Displaying 2 results from an estimated 2 matches for "ccbitconverttotype".
2008 Dec 27
3
[LLVMdev] Using CallingConvLower in ARM target
Attached is a prototype patch that uses CCState to lower RET nodes in
the ARM target. Lowering CALL nodes will come later.
This patch does not handle f64 and i64 types. For these types, it
would be ideal to request the conversions below:
def RetCC_ARM_APCS : CallingConv<[
CCIfType<[f32], CCBitConvertToType<i32>>,
CCIfType<[f64], CCBitConvertToType<i64>>,
CCIfType<[i64], CCExtractElements<2, i32>>,
CCIfType<[i32], CCAssignToReg<[R0, R1]>>
]>;
The problem is that i64 handling requires splitting into 2 x i32
registers. I am not sure how to build CC...
2009 Jan 03
0
[LLVMdev] Using CallingConvLower in ARM target
...CALL nodes will come later.
>
> This patch does not handle f64 and i64 types. For these types, it
> would be ideal to request the conversions below:
i64 isn't Legal on ARM, so it should already be handled.
>
>
> def RetCC_ARM_APCS : CallingConv<[
> CCIfType<[f32], CCBitConvertToType<i32>>,
> CCIfType<[f64], CCBitConvertToType<i64>>,
> CCIfType<[i64], CCExtractElements<2, i32>>,
>
> CCIfType<[i32], CCAssignToReg<[R0, R1]>>
> ]>;
>
> The problem is that i64 handling requires splitting into 2 x i32
> regis...