From d0e2be39ea6977c4f8278e5b8a624fcf2dc4ff39 Mon Sep 17 00:00:00 2001 From: Johnny Chen Date: Tue, 12 Apr 2011 17:09:04 +0000 Subject: Print out a debug message when the reglist fails the sanity check for Thumb Ld/St Multiple. llvm-svn: 129365 --- .../Target/ARM/Disassembler/ARMDisassemblerCore.h | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'llvm/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h') diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h b/llvm/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h index 41e2a6049d8..a7ba14141c0 100644 --- a/llvm/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h +++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassemblerCore.h @@ -139,6 +139,31 @@ static inline void setSlice(unsigned &Bits, unsigned From, unsigned To, Bits |= (Val & Mask) << To; } +// Return an integer result equal to the number of bits of x that are ones. +static inline uint32_t +BitCount (uint64_t x) +{ + // c accumulates the total bits set in x + uint32_t c; + for (c = 0; x; ++c) + { + x &= x - 1; // clear the least significant bit set + } + return c; +} + +static inline bool +BitIsSet (const uint64_t value, const uint64_t bit) +{ + return (value & (1ull << bit)) != 0; +} + +static inline bool +BitIsClear (const uint64_t value, const uint64_t bit) +{ + return (value & (1ull << bit)) == 0; +} + /// Various utilities for checking the target specific flags. /// A unary data processing instruction doesn't have an Rn operand. -- cgit v1.2.3