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Auto merge of #113923 - DianQK:restore-no-builtins-lto, r=pnkfelix

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Restore `#![no_builtins]` crates participation in LTO.

After #113716, we can make `#![no_builtins]` crates participate in LTO again.

`#![no_builtins]` with LTO does not result in undefined references to the error. I believe this type of issue won't happen again.

Fixes #72140.  Fixes #112245. Fixes #110606.  Fixes #105734. Fixes #96486. Fixes #108853. Fixes #108893. Fixes #78744. Fixes #91158. Fixes https://github.com/rust-lang/cargo/issues/10118. Fixes https://github.com/rust-lang/compiler-builtins/issues/347.

 The `nightly-2023-07-20` version does not always reproduce problems due to changes in compiler-builtins, core, and user code. That's why this issue recurs and disappears.
Some issues were not tested due to the difficulty of reproducing them.

r? pnkfelix

cc `@bjorn3` `@japaric` `@alexcrichton` `@Amanieu`
This commit is contained in:
bors 2023-12-01 21:45:18 +00:00
commit 8c2b577217
16 changed files with 134 additions and 90 deletions
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8
compiler/rustc_codegen_llvm/src/llvm/ffi.rs
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@ -2163,13 +2163,8 @@ extern "C" {
ArgsCstrBuff: *const c_char,
ArgsCstrBuffLen: usize,
) -> *mut TargetMachine;
pub fn LLVMRustDisposeTargetMachine(T: *mut TargetMachine);
pub fn LLVMRustAddLibraryInfo<'a>(
PM: &PassManager<'a>,
M: &'a Module,
DisableSimplifyLibCalls: bool,
);
pub fn LLVMRustAddLibraryInfo<'a>(PM: &PassManager<'a>, M: &'a Module);
pub fn LLVMRustWriteOutputFile<'a>(
T: &'a TargetMachine,
PM: &PassManager<'a>,
@ -2191,7 +2186,6 @@ extern "C" {
UnrollLoops: bool,
SLPVectorize: bool,
LoopVectorize: bool,
DisableSimplifyLibCalls: bool,
EmitLifetimeMarkers: bool,
SanitizerOptions: Option<&SanitizerOptions>,
PGOGenPath: *const c_char,