add testcase for r61051

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61052 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/GlobalOpt/heap-sra-2.ll b/test/Transforms/GlobalOpt/heap-sra-2.ll
new file mode 100644 (file)
index 0000000..47a2e88
--- /dev/null
+++ b/test/Transforms/GlobalOpt/heap-sra-2.ll
@@ -0,0 +1,42 @@
+; RUN: llvm-as < %s | opt -globalopt | llvm-dis | grep {@X.f0}
+; RUN: llvm-as < %s | opt -globalopt | llvm-dis | grep {@X.f1}
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i386-apple-darwin7"
+       %struct.foo = type { i32, i32 }
+@X = internal global %struct.foo* null         ; <%struct.foo**> [#uses=2]
+
+define internal fastcc void @bar(i32 %Size) nounwind noinline {
+entry:
+       %0 = malloc [1000000 x %struct.foo]
+        ;%.sub = bitcast [1000000 x %struct.foo]* %0 to %struct.foo*
+       %.sub = getelementptr [1000000 x %struct.foo]* %0, i32 0, i32 0         ; <%struct.foo*> [#uses=1]
+       store %struct.foo* %.sub, %struct.foo** @X, align 4
+       ret void
+}
+
+define internal fastcc i32 @baz() nounwind readonly noinline {
+bb1.thread:
+       %0 = load %struct.foo** @X, align 4             ; <%struct.foo*> [#uses=1]
+       br label %bb1
+
+bb1:           ; preds = %bb1, %bb1.thread
+       %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ]             ; <i32> [#uses=2]
+       %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ]             ; <i32> [#uses=1]
+       %1 = getelementptr %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0           ; <i32*> [#uses=1]
+       %2 = load i32* %1, align 4              ; <i32> [#uses=1]
+       %3 = add i32 %2, %sum.0.reg2mem.0               ; <i32> [#uses=2]
+       %indvar.next = add i32 %i.0.reg2mem.0, 1                ; <i32> [#uses=2]
+       %exitcond = icmp eq i32 %indvar.next, 1200              ; <i1> [#uses=1]
+       br i1 %exitcond, label %bb2, label %bb1
+
+bb2:           ; preds = %bb1
+       ret i32 %3
+}
+
+define i32 @main(i32 %argc, i8** %argv) nounwind {
+entry:
+       tail call fastcc void @bar(i32 %argc) nounwind noinline
+       %0 = tail call fastcc i32 @baz() nounwind               ; <i32> [#uses=1]
+       ret i32 %0
+}