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precompile and cache Carbon prelude (#7432)

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Refactors the link driver to automatically compile and cache the carbon
prelude for use in linking.

Implements a `carbon_library` rule for compiling the Core library
dependencies in the examples.
This commit is contained in:
Lucile Rose Nihlen
2026-07-16 18:02:14 +00:00
committed by GitHub
parent 90f6654b48
commit 625f2ca629
63 changed files with 1454 additions and 634 deletions
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toolchain/driver/compile_subcommand.cpp
+8 -6
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@@ -26,19 +26,21 @@ can be written to standard output as these phases progress.
CompileSubcommand::CompileSubcommand() : DriverSubcommand(SubcommandInfo) {}
auto CompileSubcommand::Run(DriverEnv& driver_env) -> DriverResult {
if (driver_env.fuzzing && !options_.clang_args.empty()) {
options_.compile_options.FixupFlags();
if (driver_env.fuzzing && !options_.compile_options.clang_args.empty()) {
// Parsing specific Clang arguments can reach deep into
// external libraries that aren't fuzz clean.
TestAndDiagnoseIfFuzzingExternalLibraries(driver_env, "compile");
return {.success = false};
}
auto compile_driver = CompileDriver(&options_);
auto compile_driver = CompileDriver(&options_.compile_options);
if (!compile_driver.Initialize(driver_env,
[&](llvm::StringRef) -> std::string {
return options_.output_filename.str();
})) {
if (!compile_driver.Initialize(
driver_env, [&](llvm::StringRef) -> std::string {
return options_.compile_options.output_filename.str();
})) {
return {.success = false};
}