From 952c0f74da98efd7fcb37b2cfe3c17518a619088 Mon Sep 17 00:00:00 2001
From: Evandro Menezes <e.menezes@samsung.com>
Date: Mon, 19 Oct 2015 18:31:48 -0500
Subject: [PATCH] Replace insn to zero up SIMD registers
gcc/
* config/aarch64/aarch64.md
(*movhf_aarch64): Add "movi %0, #0" to zero up register.
(*movsf_aarch64): Likewise and add "simd" and "fp" attributes.
(*movdf_aarch64): Likewise.
---
gcc/config/aarch64/aarch64.md | 33 ++++++++++++++++++++-------------
1 file changed, 20 insertions(+), 13 deletions(-)
@@ -1163,12 +1163,13 @@
)
(define_insn "*movhf_aarch64"
- [(set (match_operand:HF 0 "nonimmediate_operand" "=w, ?r,w,w,m,r,m ,r")
- (match_operand:HF 1 "general_operand" "?rY, w,w,m,w,m,rY,r"))]
+ [(set (match_operand:HF 0 "nonimmediate_operand" "=w, w,?r,w,w,m,r,m ,r")
+ (match_operand:HF 1 "general_operand" "?rY,Y, w,w,m,w,m,rY,r"))]
"TARGET_FLOAT && (register_operand (operands[0], HFmode)
|| aarch64_reg_or_fp_zero (operands[1], HFmode))"
"@
mov\\t%0.h[0], %w1
+ movi\\t%0.4h, #0
umov\\t%w0, %1.h[0]
mov\\t%0.h[0], %1.h[0]
ldr\\t%h0, %1
@@ -1176,19 +1177,20 @@
ldrh\\t%w0, %1
strh\\t%w1, %0
mov\\t%w0, %w1"
- [(set_attr "type" "neon_from_gp,neon_to_gp,neon_move,\
+ [(set_attr "type" "neon_from_gp,neon_move,neon_to_gp,neon_move,\
f_loads,f_stores,load1,store1,mov_reg")
- (set_attr "simd" "yes,yes,yes,*,*,*,*,*")
- (set_attr "fp" "*,*,*,yes,yes,*,*,*")]
+ (set_attr "simd" "yes,yes,yes,yes,*,*,*,*,*")
+ (set_attr "fp" "*,*,*,*,yes,yes,*,*,*")]
)
(define_insn "*movsf_aarch64"
- [(set (match_operand:SF 0 "nonimmediate_operand" "=w, ?r,w,w ,w,m,r,m ,r")
- (match_operand:SF 1 "general_operand" "?rY, w,w,Ufc,m,w,m,rY,r"))]
+ [(set (match_operand:SF 0 "nonimmediate_operand" "=w, w,?r,w,w ,w,m,r,m ,r")
+ (match_operand:SF 1 "general_operand" "?rY,Y, w,w,Ufc,m,w,m,rY,r"))]
"TARGET_FLOAT && (register_operand (operands[0], SFmode)
|| aarch64_reg_or_fp_zero (operands[1], SFmode))"
"@
fmov\\t%s0, %w1
+ movi\\t%0.2s, #0
fmov\\t%w0, %s1
fmov\\t%s0, %s1
fmov\\t%s0, %1
@@ -1197,17 +1199,20 @@
ldr\\t%w0, %1
str\\t%w1, %0
mov\\t%w0, %w1"
- [(set_attr "type" "f_mcr,f_mrc,fmov,fconsts,\
- f_loads,f_stores,load1,store1,mov_reg")]
+ [(set_attr "type" "f_mcr,neon_move,f_mrc,fmov,fconsts,\
+ f_loads,f_stores,load1,store1,mov_reg")
+ (set_attr "simd" "*,yes,*,*,*,*,*,*,*,*")
+ (set_attr "fp" "*,*,*,yes,yes,yes,yes,*,*,*")]
)
(define_insn "*movdf_aarch64"
- [(set (match_operand:DF 0 "nonimmediate_operand" "=w, ?r,w,w ,w,m,r,m ,r")
- (match_operand:DF 1 "general_operand" "?rY, w,w,Ufc,m,w,m,rY,r"))]
+ [(set (match_operand:DF 0 "nonimmediate_operand" "=w, w,?r,w,w ,w,m,r,m ,r")
+ (match_operand:DF 1 "general_operand" "?rY,Y, w,w,Ufc,m,w,m,rY,r"))]
"TARGET_FLOAT && (register_operand (operands[0], DFmode)
|| aarch64_reg_or_fp_zero (operands[1], DFmode))"
"@
fmov\\t%d0, %x1
+ movi\\t%d0, #0
fmov\\t%x0, %d1
fmov\\t%d0, %d1
fmov\\t%d0, %1
@@ -1216,8 +1221,10 @@
ldr\\t%x0, %1
str\\t%x1, %0
mov\\t%x0, %x1"
- [(set_attr "type" "f_mcr,f_mrc,fmov,fconstd,\
- f_loadd,f_stored,load1,store1,mov_reg")]
+ [(set_attr "type" "f_mcr,neon_move,f_mrc,fmov,fconstd,\
+ f_loadd,f_stored,load1,store1,mov_reg")
+ (set_attr "simd" "*,yes,*,*,*,*,*,*,*,*")
+ (set_attr "fp" "*,*,*,yes,yes,yes,yes,*,*,*")]
)
(define_insn "*movtf_aarch64"
--
2.6.3