Changeset 56759 in webkit for trunk/JavaScriptCore/assembler/MIPSAssembler.h

Timestamp:

Mar 29, 2010, 7:59:20 PM (15 years ago)

Author:

[email protected]

Message:

2010-03-29 Chao-ying Fu <​[email protected]>

Reviewed by Oliver Hunt.

MIPS JIT Supports
​https://bugs.webkit.org/show_bug.cgi?id=30144

The following changes enable MIPS JIT.

• assembler/MIPSAssembler.h: (JSC::MIPSAssembler::lbu): (JSC::MIPSAssembler::linkWithOffset):
• assembler/MacroAssemblerMIPS.h: (JSC::MacroAssemblerMIPS::load8): (JSC::MacroAssemblerMIPS::branch8): (JSC::MacroAssemblerMIPS::branchTest8): (JSC::MacroAssemblerMIPS::setTest8): (JSC::MacroAssemblerMIPS::setTest32):
• jit/JIT.h:
• jit/JITInlineMethods.h: (JSC::JIT::preserveReturnAddressAfterCall): (JSC::JIT::restoreReturnAddressBeforeReturn):
• jit/JITOpcodes.cpp:
• jit/JITStubs.cpp: (JSC::JITThunks::JITThunks):
• jit/JITStubs.h: (JSC::JITStackFrame::returnAddressSlot):
• wtf/Platform.h:

File:

• trunk/JavaScriptCore/assembler/MIPSAssembler.h (modified) (3 diffs)

trunk/JavaScriptCore/assembler/MIPSAssembler.h

@@ -393 +393 @@
     }
 
+    void lbu(RegisterID rt, RegisterID rs, int offset)
+    {
+        emitInst(0x90000000 | (rt << OP_SH_RT) | (rs << OP_SH_RS)
+                 | (offset & 0xffff));
+        loadDelayNop();
+    }
+
     void lw(RegisterID rt, RegisterID rs, int offset)
     {
@@ -858 +865 @@
                 1:
 
-                Note: beq/bne/bc1t are converted to bne/beq/bc1f.
+                Note: beq/bne/bc1t/bc1f are converted to bne/beq/bc1f/bc1t.
             */
 
@@ -868 +875 @@
                 else if ((*insn & 0xffff0000) == 0x45010000) // bc1t
                     *insn = 0x45000005; // bc1f
+                else if ((*insn & 0xffff0000) == 0x45000000) // bc1f
+                    *insn = 0x45010005; // bc1t
                 else
                     ASSERT(0);