a7fa35a629
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
65 lines
2.5 KiB
LLVM
65 lines
2.5 KiB
LLVM
; REQUIRES: x86
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; Basic ThinLTO tests.
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; RUN: opt -thinlto-bc %s -o %t1.obj
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; RUN: opt -thinlto-bc %p/Inputs/thinlto.ll -o %t2.obj
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; RUN: opt -thinlto-bc %p/Inputs/thinlto-empty.ll -o %t3.obj
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; Ensure lld generates an index and not a binary if requested.
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; RUN: rm -f %t4.exe
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; RUN: lld-link -thinlto-index-only -entry:main %t1.obj %t2.obj -out:%t4.exe
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; RUN: llvm-bcanalyzer -dump %t1.obj.thinlto.bc | FileCheck %s --check-prefix=BACKEND1
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; RUN: llvm-bcanalyzer -dump %t2.obj.thinlto.bc | FileCheck %s --check-prefix=BACKEND2
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; RUN: not test -e %t4.exe
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; The backend index for this module contains summaries from itself and
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; Inputs/thinlto.ll, as it imports from the latter.
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; BACKEND1: <MODULE_STRTAB_BLOCK
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; BACKEND1-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.obj'
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; BACKEND1: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp{{.*}}.obj'
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; BACKEND1-NOT: <ENTRY
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; BACKEND1: </MODULE_STRTAB_BLOCK
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; BACKEND1: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND1: <VERSION
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; BACKEND1: <FLAGS
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-5300342847281564238|-2624081020897602054}}
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; BACKEND1: <VALUE_GUID op0={{1|2}} op1={{-5300342847281564238|-2624081020897602054}}
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; BACKEND1: <COMBINED
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; BACKEND1: <COMBINED
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; BACKEND1: </GLOBALVAL_SUMMARY_BLOCK
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; The backend index for Input/thinlto.ll contains summaries from itself only,
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; as it does not import anything.
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; BACKEND2: <MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <ENTRY {{.*}} record string = '{{.*}}thinlto-index-only.ll.tmp2.obj'
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; BACKEND2-NOT: <ENTRY
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; BACKEND2: </MODULE_STRTAB_BLOCK
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; BACKEND2-NEXT: <GLOBALVAL_SUMMARY_BLOCK
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; BACKEND2-NEXT: <VERSION
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; BACKEND2-NEXT: <FLAGS
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; BACKEND2-NEXT: <VALUE_GUID op0=1 op1=-5300342847281564238
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; BACKEND2-NEXT: <COMBINED
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; BACKEND2-NEXT: <BLOCK_COUNT op0=2/>
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; BACKEND2-NEXT: </GLOBALVAL_SUMMARY_BLOCK
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; Thin archive tests. Check that the module paths point to the original files.
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; RUN: rm -rf %t
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; RUN: mkdir %t
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; RUN: opt -thinlto-bc -o %t/foo.obj < %s
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; RUN: opt -thinlto-bc -o %t/bar.obj < %p/Inputs/thinlto.ll
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; RUN: llvm-ar rcsT %t5.lib %t/bar.obj %t3.obj
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; RUN: lld-link -thinlto-index-only -entry:main %t/foo.obj %t5.lib
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; RUN: llvm-dis -o - %t/foo.obj.thinlto.bc | FileCheck %s --check-prefix=THINARCHIVE
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; THINARCHIVE: ^0 = module: (path: "{{.*}}foo.obj",
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; THINARCHIVE: ^1 = module: (path: "{{.*}}bar.obj",
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.0.24215"
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declare void @g(...)
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define void @main() {
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call void (...) @g()
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ret void
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}
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