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rustc: add ability to output regular LTO bitcode modules

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Adding the option to control from rustc CLI
if the resulted ".o" bitcode module files are with
thinLTO info or regular LTO info.

Allows using "-lto-embed-bitcode=optimized" during linkage
correctly.

Signed-off-by: Ziv Dunkelman <ziv.dunkelman@nextsilicon.com>
This commit is contained in:
Ziv Dunkelman 2022-06-08 17:30:16 +03:00
parent 0ed9c64c3e
commit 724c91234d
10 changed files with 32 additions and 7 deletions
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2
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
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@ -2469,7 +2469,7 @@ extern "C" {
pub fn LLVMRustModuleBufferFree(p: &'static mut ModuleBuffer);
pub fn LLVMRustModuleCost(M: &Module) -> u64;
pub fn LLVMRustThinLTOBufferCreate(M: &Module) -> &'static mut ThinLTOBuffer;
pub fn LLVMRustThinLTOBufferCreate(M: &Module, is_thin: bool) -> &'static mut ThinLTOBuffer;
pub fn LLVMRustThinLTOBufferFree(M: &'static mut ThinLTOBuffer);
pub fn LLVMRustThinLTOBufferPtr(M: &ThinLTOBuffer) -> *const c_char;
pub fn LLVMRustThinLTOBufferLen(M: &ThinLTOBuffer) -> size_t;