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| author | Christopher Lamb <christopher.lamb@gmail.com> | 2007-07-26 08:18:32 +0000 |
|---|---|---|
| committer | Christopher Lamb <christopher.lamb@gmail.com> | 2007-07-26 08:18:32 +0000 |
| commit | e9d738cefc414db00b589f981da0613fa656787b (patch) | |
| tree | 400eae6dd24661863f3a952f55e42530e2d1afad /llvm/lib/CodeGen/LLVMTargetMachine.cpp | |
| parent | 18603b03e1c7ff66a946da52de9b72bec20ca5b5 (diff) | |
| download | bcm5719-llvm-e9d738cefc414db00b589f981da0613fa656787b.tar.gz bcm5719-llvm-e9d738cefc414db00b589f981da0613fa656787b.zip | |
Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions.
llvm-svn: 40521
Diffstat (limited to 'llvm/lib/CodeGen/LLVMTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LLVMTargetMachine.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp index 218e79ac725..4620abb7211 100644 --- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp +++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp @@ -96,6 +96,8 @@ LLVMTargetMachine::addPassesToEmitFile(FunctionPassManager &PM, if (addPreEmitPass(PM, Fast) && PrintMachineCode) PM.add(createMachineFunctionPrinterPass(cerr)); + + PM.add(createLowerSubregsPass()); switch (FileType) { default: @@ -197,6 +199,8 @@ bool LLVMTargetMachine::addPassesToEmitMachineCode(FunctionPassManager &PM, if (addPreEmitPass(PM, Fast) && PrintMachineCode) PM.add(createMachineFunctionPrinterPass(cerr)); + + PM.add(createLowerSubregsPass()); addCodeEmitter(PM, Fast, PrintEmittedAsm, MCE); |
