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      1 ; For SamplePGO, if -profile-sample-accurate is specified, cold callsite
      2 ; heuristics should be honored if the caller has no profile.
      3 
      4 ; RUN: opt < %s -inline -S -inline-cold-callsite-threshold=0 | FileCheck %s
      5 
      6 define i32 @callee(i32 %x) {
      7   %x1 = add i32 %x, 1
      8   %x2 = add i32 %x1, 1
      9   %x3 = add i32 %x2, 1
     10   call void @extern()
     11   call void @extern()
     12   ret i32 %x3
     13 }
     14 
     15 define i32 @caller(i32 %y1) {
     16 ; CHECK-LABEL: @caller
     17 ; CHECK-NOT: call i32 @callee
     18   %y2 = call i32 @callee(i32 %y1)
     19   ret i32 %y2
     20 }
     21 
     22 define i32 @caller_accurate(i32 %y1) #0 {
     23 ; CHECK-LABEL: @caller_accurate
     24 ; CHECK: call i32 @callee
     25   %y2 = call i32 @callee(i32 %y1)
     26   ret i32 %y2
     27 }
     28 
     29 declare void @extern()
     30 
     31 attributes #0 = { "profile-sample-accurate" }
     32 
     33 !llvm.module.flags = !{!1}
     34 !1 = !{i32 1, !"ProfileSummary", !2}
     35 !2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
     36 !3 = !{!"ProfileFormat", !"SampleProfile"}
     37 !4 = !{!"TotalCount", i64 10000}
     38 !5 = !{!"MaxCount", i64 1000}
     39 !6 = !{!"MaxInternalCount", i64 1}
     40 !7 = !{!"MaxFunctionCount", i64 1000}
     41 !8 = !{!"NumCounts", i64 3}
     42 !9 = !{!"NumFunctions", i64 3}
     43 !10 = !{!"DetailedSummary", !11}
     44 !11 = !{!12, !13, !14}
     45 !12 = !{i32 10000, i64 100, i32 1}
     46 !13 = !{i32 999000, i64 100, i32 1}
     47 !14 = !{i32 999999, i64 1, i32 2}
     48