1 files changed, 56 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/gepphigep.ll b/test/Transforms/InstCombine/gepphigep.ll
new file mode 100644
index 0000000..9aab609
--- /dev/null
+++ b/test/Transforms/InstCombine/gepphigep.ll
@@ -0,0 +1,56 @@
+; RUN: opt -instcombine -S  < %s | FileCheck %s
+
+%struct1 = type { %struct2*, i32, i32, i32 }
+%struct2 = type { i32, i32 }
+
+define i32 @test1(%struct1* %dm, i1 %tmp4, i64 %tmp9, i64 %tmp19) {
+bb:
+  %tmp = getelementptr inbounds %struct1* %dm, i64 0, i32 0
+  %tmp1 = load %struct2** %tmp, align 8
+  br i1 %tmp4, label %bb1, label %bb2
+
+bb1:
+  %tmp10 = getelementptr inbounds %struct2* %tmp1, i64 %tmp9
+  %tmp11 = getelementptr inbounds %struct2* %tmp10, i64 0, i32 0
+  store i32 0, i32* %tmp11, align 4
+  br label %bb3
+
+bb2:
+  %tmp20 = getelementptr inbounds %struct2* %tmp1, i64 %tmp19
+  %tmp21 = getelementptr inbounds %struct2* %tmp20, i64 0, i32 0
+  store i32 0, i32* %tmp21, align 4
+  br label %bb3
+
+bb3:
+  %phi = phi %struct2* [ %tmp10, %bb1 ], [ %tmp20, %bb2 ]
+  %tmp24 = getelementptr inbounds %struct2* %phi, i64 0, i32 1
+  %tmp25 = load i32* %tmp24, align 4
+  ret i32 %tmp25
+
+; CHECK-LABEL: @test1(
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %tmp9, i32 0
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %tmp19, i32 0
+; CHECK: %[[PHI:[0-9A-Za-z]+]] = phi i64 [ %tmp9, %bb1 ], [ %tmp19, %bb2 ]
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %[[PHI]], i32 1
+
+}
+
+define i32 @test2(%struct1* %dm, i1 %tmp4, i64 %tmp9, i64 %tmp19) {
+bb:
+  %tmp = getelementptr inbounds %struct1* %dm, i64 0, i32 0
+  %tmp1 = load %struct2** %tmp, align 8
+  %tmp10 = getelementptr inbounds %struct2* %tmp1, i64 %tmp9
+  %tmp11 = getelementptr inbounds %struct2* %tmp10, i64 0, i32 0
+  store i32 0, i32* %tmp11, align 4
+  %tmp20 = getelementptr inbounds %struct2* %tmp1, i64 %tmp19
+  %tmp21 = getelementptr inbounds %struct2* %tmp20, i64 0, i32 0
+  store i32 0, i32* %tmp21, align 4
+  %tmp24 = getelementptr inbounds %struct2* %tmp10, i64 0, i32 1
+  %tmp25 = load i32* %tmp24, align 4
+  ret i32 %tmp25
+
+; CHECK-LABEL: @test2(
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %tmp9, i32 0
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %tmp19, i32 0
+; CHECK: getelementptr inbounds %struct2* %tmp1, i64 %tmp9, i32 1
+}