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Remove the old register list functions from MCRegisterInfo.
These functions exposed the layout of the underlying data tables as null-terminated uint16_t arrays. Use the new MCSubRegIterator, MCSuperRegIterator, and MCRegAliasIterator classes instead. llvm-svn: 157855
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@ -1626,9 +1626,9 @@ def : Pat<(i32 imm:$imm),
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the registers <tt>EAX</tt>, <tt>AX</tt> and <tt>AL</tt> share the first eight
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bits. These physical registers are marked as <i>aliased</i> in LLVM. Given a
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particular architecture, you can check which registers are aliased by
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inspecting its <tt>RegisterInfo.td</tt> file. Moreover, the method
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<tt>MCRegisterInfo::getAliasSet(p_reg)</tt> returns an array containing
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all the physical registers aliased to the register <tt>p_reg</tt>.</p>
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inspecting its <tt>RegisterInfo.td</tt> file. Moreover, the class
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<tt>MCRegAliasIterator</tt> enumerates all the physical registers aliased to
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a register.</p>
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<p>Physical registers, in LLVM, are grouped in <i>Register Classes</i>.
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Elements in the same register class are functionally equivalent, and can be
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@ -324,33 +324,6 @@ public:
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return operator[](RegNo);
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}
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/// getAliasSet - Return the set of registers aliased by the specified
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/// register, or a null list of there are none. The list returned is zero
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/// terminated.
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///
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const uint16_t *getAliasSet(unsigned RegNo) const {
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// The Overlaps set always begins with Reg itself.
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return RegLists + get(RegNo).Overlaps + 1;
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}
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/// getOverlaps - Return a list of registers that overlap Reg, including
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/// itself. This is the same as the alias set except Reg is included in the
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/// list.
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/// These are exactly the registers in { x | regsOverlap(x, Reg) }.
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///
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const uint16_t *getOverlaps(unsigned RegNo) const {
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return RegLists + get(RegNo).Overlaps;
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}
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/// getSubRegisters - Return the list of registers that are sub-registers of
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/// the specified register, or a null list of there are none. The list
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/// returned is zero terminated and sorted according to super-sub register
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/// relations. e.g. X86::RAX's sub-register list is EAX, AX, AL, AH.
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///
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const uint16_t *getSubRegisters(unsigned RegNo) const {
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return RegLists + get(RegNo).SubRegs;
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}
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/// getSubReg - Returns the physical register number of sub-register "Index"
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/// for physical register RegNo. Return zero if the sub-register does not
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/// exist.
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@ -373,15 +346,6 @@ public:
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return 0;
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}
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/// getSuperRegisters - Return the list of registers that are super-registers
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/// of the specified register, or a null list of there are none. The list
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/// returned is zero terminated and sorted according to super-sub register
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/// relations. e.g. X86::AL's super-register list is AX, EAX, RAX.
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///
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const uint16_t *getSuperRegisters(unsigned RegNo) const {
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return RegLists + get(RegNo).SuperRegs;
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}
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/// getName - Return the human-readable symbolic target-specific name for the
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/// specified physical register.
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const char *getName(unsigned RegNo) const {
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