diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll | 98 |
1 files changed, 92 insertions, 6 deletions
diff --git a/llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll b/llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll index f3950b7..b2b0a6d 100644 --- a/llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll +++ b/llvm/test/CodeGen/X86/global-variable-partition-with-dap.ll @@ -1,17 +1,101 @@ 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" target triple = "x86_64-unknown-linux-gnu" -;; A minimal test case. Subsequent PRs will expand on this test case -;; (e.g., with more functions, variables and profiles) and test the hotness -;; reconcillation implementation. +;; Requires asserts for -debug-only. +; REQUIRES: asserts + +; RUN: rm -rf %t && split-file %s %t && cd %t + +; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic \ +; RUN: -partition-static-data-sections=true \ +; RUN: -debug-only=static-data-profile-info \ +; RUN: -data-sections=true -unique-section-names=false \ +; RUN: input-with-data-access-prof-on.ll -o - 2>&1 | FileCheck %s --check-prefixes=LOG,IR + ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic \ ; RUN: -partition-static-data-sections=true \ +; RUN: -debug-only=static-data-profile-info \ ; RUN: -data-sections=true -unique-section-names=false \ -; RUN: %s -o - 2>&1 | FileCheck %s --check-prefix=IR +; RUN: input-with-data-access-prof-off.ll -o - 2>&1 | FileCheck %s --check-prefixes=OFF + +; LOG: hot_bss has section prefix hot, the max from data access profiles as hot and PGO counters as hot +; LOG: data_unknown_hotness has section prefix <empty>, the max from data access profiles as <empty> and PGO counters as unlikely +; LOG: external_relro_array has section prefix unlikely, solely from data access profiles + +; IR: .type hot_bss,@object +; IR-NEXT: .section .bss.hot.,"aw" +; IR: .type data_unknown_hotness,@object +; IR-NEXT: .section .data,"aw" +; IR: .type external_relro_array,@object +; IR-NEXT: .section .data.rel.ro.unlikely.,"aw" + + +; OFF: .type hot_bss,@object +; OFF-NEXT: .section .bss.hot.,"aw" +; OFF: .type data_unknown_hotness,@object +; OFF-NEXT: .section .data.unlikely.,"aw" +;; Global variable section prefix metadata is not used when +;; module flag `EnableDataAccessProf` is 0, and @external_relro_array has +;; external linkage, so analysis based on PGO counters doesn't apply. +; OFF: .type external_relro_array,@object # @external_relro_array +; OFF-NEXT: .section .data.rel.ro,"aw" + +;--- input-with-data-access-prof-on.ll +; Internal vars +@hot_bss = internal global i32 0, !section_prefix !17 +@data_unknown_hotness = internal global i32 1 +; External vars +@external_relro_array = constant [2 x ptr] [ptr @hot_bss, ptr @data_unknown_hotness], !section_prefix !18 + +define void @cold_func() !prof !15 { + %9 = load i32, ptr @data_unknown_hotness + %11 = call i32 (...) @func_taking_arbitrary_param(i32 %9) + ret void +} + +define void @hot_func() !prof !14 { + %9 = load i32, ptr @hot_bss + %11 = call i32 (...) @func_taking_arbitrary_param(i32 %9) + ret void +} + +declare i32 @func_taking_arbitrary_param(...) -; IR: .section .bss.hot.,"aw" +!llvm.module.flags = !{!0, !1} +!0 = !{i32 2, !"EnableDataAccessProf", i32 1} +!1 = !{i32 1, !"ProfileSummary", !2} +!2 = !{!3, !4, !5, !6, !7, !8, !9, !10} +!3 = !{!"ProfileFormat", !"InstrProf"} +!4 = !{!"TotalCount", i64 1460183} +!5 = !{!"MaxCount", i64 849024} +!6 = !{!"MaxInternalCount", i64 32769} +!7 = !{!"MaxFunctionCount", i64 849024} +!8 = !{!"NumCounts", i64 23627} +!9 = !{!"NumFunctions", i64 3271} +!10 = !{!"DetailedSummary", !11} +!11 = !{!12, !13} +!12 = !{i32 990000, i64 166, i32 73} +!13 = !{i32 999999, i64 3, i32 1443} +!14 = !{!"function_entry_count", i64 100000} +!15 = !{!"function_entry_count", i64 1} +!16 = !{!"branch_weights", i32 1, i32 99999} +!17 = !{!"section_prefix", !"hot"} +!18 = !{!"section_prefix", !"unlikely"} + +;--- input-with-data-access-prof-off.ll +; Same as file above except that module flag `EnableDataAccessProf` has value 0. +; Internal vars @hot_bss = internal global i32 0, !section_prefix !17 +@data_unknown_hotness = internal global i32 1 +; External vars +@external_relro_array = constant [2 x ptr] [ptr @hot_bss, ptr @data_unknown_hotness], !section_prefix !18 + +define void @cold_func() !prof !15 { + %9 = load i32, ptr @data_unknown_hotness + %11 = call i32 (...) @func_taking_arbitrary_param(i32 %9) + ret void +} define void @hot_func() !prof !14 { %9 = load i32, ptr @hot_bss @@ -21,8 +105,9 @@ define void @hot_func() !prof !14 { declare i32 @func_taking_arbitrary_param(...) -!llvm.module.flags = !{!1} +!llvm.module.flags = !{!0, !1} +!0 = !{i32 2, !"EnableDataAccessProf", i32 0} !1 = !{i32 1, !"ProfileSummary", !2} !2 = !{!3, !4, !5, !6, !7, !8, !9, !10} !3 = !{!"ProfileFormat", !"InstrProf"} @@ -40,3 +125,4 @@ declare i32 @func_taking_arbitrary_param(...) !15 = !{!"function_entry_count", i64 1} !16 = !{!"branch_weights", i32 1, i32 99999} !17 = !{!"section_prefix", !"hot"} +!18 = !{!"section_prefix", !"unlikely"} |