| Issue |
149380
|
| Summary |
[AArch64] ORRv: Bad machine code: Using an undefined physical register
|
| Labels |
backend:AArch64
|
| Assignees |
|
| Reporter |
sjoerdmeijer
|
For a build with expensive checks enabled, this input:
```
#include <algorithm>
unsigned short a;
void g(int b, unsigned long long c[][5], unsigned long long d[]) {
for (short e = 0; e < (short)b; e += 3)
for (short f = 0; f < 15; f += 2)
a = std::min(a, (unsigned short)(signed char)std::max(d[e], c[f][f]));
}
```
compiled with `clang++ -Ofast -mcpu=grace`, runs into this error:
```
*** Bad machine code: Using an undefined physical register ***
- function: _Z1giPA5_yPy
- basic block: %bb.13 vector.body (0xaaaab3961410)
- instruction: $q10 = ORRv16i8 $q3, killed $q3
- operand 2: killed $q3
```
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