Partially address a README by having functionattrs consider calls to

[oota-llvm.git] / test / Transforms / FunctionAttrs / 2008-10-04-LocalMemory.ll

diff --git a/test/Transforms/FunctionAttrs/2008-10-04-LocalMemory.ll b/test/Transforms/FunctionAttrs/2008-10-04-LocalMemory.ll
index 09eb4687ac2633d7be3d6bebf1ef01b2e12d4395..460780d8ea56fd8fb22a280d4446cc925ce57660 100644 (file)
--- a/test/Transforms/FunctionAttrs/2008-10-04-LocalMemory.ll
+++ b/test/Transforms/FunctionAttrs/2008-10-04-LocalMemory.ll
@@ -1,6 +1,8 @@
-; RUN: opt < %s -functionattrs -S | grep readnone | count 2
+; RUN: opt < %s -functionattrs -S | grep readonly | count 3
 
-declare i32 @g(i32*) readnone
+%struct.X = type { i32*, i32* }
+
+declare i32 @g(i32*) readonly
 
 define i32 @f() {
        %x = alloca i32         ; <i32*> [#uses=2]
@@ -8,3 +10,30 @@ define i32 @f() {
        %y = call i32 @g(i32* %x)               ; <i32> [#uses=1]
        ret i32 %y
 }
+
+define i32 @foo() nounwind {
+entry:
+  %y = alloca %struct.X                           ; <%struct.X*> [#uses=2]
+  %x = alloca %struct.X                           ; <%struct.X*> [#uses=2]
+  %j = alloca i32                                 ; <i32*> [#uses=2]
+  %i = alloca i32                                 ; <i32*> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  store i32 0, i32* %i, align 4
+  store i32 1, i32* %j, align 4
+  %0 = getelementptr inbounds %struct.X* %y, i32 0, i32 0 ; <i32**> [#uses=1]
+  store i32* %i, i32** %0, align 8
+  %1 = getelementptr inbounds %struct.X* %x, i32 0, i32 1 ; <i32**> [#uses=1]
+  store i32* %j, i32** %1, align 8
+  %x1 = bitcast %struct.X* %x to i8*              ; <i8*> [#uses=2]
+  %y2 = bitcast %struct.X* %y to i8*              ; <i8*> [#uses=1]
+  call void @llvm.memcpy.i64(i8* %x1, i8* %y2, i64 8, i32 1)
+  %2 = bitcast i8* %x1 to i32**                   ; <i32**> [#uses=1]
+  %3 = load i32** %2, align 8                     ; <i32*> [#uses=1]
+  %4 = load i32* %3, align 4                      ; <i32> [#uses=1]
+  br label %return
+
+return:                                           ; preds = %entry
+  ret i32 %4
+}
+
+declare void @llvm.memcpy.i64(i8* nocapture, i8* nocapture, i64, i32) nounwind