Remove fast log exp and pow methods introduced in #992

NOTICE

@@ -43,8 +43,3 @@ the following terms:
 
   Copyright (c) the V8 project authors
   The 3-Clause BSD License (https://opensource.org/licenses/BSD-3-Clause)
-
-* Arm Optimized Routines: https://github.com/ARM-software/optimized-routines
-
-  Copyright (c) Arm Limited
-  The MIT License (https://opensource.org/licenses/MIT)

examples/mandelbrot/build/optimized.wat

@@ -1,133 +1,136 @@
 (module
- (type $FUNCSIG$viiii (func (param i32 i32 i32 i32)))
- (type $FUNCSIG$dd (func (param f64) (result f64)))
- (type $FUNCSIG$v (func))
+ (type $f64_=>_f64 (func (param f64) (result f64)))
+ (type $i32_i32_i32_i32_=>_none (func (param i32 i32 i32 i32)))
  (import "env" "memory" (memory $0 0))
  (import "Math" "log" (func $~lib/bindings/Math/log (param f64) (result f64)))
  (import "Math" "log2" (func $~lib/bindings/Math/log2 (param f64) (result f64)))
  (export "memory" (memory $0))
  (export "computeLine" (func $assembly/index/computeLine))
- (func $assembly/index/computeLine (; 2 ;) (type $FUNCSIG$viiii) (param $0 i32) (param $1 i32) (param $2 i32) (param $3 i32)
+ (func $assembly/index/computeLine (; 2 ;) (param $0 i32) (param $1 i32) (param $2 i32) (param $3 i32)
   (local $4 f64)
   (local $5 f64)
-  (local $6 f64)
+  (local $6 i32)
   (local $7 i32)
-  (local $8 i32)
+  (local $8 f64)
   (local $9 f64)
   (local $10 f64)
   (local $11 f64)
   (local $12 f64)
   (local $13 f64)
   (local $14 f64)
-  (local $15 f64)
-  local.get $1
-  f64.convert_i32_u
-  local.tee $9
-  f64.const 0.625
-  f64.mul
   local.get $0
   f64.convert_i32_u
   local.get $2
   f64.convert_i32_u
-  local.tee $6
   f64.const 0.5
   f64.mul
   f64.sub
   f64.const 10
-  f64.const 3
-  local.get $9
-  f64.mul
-  f64.const 4
+  local.get $1
+  i32.const 3
+  i32.mul
+  local.tee $6
+  local.get $2
+  i32.const 2
+  i32.shl
+  local.tee $2
   local.get $6
-  f64.mul
-  f64.min
+  local.get $2
+  i32.lt_s
+  select
+  f64.convert_i32_s
   f64.div
-  local.tee $10
+  local.tee $9
+  f64.mul
+  local.set $10
+  local.get $1
+  f64.convert_i32_u
+  f64.const 0.625
   f64.mul
-  local.set $11
-  local.get $10
+  local.get $9
   f64.mul
-  local.set $13
+  local.set $12
   local.get $0
   local.get $1
   i32.mul
   i32.const 1
   i32.shl
-  local.set $0
+  local.set $2
   f64.const 1
   local.get $3
   f64.convert_i32_u
-  local.tee $6
   f64.div
-  local.set $14
-  f64.const 8
-  local.get $6
-  f64.min
-  local.set $15
-  loop $loop|0
-   block $break|0
-    local.get $8
-    local.get $1
-    i32.ge_u
-    br_if $break|0
-    local.get $8
+  local.set $13
+  i32.const 8
+  local.get $3
+  i32.const 8
+  local.get $3
+  i32.lt_u
+  select
+  local.set $0
+  i32.const 0
+  local.set $6
+  loop $for-loop|0
+   local.get $6
+   local.get $1
+   i32.lt_u
+   if
+    local.get $6
     f64.convert_i32_u
-    local.get $10
+    local.get $9
     f64.mul
-    local.get $13
+    local.get $12
     f64.sub
-    local.set $12
-    f64.const 0
-    local.set $4
+    local.set $11
     f64.const 0
+    local.tee $4
     local.set $5
     i32.const 0
     local.set $7
-    loop $continue|1
-     block $break|1
-      local.get $4
-      local.get $4
-      f64.mul
-      local.tee $9
-      local.get $5
-      local.get $5
-      f64.mul
-      local.tee $6
-      f64.add
-      f64.const 4
-      f64.le
-      i32.eqz
-      br_if $break|1
-      f64.const 2
-      local.get $4
-      f64.mul
-      local.get $5
-      f64.mul
-      local.get $11
-      f64.add
-      local.set $5
-      local.get $9
-      local.get $6
-      f64.sub
-      local.get $12
-      f64.add
-      local.set $4
-      local.get $7
-      local.get $3
-      i32.ge_u
-      br_if $break|1
-      local.get $7
-      i32.const 1
-      i32.add
-      local.set $7
-      br $continue|1
+    loop $while-continue|1
+     local.get $4
+     local.get $4
+     f64.mul
+     local.tee $14
+     local.get $5
+     local.get $5
+     f64.mul
+     local.tee $8
+     f64.add
+     f64.const 4
+     f64.le
+     if
+      block $while-break|1
+       f64.const 2
+       local.get $4
+       f64.mul
+       local.get $5
+       f64.mul
+       local.get $10
+       f64.add
+       local.set $5
+       local.get $14
+       local.get $8
+       f64.sub
+       local.get $11
+       f64.add
+       local.set $4
+       local.get $7
+       local.get $3
+       i32.ge_u
+       br_if $while-break|1
+       local.get $7
+       i32.const 1
+       i32.add
+       local.set $7
+       br $while-continue|1
+      end
      end
     end
-    loop $continue|2
+    loop $while-continue|2
      local.get $7
-     f64.convert_i32_u
-     local.get $15
-     f64.lt
+     local.get $0
+     i32.lt_u
      if
       local.get $4
       local.get $4
@@ -136,30 +139,28 @@
       local.get $5
       f64.mul
       f64.sub
-      local.get $12
+      local.get $11
       f64.add
       f64.const 2
       local.get $4
       f64.mul
       local.get $5
       f64.mul
-      local.get $11
+      local.get $10
       f64.add
       local.set $5
       local.set $4
       local.get $7
       i32.const 1
       i32.add
       local.set $7
-      br $continue|2
+      br $while-continue|2
      end
     end
-    i32.const 2047
-    local.set $2
-    local.get $8
+    local.get $6
     i32.const 1
     i32.shl
-    local.get $0
+    local.get $2
     i32.add
     local.get $4
     local.get $4
@@ -168,7 +169,7 @@
     local.get $5
     f64.mul
     f64.add
-    local.tee $6
+    local.tee $8
     f64.const 1
     f64.gt
     if (result i32)
@@ -178,32 +179,29 @@
      i32.add
      f64.convert_i32_u
      f64.const 0.5
-     local.get $6
+     local.get $8
      call $~lib/bindings/Math/log
      f64.mul
      call $~lib/bindings/Math/log2
      f64.sub
-     local.get $14
+     local.get $13
      f64.mul
      f64.const 0
      f64.max
      f64.const 1
      f64.min
      f64.mul
      i32.trunc_f64_u
-    else     
+    else
      i32.const 2047
     end
     i32.store16
-    local.get $8
+    local.get $6
     i32.const 1
     i32.add
-    local.set $8
-    br $loop|0
+    local.set $6
+    br $for-loop|0
    end
   end
  )
- (func $null (; 3 ;) (type $FUNCSIG$v)
-  nop
- )
 )