derek.holloway
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172 lines
6.6 KiB
LLVM
172 lines
6.6 KiB
LLVM
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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;; Requires asserts for -debug-only.
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; REQUIRES: asserts
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; RUN: rm -rf %t && split-file %s %t && cd %t
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic \
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; RUN: -partition-static-data-sections=true \
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; RUN: -debug-only=static-data-profile-info \
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; RUN: -data-sections=true -unique-section-names=false \
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; RUN: input-with-data-access-prof-on.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOGCOMMON,IRCOMMON,IR
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;; Repeat command above, but with string literals handled in the codegen pass,
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;; with -memprof-annotate-string-literal-section-prefix=true.
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic \
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; RUN: -partition-static-data-sections=true \
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; RUN: -debug-only=static-data-profile-info \
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; RUN: -data-sections=true -unique-section-names=false \
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; RUN: -memprof-annotate-string-literal-section-prefix=true \
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; RUN: input-with-data-access-prof-on.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOGCOMMON,LOGSTR,IRCOMMON,IRSTR
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; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic \
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; RUN: -partition-static-data-sections=true \
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; RUN: -debug-only=static-data-profile-info \
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; RUN: -data-sections=true -unique-section-names=false \
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; RUN: input-with-data-access-prof-off.ll -o - 2>&1 | FileCheck %s --check-prefixes=OFF
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; LOGCOMMON: hot_bss has section prefix hot, the max from data access profiles as hot and PGO counters as hot
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; LOGCOMMON: data_unknown_hotness has section prefix <empty>, the max from data access profiles as <empty> and PGO counters as unlikely
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; LOGSTR: .str has section prefix <empty>, the max from data access profiles as <empty> and PGO counters as unlikely
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; LOGSTR: .str.1 has section prefix hot, the max from data access profiles as unlikely and PGO counters as hot
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; LOGCOMMON: external_relro_array has section prefix unlikely, solely from data access profiles
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; LOGSTR: .str.llvm.98765 has section prefix <empty>, solely from data access profiles
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; LOGSTR: .str.2 has section prefix hot, solely from data access profiles
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; IRCOMMON: .type hot_bss,@object
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; IRCOMMON-NEXT: .section .bss.hot.,"aw"
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; IRCOMMON: .type data_unknown_hotness,@object
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; IRCOMMON-NEXT: .section .data,"aw"
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; IRSTR: .section .rodata,"a",@progbits
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; IR: .section .rodata.unlikely.,"a",@progbits
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; IRCOMMON-NEXT: .L.str:
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; IRCOMMON-NEXT: .ascii "abcde"
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; IRCOMMON: .section .rodata.hot.,"a"
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; IRCOMMON-NEXT: .str.1:
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; IRCOMMON-NEXT: .ascii "obj.a"
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; IRCOMMON: .type external_relro_array,@object
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; IRCOMMON-NEXT: .section .data.rel.ro.unlikely.,"aw"
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; IRCOMMON: .section .rodata,"a",@progbits
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; IRCOMMON-NEXT: .globl .str.llvm.98765
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; IRCOMMON-NEXT: .str.llvm.98765:
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; IRCOMMON-NEXT: .ascii "Joins"
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; IRSTR: .section .rodata.hot.,"a",@progbits
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; IR: .section .rodata,"a",@progbits
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; IRSTR-NEXT: .globl .str.2
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; IRSTR-NEXT: .str.2:
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; IRSTR-NEXT: .ascii "*ptr != nullptr"
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; OFF: .type hot_bss,@object
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; OFF-NEXT: .section .bss.hot.,"aw"
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; OFF: .type data_unknown_hotness,@object
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; OFF-NEXT: .section .data.unlikely.,"aw"
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;; Global variable section prefix metadata is not used when
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;; module flag `EnableDataAccessProf` is 0, and @external_relro_array has
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;; external linkage, so analysis based on PGO counters doesn't apply.
