1 ; RUN: opt < %s -codegenprepare -S | FileCheck %s 2 3 target triple = "x86_64-pc-linux-gnu" 4 5 ; This tests that hot/cold functions get correct section prefix assigned 6 7 ; CHECK: hot_func{{.*}}!section_prefix ![[HOT_ID:[0-9]+]] 8 ; The entry is hot 9 define void @hot_func() !prof !15 { 10 ret void 11 } 12 13 ; CHECK: hot_call_func{{.*}}!section_prefix ![[HOT_ID]] 14 ; The sum of 2 callsites are hot 15 define void @hot_call_func() !prof !16 { 16 call void @hot_func(), !prof !17 17 call void @hot_func(), !prof !17 18 ret void 19 } 20 21 ; CHECK-NOT: normal_func{{.*}}!section_prefix 22 ; The sum of all callsites are neither hot or cold 23 define void @normal_func() !prof !16 { 24 call void @hot_func(), !prof !17 25 call void @hot_func(), !prof !18 26 call void @hot_func(), !prof !18 27 ret void 28 } 29 30 ; CHECK: cold_func{{.*}}!section_prefix ![[COLD_ID:[0-9]+]] 31 ; The entry and the callsite are both cold 32 define void @cold_func() !prof !16 { 33 call void @hot_func(), !prof !18 34 ret void 35 } 36 37 ; CHECK: ![[HOT_ID]] = !{!"function_section_prefix", !".hot"} 38 ; CHECK: ![[COLD_ID]] = !{!"function_section_prefix", !".unlikely"} 39 !llvm.module.flags = !{!1} 40 !1 = !{i32 1, !"ProfileSummary", !2} 41 !2 = !{!3, !4, !5, !6, !7, !8, !9, !10} 42 !3 = !{!"ProfileFormat", !"SampleProfile"} 43 !4 = !{!"TotalCount", i64 10000} 44 !5 = !{!"MaxCount", i64 1000} 45 !6 = !{!"MaxInternalCount", i64 1} 46 !7 = !{!"MaxFunctionCount", i64 1000} 47 !8 = !{!"NumCounts", i64 3} 48 !9 = !{!"NumFunctions", i64 3} 49 !10 = !{!"DetailedSummary", !11} 50 !11 = !{!12, !13, !14} 51 !12 = !{i32 10000, i64 100, i32 1} 52 !13 = !{i32 999000, i64 100, i32 1} 53 !14 = !{i32 999999, i64 1, i32 2} 54 !15 = !{!"function_entry_count", i64 1000} 55 !16 = !{!"function_entry_count", i64 1} 56 !17 = !{!"branch_weights", i32 80} 57 !18 = !{!"branch_weights", i32 1} 58
