Changeset 46832 in webkit for trunk/JavaScriptCore/assembler/ARMAssembler.cpp

Timestamp:

Aug 5, 2009, 10:33:27 PM (16 years ago)

Author:

[email protected]

Message:

2009-08-05 Zoltan Herczeg <​[email protected]>

Reviewed by Gavin Barraclough.

Add floating point support for generic ARM port.
​https://bugs.webkit.org/show_bug.cgi?id=24986

• assembler/ARMAssembler.cpp: (JSC::ARMAssembler::doubleTransfer):
• assembler/ARMAssembler.h: (JSC::ARM::): (JSC::ARMAssembler::): (JSC::ARMAssembler::faddd_r): (JSC::ARMAssembler::fsubd_r): (JSC::ARMAssembler::fmuld_r): (JSC::ARMAssembler::fcmpd_r): (JSC::ARMAssembler::fdtr_u): (JSC::ARMAssembler::fdtr_d): (JSC::ARMAssembler::fmsr_r): (JSC::ARMAssembler::fsitod_r): (JSC::ARMAssembler::fmstat):
• assembler/MacroAssemblerARM.h: (JSC::MacroAssemblerARM::): (JSC::MacroAssemblerARM::supportsFloatingPoint): (JSC::MacroAssemblerARM::loadDouble): (JSC::MacroAssemblerARM::storeDouble): (JSC::MacroAssemblerARM::addDouble): (JSC::MacroAssemblerARM::subDouble): (JSC::MacroAssemblerARM::mulDouble): (JSC::MacroAssemblerARM::convertInt32ToDouble): (JSC::MacroAssemblerARM::branchDouble):
• jit/JIT.h:

File:

• trunk/JavaScriptCore/assembler/ARMAssembler.cpp (modified) (1 diff)

trunk/JavaScriptCore/assembler/ARMAssembler.cpp

@@ -335 +335 @@
 }
 
+void ARMAssembler::doubleTransfer(bool isLoad, FPRegisterID srcDst, RegisterID base, int32_t offset)
+{
+    if (offset & 0x3) {
+        if (offset <= 0x3ff && offset >= 0) {
+            fdtr_u(isLoad, srcDst, base, offset >> 2);
+            return;
+        }
+        if (offset <= 0x3ffff && offset >= 0) {
+            add_r(ARM::S0, base, OP2_IMM | (offset >> 10) | (11 << 8));
+            fdtr_u(isLoad, srcDst, ARM::S0, (offset >> 2) & 0xff);
+            return;
+        }
+        offset = -offset;
+
+        if (offset <= 0x3ff && offset >= 0) {
+            fdtr_d(isLoad, srcDst, base, offset >> 2);
+            return;
+        }
+        if (offset <= 0x3ffff && offset >= 0) {
+            sub_r(ARM::S0, base, OP2_IMM | (offset >> 10) | (11 << 8));
+            fdtr_d(isLoad, srcDst, ARM::S0, (offset >> 2) & 0xff);
+            return;
+        }
+        offset = -offset;
+    }
+
+    ldr_un_imm(ARM::S0, offset);
+    add_r(ARM::S0, ARM::S0, base);
+    fdtr_u(isLoad, srcDst, ARM::S0, 0);
+}
+
 void* ARMAssembler::executableCopy(ExecutablePool* allocator)
 {