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-rw-r--r--test/Transforms/PGOProfile/counter_promo_exit_merge.ll74
1 files changed, 74 insertions, 0 deletions
diff --git a/test/Transforms/PGOProfile/counter_promo_exit_merge.ll b/test/Transforms/PGOProfile/counter_promo_exit_merge.ll
new file mode 100644
index 0000000000000..f53d37600ce61
--- /dev/null
+++ b/test/Transforms/PGOProfile/counter_promo_exit_merge.ll
@@ -0,0 +1,74 @@
+; RUN: opt < %s -instrprof -do-counter-promotion=true -speculative-counter-promotion -S | FileCheck --check-prefix=PROMO %s
+; RUN: opt < %s --passes=instrprof -do-counter-promotion=true -speculative-counter-promotion -S | FileCheck --check-prefix=PROMO %s
+
+$__llvm_profile_raw_version = comdat any
+
+@g = common local_unnamed_addr global i32 0, align 4
+@__llvm_profile_raw_version = constant i64 72057594037927940, comdat
+@__profn_foo = private constant [3 x i8] c"foo"
+
+define void @foo(i32 %arg) local_unnamed_addr {
+bb:
+ %tmp = add nsw i32 %arg, -1
+ br label %bb1
+
+bb1: ; preds = %bb11, %bb
+ %tmp2 = phi i32 [ 0, %bb ], [ %tmp12, %bb11 ]
+ %tmp3 = icmp sgt i32 %tmp2, %arg
+ br i1 %tmp3, label %bb7, label %bb4
+
+bb4: ; preds = %bb1
+ call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 63969943867, i32 5, i32 1)
+ tail call void @bar(i32 1)
+ %tmp5 = load i32, i32* @g, align 4
+ %tmp6 = icmp sgt i32 %tmp5, 100
+ br i1 %tmp6, label %bb14, label %bb11
+
+bb7: ; preds = %bb1
+ %tmp8 = icmp slt i32 %tmp2, %tmp
+ br i1 %tmp8, label %bb9, label %bb10
+
+bb9: ; preds = %bb7
+ call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 63969943867, i32 5, i32 2)
+ tail call void @bar(i32 2)
+ br label %bb11
+
+bb10: ; preds = %bb7
+ call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 63969943867, i32 5, i32 3)
+ tail call void @bar(i32 3)
+ br label %bb11
+
+bb11: ; preds = %bb10, %bb9, %bb4
+ %tmp12 = add nuw nsw i32 %tmp2, 1
+ %tmp13 = icmp slt i32 %tmp2, 99
+ br i1 %tmp13, label %bb1, label %bb14
+
+bb14: ; preds = %bb4.bb14_crit_edge, %bb11
+ tail call void @bar(i32 0)
+ br label %bb15
+; PROMO-LABEL: bb14:
+; PROMO: %[[MERGE1:[a-z0-9]+]] = phi {{.*}}
+; PROMO-NEXT: %[[MERGE2:[a-z0-9.]+]] = phi {{.*}}
+; PROMO-NEXT: %[[MERGE3:[a-z0-9.]+]] = phi {{.*}}
+; PROMO-NEXT: %[[PROMO3:[a-z0-9.]+]] = load{{.*}}@__profc_foo{{.*}}1)
+; PROMO-NEXT: {{.*}} = add {{.*}}%[[PROMO3]], %[[MERGE3]]
+; PROMO-NEXT: store{{.*}}@__profc_foo{{.*}}1)
+; PROMO-NEXT: %[[PROMO2:[a-z0-9.]+]] = load{{.*}}@__profc_foo{{.*}}2)
+; PROMO-NEXT: {{.*}} = add {{.*}}%[[PROMO2]], %[[MERGE2]]
+; PROMO-NEXT: store{{.*}}@__profc_foo{{.*}}2)
+; PROMO-NEXT: %[[PROMO1:[a-z0-9.]+]] = load{{.*}}@__profc_foo{{.*}}3)
+; PROMO-NEXT: {{.*}} = add {{.*}}%[[PROMO1]], %[[MERGE1]]
+; PROMO-NEXT: store{{.*}}@__profc_foo{{.*}}3)
+
+bb15: ; preds = %bb14
+ call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 63969943867, i32 5, i32 4)
+ tail call void @bar(i32 1)
+ ret void
+}
+
+declare void @bar(i32) local_unnamed_addr
+
+; Function Attrs: nounwind
+declare void @llvm.instrprof.increment(i8*, i64, i32, i32) #0
+
+attributes #0 = { nounwind }