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Introduce register dump helper

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222379 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun 2014-11-19 19:46:11 +00:00
parent a44c501561
commit c754d5815d
2 changed files with 13 additions and 0 deletions
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4
include/llvm/Target/TargetRegisterInfo.h
View File

@ -502,6 +502,10 @@ public:
return composeSubRegIndicesImpl(a, b);
}
/// Debugging helper: dump register in human readable form to dbgs() stream.
static void dumpReg(unsigned Reg, unsigned SubRegIndex = 0,
const TargetRegisterInfo* TRI = nullptr);
protected:
/// Overridden by TableGen in targets that have sub-registers.
virtual unsigned composeSubRegIndicesImpl(unsigned, unsigned) const {

9
lib/CodeGen/TargetRegisterInfo.cpp
View File

@ -16,6 +16,7 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/VirtRegMap.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@ -293,3 +294,11 @@ TargetRegisterInfo::getRegAllocationHints(unsigned VirtReg,
// All clear, tell the register allocator to prefer this register.
Hints.push_back(Phys);
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void
TargetRegisterInfo::dumpReg(unsigned Reg, unsigned SubRegIndex,
const TargetRegisterInfo *TRI) {
dbgs() << PrintReg(Reg, TRI, SubRegIndex) << "\n";
}
#endif