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| author | Chris Lattner <sabre@nondot.org> | 2004-02-17 06:30:34 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-02-17 06:30:34 +0000 |
| commit | a7660be6c21f23922baf61c880ec8f2224c23200 (patch) | |
| tree | f757c8d37f6e772ab24ac50b7f33fdf84ee19614 /lib | |
| parent | e87331d11d153747cbb473a95c954693ad0c59b6 (diff) | |
| download | llvm-a7660be6c21f23922baf61c880ec8f2224c23200.tar.gz llvm-a7660be6c21f23922baf61c880ec8f2224c23200.tar.bz2 llvm-a7660be6c21f23922baf61c880ec8f2224c23200.tar.xz | |
Add an option to disable spill fusing in the X86 backend
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11531 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index b3d9bb2ab8..dae171f8af 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -31,6 +31,9 @@ namespace { cl::opt<bool> NoFPElim("disable-fp-elim", cl::desc("Disable frame pointer elimination optimization")); + cl::opt<bool> + NoFusing("disable-spill-fusing", + cl::desc("Disable fusing of spill code into instructions")); } X86RegisterInfo::X86RegisterInfo() @@ -106,6 +109,8 @@ static MachineInstr *MakeRMIInst(unsigned Opcode, unsigned FrameIndex, bool X86RegisterInfo::foldMemoryOperand(MachineBasicBlock::iterator &MI, unsigned i, int FrameIndex) const { + if (NoFusing) return false; + /// FIXME: This should obviously be autogenerated by tablegen when patterns /// are available! MachineBasicBlock& MBB = *MI->getParent(); |