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; OFF: .type external_relro_array,@object # @external_relro_array
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; OFF-NEXT: .section .data.rel.ro,"aw"
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;--- input-with-data-access-prof-on.ll
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; Internal vars
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@hot_bss = internal global i32 0, !section_prefix !17
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@data_unknown_hotness = internal global i32 1
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@.str = private constant [5 x i8] c"abcde"
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@.str.1 = internal constant [5 x i8] c"obj.a", !section_prefix !18
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; External vars
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@external_relro_array = constant [2 x ptr] [ptr @hot_bss, ptr @data_unknown_hotness], !section_prefix !18
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;; <empty> -> <empty>
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@.str.llvm.98765 = constant [5 x i8] c"Joins"
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@.str.2 = constant [15 x i8] c"*ptr != nullptr", !section_prefix !17
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define void @cold_func() !prof !15 {
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%9 = load i32, ptr @data_unknown_hotness
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%11 = call i32 (...) @func_taking_arbitrary_param(i32 %9, ptr @.str)
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ret void
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}
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define void @hot_func() !prof !14 {
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%9 = load i32, ptr @hot_bss
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%11 = call i32 (...) @func_taking_arbitrary_param(i32 %9, ptr @.str.1)
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ret void
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}
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declare i32 @func_taking_arbitrary_param(...)
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!llvm.module.flags = !{!0, !1}
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!0 = !{i32 2, !"EnableDataAccessProf", i32 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", !"InstrProf"}
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!4 = !{!"TotalCount", i64 1460183}
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!5 = !{!"MaxCount", i64 849024}
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!6 = !{!"MaxInternalCount", i64 32769}
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!7 = !{!"MaxFunctionCount", i64 849024}
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!8 = !{!"NumCounts", i64 23627}
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!9 = !{!"NumFunctions", i64 3271}
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!10 = !{!"DetailedSummary", !11}
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!11 = !{!12, !13}
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!12 = !{i32 990000, i64 166, i32 73}
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!13 = !{i32 999999, i64 3, i32 1443}
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!14 = !{!"function_entry_count", i64 100000}
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!15 = !{!"function_entry_count", i64 1}
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!16 = !{!"branch_weights", i32 1, i32 99999}
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!17 = !{!"section_prefix", !"hot"}
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!18 = !{!"section_prefix", !"unlikely"}
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;--- input-with-data-access-prof-off.ll
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; Same as file above except that module flag `EnableDataAccessProf` has value 0.
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; Internal vars
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@hot_bss = internal global i32 0, !section_prefix !17
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@data_unknown_hotness = internal global i32 1
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; External vars
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@external_relro_array = constant [2 x ptr] [ptr @hot_bss, ptr @data_unknown_hotness], !section_prefix !18
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define void @cold_func() !prof !15 {
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%9 = load i32, ptr @data_unknown_hotness
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%11 = call i32 (...) @func_taking_arbitrary_param(i32 %9)
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ret void
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}
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define void @hot_func() !prof !14 {
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%9 = load i32, ptr @hot_bss
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%11 = call i32 (...) @func_taking_arbitrary_param(i32 %9)
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ret void
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}
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declare i32 @func_taking_arbitrary_param(...)
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!llvm.module.flags = !{!0, !1}
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!0 = !{i32 2, !"EnableDataAccessProf", i32 0}
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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", !"InstrProf"}
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!4 = !{!"TotalCount", i64 1460183}
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!5 = !{!"MaxCount", i64 849024}
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!6 = !{!"MaxInternalCount", i64 32769}
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!7 = !{!"MaxFunctionCount", i64 849024}
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!8 = !{!"NumCounts", i64 23627}
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!9 = !{!"NumFunctions", i64 3271}
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!10 = !{!"DetailedSummary", !11}
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!11 = !{!12, !13}
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!12 = !{i32 990000, i64 166, i32 73}
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!13 = !{i32 999999, i64 3, i32 1443}
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!14 = !{!"function_entry_count", i64 100000}
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!15 = !{!"function_entry_count", i64 1}
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!16 = !{!"branch_weights", i32 1, i32 99999}
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!17 = !{!"section_prefix", !"hot"}
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!18 = !{!"section_prefix", !"unlikely"}
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