Attachment #367766 for bug #484502




    u.ival64 = (static_cast<uint64_t>(hi) << 32) | lo;
    return u.dval;
}

static void Double2Ints(double val, uint32_t& lo, uint32_t& hi)
{
    union {
        double dval;
        uint64_t ival64;
    } u;
    u.dval = val;
    hi = static_cast<uint32_t>(u.ival64 >> 32);
    lo = static_cast<uint32_t>(u.ival64);
}
#endif // USE(JSVALUE32_64)

} // namespace LLint

Lines 1025-1031 class Instruction Link Here

(-)a/Source/JavaScriptCore/offlineasm/cloop.rb (-1 / +1 lines)
1025	# 32-bit instruction: f2dii dblOp int32LoOp int32HiOp (based on ARMv7)	1025	# 32-bit instruction: f2dii dblOp int32LoOp int32HiOp (based on ARMv7)
1026	# Encode a 64-bit double into 2 32-bit ints (low and high).	1026	# Encode a 64-bit double into 2 32-bit ints (low and high).
1027	when "fd2ii"	1027	when "fd2ii"
1028	$asm.putc "Double2Ints(#{operands[0].clValue(:double)}, #{operands[1].clValue}, #{operands[2].clValue});"	1028	$asm.putc "Double2Ints(#{operands[0].clValue(:double)}, #{operands[1].clValue(:uint32)}, #{operands[2].clValue(:uint32)});"
1029		1029
1030	# 64-bit instruction: fq2d int64Op dblOp (based on X64)	1030	# 64-bit instruction: fq2d int64Op dblOp (based on X64)
1031	# Copy a bit-encoded double in a 64-bit int register to a double register.	1031	# Copy a bit-encoded double in a 64-bit int register to a double register.

Return to bug 484502

Lines 117-122 static double Ints2Double(uint32_t lo, uint32_t hi) Link Here

(-)a/Source/JavaScriptCore/llint/LowLevelInterpreter.cpp (+11 lines)
117	u.ival64 = (static_cast<uint64_t>(hi) << 32) \| lo;	117	u.ival64 = (static_cast<uint64_t>(hi) << 32) \| lo;
118	return u.dval;	118	return u.dval;
119	}	119	}
		120
		121	static void Double2Ints(double val, uint32_t& lo, uint32_t& hi)
		122	{
		123	union {
		124	double dval;
		125	uint64_t ival64;
		126	} u;
		127	u.dval = val;
		128	hi = static_cast<uint32_t>(u.ival64 >> 32);
		129	lo = static_cast<uint32_t>(u.ival64);
		130	}
120	#endif // USE(JSVALUE32_64)	131	#endif // USE(JSVALUE32_64)
121		132
122	} // namespace LLint	133	} // namespace LLint