[AMDGPU][MC] Disable sendmsg SYSMSG_OP_HOST_TRAP_ACK on gfx9+

This is no longer supported as of gfx9. Fixes #52903

Author: epilk

llvm/lib/Target/AMDGPU/Utils/AMDGPUAsmUtils.cpp

@@ -123,7 +123,7 @@ static constexpr CustomOperand SysMsgOperands[] = {
   {{""}},
   {{"SYSMSG_OP_ECC_ERR_INTERRUPT"},  OP_SYS_ECC_ERR_INTERRUPT},
   {{"SYSMSG_OP_REG_RD"},             OP_SYS_REG_RD},
-  {{"SYSMSG_OP_HOST_TRAP_ACK"},      OP_SYS_HOST_TRAP_ACK},
+  {{"SYSMSG_OP_HOST_TRAP_ACK"},      OP_SYS_HOST_TRAP_ACK,      isNotGFX9Plus},
   {{"SYSMSG_OP_TTRACE_PC"},          OP_SYS_TTRACE_PC},
 };
 

llvm/test/MC/AMDGPU/gfx9-asm-err.s

@@ -41,3 +41,6 @@ global_load_dword v[2:3], off
 
 scratch_load_dword v2, off, offset:256
 // GFX9ERR: :[[@LINE-1]]:{{[0-9]+}}: error: too few operands for instruction
+
+s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK)
+// GFX9ERR: :[[@LINE-1]]:{{[0-9]+}}: error: specified operation id is not supported on this GPU

llvm/test/MC/AMDGPU/sopp-err.s

@@ -199,6 +199,10 @@ s_sendmsg sendmsg(MSG_SYSMSG, 0)
 s_sendmsg sendmsg(MSG_SYSMSG, 5)
 // GCN: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operation id
 
+s_sendmsg sendmsg(MSG_SYSMSG, SYSMSG_OP_HOST_TRAP_ACK)
+// GFX10: :[[@LINE-1]]:{{[0-9]+}}: error: specified operation id is not supported on this GPU
+// GFX11PLUS: :[[@LINE-2]]:{{[0-9]+}}: error: specified operation id is not supported on this GPU
+
 //===----------------------------------------------------------------------===//
 // waitcnt
 //===----------------------------------------------------------------------===//

llvm/test/MC/AMDGPU/sopp-gfx9.s

@@ -109,3 +109,6 @@ s_sendmsg 10
 
 s_sendmsg sendmsg(MSG_GET_DOORBELL)
 // GFX9: s_sendmsg sendmsg(MSG_GET_DOORBELL) ; encoding: [0x0a,0x00,0x90,0xbf]
+
+s_sendmsg sendmsg(15, 3, 0)
+// GFX9: s_sendmsg sendmsg(15, 3, 0) ; encoding: [0x3f,0x00,0x90,0xbf]