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...++++++----------- arch/powerpc/include/asm/barrier.h | 33 ++++------- arch/s390/include/asm/barrier.h | 23 ++++---- arch/sh/include/asm/barrier.h | 3 +- arch/sh/include/asm/cmpxchg-grb.h | 22 ++++++++ arch/sh/include/asm/cmpxchg-irq.h | 11 ++++ arch/sh/include/asm/cmpxchg-llsc.h | 25 +-------- arch/sh/include/asm/cmpxchg-xchg.h | 51 +++++++++++++++++ arch/sh/include/asm/cmpxchg.h | 3 + arch/sparc/include/asm/barrier_32.h | 1 - arch/sparc/include/asm/barrier_64.h | 29 ++-------- arch/sparc/include/asm/processor.h | 3 - arch/tile/include/asm/barrier...

...++++++----------- arch/powerpc/include/asm/barrier.h | 33 ++++------- arch/s390/include/asm/barrier.h | 23 ++++---- arch/sh/include/asm/barrier.h | 3 +- arch/sh/include/asm/cmpxchg-grb.h | 22 ++++++++ arch/sh/include/asm/cmpxchg-irq.h | 11 ++++ arch/sh/include/asm/cmpxchg-llsc.h | 25 +-------- arch/sh/include/asm/cmpxchg-xchg.h | 51 +++++++++++++++++ arch/sh/include/asm/cmpxchg.h | 3 + arch/sparc/include/asm/barrier_32.h | 1 - arch/sparc/include/asm/barrier_64.h | 29 ++-------- arch/sparc/include/asm/processor.h | 3 - arch/tile/include/asm/barrier...

...----- arch/powerpc/include/asm/barrier.h | 33 ++++------ arch/s390/include/asm/barrier.h | 23 ++++--- arch/sh/include/asm/barrier.h | 3 +- arch/sh/include/asm/cmpxchg-grb.h | 22 +++++++ arch/sh/include/asm/cmpxchg-irq.h | 11 ++++ arch/sh/include/asm/cmpxchg-llsc.h | 25 +------- arch/sh/include/asm/cmpxchg-xchg.h | 51 ++++++++++++++++ arch/sh/include/asm/cmpxchg.h | 3 + arch/sparc/include/asm/barrier_32.h | 1 - arch/sparc/include/asm/barrier_64.h | 29 ++------- arch/sparc/include/asm/processor.h | 3 - arch/tile/incl...

...----- arch/powerpc/include/asm/barrier.h | 33 ++++------ arch/s390/include/asm/barrier.h | 23 ++++--- arch/sh/include/asm/barrier.h | 3 +- arch/sh/include/asm/cmpxchg-grb.h | 22 +++++++ arch/sh/include/asm/cmpxchg-irq.h | 11 ++++ arch/sh/include/asm/cmpxchg-llsc.h | 25 +------- arch/sh/include/asm/cmpxchg-xchg.h | 51 ++++++++++++++++ arch/sh/include/asm/cmpxchg.h | 3 + arch/sparc/include/asm/barrier_32.h | 1 - arch/sparc/include/asm/barrier_64.h | 29 ++------- arch/sparc/include/asm/processor.h | 3 - arch/tile/incl...

> > The problem is with libgcc2, which contains libcalls needed to support > some operations > your processor cant directly do. > Yes, I mix up libgcc2 with libcpp... I have advanced a little, commenting out the fp functions. Now, it stucks at unwind-dw2.c. MipsISelLowering.cpp gives the error: Unsupported calling convention. By the way, I understand that these functions are

# RFC: Atomic LL/SC loops in LLVM revisited ## Summary This proposal gives a brief overview of the challenges of lowering to LL/SC loops and details the approach I am taking for RISC-V. Beyond getting feedback on that work, my intention is to find consensus on moving other backends towards a similar approach and sharing common code where feasible. Scroll down to 'Questions' for a summary

Hi Julio, On Mon, Jul 7, 2008 at 6:53 AM, Julio <julio.martin.hidalgo at gmail.com> wrote: > And one last thing, the problem seems to be related to libcpp. Using only C > frontend will work? The problem is with libgcc2, which contains libcalls needed to support some operations your processor cant directly do. >> Actually, I don't need fp, there is any way to disable?

...de/asm/barrier.h | 33 ++++------ > arch/s390/include/asm/barrier.h | 23 ++++--- > arch/sh/include/asm/barrier.h | 3 +- > arch/sh/include/asm/cmpxchg-grb.h | 22 +++++++ > arch/sh/include/asm/cmpxchg-irq.h | 11 ++++ > arch/sh/include/asm/cmpxchg-llsc.h | 25 +------- > arch/sh/include/asm/cmpxchg-xchg.h | 51 ++++++++++++++++ > arch/sh/include/asm/cmpxchg.h | 3 + > arch/sparc/include/asm/barrier_32.h | 1 - > arch/sparc/include/asm/barrier_64.h | 29 ++------- > arch/sparc/include/asm/processor.h...

> > > "While the processor may spin and attempt the atomic operation more than > > > once before it is successful, research indicates this is extremely > > > uncommon." I don't understand this sentence, what do you mean? > > > > I'm not sure I can pinpoint the paper from which the statement is based, > > but I seem to recall something