[LLD] [MinGW] Implement the -lto-sample-profile option (#85841)
This has been a supported option for ELF and is added to the COFF Linker
in #85701
GitOrigin-RevId: 276283d8641f13b6ecde736ab1a8720f742d9d02
diff --git a/MinGW/Driver.cpp b/MinGW/Driver.cpp
index efd643f..bb08c77 100644
--- a/MinGW/Driver.cpp
+++ b/MinGW/Driver.cpp
@@ -455,6 +455,8 @@
add("-lldemit:llvm");
if (args.hasArg(OPT_lto_emit_asm))
add("-lldemit:asm");
+ if (auto *arg = args.getLastArg(OPT_lto_sample_profile))
+ add("-lto-sample-profile:" + StringRef(arg->getValue()));
if (auto *a = args.getLastArg(OPT_thinlto_cache_dir))
add("-lldltocache:" + StringRef(a->getValue()));
diff --git a/MinGW/Options.td b/MinGW/Options.td
index 9a0a96a..56f67e3 100644
--- a/MinGW/Options.td
+++ b/MinGW/Options.td
@@ -160,6 +160,8 @@
HelpText<"Context sensitive profile file path">;
def lto_emit_asm: FF<"lto-emit-asm">,
HelpText<"Emit assembly code">;
+def lto_sample_profile: JJ<"lto-sample-profile=">,
+ HelpText<"Sample profile file path">;
def thinlto_cache_dir: JJ<"thinlto-cache-dir=">,
HelpText<"Path to ThinLTO cached object file directory">;
diff --git a/test/MinGW/driver.test b/test/MinGW/driver.test
index a4e9e5e..619fee8 100644
--- a/test/MinGW/driver.test
+++ b/test/MinGW/driver.test
@@ -422,6 +422,9 @@
RUN: ld.lld -### foo.o -m i386pe -plugin-opt=emit-llvm 2>&1 | FileCheck -check-prefix=LTO_EMIT_LLVM %s
LTO_EMIT_LLVM: -lldemit:llvm
+RUN: ld.lld -### foo.o -m i386pep --lto-sample-profile=foo 2>&1 | FileCheck -check-prefix=LTO_SAMPLE_PROFILE %s
+LTO_SAMPLE_PROFILE: -lto-sample-profile:foo
+
Test GCC specific LTO options that GCC passes unconditionally, that we ignore.
RUN: ld.lld -### foo.o -m i386pep -plugin /usr/lib/gcc/x86_64-w64-mingw32/10-posix/liblto_plugin.so -plugin-opt=/usr/lib/gcc/x86_64-w64-mingw32/10-posix/lto-wrapper -plugin-opt=-fresolution=/tmp/ccM9d4fP.res -plugin-opt=-pass-through=-lmingw32 2> /dev/null
