58 lines
1.7 KiB
LLVM
58 lines
1.7 KiB
LLVM
; RUN: opt < %s -codegenprepare -S | FileCheck %s
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target triple = "x86_64-pc-linux-gnu"
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; This tests that hot/cold functions get correct section prefix assigned
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; CHECK: hot_func{{.*}}!section_prefix ![[HOT_ID:[0-9]+]]
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; The entry is hot
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define void @hot_func() !prof !15 {
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ret void
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}
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; CHECK: hot_call_func{{.*}}!section_prefix ![[HOT_ID]]
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; The sum of 2 callsites are hot
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define void @hot_call_func() !prof !16 {
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call void @hot_func(), !prof !17
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call void @hot_func(), !prof !17
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ret void
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}
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; CHECK-NOT: normal_func{{.*}}!section_prefix
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; The sum of all callsites are neither hot or cold
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define void @normal_func() !prof !16 {
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call void @hot_func(), !prof !17
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call void @hot_func(), !prof !18
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call void @hot_func(), !prof !18
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ret void
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}
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; CHECK: cold_func{{.*}}!section_prefix ![[COLD_ID:[0-9]+]]
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; The entry and the callsite are both cold
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define void @cold_func() !prof !16 {
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call void @hot_func(), !prof !18
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ret void
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}
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; CHECK: ![[HOT_ID]] = !{!"function_section_prefix", !"hot"}
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; CHECK: ![[COLD_ID]] = !{!"function_section_prefix", !"unlikely"}
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!llvm.module.flags = !{!1}
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!1 = !{i32 1, !"ProfileSummary", !2}
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!2 = !{!3, !4, !5, !6, !7, !8, !9, !10}
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!3 = !{!"ProfileFormat", !"SampleProfile"}
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!4 = !{!"TotalCount", i64 10000}
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!5 = !{!"MaxCount", i64 1000}
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!6 = !{!"MaxInternalCount", i64 1}
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!7 = !{!"MaxFunctionCount", i64 1000}
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!8 = !{!"NumCounts", i64 3}
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!9 = !{!"NumFunctions", i64 3}
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!10 = !{!"DetailedSummary", !11}
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!11 = !{!12, !13, !14}
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!12 = !{i32 10000, i64 100, i32 1}
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!13 = !{i32 999000, i64 100, i32 1}
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!14 = !{i32 999999, i64 1, i32 2}
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!15 = !{!"function_entry_count", i64 1000}
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!16 = !{!"function_entry_count", i64 1}
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!17 = !{!"branch_weights", i32 80}
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!18 = !{!"branch_weights", i32 1}
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