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Driver/IRgen: Add support for -momit-leaf-frame-pointer.

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llvm-svn: 107367
This commit is contained in:
Daniel Dunbar
2010-07-01 01:31:45 +00:00
parent 54b8b8c1a7
commit bb7ac52e02
7 changed files with 59 additions and 1 deletions
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16
clang/lib/CodeGen/BackendUtil.cpp
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@@ -160,7 +160,20 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
// 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 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
assert(CodeGenOpts.FloatABI.empty() && "Invalid float abi!");
llvm::FloatABIType = llvm::FloatABI::Default;
}
NoZerosInBSS = CodeGenOpts.NoZeroInitializedInBSS;
llvm::UseSoftFloat = CodeGenOpts.SoftFloat;
UnwindTablesMandatory = CodeGenOpts.UnwindTables;