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view tests/mini/nested16.d @ 1275:bedf0bfb8fdb
Implement first D-specific optimization pass: -simplify-drtcalls.
It uses the machinery of the standard -simplify-libcalls pass, but optimizes
calls to the D runtime instead of calls to C libraries.
At the moment, these optimizations are implemented by this pass:
- Avoid the runtime call for `arr.length = newlen` if it can determine that
the new length isn't longer than the old one.
- Ditto for `cast(T[]) arr` if it will clearly always succeed.
(e.g. if the length of the original array is zero, or if the old element
size is a multiple of the new element size)
author | Frits van Bommel <fvbommel wxs.nl> |
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date | Tue, 28 Apr 2009 21:58:06 +0200 |
parents | a34078905d01 |
children |
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module mini.nested16; void main() { int idx = 123; int func(int* idp) { void foo() { void bar(int* idp) { auto c = new class { void mem() { scope(exit) ++*idp; } }; auto dg = () { c.mem(); }; dg(); } bar(idp); ++*idp; } foo(); return ++*idp; } assert(func(&idx) == 126); }