[lld] b4d2e50 - [LLVM] Use `reportFatalUsageError` for LTO usage errors (#140955)
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Wed May 21 15:22:03 PDT 2025
Author: bd1976bris
Date: 2025-05-21T23:21:59+01:00
New Revision: b4d2e502e06fb96a124ef4c99668531a4c6abd3d
URL: https://github.com/llvm/llvm-project/commit/b4d2e502e06fb96a124ef4c99668531a4c6abd3d
DIFF: https://github.com/llvm/llvm-project/commit/b4d2e502e06fb96a124ef4c99668531a4c6abd3d.diff
LOG: [LLVM] Use `reportFatalUsageError` for LTO usage errors (#140955)
Usage errors in `LTOBackend.cpp` were previously, misleadingly, reported
as internal crashes.
This PR updates `LTOBackend.cpp` to use `reportFatalUsageError` for
reporting usage-related issues.
LLVM Issue: https://github.com/llvm/llvm-project/issues/140953
Internal Tracker: TOOLCHAIN-17744
Added:
Modified:
lld/test/COFF/lto-cache-errors.ll
lld/test/ELF/lto/ltopasses-custom.ll
llvm/lib/LTO/LTOBackend.cpp
llvm/test/tools/llvm-lto2/X86/pipeline.ll
Removed:
################################################################################
diff --git a/lld/test/COFF/lto-cache-errors.ll b/lld/test/COFF/lto-cache-errors.ll
index a46190a81b623..44719e239d989 100644
--- a/lld/test/COFF/lto-cache-errors.ll
+++ b/lld/test/COFF/lto-cache-errors.ll
@@ -7,8 +7,8 @@
; RUN: rm -Rf %t.cache && mkdir %t.cache
; RUN: chmod 444 %t.cache
-;; Check emit warnings when we can't create the cache dir
-; RUN: not --crash lld-link /lldltocache:%t.cache/nonexistant/ /out:%t3 /entry:main %t2.o %t.o 2>&1 | FileCheck %s
+;; Check fatal usage error emitted when the cache dir can't be created.
+; RUN: not lld-link /lldltocache:%t.cache/nonexistant/ /out:%t3 /entry:main %t2.o %t.o 2>&1 | FileCheck %s
; CHECK: LLVM ERROR: can't create cache directory {{.*}}/nonexistant/: Permission denied
target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
diff --git a/lld/test/ELF/lto/ltopasses-custom.ll b/lld/test/ELF/lto/ltopasses-custom.ll
index e37083ca8b8c7..da4a2d517f8e8 100644
--- a/lld/test/ELF/lto/ltopasses-custom.ll
+++ b/lld/test/ELF/lto/ltopasses-custom.ll
@@ -24,13 +24,13 @@ define void @barrier() {
; ATOMIC-NEXT: ret void
; Check that invalid passes are rejected gracefully.
-; RUN: env LLD_IN_TEST=1 not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
+; RUN: env LLD_IN_TEST=1 not ld.lld -m elf_x86_64 %t.o -o /dev/null \
; RUN: --lto-newpm-passes=iamnotapass -shared 2>&1 | \
; RUN: FileCheck %s --check-prefix=INVALID
; INVALID: unable to parse pass pipeline description 'iamnotapass': unknown pass name 'iamnotapass'
; Check that invalid AA pipelines are rejected gracefully.
-; RUN: env LLD_IN_TEST=1 not --crash ld.lld -m elf_x86_64 %t.o -o /dev/null \
+; RUN: env LLD_IN_TEST=1 not ld.lld -m elf_x86_64 %t.o -o /dev/null \
; RUN: --lto-newpm-passes=globaldce --lto-aa-pipeline=patatino \
; RUN: -shared 2>&1 | \
; RUN: FileCheck %s --check-prefix=INVALIDAA
diff --git a/llvm/lib/LTO/LTOBackend.cpp b/llvm/lib/LTO/LTOBackend.cpp
index b7db70b99bcbc..fcf8bafc2ea9f 100644
--- a/llvm/lib/LTO/LTOBackend.cpp
+++ b/llvm/lib/LTO/LTOBackend.cpp
@@ -290,8 +290,8 @@ static void runNewPMPasses(const Config &Conf, Module &Mod, TargetMachine *TM,
if (!Conf.AAPipeline.empty()) {
AAManager AA;
if (auto Err = PB.parseAAPipeline(AA, Conf.AAPipeline)) {
- report_fatal_error(Twine("unable to parse AA pipeline description '") +
- Conf.AAPipeline + "': " + toString(std::move(Err)));
+ reportFatalUsageError(Twine("unable to parse AA pipeline description '") +
+ Conf.AAPipeline + "': " + toString(std::move(Err)));
}
// Register the AA manager first so that our version is the one used.
