diff --git a/tests/mir-opt/const_debuginfo.rs b/tests/mir-opt/const_debuginfo.rs
index 907d7fef067..3b2bc4559ce 100644
--- a/tests/mir-opt/const_debuginfo.rs
+++ b/tests/mir-opt/const_debuginfo.rs
@@ -1,5 +1,5 @@
 //@ test-mir-pass: SingleUseConsts
-//@ compile-flags: -C overflow-checks=no -Zmir-enable-passes=+GVN
+//@ compile-flags: -C overflow-checks=no -Zmir-enable-passes=+GVN -Zdump-mir-exclude-alloc-bytes
 
 #![allow(unused)]
 
diff --git a/tests/mir-opt/const_prop/address_of_pair.rs b/tests/mir-opt/const_prop/address_of_pair.rs
index 6d0c0f8ad52..9acaaa0ccaf 100644
--- a/tests/mir-opt/const_prop/address_of_pair.rs
+++ b/tests/mir-opt/const_prop/address_of_pair.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR address_of_pair.fn0.GVN.diff
 pub fn fn0() -> bool {
diff --git a/tests/mir-opt/const_prop/checked_add.rs b/tests/mir-opt/const_prop/checked_add.rs
index 0560b049573..d450f7d03f3 100644
--- a/tests/mir-opt/const_prop/checked_add.rs
+++ b/tests/mir-opt/const_prop/checked_add.rs
@@ -1,6 +1,6 @@
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 //@ test-mir-pass: GVN
-//@ compile-flags: -C overflow-checks=on
+//@ compile-flags: -C overflow-checks=on -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR checked_add.main.GVN.diff
 fn main() {
diff --git a/tests/mir-opt/const_prop/mutable_variable_aggregate.rs b/tests/mir-opt/const_prop/mutable_variable_aggregate.rs
index 7de647ed9c3..80cd75215c1 100644
--- a/tests/mir-opt/const_prop/mutable_variable_aggregate.rs
+++ b/tests/mir-opt/const_prop/mutable_variable_aggregate.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR mutable_variable_aggregate.main.GVN.diff
 fn main() {
diff --git a/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs b/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs
index 5656c0e7a68..856afd53ab4 100644
--- a/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs
+++ b/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR mutable_variable_aggregate_mut_ref.main.GVN.diff
 fn main() {
diff --git a/tests/mir-opt/const_prop/mutable_variable_unprop_assign.rs b/tests/mir-opt/const_prop/mutable_variable_unprop_assign.rs
index cc92949128f..2c6cc0db6b2 100644
--- a/tests/mir-opt/const_prop/mutable_variable_unprop_assign.rs
+++ b/tests/mir-opt/const_prop/mutable_variable_unprop_assign.rs
@@ -1,5 +1,6 @@
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR mutable_variable_unprop_assign.main.GVN.diff
 fn main() {
diff --git a/tests/mir-opt/const_prop/return_place.rs b/tests/mir-opt/const_prop/return_place.rs
index e7eea11ae49..c5293aa73e5 100644
--- a/tests/mir-opt/const_prop/return_place.rs
+++ b/tests/mir-opt/const_prop/return_place.rs
@@ -1,6 +1,6 @@
 //@ test-mir-pass: GVN
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
-//@ compile-flags: -C overflow-checks=on
+//@ compile-flags: -C overflow-checks=on -Zdump-mir-exclude-alloc-bytes
 
 // EMIT_MIR return_place.add.GVN.diff
 // EMIT_MIR return_place.add.PreCodegen.before.mir
diff --git a/tests/mir-opt/const_prop/slice_len.rs b/tests/mir-opt/const_prop/slice_len.rs
index 63cdbf01b3e..265a496f39a 100644
--- a/tests/mir-opt/const_prop/slice_len.rs
+++ b/tests/mir-opt/const_prop/slice_len.rs
@@ -1,5 +1,5 @@
 //@ test-mir-pass: GVN
-//@ compile-flags: -Zmir-enable-passes=+InstSimplify
+//@ compile-flags: -Zmir-enable-passes=+InstSimplify -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
diff --git a/tests/mir-opt/const_prop/tuple_literal_propagation.rs b/tests/mir-opt/const_prop/tuple_literal_propagation.rs
index e42a62cb6fd..baed5670dda 100644
--- a/tests/mir-opt/const_prop/tuple_literal_propagation.rs
+++ b/tests/mir-opt/const_prop/tuple_literal_propagation.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 // EMIT_MIR tuple_literal_propagation.main.GVN.diff
 
