Changeset 269929 in webkit for trunk/Source/JavaScriptCore/offlineasm/x86.rb

Timestamp:

Nov 17, 2020, 3:49:01 PM (5 years ago)

Author:

[email protected]

Message:

Add support for the Wasm i32 sign-extension-ops proposal
​https://bugs.webkit.org/show_bug.cgi?id=210302

Patch by Sergey Rubanov <Sergey Rubanov> on 2020-11-17
Reviewed by Yusuke Suzuki.

JSTests:

• wasm/spec-tests/i32.wast.js:
• wasm/spec-tests/i64.wast.js:
• wasm/wasm.json:

Source/JavaScriptCore:

• llint/LowLevelInterpreter.asm:
• llint/WebAssembly.asm:
• offlineasm/arm64.rb:
• offlineasm/cloop.rb:
• offlineasm/instructions.rb:
• offlineasm/x86.rb:
• wasm/WasmAirIRGenerator.cpp:

(JSC::Wasm::AirIRGenerator::addOp<OpType::I32Extend8S>):
(JSC::Wasm::AirIRGenerator::addOp<OpType::I32Extend16S>):

• wasm/wasm.json:

LayoutTests:

• workers/wasm-references/test.js:

File:

• trunk/Source/JavaScriptCore/offlineasm/x86.rb (modified) (1 diff)

trunk/Source/JavaScriptCore/offlineasm/x86.rb

@@ -1413 +1413 @@
         when "zxi2q"
             $asm.puts "mov#{x86Suffix(:int)} #{orderOperands(operands[0].x86Operand(:int), operands[1].x86Operand(:int))}"
+        when "sxb2i"
+            if !isIntelSyntax
+                $asm.puts "movsbl #{operands[0].x86Operand(:byte)}, #{operands[1].x86Operand(:int)}"
+            else
+                $asm.puts "movsx #{orderOperands(operands[0].x86Operand(:byte), operands[1].x86Operand(:int))}"
+            end
+        when "sxh2i"
+            if !isIntelSyntax
+                $asm.puts "movswl #{operands[0].x86Operand(:half)}, #{operands[1].x86Operand(:int)}"
+            else
+                $asm.puts "movsx #{orderOperands(operands[0].x86Operand(:half), operands[1].x86Operand(:int))}"
+            end
         when "nop"
             $asm.puts "nop"