1 files changed, 52 insertions, 0 deletions
diff --git a/test/Transforms/Inline/inline-hot-callsite.ll b/test/Transforms/Inline/inline-hot-callsite.ll
new file mode 100644
index 000000000000..36d9407142e1
--- /dev/null
+++ b/test/Transforms/Inline/inline-hot-callsite.ll
@@ -0,0 +1,52 @@
+; RUN: opt < %s -inline -inline-threshold=0 -inlinehint-threshold=100 -S | FileCheck %s
+
+; This tests that a hot callsite gets the (higher) inlinehint-threshold even without
+; without inline hints and gets inlined because the cost is less than
+; inlinehint-threshold. A cold callee with identical body does not get inlined because
+; cost exceeds the inline-threshold
+
+define i32 @callee1(i32 %x) {
+  %x1 = add i32 %x, 1
+  %x2 = add i32 %x1, 1
+  %x3 = add i32 %x2, 1
+
+  ret i32 %x3
+}
+
+define i32 @callee2(i32 %x) {
+; CHECK-LABEL: @callee2(
+  %x1 = add i32 %x, 1
+  %x2 = add i32 %x1, 1
+  %x3 = add i32 %x2, 1
+
+  ret i32 %x3
+}
+
+define i32 @caller2(i32 %y1) {
+; CHECK-LABEL: @caller2(
+; CHECK: call i32 @callee2
+; CHECK-NOT: call i32 @callee1
+; CHECK: ret i32 %x3.i
+  %y2 = call i32 @callee2(i32 %y1), !prof !22
+  %y3 = call i32 @callee1(i32 %y2), !prof !21
+  ret i32 %y3
+}
+
+!llvm.module.flags = !{!1}
+!21 = !{!"branch_weights", i64 300}
+!22 = !{!"branch_weights", i64 1}
+
+!1 = !{i32 1, !"ProfileSummary", !2}
+!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
+!3 = !{!"ProfileFormat", !"InstrProf"}
+!4 = !{!"TotalCount", i64 10000}
+!5 = !{!"MaxCount", i64 1000}
+!6 = !{!"MaxInternalCount", i64 1}
+!7 = !{!"MaxFunctionCount", i64 1000}
+!8 = !{!"NumCounts", i64 3}
+!9 = !{!"NumFunctions", i64 3}
+!10 = !{!"DetailedSummary", !11}
+!11 = !{!12, !13, !14}
+!12 = !{i32 10000, i64 100, i32 1}
+!13 = !{i32 999000, i64 100, i32 1}
+!14 = !{i32 999999, i64 1, i32 2}