Ping. Contains only changes outside config/arm. http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01509.html
Bernd On 03/23/2011 04:46 PM, Bernd Schmidt wrote: > I've discovered a problem with -mlong-calls on ARM. The bug was first > reported against a new target, but I'd copied the relevant code from the > ARM backend. > > We use current_function_section in arm_is_long_call_p to decide whether > we're calling something that goes into the same section. The problem > with this is that current_function_section can only be used during > final, since it relies on the global variable in_cold_section_p which is > set up only in assemble_start_function. On ARM, this problem manifests > as short-calls when a long-call would be required; in the other port it > was an "insn doesn't satisfy its constraints" error. > > The following patch is against 4.5, since the problem appears hidden in > mainline (the initialization of first_function_block_is_cold has > changed). Ok for trunk and branches after arm-linux tests complete? > * function.c (init_function_start): Call decide_function_section. > * varasm.c (decide_function_section): New function. > (assemble_start_function): When not using > flag_reorder_blocks_and_partition, don't compute in_cold_section_p > or first_function_block_is_cold. > * rtl.h (decide_function_section): Declare. > > * gcc.target/arm/cold-lc.c: New test.
