On 09/15/2016 06:16 AM, Paolo Bonzini wrote: > This comes from free from unifying tcg_reg_alloc_mov and > tcg_reg_alloc_movi's handling of TEMP_VAL_CONST. It triggers > often on moves to cc_dst, such as the following translation > of "sub $0x3c,%esp": > > before: after: > subl $0x3c,%ebp subl $0x3c,%ebp > movl %ebp,0x10(%r14) movl %ebp,0x10(%r14) > movl $0x3c,%ebx movl $0x3c,0x2c(%r14) > movl %ebx,0x2c(%r14)
What's the input here? From just this snippet it looks as if we should have converted both of them to an immediate store. r~
