Changeset 229186 in webkit

Timestamp:

Mar 2, 2018 12:19:17 PM (6 years ago)

Author:

mark.lam@apple.com

Message:

Make the LLInt probe work for ARM64.
​https://bugs.webkit.org/show_bug.cgi?id=183298
<rdar://problem/38077413>

Reviewed by Filip Pizlo.

• llint/LowLevelInterpreter.asm:

Location:

trunk/Source/JavaScriptCore

Files:

• ChangeLog (modified) (1 diff)
• llint/LowLevelInterpreter.asm (modified) (3 diffs)

trunk/Source/JavaScriptCore/ChangeLog

@@ +1 @@
+2018-03-02  Mark Lam  <mark.lam@apple.com>
+
+        Make the LLInt probe work for ARM64.
+        https://bugs.webkit.org/show_bug.cgi?id=183298
+        <rdar://problem/38077413>
+
+        Reviewed by Filip Pizlo.
+
+        * llint/LowLevelInterpreter.asm:
+
 2018-03-02  Yusuke Suzuki  <utatane.tea@gmail.com>
 

trunk/Source/JavaScriptCore/llint/LowLevelInterpreter.asm

@@ -493 +493 @@
 #     )
 #
-if X86_64
+if X86_64 or ARM64
     macro probe(action)
         # save all the registers that the LLInt may use.
+        if ARM64
+            push cfr, lr
+        end
         push a0, a1
         push a2, a3
@@ -501 +504 @@
         push t2, t3
         push t4, t5
+        if ARM64
+            push csr0, csr1
+            push csr2, csr3
+            push csr4, csr5
+            push csr6, csr7
+            push csr8, csr9
+        end
 
         action()
 
         # restore all the registers we saved previously.
+        if ARM64
+            pop csr9, csr8
+            pop csr7, csr6
+            pop csr5, csr4
+            pop csr3, csr2
+            pop csr1, csr0
+        end
         pop t5, t4
         pop t3, t2
@@ -510 +527 @@
         pop a3, a2
         pop a1, a0
+        if ARM64
+            pop lr, cfr
+        end
+    end
+else
+    macro probe(action)
     end
 end