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view tests/mini/asm9.d @ 1168:ab186e535e72
A different fix to #218 and DMD2682 that does not lead to constant folding regressions.
Fixes run/const_15, run/c/const_16_B.
The price is removing the lvalueness of struct literals. If it turns out too
much code depends on this behavior or we don't want to break with DMD, we
could keep struct literals as lvalues and instead convert struct literals used
as expression initializers into struct initializers.
author | Christian Kamm <kamm incasoftware de> |
---|---|
date | Sun, 29 Mar 2009 11:43:45 +0200 |
parents | 523bf4f166bc |
children |
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module asm9; version(X86) version = DoSome; else version(X86_64) version = DoSome; T add(T, T t)(T a) { asm { add a, t; } return a; } void main() { version (DoSome) { assert(add!(ubyte, 20)(10) == 30); assert(add!(ushort, 20_000)(10_000) == 30_000); assert(add!(uint, 2_000_000)(1_000_000) == 3_000_000); } version(X86_64) { // 64-bit immediates aren't allowed on "ADD", nor are // unsigned 32-bit ones, so make the template parameter // fit in a 32-bit signed int. // These values were chosen so that the lower 32-bits overflow // and we can see the upper half of the 64-bit input increment. auto result = add!(long, 2_000_000_000)(21_000_000_000); assert(result == 23_000_000_000); } }