Driver/IRgen: Add support for -momit-leaf-frame-pointer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107367 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 793a4da..69efe43 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -160,7 +160,20 @@
// FIXME: Expose these capabilities via actual APIs!!!! Aside from just
// being gross, this is also totally broken if we ever care about
// concurrency.
- llvm::NoFramePointerElim = CodeGenOpts.DisableFPElim;
+
+ // Set frame pointer elimination mode.
+ if (!CodeGenOpts.DisableFPElim) {
+ llvm::NoFramePointerElim = false;
+ llvm::NoFramePointerElimNonLeaf = false;
+ } else if (CodeGenOpts.OmitLeafFramePointer) {
+ llvm::NoFramePointerElim = false;
+ llvm::NoFramePointerElimNonLeaf = true;
+ } else {
+ llvm::NoFramePointerElim = true;
+ llvm::NoFramePointerElimNonLeaf = true;
+ }
+
+ // Set float ABI type.
if (CodeGenOpts.FloatABI == "soft")
llvm::FloatABIType = llvm::FloatABI::Soft;
else if (CodeGenOpts.FloatABI == "hard")
@@ -169,6 +182,7 @@
assert(CodeGenOpts.FloatABI.empty() && "Invalid float abi!");
llvm::FloatABIType = llvm::FloatABI::Default;
}
+
NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
llvm::UseSoftFloat = CodeGenOpts.SoftFloat;
UnwindTablesMandatory = CodeGenOpts.UnwindTables;