Hello!
I have the following assebly:
```C
__asm__ __volatile__ (
"990: nop\n" \
".pushsection .note.stapsdt,\"?\",\"note\"\n" \
".balign 4\n" \
".4byte 992f-991f, 994f-993f, 3\n" \
"991: .asciz \"stapsdt\"\n" \
"992: .balign 4\n" \
"993: .8byte 990b\n" \
".8byte _.stapsdt.base\n" \
".8byte 0\n" \
".asciz \"myapp\"\n" \
".asciz \"func_call\"\n" \
".asciz \"%n[_SDT_S1]@%[_SDT_A1] %n[_SDT_S2]@%[_SDT_A2]\"\n" \
"994: .balign 4\n" \
".popsection\n"
:: [_SDT_S1] "n" (4),
[_SDT_A1] "nor" ((a)),
[_SDT_S2] "n" (4),
[_SDT_A2] "nor" ((b))
);
```
this code compiles by gcc but gdc ((Debian 6.3.0-18+deb9u1) 6.3.0
20170516) fails. It doesn't like __volatile__ keyword and :: syntax
```D
__asm__ (
"990: nop"
".pushsection .note.stapsdt,\"?\",\"note\""
".balign 4"
".4byte 992f-991f, 994f-993f, 3"
"991: .asciz \"stapsdt\""
"992: .balign 4"
"993: .8byte 990b"
".8byte _.stapsdt.base"
".8byte 0"
".asciz \"myapp\""
".asciz \"func_call\""
".asciz \"%n[_SDT_S1]@%[_SDT_A1] %n[_SDT_S2]@%[_SDT_A2]\""
"994: .balign 4"
".popsection\n"
:: [_SDT_S1] "n" (4),
[_SDT_A1] "nor" ((a)),
[_SDT_S2] "n" (4),
[_SDT_A2] "nor" ((b))
);
```
