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[LLD] [MinGW] Implement the -lto-sample-profile option (#85841)

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This has been a supported option for ELF and is added to the COFF Linker
in #85701
This commit is contained in:
chrulski-intel
2024-03-21 06:34:01 -07:00
committed by GitHub
parent 0aa6d57e57
commit 276283d864
3 changed files with 7 additions and 0 deletions
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2
lld/MinGW/Driver.cpp
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@@ -455,6 +455,8 @@ bool link(ArrayRef<const char *> argsArr, llvm::raw_ostream &stdoutOS,
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()));

2
lld/MinGW/Options.td
View File

@@ -160,6 +160,8 @@ 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 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">;

3
lld/test/MinGW/driver.test
View File

@@ -422,6 +422,9 @@ 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
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