[cfe-commits] [PATCH] MIPS built-in function overloading

[Simon Atanasyan]

Hi,

Some MIPS built-in functions have two versions. The first one is used
for a register operand. The second one is used for a immediate number.
For example, the second argument of __builtin_mips_shll_qb can be a
register operand or a constant expression.

v4i8 __builtin_mips_shll_qb(v4i8, imm0_7)
v4i8 __builtin_mips_shll_qb(v4i8, i32)

Attached patches implement MIPS built-in function overloading (now for
__builtin_mips_shll_qb only). EmitMipsBuiltinExpr routine checks
whether the second argument is a constant expression and use
corresponding DSP instruction to emit call expression.

Could you please review the patches? Is this approach for built-in
function overloading correct?

--
Simon
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