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comparison tests/mini/naked_asm5.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 1b10a9c6e3e8
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919:c76f74d09fb1 920:545f54041d91
1 int foo(int op)(int a, int b)
2 {
3 version(X86)
4 {
5 const OP = (op == '+') ? "add" : "sub";
6 asm { naked; }
7 mixin("asm{"~OP~" EAX, [ESP+4];}");
8 asm { ret 4; }
9 }
10 else static assert(0, "todo");
11 }
12
13 void main()
14 {
15 int i = foo!('+')(2, 4);
16 assert(i == 6);
17 i = foo!('-')(2, 4);
18 assert(i == 2);
19 }