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view tests/mini/naked_asm6.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 | 855889b7b268 |
children |
line wrap: on
line source
extern(C) int printf(char*, ...); ulong retval() { version (X86) asm { naked; mov EAX, 0xff; mov EDX, 0xaa; ret; } else version (X86_64) asm { naked; mov RAX, 0xaa000000ff; ret; } } ulong retval2() { return (cast(ulong)0xaa << 32) | 0xff; } void main() { auto a = retval(); auto b = retval2(); printf("%llu\n%llu\n", retval(), retval2()); assert(a == 0xaa000000ff); assert(a == b); }