===//
-
 clang -O3 currently compiles this code
 
 int g(unsigned int a) {