Changeset 148705 in webkit

Timestamp:

Apr 18, 2013 2:56:32 PM (11 years ago)

Author:

rgabor@webkit.org

Message:

LLInt ARM backend should not use the d8 register as scratch register
​https://bugs.webkit.org/show_bug.cgi?id=114811

Reviewed by Filip Pizlo.

The d8 register must preserved across function calls and should
not used as scratch register. Changing it to d6.

• offlineasm/arm.rb:

Location:

trunk/Source/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• offlineasm/arm.rb (modified) (1 diff)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2013-04-18  Gabor Rapcsanyi  <rgabor@webkit.org>
+
+        LLInt ARM backend should not use the d8 register as scratch register
+        https://bugs.webkit.org/show_bug.cgi?id=114811
+
+        Reviewed by Filip Pizlo.
+
+        The d8 register must preserved across function calls and should
+        not used as scratch register. Changing it to d6.
+
+        * offlineasm/arm.rb:
+
 2013-04-18  Geoffrey Garen  <ggaren@apple.com>
 

trunk/Source/JavaScriptCore/offlineasm/arm.rb

@@ -66 +66 @@
 ARM_EXTRA_GPRS = [SpecialRegister.new("r9"), SpecialRegister.new("r8"), SpecialRegister.new("r3")]
 ARM_EXTRA_FPRS = [SpecialRegister.new("d7")]
-ARM_SCRATCH_FPR = SpecialRegister.new("d8")
+ARM_SCRATCH_FPR = SpecialRegister.new("d6")
 
 def armMoveImmediate(value, register)