FAM.registerPass([&] { return std::move(AA); });
@@ -331,8 +331,9 @@ static void runNewPMPasses(const Config &Conf, Module &Mod, TargetMachine *TM,
// Parse a custom pipeline if asked to.
if (!Conf.OptPipeline.empty()) {
if (auto Err = PB.parsePassPipeline(MPM, Conf.OptPipeline)) {
- report_fatal_error(Twine("unable to parse pass pipeline description '") +
- Conf.OptPipeline + "': " + toString(std::move(Err)));
+ reportFatalUsageError(
+ Twine("unable to parse pass pipeline description '") +
+ Conf.OptPipeline + "': " + toString(std::move(Err)));
}
} else if (IsThinLTO) {
MPM.addPass(PB.buildThinLTODefaultPipeline(OL, ImportSummary));
@@ -415,8 +416,8 @@ static void codegen(const Config &Conf, TargetMachine *TM,
if (!Conf.DwoDir.empty()) {
std::error_code EC;
if (auto EC = llvm::sys::fs::create_directories(Conf.DwoDir))
- report_fatal_error(Twine("Failed to create directory ") + Conf.DwoDir +
- ": " + EC.message());
+ reportFatalUsageError(Twine("Failed to create directory ") + Conf.DwoDir +
+ ": " + EC.message());
DwoFile = Conf.DwoDir;
sys::path::append(DwoFile, std::to_string(Task) + ".dwo");
@@ -428,14 +429,14 @@ static void codegen(const Config &Conf, TargetMachine *TM,
std::error_code EC;
DwoOut = std::make_unique<ToolOutputFile>(DwoFile, EC, sys::fs::OF_None);
if (EC)
- report_fatal_error(Twine("Failed to open ") + DwoFile + ": " +
- EC.message());
+ reportFatalUsageError(Twine("Failed to open ") + DwoFile + ": " +
+ EC.message());
}
Expected<std::unique_ptr<CachedFileStream>> StreamOrErr =
AddStream(Task, Mod.getModuleIdentifier());
if (Error Err = StreamOrErr.takeError())
- report_fatal_error(std::move(Err));
+ reportFatalUsageError(std::move(Err));
std::unique_ptr<CachedFileStream> &Stream = *StreamOrErr;
TM->Options.ObjectFilenameForDebug = Stream->ObjectPathName;
diff --git a/llvm/test/tools/llvm-lto2/X86/pipeline.ll b/llvm/test/tools/llvm-lto2/X86/pipeline.ll
index 93f30d0ee61bc..9416ac5fd9fff 100644
--- a/llvm/test/tools/llvm-lto2/X86/pipeline.ll
+++ b/llvm/test/tools/llvm-lto2/X86/pipeline.ll
@@ -28,13 +28,13 @@ define void @patatino() {
; CUSTOM-NEXT: }
; Check that invalid pipelines are caught as errors.
-; RUN: not --crash llvm-lto2 run %t1.bc -o %t.o \
+; RUN: not llvm-lto2 run %t1.bc -o %t.o \
; RUN: -r %t1.bc,patatino,px -opt-pipeline foogoo 2>&1 | \
; RUN: FileCheck %s --check-prefix=ERR
; ERR: LLVM ERROR: unable to parse pass pipeline description 'foogoo': unknown pass name 'foogoo'
-; RUN: not --crash llvm-lto2 run %t1.bc -o %t.o \
+; RUN: not llvm-lto2 run %t1.bc -o %t.o \
; RUN: -r %t1.bc,patatino,px -aa-pipeline patatino \
; RUN: -opt-pipeline lower-atomic 2>&1 | \
; RUN: FileCheck %s --check-prefix=AAERR
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