1 files changed, 60 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Inline/prof-update-sample.ll b/llvm/test/Transforms/Inline/prof-update-sample.ll
new file mode 100644
index 00000000000..4a4471e8e17
--- /dev/null
+++ b/llvm/test/Transforms/Inline/prof-update-sample.ll
@@ -0,0 +1,60 @@
+; RUN: opt < %s -inline -S | FileCheck %s
+; Checks if inliner updates branch_weights annotation for call instructions.
+
+declare void @ext();
+declare void @ext1();
+@func = global void ()* null
+
+; CHECK: define void @callee(i32 %n) !prof ![[ENTRY_COUNT:[0-9]*]]
+define void  @callee(i32 %n) !prof !15 {
+  %cond = icmp sle i32 %n, 10
+  br i1 %cond, label %cond_true, label %cond_false
+cond_true:
+; ext1 is optimized away, thus not updated.
+; CHECK: call void @ext1(), !prof ![[COUNT_CALLEE1:[0-9]*]]
+  call void @ext1(), !prof !16
+  ret void
+cond_false:
+; ext is cloned and updated.
+; CHECK: call void @ext(), !prof ![[COUNT_CALLEE:[0-9]*]]
+  call void @ext(), !prof !16
+  %f = load void ()*, void ()** @func
+; CHECK: call void %f(), !prof ![[COUNT_IND_CALLEE:[0-9]*]] 
+  call void %f(), !prof !18
+  ret void
+}
+
+; CHECK: define void @caller()
+define void @caller() {
+; CHECK: call void @ext(), !prof ![[COUNT_CALLER:[0-9]*]]
+; CHECK: call void %f.i(), !prof ![[COUNT_IND_CALLER:[0-9]*]]
+  call void @callee(i32 15), !prof !17
+  ret void
+}
+
+!llvm.module.flags = !{!1}
+!1 = !{i32 1, !"ProfileSummary", !2}
+!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
+!3 = !{!"ProfileFormat", !"SampleProfile"}
+!4 = !{!"TotalCount", i64 10000}
+!5 = !{!"MaxCount", i64 10}
+!6 = !{!"MaxInternalCount", i64 1}
+!7 = !{!"MaxFunctionCount", i64 2000}
+!8 = !{!"NumCounts", i64 2}
+!9 = !{!"NumFunctions", i64 2}
+!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}
+!15 = !{!"function_entry_count", i64 1000}
+!16 = !{!"branch_weights", i64 2000}
+!17 = !{!"branch_weights", i64 400}
+!18 = !{!"VP", i32 0, i64 140, i64 111, i64 80, i64 222, i64 40, i64 333, i64 20}
+attributes #0 = { alwaysinline }
+; CHECK: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 600}
+; CHECK: ![[COUNT_CALLEE1]] = !{!"branch_weights", i64 2000}
+; CHECK: ![[COUNT_CALLEE]] = !{!"branch_weights", i64 1200}
+; CHECK: ![[COUNT_IND_CALLEE]] = !{!"VP", i32 0, i64 84, i64 111, i64 48, i64 222, i64 24, i64 333, i64 12}
+; CHECK: ![[COUNT_CALLER]] = !{!"branch_weights", i64 800}
+; CHECK: ![[COUNT_IND_CALLER]] = !{!"VP", i32 0, i64 56, i64 111, i64 32, i64 222, i64 16, i64 333, i64 8}