Add Debug impls to API types in rustc_codegen_ssa

compiler/rustc_codegen_ssa/src/common.rs

@@ -8,7 +8,7 @@
 
 use crate::traits::*;
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum IntPredicate {
     IntEQ,
     IntNE,
@@ -22,7 +22,7 @@ pub enum IntPredicate {
     IntSLE,
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum RealPredicate {
     RealPredicateFalse,
     RealOEQ,
@@ -42,7 +42,7 @@ pub enum RealPredicate {
     RealPredicateTrue,
 }
 
-#[derive(Copy, Clone, PartialEq)]
+#[derive(Copy, Clone, PartialEq, Debug)]
 pub enum AtomicRmwBinOp {
     AtomicXchg,
     AtomicAdd,
@@ -57,7 +57,7 @@ pub enum AtomicRmwBinOp {
     AtomicUMin,
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum AtomicOrdering {
     Unordered,
     Relaxed,
@@ -67,7 +67,7 @@ pub enum AtomicOrdering {
     SequentiallyConsistent,
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum SynchronizationScope {
     SingleThread,
     CrossThread,

compiler/rustc_codegen_ssa/src/mir/operand.rs

@@ -131,7 +131,7 @@ pub(crate) fn is_expected_variant_for_type<'tcx, Cx: LayoutTypeMethods<'tcx>>(
 /// to avoid nasty edge cases. In particular, using `Builder::store`
 /// directly is sure to cause problems -- use `OperandRef::store`
 /// instead.
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub struct OperandRef<'tcx, V> {
     /// The value.
     pub val: OperandValue<V>,

compiler/rustc_codegen_ssa/src/traits/builder.rs

@@ -23,7 +23,7 @@
 use crate::mir::place::{PlaceRef, PlaceValue};
 use crate::MemFlags;
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum OverflowOp {
     Add,
     Sub,