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view tests/mini/naked_asm5.d @ 1210:3d4581761b4c
Add some alignment info where LLVM might otherwise be more pessimistic.
In particular, %.nest_arg is always aligned even though it's bitcast from i8*.
Pointers in vtables are also guaranteed to be stored at aligned addresses.
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Sun, 12 Apr 2009 21:56:43 +0200 |
parents | 1b10a9c6e3e8 |
children | a400b1dd657f |
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int foo(int op)(int a, int b) { version(X86) { const OP = (op == '+') ? "add" : "sub"; asm { naked; } mixin("asm{"~OP~" EAX, [ESP+4];}"); asm { ret 4; } } else version(X86_64) { const OP = (op == '+') ? "add" : "sub"; asm { naked; } mixin("asm{"~OP~" ESI,EDI; mov EAX, ESI;}"); asm { ret; } } else static assert(0, "todo"); } void main() { int i = foo!('+')(2, 4); assert(i == 6); i = foo!('-')(2, 4); assert(i == 2); }