mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
b3b970744d
Imported functions and variable get the visibility from the module supplying the definition. However, non-imported definitions do not get the visibility from (ELF) the most constraining visibility among all modules (Mach-O) the visibility of the prevailing definition. This patch * adds visibility bits to GlobalValueSummary::GVFlags * computes the result visibility and propagates it to all definitions Protected/hidden can imply dso_local which can enable some optimizations (this is stronger than GVFlags::DSOLocal because the implied dso_local can be leveraged for ELF -shared while default visibility dso_local has to be cleared for ELF -shared). Note: we don't have summaries for declarations, so for ELF if a declaration has the most constraining visibility, the result visibility may not be that one. Differential Revision: https://reviews.llvm.org/D92900
68 lines
3.5 KiB
LLVM
68 lines
3.5 KiB
LLVM
; Test to check the callgraph in summary
|
|
; RUN: opt -module-summary %s -o %t.o
|
|
; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s
|
|
; RUN: opt -module-summary %p/Inputs/thinlto-alias.ll -o %t2.o
|
|
; RUN: llvm-dis -o - %t2.o | FileCheck %s --check-prefix=DIS
|
|
; Round trip it through llvm-as
|
|
; RUN: llvm-dis -o - %t2.o | llvm-as -o - | llvm-dis -o - | FileCheck %s --check-prefix=DIS
|
|
; RUN: llvm-lto -thinlto -o %t3 %t.o %t2.o
|
|
; RUN: llvm-bcanalyzer -dump %t3.thinlto.bc | FileCheck %s --check-prefix=COMBINED
|
|
; RUN: llvm-dis -o - %t3.thinlto.bc | FileCheck %s --check-prefix=COMBINED-DIS
|
|
; Round trip it through llvm-as
|
|
; RUN: llvm-dis -o - %t3.thinlto.bc | llvm-as -o - | llvm-dis -o - | FileCheck %s --check-prefix=COMBINED-DIS
|
|
|
|
; CHECK: <SOURCE_FILENAME
|
|
; "main"
|
|
; CHECK-NEXT: <FUNCTION op0=0 op1=4
|
|
; "analias"
|
|
; CHECK-NEXT: <FUNCTION op0=4 op1=7
|
|
; CHECK: <GLOBALVAL_SUMMARY_BLOCK
|
|
; CHECK-NEXT: <VERSION
|
|
; CHECK-NEXT: <FLAGS
|
|
; See if the call to func is registered.
|
|
; The value id 1 matches the second FUNCTION record above.
|
|
; CHECK-NEXT: <PERMODULE {{.*}} op7=1/>
|
|
; CHECK-NEXT: <BLOCK_COUNT op0=1/>
|
|
; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK>
|
|
|
|
; CHECK: <STRTAB_BLOCK
|
|
; CHECK-NEXT: blob data = 'mainanalias{{.*}}'
|
|
|
|
; COMBINED: <GLOBALVAL_SUMMARY_BLOCK
|
|
; COMBINED-NEXT: <VERSION
|
|
; COMBINED-NEXT: <FLAGS
|
|
; See if the call to analias is registered, using the expected value id.
|
|
; COMBINED-NEXT: <VALUE_GUID op0=[[ALIASID:[0-9]+]] op1=-5751648690987223394/>
|
|
; COMBINED-NEXT: <VALUE_GUID
|
|
; COMBINED-NEXT: <VALUE_GUID op0=[[ALIASEEID:[0-9]+]] op1=-1039159065113703048/>
|
|
; COMBINED-NEXT: <COMBINED {{.*}} op9=[[ALIASID]]/>
|
|
; COMBINED-NEXT: <COMBINED {{.*}}
|
|
; COMBINED-NEXT: <COMBINED_ALIAS {{.*}} op3=[[ALIASEEID]]
|
|
; COMBINED-NEXT: <BLOCK_COUNT op0=2/>
|
|
; COMBINED-NEXT: </GLOBALVAL_SUMMARY_BLOCK
|
|
|
|
; ModuleID = 'thinlto-function-summary-callgraph.ll'
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; Function Attrs: nounwind uwtable
|
|
define i32 @main() {
|
|
entry:
|
|
call void (...) @analias()
|
|
ret i32 0
|
|
}
|
|
|
|
declare void @analias(...)
|
|
|
|
; DIS: ^0 = module: (path: "{{.*}}", hash: (0, 0, 0, 0, 0))
|
|
; DIS: ^1 = gv: (name: "analias", summaries: (alias: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), aliasee: ^2))) ; guid = 12695095382722328222
|
|
; DIS: ^2 = gv: (name: "aliasee", summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 1))) ; guid = 17407585008595848568
|
|
; DIS: ^3 = blockcount: 1
|
|
|
|
; COMBINED-DIS: ^0 = module: (path: "{{.*}}thinlto-alias.ll.tmp.o", hash: (0, 0, 0, 0, 0))
|
|
; COMBINED-DIS: ^1 = module: (path: "{{.*}}thinlto-alias.ll.tmp2.o", hash: (0, 0, 0, 0, 0))
|
|
; COMBINED-DIS: ^2 = gv: (guid: 12695095382722328222, summaries: (alias: (module: ^1, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), aliasee: ^4)))
|
|
; COMBINED-DIS: ^3 = gv: (guid: 15822663052811949562, summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 2, calls: ((callee: ^2)))))
|
|
; COMBINED-DIS: ^4 = gv: (guid: 17407585008595848568, summaries: (function: (module: ^1, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 1)))
|
|
; COMBINED-DIS: ^5 = blockcount: 2
|