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

[Edd Dawson via cfe-commits]

https://github.com/playstation-edd created https://github.com/llvm/llvm-project/pull/100592

... when requested.

Upstreaming a private patch.

SIE tracker: TOOLCHAIN-16575

>From cc1cbf7cccc28c0e7aa13260af2101c0e312ae81 Mon Sep 17 00:00:00 2001
From: Edd Dawson <edd.dawson at sony.com>
Date: Thu, 25 Jul 2024 16:58:57 +0100
Subject: [PATCH] [PS5][Driver] Ensure stack sizes are emitted by LTO

... when requested.

Upstreaming a private patch.

SIE tracker: TOOLCHAIN-16575
---
 clang/lib/Driver/ToolChains/PS4CPU.cpp | 4 ++++
 clang/test/Driver/stack-size-section.c | 1 +
 2 files changed, 5 insertions(+)

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"