From ac2b7f8d448c36c5be6b23f8e906c0f275d0092e Mon Sep 17 00:00:00 2001 From: ceriel Date: Thu, 2 Mar 1989 18:56:05 +0000 Subject: [PATCH] replace more multiplies by shifts --- util/opt/patterns | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/util/opt/patterns b/util/opt/patterns index e59091444..5e0f1c23c 100644 --- a/util/opt/patterns +++ b/util/opt/patterns @@ -8,8 +8,10 @@ dec loc sbi $3==w: loc $2+1 sbi 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 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 adp : adp $1+$2 adp lof : lof $1+$2 @@ -219,6 +221,22 @@ 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 +ldc mli $1==2 && $2==2*w: loc 1 sli 2*w +ldc mli $1==4 && $2==2*w: loc 2 sli 2*w +ldc mli $1==8 && $2==2*w: loc 3 sli 2*w +ldc mli $1==16 && $2==2*w: loc 4 sli 2*w +ldc mli $1==32 && $2==2*w: loc 5 sli 2*w +ldc mli $1==64 && $2==2*w: loc 6 sli 2*w +ldc mli $1==128 && $2==2*w: loc 7 sli 2*w +ldc mli $1==256 && $2==2*w: loc 8 sli 2*w +ldc mlu $1==2 && $2==2*w: loc 1 slu 2*w +ldc mlu $1==4 && $2==2*w: loc 2 slu 2*w +ldc mlu $1==8 && $2==2*w: loc 3 slu 2*w +ldc mlu $1==16 && $2==2*w: loc 4 slu 2*w +ldc mlu $1==32 && $2==2*w: loc 5 slu 2*w +ldc mlu $1==64 && $2==2*w: loc 6 slu 2*w +ldc mlu $1==128 && $2==2*w: loc 7 slu 2*w +ldc mlu $1==256 && $2==2*w: loc 8 slu 2*w loc adi !defined($2): adi $1 loc sbi !defined($2): sbi $1 loc mli !defined($2): mli $1 @@ -367,8 +385,10 @@ 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 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 +/* 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 tne : teq teq zne : zeq $2 -- 2.34.1