https://bugs.llvm.org/show_bug.cgi?id=50608
Bug ID: 50608
Summary: PowerPC: 'Z' inline assembly constraint not supported
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: PowerPC
Assignee: unassignedb...@nondot.org
Reporter: tstel...@redhat.com
CC: llvm-bugs@lists.llvm.org, nemanja.i....@gmail.com
cat test.c
void func(int myarg)
{
asm volatile(" .asciz \"%n[S1]@%I[A1]%[A1]\" " :: [S1] "n" (1), [A1] "nZr"
((myarg)));
}
int main(int argc, char **argv)
{
func(0);
return 0;
}
./bin/clang --target=ppc64le test.c
test.c:10:18: error: invalid operand in inline asm: ' .asciz "${0:n}@${1:I}$1"
'
If I remove the 'Z constraint the test case compiles successfully. This
constraint is supported by gcc:
https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html
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