JavaScriptCore-7600.1.4.11.8.tar.gz

[apple/javascriptcore.git] / offlineasm / arm.rb

diff --git a/offlineasm/arm.rb b/offlineasm/arm.rb
index 3c69ef0264f7bca92119cdc88ef5af40785c42b4..c92243610e3142dad55d7b8dc2cf8ba6b97ab811 100644 (file)
--- a/offlineasm/arm.rb
+++ b/offlineasm/arm.rb
@@ -63,13 +63,15 @@ class SpecialRegister
     end
 end
 
     end
 end
 

-ARM_EXTRA_GPRS = [SpecialRegister.new("r9"), SpecialRegister.new("r8"), SpecialRegister.new("r3")]
+ARM_EXTRA_GPRS = [SpecialRegister.new("r6"), SpecialRegister.new("r10"), SpecialRegister.new("r12")]

 ARM_EXTRA_FPRS = [SpecialRegister.new("d7")]
 ARM_SCRATCH_FPR = SpecialRegister.new("d6")
 
 def armMoveImmediate(value, register)
     # Currently we only handle the simple cases, and fall back to mov/movt for the complex ones.
 ARM_EXTRA_FPRS = [SpecialRegister.new("d7")]
 ARM_SCRATCH_FPR = SpecialRegister.new("d6")
 
 def armMoveImmediate(value, register)
     # Currently we only handle the simple cases, and fall back to mov/movt for the complex ones.

-    if value >= 0 && value < 256
+    if value.is_a? String
+      $asm.puts "mov #{register.armOperand}, (#{value})"
+    elsif value >= 0 && value < 256

         $asm.puts "mov #{register.armOperand}, \##{value}"
     elsif (~value) >= 0 && (~value) < 256
         $asm.puts "mvn #{register.armOperand}, \##{~value}"
         $asm.puts "mov #{register.armOperand}, \##{value}"
     elsif (~value) >= 0 && (~value) < 256
         $asm.puts "mvn #{register.armOperand}, \##{~value}"


@@ -97,13 +99,17 @@ class RegisterID
         when "t3"
             "r4"
         when "t4"
         when "t3"
             "r4"
         when "t4"

-            "r10"
+            "r8"
+        when "t5"
+            "r9"

         when "cfr"
         when "cfr"

-            "r5"
+            isARMv7 ?  "r7" : "r11"

         when "lr"
             "lr"
         when "sp"
             "sp"
         when "lr"
             "lr"
         when "sp"
             "sp"

+        when "pc"
+            "pc"

         else
             raise "Bad register #{name} for ARM at #{codeOriginString}"
         end
         else
             raise "Bad register #{name} for ARM at #{codeOriginString}"
         end


@@ -333,7 +339,7 @@ class Instruction
                 else
                     $asm.puts "adds #{operands[2].armOperand}, #{operands[1].armOperand}, #{operands[0].armOperand}"
                 end
                 else
                     $asm.puts "adds #{operands[2].armOperand}, #{operands[1].armOperand}, #{operands[0].armOperand}"
                 end

-            elsif operands.size == 3 and operands[0].immediate?
+            elsif operands.size == 3 and operands[0].register?

                 raise unless operands[1].register?
                 raise unless operands[2].register?
                 $asm.puts "adds #{armFlippedOperands(operands)}"
                 raise unless operands[1].register?
                 raise unless operands[2].register?
                 $asm.puts "adds #{armFlippedOperands(operands)}"


@@ -451,15 +457,36 @@ class Instruction
             # FIXME: either support this or remove it.
             raise "ARM does not support this opcode yet, #{codeOrigin}"
         when "pop"
             # FIXME: either support this or remove it.
             raise "ARM does not support this opcode yet, #{codeOrigin}"
         when "pop"

-            $asm.puts "pop #{operands[0].armOperand}"
+            operands.each {
+                | op |
+                $asm.puts "pop { #{op.armOperand} }"
+            }

         when "push"
         when "push"

-            $asm.puts "push #{operands[0].armOperand}"
+            operands.each {
+                | op |
+                $asm.puts "push { #{op.armOperand} }"
+            }
+        when "popCalleeSaves"
+            if isARMv7
+                $asm.puts "pop {r4-r6, r8-r11}"                
+            else
+                $asm.puts "pop {r4-r10}"
+            end
+        when "pushCalleeSaves"
+            if isARMv7
+                $asm.puts "push {r4-r6, r8-r11}"
+            else
+                $asm.puts "push {r4-r10}"
+            end

         when "move"
             if operands[0].immediate?
                 armMoveImmediate(operands[0].value, operands[1])
             else
                 $asm.puts "mov #{armFlippedOperands(operands)}"
             end
         when "move"
             if operands[0].immediate?
                 armMoveImmediate(operands[0].value, operands[1])
             else
                 $asm.puts "mov #{armFlippedOperands(operands)}"
             end

+        when "mvlbl"
+                $asm.puts "movw #{operands[1].armOperand}, \#:lower16:#{operands[0].value}"
+                $asm.puts "movt #{operands[1].armOperand}, \#:upper16:#{operands[0].value}"

         when "nop"
             $asm.puts "nop"
         when "bieq", "bpeq", "bbeq"
         when "nop"
             $asm.puts "nop"
         when "bieq", "bpeq", "bbeq"


@@ -579,6 +606,10 @@ class Instruction
         when "smulli"
             raise "Wrong number of arguments to smull in #{self.inspect} at #{codeOriginString}" unless operands.length == 4
             $asm.puts "smull #{operands[2].armOperand}, #{operands[3].armOperand}, #{operands[0].armOperand}, #{operands[1].armOperand}"
         when "smulli"
             raise "Wrong number of arguments to smull in #{self.inspect} at #{codeOriginString}" unless operands.length == 4
             $asm.puts "smull #{operands[2].armOperand}, #{operands[3].armOperand}, #{operands[0].armOperand}, #{operands[1].armOperand}"

+        when "memfence"
+            $asm.puts "dmb sy"
+        when "clrbp"
+            $asm.puts "bic #{operands[2].armOperand}, #{operands[0].armOperand}, #{operands[1].armOperand}"

         else
             lowerDefault
         end
         else
             lowerDefault
         end