[PowerPC] Support -mno-red-zone option (llvm#94581)

ROCm · Aug 19, 2024 · b6d1df2 · b6d1df2
1 parent de5deb7
commit b6d1df2
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diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -2104,6 +2104,9 @@ void Clang::AddPPCTargetArgs(const ArgList &Args,
     CmdArgs.push_back("-mabi=vec-extabi");
   }
 
+  if (!Args.hasFlag(options::OPT_mred_zone, options::OPT_mno_red_zone, true))
+    CmdArgs.push_back("-disable-red-zone");
+
   ppc::FloatABI FloatABI = ppc::getPPCFloatABI(D, Args);
   if (FloatABI == ppc::FloatABI::Soft) {
     // Floating point operations and argument passing are soft.

diff --git a/clang/test/Driver/flags.c b/clang/test/Driver/flags.c
@@ -33,3 +33,6 @@
 //
 // RUN: %clang --target=riscv64 -### -S -mno-implicit-float %s 2>&1 | FileCheck -check-prefix=TEST11 %s
 // TEST11: "-no-implicit-float"
+//
+// RUN: %clang --target=ppc64le -### -S -mno-red-zone %s 2>&1 | FileCheck -check-prefix=TEST12 %s
+// TEST12: "-disable-red-zone"