================
@@ -312,16 +312,21 @@ struct DNBRegisterValue {
uint64_t uint64;
float float32;
double float64;
- int8_t v_sint8[64];
- int16_t v_sint16[32];
- int32_t v_sint32[16];
- int64_t v_sint64[8];
- uint8_t v_uint8[64];
- uint16_t v_uint16[32];
- uint32_t v_uint32[16];
- uint64_t v_uint64[8];
- float v_float32[16];
- double v_float64[8];
+ // AArch64 SME's ZA register max size is 64k, this object must be
+ // large enough to hold that much data. The current Apple cores
+ // have a much smaller maximum ZA reg size, but there are not
+ // multiple copies of this object so increase the static size to
+ // maximum possible.
----------------
DavidSpickett wrote:
For Linux I remember heap allocating the object that represented the array
register, because of the potential size. Perhaps that just uses a buffer in the
background though.
The problem you have with this is that even `x0` will take up 64k, right? Or is
this object used as an overlay to a buffer and doesn't actually get allocated?
https://github.com/llvm/llvm-project/pull/119171
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