Mercurial > projects > ldc
view tests/mini/naked_asm6.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 | 855889b7b268 |
children |
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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); }