d0p1/ack
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

added patterns for unsigned shifting

Browse source 
added patterns to delay additive operations until after multiplicative,
  this can be useful for some register machines
This commit is contained in:
sater 1984-07-18 11:05:28 +00:00
parent fc59a0d703
commit 0473678491
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
util/opt/patterns
View file

@ -3,6 +3,8 @@ loc adi loc sbi $2==w && $4==w: loc $1-$3 adi w
ldc adi ldc sbi $2==2*w && $4==2*w: ldc $1-$3 adi 2*w ldc adi ldc sbi $2==2*w && $4==2*w: ldc $1-$3 adi 2*w
loc adi loc adi $2==w && $4==w: loc $1+$3 adi w loc adi loc adi $2==w && $4==w: loc $1+$3 adi w
ldc adi ldc adi $2==2*w && $4==2*w: ldc $1+$3 adi 2*w ldc adi ldc adi $2==2*w && $4==2*w: ldc $1+$3 adi 2*w
loc adi loc mli $2==w && $4==w: loc $3 mli w loc $1*$3 adi w
loc adi loc sli $2==w && $4==w && $3==1: loc $3 sli w loc 2*$1 adi w
adp $1==0: adp $1==0:
adp adp : adp $1+$2 adp adp : adp $1+$2
adp lof : lof $1+$2 adp lof : lof $1+$2
@ -167,6 +169,14 @@ loc mli $1==32 && $2==w: loc 5 sli w
loc mli $1==64 && $2==w: loc 6 sli w loc mli $1==64 && $2==w: loc 6 sli w
loc mli $1==128 && $2==w: loc 7 sli w loc mli $1==128 && $2==w: loc 7 sli w
loc mli $1==256 && $2==w: loc 8 sli w loc mli $1==256 && $2==w: loc 8 sli w
loc mlu $1==2 && $2==w: loc 1 slu w
loc mlu $1==4 && $2==w: loc 2 slu w
loc mlu $1==8 && $2==w: loc 3 slu w
loc mlu $1==16 && $2==w: loc 4 slu w
loc mlu $1==32 && $2==w: loc 5 slu w
loc mlu $1==64 && $2==w: loc 6 slu w
loc mlu $1==128 && $2==w: loc 7 slu w
loc mlu $1==256 && $2==w: loc 8 slu w
loc adi !defined($2): adi $1 loc adi !defined($2): adi $1
loc sbi !defined($2): sbi $1 loc sbi !defined($2): sbi $1
loc mli !defined($2): mli $1 loc mli !defined($2): mli $1
@ -314,6 +324,8 @@ loc sbi loc sbi $2==w && $4==w: loc $1+$3 sbi w
ldc sbi ldc sbi $2==2*w && $4==2*w: ldc $1+$3 sbi 2*w ldc sbi ldc sbi $2==2*w && $4==2*w: ldc $1+$3 sbi 2*w
loc sbi loc adi $2==w && $4==w: loc $1-$3 sbi w loc sbi loc adi $2==w && $4==w: loc $1-$3 sbi w
ldc sbi ldc adi $2==2*w && $4==2*w: ldc $1-$3 sbi 2*w ldc sbi ldc adi $2==2*w && $4==2*w: ldc $1-$3 sbi 2*w
loc sbi loc mli $2==w && $4==w: loc $3 mli w loc $1*$3 sbi w
loc sbi loc sli $2==w && $4==w && $3==1: loc $3 sli w loc 2*$1 sbi w
teq teq : tne teq teq : tne
teq tne : teq teq tne : teq
teq zne : zeq $2 teq zne : zeq $2