diff --git a/src/amd/compiler/aco_ir.cpp b/src/amd/compiler/aco_ir.cpp
index 42b334acbb9..4cd79a8d746 100644
--- a/src/amd/compiler/aco_ir.cpp
+++ b/src/amd/compiler/aco_ir.cpp
@@ -828,6 +828,12 @@ get_operand_size(aco_ptr<Instruction>& instr, unsigned index)
             instr->opcode == aco_opcode::v_fma_mixlo_f16 ||
             instr->opcode == aco_opcode::v_fma_mixhi_f16)
       return instr->valu().opsel_hi[index] ? 16 : 32;
+   else if (instr->opcode == aco_opcode::v_interp_p10_f16_f32_inreg ||
+            instr->opcode == aco_opcode::v_interp_p10_rtz_f16_f32_inreg)
+      return index == 1 ? 32 : 16;
+   else if (instr->opcode == aco_opcode::v_interp_p2_f16_f32_inreg ||
+            instr->opcode == aco_opcode::v_interp_p2_rtz_f16_f32_inreg)
+      return index == 0 ? 16 : 32;
    else if (instr->isVALU() || instr->isSALU())
       return instr_info.operand_size[(int)instr->opcode];
    else
diff --git a/src/amd/compiler/aco_opcodes.py b/src/amd/compiler/aco_opcodes.py
index 7a9cf4ddfbb..c01b28c7773 100644
--- a/src/amd/compiler/aco_opcodes.py
+++ b/src/amd/compiler/aco_opcodes.py
@@ -261,7 +261,9 @@ class Instruction(object):
         self.operand_size = 0
       elif 'sad_' in name:
         self.operand_size = 32
-      elif name in ['v_mad_u64_u32', 'v_mad_i64_i32']:
+      elif name in ['v_mad_u64_u32', 'v_mad_i64_i32',
+                    'v_interp_p10_f16_f32_inreg', 'v_interp_p10_rtz_f16_f32_inreg',
+                    'v_interp_p2_f16_f32_inreg', 'v_interp_p2_rtz_f16_f32_inreg']:
         self.operand_size = 0
       elif self.operand_size == 24:
         self.operand_size = 32
@@ -1244,7 +1246,7 @@ VINTERP = {
    ("v_interp_p2_rtz_f16_f32_inreg",  op(gfx11=0x05)),
 }
 for (name, num) in VINTERP:
-   insn(name, num, Format.VINTERP_INREG, InstrClass.Valu32, False, True, definitions = dst(1), operands = src(1, 1, 1))
+   insn(name, num, Format.VINTERP_INREG, InstrClass.Valu32, True, True, definitions = dst(1), operands = src(1, 1, 1))
 
 
 # VOP3 instructions: 3 inputs, 1 output
diff --git a/src/amd/compiler/aco_optimizer.cpp b/src/amd/compiler/aco_optimizer.cpp
index 0b8d0077212..35366fd5d4a 100644
--- a/src/amd/compiler/aco_optimizer.cpp
+++ b/src/amd/compiler/aco_optimizer.cpp
@@ -469,7 +469,7 @@ can_use_VOP3(opt_ctx& ctx, const aco_ptr<Instruction>& instr)
    if (instr->isVOP3())
       return true;
 
-   if (instr->isVOP3P())
+   if (instr->isVOP3P() || instr->isVINTERP_INREG())
       return false;
 
    if (instr->operands.size() && instr->operands[0].isLiteral() && ctx.program->gfx_level < GFX10)
@@ -1361,6 +1361,8 @@ label_instruction(opt_ctx& ctx, aco_ptr<Instruction>& instr)
             can_use_mod &= instr->sdwa().sel[i].size() == 4;
          else if (instr->isVOP3P())
             can_use_mod &= !packed_math || !info.is_abs();
+         else if (instr->isVINTERP_INREG())
+            can_use_mod &= !info.is_abs();
          else
             can_use_mod &= instr->isDPP16() || can_use_VOP3(ctx, instr);