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9896d761e8
Summary: Count the per-module number of basic blocks when the module summary is computed and sum them up during Thin LTO indexing. This is used to estimate the working set size under the partial sample PGO. This is split off of D79831. Reviewers: davidxl, espindola Subscribers: emaste, inglorion, hiraditya, MaskRay, steven_wu, dexonsmith, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D80403
45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
; Test to check the callgraph in summary
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; RUN: opt -write-relbf-to-summary -module-summary %s -o %t.o
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; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s
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; RUN: llvm-dis -o - %t.o | FileCheck %s --check-prefix=DIS
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; Round trip it through llvm-as
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; RUN: llvm-dis -o - %t.o | llvm-as -write-relbf-to-summary -o - | llvm-dis -o - | FileCheck %s --check-prefix=DIS
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; CHECK: <SOURCE_FILENAME
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; CHECK-NEXT: <GLOBALVAR
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; CHECK-NEXT: <FUNCTION
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; "func"
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; CHECK-NEXT: <FUNCTION op0=17 op1=4
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; CHECK: <GLOBALVAL_SUMMARY_BLOCK
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; CHECK-NEXT: <VERSION
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; CHECK-NEXT: <FLAGS
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; See if the call to func is registered.
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; CHECK-NEXT: <PERMODULE_RELBF {{.*}} op4=1 {{.*}} op9=256
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; CHECK-NEXT: <BLOCK_COUNT op0=1/>
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; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK>
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; CHECK: <STRTAB_BLOCK
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; CHECK-NEXT: blob data = 'undefinedglobmainfunc{{.*}}'
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; ModuleID = 'thinlto-function-summary-callgraph.ll'
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define i32 @main() #0 {
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entry:
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call void (...) @func()
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%u = load i32, i32* @undefinedglob
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ret i32 %u
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}
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declare void @func(...) #1
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@undefinedglob = external global i32
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; OLD: Index {{.*}} contains 1 nodes (1 functions, 0 alias, 0 globals) and 1 edges (0 refs and 1 calls)
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; DIS: ^0 = module: (path: "{{.*}}", hash: (0, 0, 0, 0, 0))
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; DIS: ^1 = gv: (name: "func") ; guid = 7289175272376759421
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; DIS: ^2 = gv: (name: "main", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 3, calls: ((callee: ^1, relbf: 256)), refs: (readonly ^3)))) ; guid = 15822663052811949562
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; DIS: ^3 = gv: (name: "undefinedglob") ; guid = 18036901804029949403
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