| ; RUN: opt < %s -codegenprepare -S | FileCheck %s |
| |
| target triple = "x86_64-pc-linux-gnu" |
| |
| ; This tests that hot/cold functions get correct section prefix assigned |
| |
| ; CHECK: hot_func{{.*}}!section_prefix ![[HOT_ID:[0-9]+]] |
| ; The entry is hot |
| define void @hot_func() !prof !15 { |
| ret void |
| } |
| |
| ; CHECK: hot_call_func{{.*}}!section_prefix ![[HOT_ID]] |
| ; The sum of 2 callsites are hot |
| define void @hot_call_func() !prof !16 { |
| call void @hot_func(), !prof !17 |
| call void @hot_func(), !prof !17 |
| ret void |
| } |
| |
| ; CHECK-NOT: normal_func{{.*}}!section_prefix |
| ; The sum of all callsites are neither hot or cold |
| define void @normal_func() !prof !16 { |
| call void @hot_func(), !prof !17 |
| call void @hot_func(), !prof !18 |
| call void @hot_func(), !prof !18 |
| ret void |
| } |
| |
| ; CHECK: cold_func{{.*}}!section_prefix ![[COLD_ID:[0-9]+]] |
| ; The entry and the callsite are both cold |
| define void @cold_func() !prof !16 { |
| call void @hot_func(), !prof !18 |
| ret void |
| } |
| |
| ; CHECK: ![[HOT_ID]] = !{!"function_section_prefix", !"hot"} |
| ; CHECK: ![[COLD_ID]] = !{!"function_section_prefix", !"unlikely"} |
| !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 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} |
| !15 = !{!"function_entry_count", i64 1000} |
| !16 = !{!"function_entry_count", i64 1} |
| !17 = !{!"branch_weights", i32 80} |
| !18 = !{!"branch_weights", i32 1} |