X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcompiler%2Fmips%2Farith.lisp;h=70649f59628123f3dcd737035a0868abf82e68db;hb=5745b5a5b2e3b967bf3876b4306f31b3c78495fa;hp=8be4e93dcbf1b58384b5a4ae7ce71031dd75cba1;hpb=1907ad030ca773162bcd9ff90fdc485a035591f4;p=sbcl.git

diff --git a/src/compiler/mips/arith.lisp b/src/compiler/mips/arith.lisp
index 8be4e93..70649f5 100644
--- a/src/compiler/mips/arith.lisp
+++ b/src/compiler/mips/arith.lisp
@@ -227,7 +227,7 @@
     (inst bgez amount positive)
     (inst subu ndesc zero-tn amount)
     (inst slt temp ndesc 32)
-    (inst bne temp zero-tn done)
+    (inst bne temp done)
     (inst srl result number ndesc)
     (inst b done)
     (move result zero-tn t)
@@ -253,7 +253,7 @@
     (inst bgez amount positive)
     (inst subu ndesc zero-tn amount)
     (inst slt temp ndesc 31)
-    (inst bne temp zero-tn done)
+    (inst bne temp done)
     (inst sra result number ndesc)
     (inst b done)
     (inst sra result number 31)
@@ -416,7 +416,7 @@
   (:save-p :compute-only)
   (:generator 11
     (let ((zero (generate-error-code vop division-by-zero-error x y)))
-      (inst beq y zero-tn zero))
+      (inst beq y zero))
     (inst nop)
     (inst div x y)
     (inst mflo temp)
@@ -432,7 +432,7 @@
   (:save-p :compute-only)
   (:generator 12
     (let ((zero (generate-error-code vop division-by-zero-error x y)))
-      (inst beq y zero-tn zero))
+      (inst beq y zero))
     (inst nop)
     (inst divu x y)
     (inst mflo q)
@@ -447,7 +447,7 @@
   (:save-p :compute-only)
   (:generator 12
     (let ((zero (generate-error-code vop division-by-zero-error x y)))
-      (inst beq y zero-tn zero))
+      (inst beq y zero))
     (inst nop)
     (inst div x y)
     (inst mflo q)
@@ -531,8 +531,8 @@
              (inst slt temp x y)
              (inst sltu temp x y))
          (if not-p
-             (inst beq temp zero-tn target)
-             (inst bne temp zero-tn target))))
+             (inst beq temp target)
+             (inst bne temp target))))
   (inst nop))
 
 (define-conditional-vop >
@@ -546,15 +546,15 @@
                (inst slt temp x y)
                (inst sltu temp x y))
            (if not-p
-               (inst bne temp zero-tn target)
-               (inst beq temp zero-tn target))))
+               (inst bne temp target)
+               (inst beq temp target))))
         (t
          (if signed
              (inst slt temp y x)
              (inst sltu temp y x))
          (if not-p
-             (inst beq temp zero-tn target)
-             (inst bne temp zero-tn target))))
+             (inst beq temp target)
+             (inst bne temp target))))
   (inst nop))
 
 ;;; EQL/FIXNUM is funny because the first arg can be of any type, not just a
@@ -618,27 +618,6 @@
 
 ;;;; 32-bit logical operations
 
-(define-vop (merge-bits)
-  (:translate merge-bits)
-  (:args (shift :scs (signed-reg unsigned-reg))
-         (prev :scs (unsigned-reg))
-         (next :scs (unsigned-reg)))
-  (:arg-types tagged-num unsigned-num unsigned-num)
-  (:temporary (:scs (unsigned-reg) :to (:result 0)) temp)
-  (:temporary (:scs (unsigned-reg) :to (:result 0) :target result) res)
-  (:results (result :scs (unsigned-reg)))
-  (:result-types unsigned-num)
-  (:policy :fast-safe)
-  (:generator 4
-    (let ((done (gen-label)))
-      (inst beq shift done)
-      (inst srl res next shift)
-      (inst subu temp zero-tn shift)
-      (inst sll temp prev temp)
-      (inst or res res temp)
-      (emit-label done)
-      (move result res))))
-
 (define-vop (shift-towards-someplace)
   (:policy :fast-safe)
   (:args (num :scs (unsigned-reg))