Mercurial > projects > ldc
view tests/mini/union5.d @ 1215:08f87d8cd101
Fix some unittests for 64-bit asm. They were operating on int variables as if
they were longs.
This was causing asm1_1 to fail when compiled with -O3 because it was
overwriting the spilled value of callee-saved register %rbx, which the runtime
was using as a pointer value at the time.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Mon, 13 Apr 2009 17:42:36 +0200 |
parents | 44f08170f4ef |
children |
line wrap: on
line source
module union5; union S { T t; U u; uint i; struct { ushort sl,sh; } } struct T { int i; } struct U { float f; } void main() { S s; assert(s.t.i == 0); assert(s.u.f == 0); s.t.i = -1; assert(s.i == 0xFFFF_FFFF); float f = 3.1415; s.u.f = f; uint pi = *cast(uint*)&f; assert(s.i == pi); assert(s.sl == (pi&0xFFFF)); assert(s.sh == (pi>>>16)); }