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Fix some assembler issues: The assembler was miscompiling "add" (specifically, the "add reg/mem, imm" variations). The change that caused this seems to have been made because without it, some "add"s didn't compile at all. This patch reverts the previous change, and makes sure assembler operands are remapped correctly even though the input operands auto-generated due to updating operations aren't explicitly used.
author Frits van Bommel <fvbommel wxs.nl>
date Wed, 18 Feb 2009 21:46:14 +0100
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978:6a32d2e18175 979:523bf4f166bc
1 module asm9;
2
3 version(X86) version = DoSome;
4 else version(X86_64) version = DoSome;
5
6 T add(T, T t)(T a) {
7 asm {
8 add a, t;
9 }
10 return a;
11 }
12
13 void main() {
14 version (DoSome) {
15 assert(add!(ubyte, 20)(10) == 30);
16 assert(add!(ushort, 20_000)(10_000) == 30_000);
17 assert(add!(uint, 2_000_000)(1_000_000) == 3_000_000);
18 }
19 version(X86_64) {
20 // 64-bit immediates aren't allowed on "ADD", nor are
21 // unsigned 32-bit ones, so make the template parameter
22 // fit in a 32-bit signed int.
23 // These values were chosen so that the lower 32-bits overflow
24 // and we can see the upper half of the 64-bit input increment.
25 auto result = add!(long, 2_000_000_000)(21_000_000_000);
26 assert(result == 23_000_000_000);
27 }
28 }