1; RUN: opt < %s -codegenprepare -S | FileCheck %s 2 3target 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 9define 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 15define 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 23define 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 32define 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