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Remove redundant writeback flag from ARM address mode 6. Also remove the

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optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98683 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-03-16 21:44:40 +00:00
parent 93b122d3c4
commit bb6c77e6b9
8 changed files with 62 additions and 106 deletions
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20
lib/Target/ARM/ARMAddressingModes.h
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@@ -520,23 +520,11 @@ namespace ARM_AM {
//
// This is used for NEON load / store instructions.
//
// addrmode6 := reg with optional writeback and alignment
// addrmode6 := reg with optional alignment
//
// This is stored in four operands [regaddr, regupdate, opc, align]. The
// first is the address register. The second register holds the value of
// a post-access increment for writeback or reg0 if no writeback or if the
// writeback increment is the size of the memory access. The third
// operand encodes whether there is writeback to the address register. The
// fourth operand is the value of the alignment specifier to use or zero if
// no explicit alignment.
static inline unsigned getAM6Opc(bool WB = false) {
return (int)WB;
}
static inline bool getAM6WBFlag(unsigned Mode) {
return Mode & 1;
}
// This is stored in two operands [regaddr, align]. The first is the
// address register. The second operand is the value of the alignment
// specifier to use or zero if no explicit alignment.
} // end namespace ARM_AM
} // end namespace llvm