Skip to content

[FatLTO] Allow -fno-fat-lto-objects to override -ffat-lto-objects #128157

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Feb 21, 2025
Merged

[FatLTO] Allow -fno-fat-lto-objects to override -ffat-lto-objects #128157

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
4d44ed8
[FatLTO] Allow -fno-fat-lto-objects to override -ffat-lto-objects
thevinster Feb 21, 2025
6336c91
format
thevinster Feb 21, 2025
7ea5fba
remove comment
thevinster Feb 21, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion clang/lib/Driver/ToolChains/CommonArgs.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -860,7 +860,8 @@ void tools::addLTOOptions(const ToolChain &ToolChain, const ArgList &Args,
const bool IsAMDGCN = Triple.isAMDGCN();
const char *Linker = Args.MakeArgString(ToolChain.GetLinkerPath());
const Driver &D = ToolChain.getDriver();
const bool IsFatLTO = Args.hasArg(options::OPT_ffat_lto_objects);
const bool IsFatLTO = Args.hasFlag(options::OPT_ffat_lto_objects,
options::OPT_fno_fat_lto_objects, false);
const bool IsUnifiedLTO = Args.hasArg(options::OPT_funified_lto);
if (llvm::sys::path::filename(Linker) != "ld.lld" &&
llvm::sys::path::stem(Linker) != "ld.lld" && !Triple.isOSOpenBSD()) {
Expand Down
2 changes: 2 additions & 0 deletions clang/test/Driver/fat-lto-objects.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,8 @@
// CHECK-CC-NOLTO-SAME: -emit-obj
// CHECK-CC-NOLTO-NOT: -ffat-lto-objects

// RUN: %clang --target=x86_64-unknown-linux-gnu -flto -ffat-lto-objects -fno-fat-lto-objects -### %s -c 2>&1 | FileCheck %s -check-prefix=CHECK-CC-NOLTO

/// We need to pass an additional flag (--fat-lto-objects) to lld when linking w/ -flto -ffat-lto-objects
/// But it should not be there when LTO is disabled w/ -fno-lto
// RUN: %clang --target=x86_64-unknown-linux-gnu --sysroot=%S/Inputs/basic_cross_linux_tree %s \
Expand Down