[llvm-commits] [llvm] r89982 - /llvm/trunk/lib/Target/README.txt

[Chris Lattner]

Author: lattner
Date: Thu Nov 26 18:35:04 2009
New Revision: 89982

URL: http://llvm.org/viewvc/llvm-project?rev=89982&view=rev
Log:
this (and probably several others) are now done.

Modified:
    llvm/trunk/lib/Target/README.txt

Modified: llvm/trunk/lib/Target/README.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/README.txt?rev=89982&r1=89981&r2=89982&view=diff

==============================================================================
--- llvm/trunk/lib/Target/README.txt (original)
+++ llvm/trunk/lib/Target/README.txt Thu Nov 26 18:35:04 2009
@@ -1196,39 +1196,6 @@
 
 GCC PR33344 is a similar case.
 
-//===---------------------------------------------------------------------===//
-
-[PHI TRANSLATE INDEXED GEPs]  PR5313
-
-Load redundancy elimination for simple loop.  This loop:
-
-void append_text(const char* text,unsigned char * const  io) {
-  while(*text)
-    *io=*text++;
-}
-
-Compiles to have a fully redundant load in the loop (%2):
-
-define void @append_text(i8* nocapture %text, i8* nocapture %io) nounwind {
-entry:
-  %0 = load i8* %text, align 1                    ; <i8> [#uses=1]
-  %1 = icmp eq i8 %0, 0                           ; <i1> [#uses=1]
-  br i1 %1, label %return, label %bb
-
-bb:                                               ; preds = %bb, %entry
-  %indvar = phi i32 [ 0, %entry ], [ %tmp, %bb ]  ; <i32> [#uses=2]
-  %text_addr.04 = getelementptr i8* %text, i32 %indvar ; <i8*> [#uses=1]
-  %2 = load i8* %text_addr.04, align 1            ; <i8> [#uses=1]
-  store i8 %2, i8* %io, align 1
-  %tmp = add i32 %indvar, 1                       ; <i32> [#uses=2]
-  %scevgep = getelementptr i8* %text, i32 %tmp    ; <i8*> [#uses=1]
-  %3 = load i8* %scevgep, align 1                 ; <i8> [#uses=1]
-  %4 = icmp eq i8 %3, 0                           ; <i1> [#uses=1]
-  br i1 %4, label %return, label %bb
-
-return:                                           ; preds = %bb, %entry
-  ret void
-}
 
 //===---------------------------------------------------------------------===//