[clang] [PS5][Driver] Ensure stack sizes are emitted by LTO (PR #100592)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Edd Dawson (playstation-edd)

<details>
<summary>Changes</summary>

... when requested.

Upstreaming a private patch.

SIE tracker: TOOLCHAIN-16575

---
Full diff: https://github.com/llvm/llvm-project/pull/100592.diff


2 Files Affected:

- (modified) clang/lib/Driver/ToolChains/PS4CPU.cpp (+4) 
- (modified) clang/test/Driver/stack-size-section.c (+1) 


``````````diff
diff --git a/clang/lib/Driver/ToolChains/PS4CPU.cpp b/clang/lib/Driver/ToolChains/PS4CPU.cpp
index 813a0fbedd2b1..f883f29f0c8ca 100644
--- a/clang/lib/Driver/ToolChains/PS4CPU.cpp
+++ b/clang/lib/Driver/ToolChains/PS4CPU.cpp
@@ -266,6 +266,10 @@ void tools::PS5cpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
   if (UseJMC)
     AddLTOFlag("-enable-jmc-instrument");
 
+  if (Args.hasFlag(options::OPT_fstack_size_section,
+                   options::OPT_fno_stack_size_section, false))
+    AddLTOFlag("-stack-size-section");
+
   if (Arg *A = Args.getLastArg(options::OPT_fcrash_diagnostics_dir))
     AddLTOFlag(Twine("-crash-diagnostics-dir=") + A->getValue());
 
diff --git a/clang/test/Driver/stack-size-section.c b/clang/test/Driver/stack-size-section.c
index 71b9f85692b99..7cd41e491a817 100644
--- a/clang/test/Driver/stack-size-section.c
+++ b/clang/test/Driver/stack-size-section.c
@@ -14,6 +14,7 @@
 
 // RUN: %clang -### --target=x86_64-linux-gnu -flto -fstack-size-section %s 2>&1 | FileCheck %s --check-prefix=LTO
 // RUN: %clang -### --target=x86_64-linux-gnu -flto -fstack-size-section -fno-stack-size-section %s 2>&1 | FileCheck %s --check-prefix=LTO-NO
+// RUN: %clang -### --target=x86_64-sie-ps5 -fstack-size-section %s 2>&1 | FileCheck %s --check-prefix=LTO
 
 // LTO: "-plugin-opt=-stack-size-section"
 // LTO-NO-NOT: "-plugin-opt=-stack-size-section"

``````````

</details>


https://github.com/llvm/llvm-project/pull/100592