Hi.
Opening per suggestion in Bug 23200.
The following program:
---
int main()
{
const int i = 1;
asm volatile ("" :: "i"(i));
return i;
}
---
gives this when compiled without -Ox:
---
asc.c: In function 'main':
asc.c:4: warning: asm operand 0 probably doesn't match constraints
asc.c:4: error: impossible constraint in 'asm'
---
Turning on the optimization makes it to compile.
--
Summary: rejects "i"(const_var) without -O1
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: inline-asm
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: stsp at users dot sourceforge dot net
GCC host triplet: x86_64, i386
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34830
