diff options
Diffstat (limited to 'Source/JavaScriptCore/offlineasm/x86.rb')
| -rw-r--r-- | Source/JavaScriptCore/offlineasm/x86.rb | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Source/JavaScriptCore/offlineasm/x86.rb b/Source/JavaScriptCore/offlineasm/x86.rb index e6a5c92ca..383526b25 100644 --- a/Source/JavaScriptCore/offlineasm/x86.rb +++ b/Source/JavaScriptCore/offlineasm/x86.rb @@ -555,7 +555,11 @@ class Instruction end def handleX86Add(kind) - if operands.size == 3 and operands[0].is_a? Immediate + if operands.size == 3 and operands[1] == operands[2] + unless Immediate.new(nil, 0) == operands[0] + $asm.puts "add#{x86Suffix(kind)} #{operands[0].x86Operand(kind)}, #{operands[2].x86Operand(kind)}" + end + elsif operands.size == 3 and operands[0].is_a? Immediate raise unless operands[1].is_a? RegisterID raise unless operands[2].is_a? RegisterID if operands[0].value == 0 @@ -568,7 +572,11 @@ class Instruction elsif operands.size == 3 and operands[0].is_a? RegisterID raise unless operands[1].is_a? RegisterID raise unless operands[2].is_a? RegisterID - $asm.puts "lea#{x86Suffix(kind)} (#{operands[0].x86Operand(kind)}, #{operands[1].x86Operand(kind)}), #{operands[2].x86Operand(kind)}" + if operands[0] == operands[2] + $asm.puts "add#{x86Suffix(kind)} #{operands[1].x86Operand(kind)}, #{operands[2].x86Operand(kind)}" + else + $asm.puts "lea#{x86Suffix(kind)} (#{operands[0].x86Operand(kind)}, #{operands[1].x86Operand(kind)}), #{operands[2].x86Operand(kind)}" + end else unless Immediate.new(nil, 0) == operands[0] $asm.puts "add#{x86Suffix(kind)} #{x86Operands(kind, kind)}" |