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[LLD][ELF][NewPM] Add option to force legacy PM 

In preparation for the NPM switch.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D92417
This commit is contained in:
Arthur Eubanks 2020-12-01 11:51:04 -08:00
parent 6b043ecdb7
commit 99d82412f8
3 changed files with 11 additions and 7 deletions
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3
lld/ELF/Driver.cpp
View File

@ -988,7 +988,8 @@ static void readConfigs(opt::InputArgList &args) {
config->ltoCSProfileFile = args.getLastArgValue(OPT_lto_cs_profile_file);
config->ltoDebugPassManager = args.hasArg(OPT_lto_debug_pass_manager);
config->ltoEmitAsm = args.hasArg(OPT_lto_emit_asm);
config->ltoNewPassManager = args.hasArg(OPT_lto_new_pass_manager);
config->ltoNewPassManager = args.hasFlag(OPT_lto_new_pass_manager,
OPT_no_lto_new_pass_manager, false);
config->ltoNewPmPasses = args.getLastArgValue(OPT_lto_newpm_passes);
config->ltoWholeProgramVisibility =
args.hasFlag(OPT_lto_whole_program_visibility,

5
lld/ELF/Options.td
View File

@ -526,8 +526,9 @@ def lto_debug_pass_manager: FF<"lto-debug-pass-manager">,
HelpText<"Debug new pass manager">;
def lto_emit_asm: FF<"lto-emit-asm">,
HelpText<"Emit assembly code">;
def lto_new_pass_manager: FF<"lto-new-pass-manager">,
HelpText<"Use new pass manager">;
defm lto_new_pass_manager: BB<"lto-new-pass-manager",
"Use new pass manager",
"Use legacy pass manager">;
def lto_newpm_passes: JJ<"lto-newpm-passes=">,
HelpText<"Passes to run during LTO">;
def lto_O: JJ<"lto-O">, MetaVarName<"<opt-level>">,

10
lld/test/ELF/lto/new-pass-manager.ll
View File

@ -2,13 +2,15 @@
; RUN: opt -module-summary %s -o %t.o
; Test new-pass-manager and debug-pass-manager option
; RUN: ld.lld --plugin-opt=new-pass-manager --plugin-opt=debug-pass-manager -o %t2.o %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --plugin-opt=new-pass-manager --lto-debug-pass-manager -o %t2.o %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --lto-new-pass-manager --plugin-opt=debug-pass-manager -o %t2.o %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --lto-new-pass-manager --lto-debug-pass-manager -o %t2.o %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --plugin-opt=new-pass-manager --plugin-opt=debug-pass-manager -o /dev/null %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --plugin-opt=new-pass-manager --lto-debug-pass-manager -o /dev/null %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --lto-new-pass-manager --plugin-opt=debug-pass-manager -o /dev/null %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --lto-new-pass-manager --lto-debug-pass-manager -o /dev/null %t.o 2>&1 | FileCheck %s
; RUN: ld.lld --lto-new-pass-manager --no-lto-new-pass-manager --lto-debug-pass-manager -o /dev/null %t.o 2>&1 | FileCheck %s --check-prefix=LEGACY
; CHECK: Starting llvm::Module pass manager run
; CHECK: Finished llvm::Module pass manager run
; LEGACY-NOT: Starting llvm::Module pass manager run
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"