On 12/07/2015 06:03 PM, Nathan Sidwell wrote:
On 12/07/15 11:18, Nathan Sidwell wrote:
calls to no return fns can cause problems with the PTX JIT. It doesn't
understand their no-return nature and can erroneously think there are
unexitable
loops (depending on the precise placement of bbs). It can get so
upset it
segfaults.
gcc.dg/pr68671.c started causing this last week, with what looked like
incomplete jump threading.
Bernd, I meant to ask if you recalled previous tests you failed because
of this problem? I'm retesting
gcc.c-torture/compile/920723-1.c
gcc.c-torture/compile/pr33855.c
gcc.c-torture/execute/981019-1.c
I don't completely recall what reasons there were for ptxas crashes (or
if we indeed reliably figured out the causes). Uninitialized registers
come to mind, but I don't think I recall issues with noreturn.
Bernd
