[LLD] [MinGW] Implement the --lto-emit-asm and -plugin-opt=emit-llvm options (#81475)
These were implemented in the COFF linker in
3923e61b96cf90123762f0e0381504efaba2d77a and
d12b99a4313816cf99e97cb5f579e2d51ba72b0b.
This matches the corresponding options in the ELF linker.
GitOrigin-RevId: d033366bd2189e33343ca93d276b40341dc39770
diff --git a/MinGW/Driver.cpp b/MinGW/Driver.cpp
index 290eeca..efd643f 100644
--- a/MinGW/Driver.cpp
+++ b/MinGW/Driver.cpp
@@ -451,6 +451,10 @@
add("-lto-cs-profile-generate");
if (auto *arg = args.getLastArg(OPT_lto_cs_profile_file))
add("-lto-cs-profile-file:" + StringRef(arg->getValue()));
+ if (args.hasArg(OPT_plugin_opt_emit_llvm))
+ add("-lldemit:llvm");
+ if (args.hasArg(OPT_lto_emit_asm))
+ add("-lldemit:asm");
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 02f00f2..9a0a96a 100644
--- a/MinGW/Options.td
+++ b/MinGW/Options.td
@@ -158,6 +158,8 @@
HelpText<"Perform context sensitive PGO instrumentation">;
def lto_cs_profile_file: JJ<"lto-cs-profile-file=">,
HelpText<"Context sensitive profile file path">;
+def lto_emit_asm: FF<"lto-emit-asm">,
+ HelpText<"Emit assembly code">;
def thinlto_cache_dir: JJ<"thinlto-cache-dir=">,
HelpText<"Path to ThinLTO cached object file directory">;
@@ -181,6 +183,9 @@
Alias<lto_cs_profile_file>, HelpText<"Alias for --lto-cs-profile-file">;
def plugin_opt_dwo_dir_eq: J<"plugin-opt=dwo_dir=">,
HelpText<"Directory to store .dwo files when LTO and debug fission are used">;
+def plugin_opt_emit_asm: F<"plugin-opt=emit-asm">,
+ Alias<lto_emit_asm>, HelpText<"Alias for --lto-emit-asm">;
+def plugin_opt_emit_llvm: F<"plugin-opt=emit-llvm">;
def: J<"plugin-opt=jobs=">, Alias<thinlto_jobs_eq>, HelpText<"Alias for --thinlto-jobs=">;
def plugin_opt_mcpu_eq: J<"plugin-opt=mcpu=">;
diff --git a/test/MinGW/driver.test b/test/MinGW/driver.test
index 46b3b6d..a4e9e5e 100644
--- a/test/MinGW/driver.test
+++ b/test/MinGW/driver.test
@@ -415,6 +415,13 @@
RUN: ld.lld -### foo.o -m i386pep --lto-O2 --lto-CGO1 --lto-cs-profile-generate --lto-cs-profile-file=foo 2>&1 | FileCheck -check-prefix=LTO_OPTS2 %s
LTO_OPTS2:-opt:lldlto=2 -opt:lldltocgo=1 -lto-cs-profile-generate -lto-cs-profile-file:foo
+RUN: ld.lld -### foo.o -m i386pe -plugin-opt=emit-asm 2>&1 | FileCheck -check-prefix=LTO_EMIT_ASM %s
+RUN: ld.lld -### foo.o -m i386pe --lto-emit-asm 2>&1 | FileCheck -check-prefix=LTO_EMIT_ASM %s
+LTO_EMIT_ASM: -lldemit:asm
+
+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
+
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
