add a basic test for heap-sra

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61041 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/GlobalOpt/heap-sra-1.ll b/test/Transforms/GlobalOpt/heap-sra-1.ll
new file mode 100644 (file)
index 0000000..37e6d47
--- /dev/null
+++ b/test/Transforms/GlobalOpt/heap-sra-1.ll
@@ -0,0 +1,34 @@
+; 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
+
+define void @bar(i32 %Size) nounwind noinline {
+entry:
+       %.sub = malloc %struct.foo, i32 %Size   
+       store %struct.foo* %.sub, %struct.foo** @X, align 4
+       ret void
+}
+
+define i32 @baz() nounwind readonly noinline {
+bb1.thread:
+       %0 = load %struct.foo** @X, align 4             
+       br label %bb1
+
+bb1:           ; preds = %bb1, %bb1.thread
+       %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ]
+       %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %3, %bb1 ]
+       %1 = getelementptr %struct.foo* %0, i32 %i.0.reg2mem.0, i32 0
+       %2 = load i32* %1, align 4
+       %3 = add i32 %2, %sum.0.reg2mem.0       
+       %indvar.next = add i32 %i.0.reg2mem.0, 1        
+       %exitcond = icmp eq i32 %indvar.next, 1200              
+       br i1 %exitcond, label %bb2, label %bb1
+
+bb2:           ; preds = %bb1
+       ret i32 %3
+}
+