Mercurial > projects > ldc
view tests/mini/asm10.d @ 1418:f5f8c21ce6ef
Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls
these were using were different, but with equivalent definitions.
With `ldc -O3`, the following functions now all compile to the exact same code:
{{{
int[int] y;
void foo(int x) {
if (x in y) {
auto z = x in y;
sink(*z);
}
}
void bar(int x) {
if (x in y) {
sink(y[x]);
}
}
void baz(int x) {
if (auto p = x in y) {
sink(*p);
}
}
}}}
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Mon, 25 May 2009 12:50:40 +0200 |
parents | 97d80437cb80 |
children |
line wrap: on
line source
module asm10; struct S { ushort first; ushort second; int unaccessed; } void main() { auto s = S(512, 42, -1); ushort x = 0; version(D_InlineAsm_X86) { asm { lea EAX, s; mov CX, S.second[EAX]; mov x, CX; mov S.first[EAX], 640; } } else version(D_InlineAsm_X86_64) { asm { lea RAX, s; mov CX, S.second[RAX]; mov x, CX; mov S.first[RAX], 640; } } assert(x == 42); assert(s.first == 640); assert(s.second == 42); assert(s.unaccessed == -1); }