Re: [avr-gcc-list] builtins-error.c test fails for avr

[Georg-Johann Lay]

Am 04/21/2015 um 03:24 PM schrieb Georg-Johann Lay:
> Without fat LTO objects, the compiler just puts gimple IR into the objects,
> there is no asm code.  Built-in functions are represented by their decls as
> provided by targetm.builtin_decl().  This means there is no expansion of tree
> to rtl.
> That expansion is as late as possible (in principle it could even be in some

Should read instead:

That check for compile-time constant is as late as possible, namely at tree-rtl 
lowering in targetm.expand_builtin (in principle it could even be in some

> rtl pass; the assumption is that if the respective value has not been resolved
> to integer_cst then the same applies to later passes.