Magic-Mirror/llvm-capstone
1
0
Fork 0
mirror of https://github.com/capstone-engine/llvm-capstone.git synced 2025-04-01 12:43:47 +00:00
Code Issues Actions 5 Packages Projects Releases Wiki Activity

[LTO][ELF] Add --stats-file= option.

Browse Source 
This patch adds a StatsFile option supported by gold to lld, related patch https://reviews.llvm.org/D45531.

Reviewed By: tejohnson, MaskRay

Differential Revision: https://reviews.llvm.org/D121809
This commit is contained in:
wangliushuai 2022-03-17 11:53:44 +08:00
parent b8038a916d
commit 1c04b52b25
5 changed files with 35 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lld/ELF/Config.h
View File

@ -122,6 +122,7 @@ struct Configuration {
llvm::Optional<uint64_t> optRemarksHotnessThreshold = 0;
llvm::StringRef optRemarksPasses;
llvm::StringRef optRemarksFormat;
llvm::StringRef optStatsFilename;
llvm::StringRef progName;
llvm::StringRef printArchiveStats;
llvm::StringRef printSymbolOrder;

1
lld/ELF/Driver.cpp
View File

@ -1103,6 +1103,7 @@ static void readConfigs(opt::InputArgList &args) {
config->oFormatBinary = isOutputFormatBinary(args);
config->omagic = args.hasFlag(OPT_omagic, OPT_no_omagic, false);
config->optRemarksFilename = args.getLastArgValue(OPT_opt_remarks_filename);
config->optStatsFilename = args.getLastArgValue(OPT_opt_stats_filename);
// Parse remarks hotness threshold. Valid value is either integer or 'auto'.
if (auto *arg = args.getLastArg(OPT_opt_remarks_hotness_threshold)) {

3
lld/ELF/LTO.cpp
View File

@ -142,6 +142,9 @@ static lto::Config createConfig() {
c.RemarksHotnessThreshold = config->optRemarksHotnessThreshold;
c.RemarksFormat = std::string(config->optRemarksFormat);
// Set up output file to emit statistics.
c.StatsFile = std::string(config->optStatsFilename);
c.SampleProfile = std::string(config->ltoSampleProfile);
c.UseNewPM = config->ltoNewPassManager;
c.DebugPassManager = config->ltoDebugPassManager;

2
lld/ELF/Options.td
View File

@ -583,6 +583,8 @@ def opt_remarks_with_hotness: FF<"opt-remarks-with-hotness">,
HelpText<"Include hotness information in the optimization remarks file">;
def opt_remarks_format: Separate<["--"], "opt-remarks-format">,
HelpText<"The format used for serializing remarks (default: YAML)">;
def opt_stats_filename: JJ<"stats-file=">,
HelpText<"Filename to write statistics to">;
def save_temps: F<"save-temps">, HelpText<"Save intermediate LTO compilation results">;
def lto_basic_block_sections: JJ<"lto-basic-block-sections=">,
HelpText<"Enable basic block sections for LTO">;

28
lld/test/ELF/lto/stats-file-option.ll Normal file
View File

@ -0,0 +1,28 @@
; RUN: llvm-as -o %t.bc %s
;; Try to save statistics to file.
; RUN: ld.lld --stats-file=%t2.stats -m elf_x86_64 -r -o %t.o %t.bc
; RUN: FileCheck --input-file=%t2.stats %s
; CHECK: {
; CHECK: "asm-printer.EmittedInsts":
; CHECK: "inline.NumInlined":
; CHECK: "prologepilog.NumFuncSeen":
; CHECK: }
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
declare i32 @patatino()
define i32 @tinkywinky() {
%a = call i32 @patatino()
ret i32 %a
}
define i32 @main() !prof !0 {
%i = call i32 @tinkywinky()
ret i32 %i
}
!0 = !{!"function_entry_count", i64 300}