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llvm-mirror/test/Bitcode/thinlto-function-summary-callgraph-relbf.ll

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Add testcase accidentally left out from r323460. llvm-svn: 323478
2018-01-25 23:23:52 +01:00
; Test to check the callgraph in summary
; RUN: opt -write-relbf-to-summary -module-summary %s -o %t.o
; RUN: llvm-bcanalyzer -dump %t.o | FileCheck %s
[ThinLTO] Print module summary index to assembly Summary: Implements AsmWriter support for printing the module summary index to assembly with the format discussed in the RFC "LLVM Assembly format for ThinLTO Summary". Implements just enough of the parsing support to recognize and ignore the summary entries. As agreed in the RFC thread, this will be the behavior when assembling the IR. A follow on change will implement parsing/assembling of the summary entries for use by tools that currently build the summary index from bitcode. Reviewers: dexonsmith, pcc Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits Differential Revision: https://reviews.llvm.org/D46699 llvm-svn: 333335
2018-05-26 04:34:13 +02:00
; RUN: llvm-dis -o - %t.o | FileCheck %s --check-prefix=DIS
[ThinLTO] Parse module summary index from assembly Summary: Adds assembly parsing support for the module summary index (follow on to r333335 which added the assembly writing support). I added support to llvm-as to invoke the index parsing, so that it can create either a bitcode file with a Module and a per-module index, or a combined index without a Module. I will send follow on patches soon to do the following: - add support to tools such as llvm-lto2 to parse the per-module indexes from assembly instead of bitcode when testing the thin link. - verification support. Depends on D47844 and D47842. Reviewers: pcc, dexonsmith, mehdi_amini Subscribers: inglorion, eraman, steven_wu, llvm-commits Differential Revision: https://reviews.llvm.org/D47905 llvm-svn: 335602
2018-06-26 15:56:49 +02:00
; Round trip it through llvm-as
; RUN: llvm-dis -o - %t.o | llvm-as -write-relbf-to-summary -o - | llvm-dis -o - | FileCheck %s --check-prefix=DIS
Add testcase accidentally left out from r323460. llvm-svn: 323478
2018-01-25 23:23:52 +01:00
; CHECK: <SOURCE_FILENAME
; CHECK-NEXT: <GLOBALVAR
; CHECK-NEXT: <FUNCTION
; "func"
; CHECK-NEXT: <FUNCTION op0=17 op1=4
; CHECK: <GLOBALVAL_SUMMARY_BLOCK
; CHECK-NEXT: <VERSION
[LTO] Record whether LTOUnit splitting is enabled in index Summary: Records in the module summary index whether the bitcode was compiled with the option necessary to enable splitting the LTO unit (e.g. -fsanitize=cfi, -fwhole-program-vtables, or -fsplit-lto-unit). The information is passed down to the ModuleSummaryIndex builder via a new module flag "EnableSplitLTOUnit", which is propagated onto a flag on the summary index. This is then used during the LTO link to check whether all linked summaries were built with the same value of this flag. If not, an error is issued when we detect a situation requiring whole program visibility of the class hierarchy. This is the case when both of the following conditions are met: 1) We are performing LowerTypeTests or Whole Program Devirtualization. 2) There are type tests or type checked loads in the code. Note I have also changed the ThinLTOBitcodeWriter to also gate the module splitting on the value of this flag. Reviewers: pcc Subscribers: ormris, mehdi_amini, Prazek, inglorion, eraman, steven_wu, dexonsmith, arphaman, dang, llvm-commits Differential Revision: https://reviews.llvm.org/D53890 llvm-svn: 350948
2019-01-11 19:31:57 +01:00
; CHECK-NEXT: <FLAGS
Add testcase accidentally left out from r323460. llvm-svn: 323478
2018-01-25 23:23:52 +01:00
; See if the call to func is registered.
