Now with source code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42548 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/README-SSE.txt b/lib/Target/X86/README-SSE.txt
index 20e5a91..653a35a 100644 (file)
--- a/lib/Target/X86/README-SSE.txt
+++ b/lib/Target/X86/README-SSE.txt
@@ -673,6 +673,22 @@ beneficial because it prevents the load from being folded into the multiply.
 
 In this loop:
 
+bb49:          ; preds = %bb49, %bb49.preheader
+       %indvar = phi i32 [ 0, %bb49.preheader ], [ %indvar.next, %bb49 ]               ; <i32> [#uses=2]
+       %dp.089.0.rec = shl i32 %indvar, 3              ; <i32> [#uses=2]
+       %dp.089.0 = getelementptr i32* %tmp89, i32 %dp.089.0.rec                ; <i32*> [#uses=1]
+       %tmp5051 = bitcast i32* %dp.089.0 to <2 x i64>*         ; <<2 x i64>*> [#uses=1]
+       store <2 x i64> zeroinitializer, <2 x i64>* %tmp5051, align 16
+       %dp.089.0.sum105 = or i32 %dp.089.0.rec, 4              ; <i32> [#uses=1]
+       %tmp56 = getelementptr i32* %tmp89, i32 %dp.089.0.sum105                ; <i32*> [#uses=1]
+       %tmp5657 = bitcast i32* %tmp56 to <2 x i64>*            ; <<2 x i64>*> [#uses=1]
+       store <2 x i64> zeroinitializer, <2 x i64>* %tmp5657, align 16
+       %indvar.next = add i32 %indvar, 1               ; <i32> [#uses=2]
+       %exitcond = icmp eq i32 %indvar.next, %tmp98            ; <i1> [#uses=1]
+       br i1 %exitcond, label %bb72, label %bb49
+
+we get:
+
 LBB4_6:        # bb47.preheader
        shlw    $2, %si
        decw    %si