On 25 March 2013 18:36, Johannes Pfau <nos...@example.com> wrote: > In runnable/test42.d test7290 checks if a scope delegate is really > allocated on the stack. To verify this it obtains the EBP pointer and > compares that to the delegates .ptr. > > The problem is that as soon as we enable optimization gcc no > longer adjusts the EBP pointer when calling the helper functions and > the test fails... > > This test seems to be very fragile in general so what should we do > about this? > > > BTW: I introduced a small typo in test7290 when porting to GCC asm: > The test in the main test7290 function should check "assert(dg.ptr <= > p);", not "assert(p < dg.ptr);" >
1. Revert your typo. 2. Raise with a thread in dmd-internals about it. -O2 in GDC triggers -fomit-frame-pointer. I'm 90% certain that Walter will say that any function with assembly inside requires that a frame pointer must always be present (except in naked function), but that is absolute rubbish. For x86_64 (at least), the ABI encourages the absence of a frame pointer. Regards -- Iain Buclaw *(p < e ? p++ : p) = (c & 0x0f) + '0';
