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comparison tests/mini/naked_asm6.d @ 920:545f54041d91

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Implemented proper support for naked asm using llvm module level asm. Still not 100% complete, but already 1000 times better that what we had before. Don's BignumX86 implementation from Tango (when turned into a standalone unittest) seems to fully work with no changes, and great performance :) Fixed align N; in asm blocks. Fixed inreg parameter passing on x86 for ref/out params. Removed support for lazy initialization of function local static variables, I have no idea why I ever implemented this, it's not in the D spec, and DMD doesn't support it :P Some of the global variable related changes might cause minor regressions, but they should be easily fixable.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Tue, 03 Feb 2009 08:54:57 +0100
parents
children 97688ff7cf93
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919:c76f74d09fb1 920:545f54041d91
1 extern(C) int printf(char*, ...);
2
3 ulong retval() {
4 asm { naked; mov EAX, 0xff; mov EDX, 0xaa; ret; }
5 }
6
7 ulong retval2() {
8 return (cast(ulong)0xaa << 32) | 0xff;
9 }
10
11 void main() {
12 ulong a,b;
13 a = retval();
14 b = retval2();
15 printf("%llu\n%llu\n", retval(), retval2());
16 assert(a == 0x000000aa000000ff);
17 assert(a == b);
18 }