Changeset 155846 in webkit for trunk/Source/JavaScriptCore/offlineasm

Timestamp:

Sep 16, 2013, 2:05:38 AM (12 years ago)

Author:

[email protected]

Message:

[sh4] Handle subp opcode with 3 operands and bpbeq opcode in LLINT.
​https://bugs.webkit.org/show_bug.cgi?id=121412

Patch by Julien Brianceau <​[email protected]> on 2013-09-16
Reviewed by Andreas Kling.

• offlineasm/sh4.rb:

File:

• trunk/Source/JavaScriptCore/offlineasm/sh4.rb (modified) (2 diffs)

trunk/Source/JavaScriptCore/offlineasm/sh4.rb

@@ -571 +571 @@
             end
         when "subi", "subp"
-            raise "#{opcode} with #{operands.size} operands is not handled yet" unless operands.size == 2
-            if operands[0].is_a? Immediate
-                $asm.puts "add #{sh4Operands([Immediate.new(codeOrigin, -1 * operands[0].value), operands[1]])}"
-            else
-                $asm.puts "sub #{sh4Operands(operands)}"
+            if operands.size == 3
+                if operands[1] != operands[2]
+                    $asm.puts "neg #{sh4Operands([operands[2], operands[2]])}"
+                    $asm.puts "add #{sh4Operands([operands[0], operands[2]])}"
+                else
+                    $asm.puts "mov #{sh4Operands([operands[0], operands[2]])}"
+                    $asm.puts "sub #{sh4Operands([operands[1], operands[2]])}"
+                end
+            else
+                if operands[0].is_a? Immediate
+                    $asm.puts "add #{sh4Operands([Immediate.new(codeOrigin, -1 * operands[0].value), operands[1]])}"
+                else
+                    $asm.puts "sub #{sh4Operands(operands)}"
+                end
             end
         when "muli", "mulp"
@@ -682 +691 @@
         when "bia", "bpa", "bba"
             emitSH4CondBranch("hi", false, operands)
+        when "bibeq", "bpbeq"
+            emitSH4CondBranch("hi", true, operands)
         when "biaeq", "bpaeq"
             emitSH4CondBranch("hs", false, operands)