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-rw-r--r--test/Transforms/GlobalOpt/heap-sra-phi.ll43
1 files changed, 43 insertions, 0 deletions
diff --git a/test/Transforms/GlobalOpt/heap-sra-phi.ll b/test/Transforms/GlobalOpt/heap-sra-phi.ll
new file mode 100644
index 0000000..6188e5a
--- /dev/null
+++ b/test/Transforms/GlobalOpt/heap-sra-phi.ll
@@ -0,0 +1,43 @@
+; RUN: opt < %s -globalopt -S | grep {tmp.f1 = phi i32. }
+; RUN: opt < %s -globalopt -S | grep {tmp.f0 = phi i32. }
+target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
+
+ %struct.foo = type { i32, i32 }
+@X = internal global %struct.foo* null ; <%struct.foo**> [#uses=2]
+
+define void @bar(i32 %Size) nounwind noinline {
+entry:
+ %malloccall = tail call i8* @malloc(i64 8000000) ; <i8*> [#uses=1]
+ %tmp = bitcast i8* %malloccall to [1000000 x %struct.foo]* ; <[1000000 x %struct.foo]*> [#uses=1]
+ %.sub = getelementptr [1000000 x %struct.foo]* %tmp, i32 0, i32 0 ; <%struct.foo*> [#uses=1]
+ store %struct.foo* %.sub, %struct.foo** @X, align 4
+ ret void
+}
+
+declare noalias i8* @malloc(i64)
+
+define i32 @baz() nounwind readonly noinline {
+bb1.thread:
+ %tmpLD1 = load %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1]
+ br label %bb1
+
+bb1: ; preds = %bb1, %bb1.thread
+ %tmp = phi %struct.foo* [%tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ] ; <i32> [#uses=2]
+ %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
+ %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %tmp3, %bb1 ] ; <i32> [#uses=1]
+ %tmp1 = getelementptr %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 0 ; <i32*> [#uses=1]
+ %tmp2 = load i32* %tmp1, align 4 ; <i32> [#uses=1]
+ %tmp6 = add i32 %tmp2, %sum.0.reg2mem.0 ; <i32> [#uses=2]
+ %tmp4 = getelementptr %struct.foo* %tmp, i32 %i.0.reg2mem.0, i32 1 ; <i32*> [#uses=1]
+ %tmp5 = load i32 * %tmp4
+ %tmp3 = add i32 %tmp5, %tmp6
+ %indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2]
+
+ %tmpLD2 = load %struct.foo** @X, align 4 ; <%struct.foo*> [#uses=1]
+
+ %exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1]
+ br i1 %exitcond, label %bb2, label %bb1
+
+bb2: ; preds = %bb1
+ ret i32 %tmp3
+}