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author | Christopher Lamb <christopher.lamb@gmail.com> | 2007-07-26 08:01:58 +0000 |
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committer | Christopher Lamb <christopher.lamb@gmail.com> | 2007-07-26 08:01:58 +0000 |
commit | 1367fd09cb021bae61e7dd2ee208f76574c8e789 (patch) | |
tree | 25489666895163af58db4b986a4ebfed26811507 /include/llvm/Target/MRegisterInfo.h | |
parent | 08d52071bae2f8cc2e9aa6a451118b83d043813b (diff) | |
download | external_llvm-1367fd09cb021bae61e7dd2ee208f76574c8e789.zip external_llvm-1367fd09cb021bae61e7dd2ee208f76574c8e789.tar.gz external_llvm-1367fd09cb021bae61e7dd2ee208f76574c8e789.tar.bz2 |
Have register info provide the inverse mapping of register->superregisters. PR1350
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40519 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/MRegisterInfo.h')
-rw-r--r-- | include/llvm/Target/MRegisterInfo.h | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h index d2b76b8..d56e0e5 100644 --- a/include/llvm/Target/MRegisterInfo.h +++ b/include/llvm/Target/MRegisterInfo.h @@ -68,6 +68,7 @@ private: const sc_iterator SubClasses; const sc_iterator SuperClasses; const sc_iterator SubRegClasses; + const sc_iterator SuperRegClasses; const unsigned RegSize, Alignment; // Size & Alignment of register in bytes const iterator RegsBegin, RegsEnd; public: @@ -76,9 +77,10 @@ public: const TargetRegisterClass * const *subcs, const TargetRegisterClass * const *supcs, const TargetRegisterClass * const *subregcs, + const TargetRegisterClass * const *superregcs, unsigned RS, unsigned Al, iterator RB, iterator RE) : ID(id), VTs(vts), SubClasses(subcs), SuperClasses(supcs), - SubRegClasses(subregcs), + SubRegClasses(subregcs), SuperRegClasses(superregcs), RegSize(RS), Alignment(Al), RegsBegin(RB), RegsEnd(RE) {} virtual ~TargetRegisterClass() {} // Allow subclasses @@ -131,9 +133,9 @@ public: return I; } - /// hasSubRegClass - return true if the specified TargetRegisterClass is a + /// hasSubClass - return true if the specified TargetRegisterClass is a /// sub-register class of this TargetRegisterClass. - bool hasSubRegClass(const TargetRegisterClass *cs) const { + bool hasSubClass(const TargetRegisterClass *cs) const { for (int i = 0; SubClasses[i] != NULL; ++i) if (SubClasses[i] == cs) return true; @@ -152,9 +154,9 @@ public: return I; } - /// hasSuperRegClass - return true if the specified TargetRegisterClass is a + /// hasSuperClass - return true if the specified TargetRegisterClass is a /// super-register class of this TargetRegisterClass. - bool hasSuperRegClass(const TargetRegisterClass *cs) const { + bool hasSuperClass(const TargetRegisterClass *cs) const { for (int i = 0; SuperClasses[i] != NULL; ++i) if (SuperClasses[i] == cs) return true; @@ -173,9 +175,9 @@ public: return I; } - /// hasSubRegForClass - return true if the specified TargetRegisterClass is a + /// hasSubRegClass - return true if the specified TargetRegisterClass is a /// class of a sub-register class for this TargetRegisterClass. - bool hasSubRegForClass(const TargetRegisterClass *cs) const { + bool hasSubRegClass(const TargetRegisterClass *cs) const { for (int i = 0; SubRegClasses[i] != NULL; ++i) if (SubRegClasses[i] == cs) return true; @@ -199,6 +201,7 @@ public: for (unsigned i = 0; SubRegClasses[i] != NULL; ++i) if (i == SubReg) return &SubRegClasses[i]; + assert(0 && "Invalid subregister index for register class"); return NULL; } @@ -214,6 +217,18 @@ public: return I; } + /// superregclasses_begin / superregclasses_end - Loop over all of + /// the superregister classes of this register class. + sc_iterator superregclasses_begin() const { + return SuperRegClasses; + } + + sc_iterator superregclasses_end() const { + sc_iterator I = SuperRegClasses; + while (*I != NULL) ++I; + return I; + } + /// allocation_order_begin/end - These methods define a range of registers /// which specify the registers in this class that are valid to register /// allocate, and the preferred order to allocate them in. For example, |