diff --git a/tests/mir-opt/dataflow-const-prop/checked.rs b/tests/mir-opt/dataflow-const-prop/checked.rs
index a73693464f9..f5a6cdb2c8d 100644
--- a/tests/mir-opt/dataflow-const-prop/checked.rs
+++ b/tests/mir-opt/dataflow-const-prop/checked.rs
@@ -1,5 +1,5 @@
 //@ test-mir-pass: DataflowConstProp
-//@ compile-flags: -Coverflow-checks=on
+//@ compile-flags: -Coverflow-checks=on -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
 // EMIT_MIR checked.main.DataflowConstProp.diff
diff --git a/tests/mir-opt/dataflow-const-prop/default_boxed_slice.rs b/tests/mir-opt/dataflow-const-prop/default_boxed_slice.rs
index 3a0cbac328c..087bd7a1857 100644
--- a/tests/mir-opt/dataflow-const-prop/default_boxed_slice.rs
+++ b/tests/mir-opt/dataflow-const-prop/default_boxed_slice.rs
@@ -1,5 +1,5 @@
 //@ test-mir-pass: DataflowConstProp
-//@ compile-flags: -Zmir-enable-passes=+GVN,+Inline
+//@ compile-flags: -Zmir-enable-passes=+GVN,+Inline -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 
diff --git a/tests/mir-opt/dataflow-const-prop/enum.rs b/tests/mir-opt/dataflow-const-prop/enum.rs
index 946cfa4c76c..37304e3a270 100644
--- a/tests/mir-opt/dataflow-const-prop/enum.rs
+++ b/tests/mir-opt/dataflow-const-prop/enum.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: DataflowConstProp
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 #![feature(custom_mir, core_intrinsics, rustc_attrs)]
diff --git a/tests/mir-opt/dataflow-const-prop/struct.rs b/tests/mir-opt/dataflow-const-prop/struct.rs
index eed782c9036..4b160c3dab7 100644
--- a/tests/mir-opt/dataflow-const-prop/struct.rs
+++ b/tests/mir-opt/dataflow-const-prop/struct.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: DataflowConstProp
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 #[derive(Copy, Clone)]
diff --git a/tests/mir-opt/dataflow-const-prop/tuple.rs b/tests/mir-opt/dataflow-const-prop/tuple.rs
index d624e21f21a..19b675770ab 100644
--- a/tests/mir-opt/dataflow-const-prop/tuple.rs
+++ b/tests/mir-opt/dataflow-const-prop/tuple.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: DataflowConstProp
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
 
 // EMIT_MIR tuple.main.DataflowConstProp.diff
diff --git a/tests/mir-opt/enum_opt.rs b/tests/mir-opt/enum_opt.rs
index 2cc5df84d6b..e42be8ac06d 100644
--- a/tests/mir-opt/enum_opt.rs
+++ b/tests/mir-opt/enum_opt.rs
@@ -1,7 +1,7 @@
 // skip-filecheck
 //@ test-mir-pass: EnumSizeOpt
 // EMIT_MIR_FOR_EACH_BIT_WIDTH
-//@ compile-flags: -Zunsound-mir-opts
+//@ compile-flags: -Zunsound-mir-opts -Zdump-mir-exclude-alloc-bytes
 
 #![feature(arbitrary_enum_discriminant, repr128)]
 
diff --git a/tests/mir-opt/gvn.rs b/tests/mir-opt/gvn.rs
index 86f42d23f38..29f28e7af41 100644
--- a/tests/mir-opt/gvn.rs
+++ b/tests/mir-opt/gvn.rs
@@ -1,4 +1,5 @@
 //@ test-mir-pass: GVN
+//@ compile-flags: -Zdump-mir-exclude-alloc-bytes
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
 //@ only-64bit
 
diff --git a/tests/mir-opt/pre-codegen/optimizes_into_variable.rs b/tests/mir-opt/pre-codegen/optimizes_into_variable.rs
index de5e2d5c312..44b4b0ad888 100644
--- a/tests/mir-opt/pre-codegen/optimizes_into_variable.rs
+++ b/tests/mir-opt/pre-codegen/optimizes_into_variable.rs
@@ -1,6 +1,6 @@
 // skip-filecheck
 // EMIT_MIR_FOR_EACH_PANIC_STRATEGY
-//@ compile-flags: -C overflow-checks=on
+//@ compile-flags: -C overflow-checks=on -Zdump-mir-exclude-alloc-bytes
 
 struct Point {
     x: u32,