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Add optimize-for-size knob.

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llvm-svn: 48793
This commit is contained in:
Devang Patel 2008-03-25 21:02:35 +00:00
parent 8cb64d8e8b
commit 71f3156ea3
2 changed files with 10 additions and 0 deletions
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4
include/llvm/Target/TargetOptions.h
View File

@ -78,6 +78,10 @@ namespace llvm {
/// on the commandline. When the flag is on, the target will perform tail call
/// optimization (pop the caller's stack) providing it supports it.
extern bool PerformTailCallOpt;
/// OptimizeForSize - When this flags is set, code generator avoids optimization
/// that increases size.
extern bool OptimizeForSize;
} // End llvm namespace
#endif

6
lib/Target/TargetMachine.cpp
View File

@ -34,6 +34,7 @@ namespace llvm {
Reloc::Model RelocationModel;
CodeModel::Model CMModel;
bool PerformTailCallOpt;
bool OptimizeForSize;
}
namespace {
cl::opt<bool, true> PrintCode("print-machineinstrs",
@ -123,6 +124,11 @@ namespace {
cl::desc("Turn on tail call optimization."),
cl::location(PerformTailCallOpt),
cl::init(false));
cl::opt<bool, true>
EnableOptimizeForSize("optimizeforsize",
cl::desc("Optimize for size."),
cl::location(OptimizeForSize),
cl::init(false));
}
//---------------------------------------------------------------------------