1 files changed, 63 insertions, 0 deletions
diff --git a/test/Transforms/Inline/inline_cleanup.ll b/test/Transforms/Inline/inline_cleanup.ll
new file mode 100644
index 0000000000000..89b3a8283c065
--- /dev/null
+++ b/test/Transforms/Inline/inline_cleanup.ll
@@ -0,0 +1,63 @@
+; Test that the inliner doesn't leave around dead allocas, and that it folds
+; uncond branches away after it is done specializing.
+
+; RUN: llvm-as < %s | opt -inline | llvm-dis | \
+; RUN:    not grep {alloca.*uses=0}
+; RUN: llvm-as < %s | opt -inline | llvm-dis | \
+; RUN:    not grep {br label}
+@A = weak global i32 0		; <i32*> [#uses=1]
+@B = weak global i32 0		; <i32*> [#uses=1]
+@C = weak global i32 0		; <i32*> [#uses=1]
+
+define internal fastcc void @foo(i32 %X) {
+entry:
+	%ALL = alloca i32, align 4		; <i32*> [#uses=1]
+	%tmp1 = and i32 %X, 1		; <i32> [#uses=1]
+	%tmp1.upgrd.1 = icmp eq i32 %tmp1, 0		; <i1> [#uses=1]
+	br i1 %tmp1.upgrd.1, label %cond_next, label %cond_true
+
+cond_true:		; preds = %entry
+	store i32 1, i32* @A
+	br label %cond_next
+
+cond_next:		; preds = %cond_true, %entry
+	%tmp4 = and i32 %X, 2		; <i32> [#uses=1]
+	%tmp4.upgrd.2 = icmp eq i32 %tmp4, 0		; <i1> [#uses=1]
+	br i1 %tmp4.upgrd.2, label %cond_next7, label %cond_true5
+
+cond_true5:		; preds = %cond_next
+	store i32 1, i32* @B
+	br label %cond_next7
+
+cond_next7:		; preds = %cond_true5, %cond_next
+	%tmp10 = and i32 %X, 4		; <i32> [#uses=1]
+	%tmp10.upgrd.3 = icmp eq i32 %tmp10, 0		; <i1> [#uses=1]
+	br i1 %tmp10.upgrd.3, label %cond_next13, label %cond_true11
+
+cond_true11:		; preds = %cond_next7
+	store i32 1, i32* @C
+	br label %cond_next13
+
+cond_next13:		; preds = %cond_true11, %cond_next7
+	%tmp16 = and i32 %X, 8		; <i32> [#uses=1]
+	%tmp16.upgrd.4 = icmp eq i32 %tmp16, 0		; <i1> [#uses=1]
+	br i1 %tmp16.upgrd.4, label %UnifiedReturnBlock, label %cond_true17
+
+cond_true17:		; preds = %cond_next13
+	call void @ext( i32* %ALL )
+	ret void
+
+UnifiedReturnBlock:		; preds = %cond_next13
+	ret void
+}
+
+declare void @ext(i32*)
+
+define void @test() {
+entry:
+	tail call fastcc void @foo( i32 1 )
+	tail call fastcc void @foo( i32 2 )
+	tail call fastcc void @foo( i32 3 )
+	tail call fastcc void @foo( i32 8 )
+	ret void
+}