Enable frame pointer elimination on i386, amd64 and mips64 when given

optimization flags.

ok kettenis@ visa@

1 files changed, 12 insertions, 0 deletions

diff --git a/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp b/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp
index 199b3dadfd7..d5495d63511 100644
--- a/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/gnu/llvm/tools/clang/lib/Driver/ToolChains/Clang.cpp
@@ -528,6 +528,18 @@ static bool useFramePointerForTargetByDefault(const ArgList &Args,
     return !areOptimizationsEnabled(Args);
   }
 
+  if (Triple.getOS() == llvm::Triple::OpenBSD) {
+    switch (Triple.getArch()) {
+    case llvm::Triple::mips64:
+    case llvm::Triple::mips64el:
+    case llvm::Triple::x86:
+    case llvm::Triple::x86_64:
+      return !areOptimizationsEnabled(Args);
+    default:
+      return true;
+    }
+  }
+
   if (Triple.isOSLinux() || Triple.getOS() == llvm::Triple::CloudABI) {
     switch (Triple.getArch()) {
     // Don't use a frame pointer on linux if optimizing for certain targets.