Re: [PATCH] Allow libcalls for complex memcpy when optimizing for size.

On 10/31/19 5:41 PM, Jim Wilson wrote: > The RISC-V backend wants to use a libcall when optimizing for size if > more than 6 instructions are needed. Emit_move_complex asks for no > libcalls. This case requires 8 insns for rv64 and 16 insns for rv32, > so we get fallback code that emits a loop.

Re: [PATCH] Allow libcalls for complex memcpy when optimizing for size.

On Thu, Oct 31, 2019 at 4:41 PM Jim Wilson wrote: > gcc/ > PR middle-end/92263 > * expr.c (emit_move_complex): Only use BLOCK_OP_NO_LIBCALL when > optimize_insn_for_speed_p is true. > > gcc/testsuite/ > PR middle-end/92263 > * gcc.dg/pr92263.

[PATCH] Allow libcalls for complex memcpy when optimizing for size.

The RISC-V backend wants to use a libcall when optimizing for size if more than 6 instructions are needed. Emit_move_complex asks for no libcalls. This case requires 8 insns for rv64 and 16 insns for rv32, so we get fallback code that emits a loop. Commit_one_edge_insertion doesn't allow code in