OpcodeDispatcher: Handle VCVTSS2SI

External/FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp

@@ -5830,6 +5830,8 @@ void OpDispatchBuilder::InstallHostSpecificOpcodeHandlers() {
     {OPD(1, 0b00, 0x2B), 1, &OpDispatchBuilder::VMOVVectorNTOp},
     {OPD(1, 0b01, 0x2B), 1, &OpDispatchBuilder::VMOVVectorNTOp},
 
+    {OPD(1, 0b10, 0x2D), 1, &OpDispatchBuilder::CVTFPR_To_GPR<4, true>},
+
     {OPD(1, 0b00, 0x2E), 1, &OpDispatchBuilder::UCOMISxOp<4>},
     {OPD(1, 0b01, 0x2E), 1, &OpDispatchBuilder::UCOMISxOp<8>},
     {OPD(1, 0b00, 0x2F), 1, &OpDispatchBuilder::UCOMISxOp<4>},

External/FEXCore/Source/Interface/Core/X86Tables/VEXTables.cpp

@@ -127,7 +127,7 @@ void InitializeVEXTables() {
     {OPD(1, 0b10, 0x2C), 1, X86InstInfo{"VCVTTSS2SI",   TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
     {OPD(1, 0b11, 0x2C), 1, X86InstInfo{"VCVTTSD2SI",   TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
 
-    {OPD(1, 0b10, 0x2D), 1, X86InstInfo{"VCVTSS2SI",   TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
+    {OPD(1, 0b10, 0x2D), 1, X86InstInfo{"VCVTSS2SI",   TYPE_INST, FLAGS_MODRM | FLAGS_XMM_FLAGS | FLAGS_SF_DST_GPR, 0, nullptr}},
     {OPD(1, 0b11, 0x2D), 1, X86InstInfo{"VCVTSD2SI",   TYPE_UNDEC, FLAGS_NONE, 0, nullptr}},
 
     {OPD(1, 0b00, 0x2E), 1, X86InstInfo{"VUCOMISS",   TYPE_INST, GenFlagsSizes(SIZE_128BIT, SIZE_32BIT) | FLAGS_MODRM | FLAGS_XMM_FLAGS, 0, nullptr}},

unittests/ASM/VEX/vcvtss2si.asm

@@ -0,0 +1,46 @@
+%ifdef CONFIG
+{
+  "HostFeatures": ["AVX"],
+  "RegData": {
+    "RAX": "0x0000000000000001",
+    "RBX": "0xFFFFFFFFFFFFFFFF",
+    "RCX": "0x00000000FFFFFFFE",
+    "RDX": "0xFFFFFFFFFFFFFFFC"
+  },
+  "MemoryRegions": {
+    "0x100000000": "4096"
+  }
+}
+%endif
+
+lea r15, [rel .data]
+
+vmovapd xmm0, [r15 + 8 * 0]
+vmovapd xmm1, [r15 + 8 * 2]
+
+mov rax, -1
+mov rbx, -1
+mov rcx, -1
+mov rdx, -1
+
+vcvtss2si eax, xmm0
+vcvtss2si rbx, xmm1
+
+vcvtss2si ecx, [r15 + 8 * 4]
+vcvtss2si rdx, [r15 + 8 * 6]
+
+hlt
+
+align 32
+.data:
+dq 0x414243443F800000
+dq 0x5152535455565758
+
+dq 0x41424344BF800000
+dq 0x5152535455565758
+
+dq 0x41424344C0000000
+dq 0x5152535455565758
+
+dq 0x41424344C0800000
+dq 0x5152535455565758