https://bugs.llvm.org/show_bug.cgi?id=33671
Bug ID: 33671
Summary: PowerPC64: Invalid stxv emitted - not a multiple of 16
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: PowerPC
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
I'm seeing an invalid stxv when building the following test case:
#include <string.h>
struct {
int a;
int b;
} c[3];
int *d;
int e, f;
void g(void)
{
int h = 0;
for (; h < 3; h++) {
memset(&c[h], 0, sizeof *c);
for (; e;)
d[f] = 0;
}
}
# clang -O2 -mcpu=power9 -S foo.c
# gcc -c foo.s
foo.s:41: Error: operand out of domain (8 is not a multiple of 16)
Note: It looks like the integrated assembler accepts the invalid input and just
truncates the offset. It would be nice to emit an error like gas does.
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