[lld] [lld][WebAssembly] Set the target-cpu in LTO config (PR #140010)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-lld

Author: YAMAMOTO Takashi (yamt)

<details>
<summary>Changes</summary>

I couldn't find an existing way to pass -mcpu=lime1 equivalent to LTO codegen. This commit would privide one.

---
Full diff: https://github.com/llvm/llvm-project/pull/140010.diff


1 Files Affected:

- (modified) lld/wasm/LTO.cpp (+1) 


``````````diff
diff --git a/lld/wasm/LTO.cpp b/lld/wasm/LTO.cpp
index a877f067603e5..581104745b8ba 100644
--- a/lld/wasm/LTO.cpp
+++ b/lld/wasm/LTO.cpp
@@ -59,6 +59,7 @@ static lto::Config createConfig() {
   c.DisableVerify = ctx.arg.disableVerify;
   c.DiagHandler = diagnosticHandler;
   c.OptLevel = ctx.arg.ltoo;
+  c.CPU = getCPUStr();
   c.MAttrs = getMAttrs();
   c.CGOptLevel = ctx.arg.ltoCgo;
   c.DebugPassManager = ctx.arg.ltoDebugPassManager;

``````````

</details>


https://github.com/llvm/llvm-project/pull/140010