On 05/20/09 10:40:02, Richard Guenther wrote: > Gary wrote: > > Above, __emutls_get_address() is called twice, with > > the same argument. I was surprised to see that the optimizer > > (GCC 4.3.2) didn't notice this and use CSE to avoid the second > > redundant call, because emultls_get_address is defined as > > a "const" function. > > This is likely because the libcall lacks a REG_EQUAL note (or > we lack something to put there). Tree level CSE would catch > it, but it doesn't see these function calls.
Understood. Do you/others happen to know who is the maintainer of the TLS emulation? I tried a simple test case that works with the native TLS support, but it SEGV's when using TLS emulation. Perhaps a cockpit error on my part, but I'd like to see if I can use the TLS emulation for our purposes, and a first step is to get the example to work. thanks, - Gary