[ThinLTO] Attempt to recommit r365188 after alignment fix llvm-svn: 365215
2019-07-05 17:25:05 +02:00
; CHECK-NEXT: <PERMODULE_RELBF {{.*}} op4=1 {{.*}} op9=256
[ThinLTO] Compute the basic block count across modules. 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
2020-05-21 22:28:24 +02:00
; CHECK-NEXT: <BLOCK_COUNT op0=1/>
Add testcase accidentally left out from r323460. llvm-svn: 323478
2018-01-25 23:23:52 +01:00
; CHECK-NEXT: </GLOBALVAL_SUMMARY_BLOCK>
; CHECK: <STRTAB_BLOCK
; CHECK-NEXT: blob data = 'undefinedglobmainfunc{{.*}}'
; 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() #0 {
entry:
call void (...) @func()
%u = load i32, i32* @undefinedglob
ret i32 %u
}
declare void @func(...) #1
@undefinedglob = external global i32
; OLD: Index {{.*}} contains 1 nodes (1 functions, 0 alias, 0 globals) and 1 edges (0 refs and 1 calls)
[ThinLTO] Print module summary index to assembly Summary: Implements AsmWriter support for printing the module summary index to assembly with the format discussed in the RFC "LLVM Assembly format for ThinLTO Summary". Implements just enough of the parsing support to recognize and ignore the summary entries. As agreed in the RFC thread, this will be the behavior when assembling the IR. A follow on change will implement parsing/assembling of the summary entries for use by tools that currently build the summary index from bitcode. Reviewers: dexonsmith, pcc Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits Differential Revision: https://reviews.llvm.org/D46699 llvm-svn: 333335
2018-05-26 04:34:13 +02:00
[ThinLTO] Parse module summary index from assembly Summary: Adds assembly parsing support for the module summary index (follow on to r333335 which added the assembly writing support). I added support to llvm-as to invoke the index parsing, so that it can create either a bitcode file with a Module and a per-module index, or a combined index without a Module. I will send follow on patches soon to do the following: - add support to tools such as llvm-lto2 to parse the per-module indexes from assembly instead of bitcode when testing the thin link. - verification support. Depends on D47844 and D47842. Reviewers: pcc, dexonsmith, mehdi_amini Subscribers: inglorion, eraman, steven_wu, llvm-commits Differential Revision: https://reviews.llvm.org/D47905 llvm-svn: 335602
2018-06-26 15:56:49 +02:00
; DIS: ^0 = module: (path: "{{.*}}", hash: (0, 0, 0, 0, 0))
[ThinLTO] Print module summary index to assembly Summary: Implements AsmWriter support for printing the module summary index to assembly with the format discussed in the RFC "LLVM Assembly format for ThinLTO Summary". Implements just enough of the parsing support to recognize and ignore the summary entries. As agreed in the RFC thread, this will be the behavior when assembling the IR. A follow on change will implement parsing/assembling of the summary entries for use by tools that currently build the summary index from bitcode. Reviewers: dexonsmith, pcc Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits Differential Revision: https://reviews.llvm.org/D46699 llvm-svn: 333335
2018-05-26 04:34:13 +02:00
; DIS: ^1 = gv: (name: "func") ; guid = 7289175272376759421
[ThinLTO] Add Visibility bits to GlobalValueSummary::GVFlags 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
2021-01-27 19:43:51 +01:00
; DIS: ^2 = gv: (name: "main", summaries: (function: (module: ^0, flags: (linkage: external, visibility: default, notEligibleToImport: 0, live: 0, dsoLocal: 0, canAutoHide: 0), insts: 3, calls: ((callee: ^1, relbf: 256)), refs: (readonly ^3)))) ; guid = 15822663052811949562
[ThinLTO] Print module summary index to assembly Summary: Implements AsmWriter support for printing the module summary index to assembly with the format discussed in the RFC "LLVM Assembly format for ThinLTO Summary". Implements just enough of the parsing support to recognize and ignore the summary entries. As agreed in the RFC thread, this will be the behavior when assembling the IR. A follow on change will implement parsing/assembling of the summary entries for use by tools that currently build the summary index from bitcode. Reviewers: dexonsmith, pcc Subscribers: inglorion, eraman, steven_wu, dblaikie, llvm-commits Differential Revision: https://reviews.llvm.org/D46699 llvm-svn: 333335
2018-05-26 04:34:13 +02:00
; DIS: ^3 = gv: (name: "undefinedglob") ; guid = 18036901804029949403
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