This patch prevents the compiler from calling the IEEE 128-bit emulation functions with the vector value in both GPRs and vector registers due to the fact that the library function did not have a prototype.
I have built the compiler with this patch and the previous subpatches (1-4). I have bootstrapped the compiler with all 16 subpatches installed, and there were no regressions. Is it ok to install in the trunk? 2015-10-22 Michael Meissner <meiss...@linux.vnet.ibm.com> * config/rs6000/rs6000.c (init_cumulative_args): Initialize libcall field in CUMULATIVE_ARGS. (rs6000_function_arg): Treat library functions as if they had prototypes to prevent IEEE 128-bit support functions from passing arguments in both GPRs and vector registers. (rs6000_arg_partial_bytes): Likewise. -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meiss...@linux.vnet.ibm.com, phone: +1 (978) 899-4797