[PartialInlining] Shrinkwrap allocas with live range contained in outline region.
Differential Revision: http://reviews.llvm.org/D33618
llvm-svn: 304245
diff --git a/llvm/test/Transforms/CodeExtractor/PartialInlineAlloca.ll b/llvm/test/Transforms/CodeExtractor/PartialInlineAlloca.ll
new file mode 100644
index 0000000..48db0b6
--- /dev/null
+++ b/llvm/test/Transforms/CodeExtractor/PartialInlineAlloca.ll
@@ -0,0 +1,68 @@
+
+; RUN: opt < %s -partial-inliner -skip-partial-inlining-cost-analysis -S | FileCheck %s
+ ; RUN: opt < %s -passes=partial-inliner -skip-partial-inlining-cost-analysis -S | FileCheck %s
+
+%"class.base" = type { %"struct.base"* }
+%"struct.base" = type opaque
+
+@g = external local_unnamed_addr global i32, align 4
+
+; Function Attrs: nounwind uwtable
+define i32 @callee_sinkable_bitcast(i32 %arg) local_unnamed_addr #0 {
+; CHECK-LABEL:define{{.*}}@callee_sinkable_bitcast.{{[0-9]}}
+; CHECK: alloca
+; CHECK-NEXT: bitcast
+; CHECK: call void @llvm.lifetime
+bb:
+ %tmp = alloca %"class.base", align 4
+ %tmp1 = bitcast %"class.base"* %tmp to i8*
+ %tmp2 = load i32, i32* @g, align 4, !tbaa !2
+ %tmp3 = add nsw i32 %tmp2, 1
+ %tmp4 = icmp slt i32 %arg, 0
+ br i1 %tmp4, label %bb6, label %bb5
+
+bb5: ; preds = %bb
+ call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %tmp1) #2
+ %tmp11 = bitcast %"class.base"* %tmp to i32*
+ store i32 %tmp3, i32* %tmp11, align 4, !tbaa !2
+ store i32 %tmp3, i32* @g, align 4, !tbaa !2
+ call void @bar(i32* nonnull %tmp11) #2
+ call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %tmp1) #2
+ br label %bb6
+
+bb6: ; preds = %bb5, %bb
+ %tmp7 = phi i32 [ 1, %bb5 ], [ 0, %bb ]
+ ret i32 %tmp7
+}
+
+declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
+
+declare void @bar(i32*) local_unnamed_addr #2
+declare void @bar2(i32*, i32*) local_unnamed_addr #1
+
+
+; Function Attrs: argmemonly nounwind
+declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
+
+; Function Attrs: nounwind uwtable
+define i32 @caller(i32 %arg) local_unnamed_addr #0 {
+bb:
+ %tmp = tail call i32 @callee_sinkable_bitcast(i32 %arg)
+ ret i32 %tmp
+}
+
+attributes #0 = { nounwind uwtable}
+attributes #1 = { argmemonly nounwind }
+attributes #2 = { nounwind }
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"wchar_size", i32 4}
+!1 = !{!"clang version 5.0.0 (trunk 303574)"}
+!2 = !{!3, !3, i64 0}
+!3 = !{!"int", !4, i64 0}
+!4 = !{!"omnipotent char", !5, i64 0}
+!5 = !{!"Simple C/C++ TBAA"}
+
+