* hooks.c (hook_bool_mode_rtx_true): New function.
* hooks.h (hook_bool_mode_rtx_true): Declare.
* toplev.c (compile_file): Call output_shared_constant_pool.
* varasm.c (shared_constant_pool): New variable.
(assemble_start_function, assemble_end_function): Remove arguments
from call to output_constant_pool.
(create_constant_pool): New function, split out from...
(init_varasm_status): ...here.
(force_const_mem): Choose between the shared and per-function constant
pools. Set current_function_uses_const_pool when reusing old entries
as well as when creating new ones.
(mark_constant): Ignore data argument.
(mark_constants): Remove pool argument.
(mark_constant_pool): Likewise. Use current_function_uses_const_pool
to decide whether the function uses a constant pool.
(output_constant_pool_contents): New function, split out from...
(output_constant_pool): ...here.
(output_shared_constant_pool): New function.
(init_varasm_once): Initialize shared_constant_pool.
* output.h (output_constant_pool): Delete.
(output_shared_constant_pool): Declare.
* config/s390/s390-protos.h (s390_output_constant_pool): Delete.
* config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
From-SVN: r111804
