constraints in define_expand

[ was: Re: combination of read/write and earlyclobber constraint modifier ] On 02-07-14 17:52, Jeff Law wrote: (by the way, in the same aarch64-simd.md file, I noticed some define_expand with constraints, that looks strange) It sometimes happens when a define_insn is converted into a

Re: about emit_move_insn in define_expand

mbay, Powai, Mumbai 400 076, India. email : u...@cse.iitb.ac.in homepage: http://www.cse.iitb.ac.in/~uday phone : Office - 91 (22) 2576 7717 Res. - 91 (22) 2576 8717, 91 (22) 2572 0288 -- > (define_expand

Re: about emit_move_insn in define_expand

(define_expand "movsi" [(set (match_operand:SI 0 "nonimmediate_operand" "") (match_operand:SI 1 "general_operand" "") )] "" { if(GET_CODE(operands[0])==MEM && GET_CODE(operands[1])!=REG) {

about emit_move_insn in define_expand

Hello, Dr. Uday Khedker: I just found that emit_move_insn function can't be used in define_expand pattern in the spim gcc4.0.2 platform. It will cause the Segmentation Fault. Something like recursion happened. I changed the define_expand "movsi" from: (define_expand "

Re: define_expand

(define_expand "negsf2" [(set (match_operand:SF 0 "gpc_reg_operand" "") (neg:SF (match_operand:SF 1 "gpc_reg_operand" "")))] "TARGET_HARD_FLOAT" "") (define_insn "*negsf2" [(set (match_operand:S

Re: define_expand

On Tue, Aug 15, 2006 at 10:52:01AM -0700, Michael Eager wrote: > (define_expand "negsf2" > [(set (match_operand:SF 0 "gpc_reg_operand" "") > (neg:SF (match_operand:SF 1 "gpc_reg_operand" "")))] > "TARGET_HARD_FLOAT"

define_expand

I'm having trouble understanding part of the machine description for PowerPC floating point operations. There are a number of places where there are pairs of templates, one with define_expand, the other with define_insn or define_insn_and_split. For example, the fp negate temp

Emit insns in the preparation statements of define_expand

Hey, It's very sorry. I have just found the answer just in the context. It's a so stupid question. DONE Use the DONE macro to end RTL generation for the pattern. The only RTL insns resulting from the pattern on this occasion will be those already emitted by explicit calls to emit_insn within the

Emit insns in the preparation statements of define_expand

Hello, I have a doubt here about define_expand and would be appreciated for your any help. The internals say, Usually these statements prepare temporary registers for use as internal operands in the RTL template, but they can also generate RTL insns directly by calling routines such as emit_insn

Splitting an immediate using define_expand

Hi, I am trying to separate move immediates that require more than 16 bits into two instructions that set the high and low 16 bits of a register respectively. Here is my define_expand: (define_expand "movsi" [(set (match_operand:SI 0 "nonimmediate_operand" ""