diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 587e3aaf46c..29908085126 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -1574,31 +1574,31 @@ typedef struct nir_alu_instr {
 } nir_alu_instr;
 
 static inline bool
-nir_alu_instr_is_signed_zero_preserve(nir_alu_instr *alu)
+nir_alu_instr_is_signed_zero_preserve(const nir_alu_instr *alu)
 {
    return alu->fp_math_ctrl & nir_fp_preserve_signed_zero;
 }
 
 static inline bool
-nir_alu_instr_is_inf_preserve(nir_alu_instr *alu)
+nir_alu_instr_is_inf_preserve(const nir_alu_instr *alu)
 {
    return alu->fp_math_ctrl & nir_fp_preserve_inf;
 }
 
 static inline bool
-nir_alu_instr_is_nan_preserve(nir_alu_instr *alu)
+nir_alu_instr_is_nan_preserve(const nir_alu_instr *alu)
 {
    return alu->fp_math_ctrl & nir_fp_preserve_nan;
 }
 
 static inline bool
-nir_alu_instr_is_signed_zero_inf_nan_preserve(nir_alu_instr *alu)
+nir_alu_instr_is_signed_zero_inf_nan_preserve(const nir_alu_instr *alu)
 {
    return alu->fp_math_ctrl & nir_fp_preserve_sz_inf_nan;
 }
 
 static inline bool
-nir_alu_instr_is_exact(nir_alu_instr *alu)
+nir_alu_instr_is_exact(const nir_alu_instr *alu)
 {
    return alu->fp_math_ctrl & nir_fp_exact;
 }