Re: When is the hardware related register is allocated?

2011-11-13 Thread Ian Lance Taylor
Feng LI writes: > I'm working on a gcc backend, we need to use the information of the > allocated hardware register to generate the code from builtin > functions. But at the context in ix86_expand_builtin, where I could > get the operands which the registers are pseudo registers > (REGNO(op)>FIRS

a question about IVOPTS: find_interesting_uses_address

2011-11-13 Thread Yuehai Du
Hi i found IVOPTS didn't work well on some case if the loop contain some unaligned access. it didn't take this kind of memory access into account because this check in function:find_interesting_uses_address      /* Moreover, on strict alignment platforms, check that it is         sufficiently a

When is the hardware related register is allocated?

2011-11-13 Thread Feng LI
Hi, I'm working on a gcc backend, we need to use the information of the allocated hardware register to generate the code from builtin functions. But at the context in ix86_expand_builtin, where I could get the operands which the registers are pseudo registers (REGNO(op)>FIRST_PSEUDO_REGISTER). Do

Re: [PATCH, testsuite]: Do not run simulate-thread on alpha*-*-linux*

2011-11-13 Thread Richard Henderson
On 11/12/2011 07:38 AM, Uros Bizjak wrote: > On Fri, Nov 11, 2011 at 8:58 PM, Dominique Dhumieres > wrote: > >> For the record, Jakub's comment on IRC: >> >>> with older gdb you simply had to find the stwcx >>> or whatever SC insn is, put a breakpoint after >>> it and continue instead of single