Displaying 2 results from an estimated 2 matches for "xmm15b".
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2012 Jan 09
3
[LLVMdev] Calling conventions for YMM registers on AVX
On Jan 9, 2012, at 10:00 AM, Jakob Stoklund Olesen wrote:
>
> On Jan 8, 2012, at 11:18 PM, Demikhovsky, Elena wrote:
>
>> I'll explain what we see in the code.
>> 1. The caller saves XMM registers across the call if needed (according to DEFS definition).
>> YMMs are not in the set, so caller does not take care.
>
> This is not how the register allocator
2012 Jan 10
0
[LLVMdev] Calling conventions for YMM registers on AVX
...">, DwarfRegNum<[28, -2, -2]>;
def XMM12b: Register<"xmm12b">, DwarfRegNum<[29, -2, -2]>;
def XMM13b: Register<"xmm13b">, DwarfRegNum<[30, -2, -2]>;
def XMM14b: Register<"xmm14b">, DwarfRegNum<[31, -2, -2]>;
def XMM15b: Register<"xmm15b">, DwarfRegNum<[32, -2, -2]>;
// YMM Registers, used by AVX instructions
let SubRegIndices = [sub_xmm, sub_xmmb] in {
def YMM0: RegisterWithSubRegs<"ymm0", [XMM0, XMM0b]>, DwarfRegNum<[17, 21, 21]>;
def YMM1: RegisterWithSubRegs...