Emit DeferredDeclsToEmit in a DFS order.

Currently we emit DeferredDeclsToEmit in reverse order. This patch changes that.

The advantages of the change are that

* The output order is a bit closer to the source order. The change to
test/CodeGenCXX/pod-member-memcpys.cpp is a good example.

* If we decide to deffer more, it will not cause as large changes in the
estcases as it would without this patch.

llvm-svn: 226751

1 files changed, 16 insertions, 17 deletions

diff --git a/clang/test/CodeGenCXX/debug-lambda-expressions.cpp b/clang/test/CodeGenCXX/debug-lambda-expressions.cpp
index feafcff064c..ac84036f138 100644
--- a/clang/test/CodeGenCXX/debug-lambda-expressions.cpp
+++ b/clang/test/CodeGenCXX/debug-lambda-expressions.cpp
@@ -29,13 +29,17 @@ int d(int x) { D y[10]; return [x,y] { return y[x].x; }(); }
 // D: 18
 // CHECK: [[D_FUNC:.*]] = {{.*}} [ DW_TAG_subprogram ] [line [[D_LINE:.*]]] [def] [d]
 
-// Back to D. -- 24
-// CHECK: [[LAM_D:.*]] = {{.*}}, [[D_FUNC]], {{.*}}, [[LAM_D_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[D_LINE]],
-// CHECK: [[LAM_D_ARGS]] = !{[[CAP_D_X:.*]], [[CAP_D_Y:.*]], [[CON_LAM_D:.*]]}
-// CHECK: [[CAP_D_X]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_member ] [x] [line [[D_LINE]],
-// CHECK: [[CAP_D_Y]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_member ] [y] [line [[D_LINE]],
-// CHECK: [[CON_LAM_D]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_subprogram ] [line [[D_LINE]]] [public] [operator()]
 
+// Back to A. -- 78
+// CHECK: [[LAM_A:.*]] = {{.*}}, [[A_FUNC]], {{.*}}, [[LAM_A_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[A_LINE]],
+// CHECK: [[LAM_A_ARGS]] = !{[[CON_LAM_A:.*]]}
+// CHECK: [[CON_LAM_A]] = {{.*}}, [[LAM_A]], {{.*}} [ DW_TAG_subprogram ] [line [[A_LINE]]] [public] [operator()]
+
+// Back to B. -- 67
+// CHECK: [[LAM_B:.*]] = {{.*}}, [[B_FUNC]], {{.*}}, [[LAM_B_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[B_LINE]],
+// CHECK: [[LAM_B_ARGS]] = !{[[CAP_B:.*]], [[CON_LAM_B:.*]]}
+// CHECK: [[CAP_B]] = {{.*}}, [[LAM_B]], {{.*}}} ; [ DW_TAG_member ] [x] [line [[B_LINE]],
+// CHECK: [[CON_LAM_B]] = {{.*}}, [[LAM_B]], {{.*}} [ DW_TAG_subprogram ] [line [[B_LINE]]] [public] [operator()]
 
 // Back to C. -- 55
 // CHECK: [[LAM_C:.*]] = {{.*}}, [[C_FUNC]], {{.*}}, [[LAM_C_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[C_LINE]],
@@ -44,17 +48,12 @@ int d(int x) { D y[10]; return [x,y] { return y[x].x; }(); }
 // CHECK: [[CAP_C]] = {{.*}}, [[LAM_C]], {{.*}}} ; [ DW_TAG_member ] [x] [line [[C_LINE]],
 // CHECK: [[CON_LAM_C]] = {{.*}}, [[LAM_C]], {{.*}} [ DW_TAG_subprogram ] [line [[C_LINE]]] [public] [operator()]
 
-
-// Back to B. -- 67
-// CHECK: [[LAM_B:.*]] = {{.*}}, [[B_FUNC]], {{.*}}, [[LAM_B_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[B_LINE]],
-// CHECK: [[LAM_B_ARGS]] = !{[[CAP_B:.*]], [[CON_LAM_B:.*]]}
-// CHECK: [[CAP_B]] = {{.*}}, [[LAM_B]], {{.*}}} ; [ DW_TAG_member ] [x] [line [[B_LINE]],
-// CHECK: [[CON_LAM_B]] = {{.*}}, [[LAM_B]], {{.*}} [ DW_TAG_subprogram ] [line [[B_LINE]]] [public] [operator()]
-
-// Back to A. -- 78
-// CHECK: [[LAM_A:.*]] = {{.*}}, [[A_FUNC]], {{.*}}, [[LAM_A_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[A_LINE]],
-// CHECK: [[LAM_A_ARGS]] = !{[[CON_LAM_A:.*]]}
-// CHECK: [[CON_LAM_A]] = {{.*}}, [[LAM_A]], {{.*}} [ DW_TAG_subprogram ] [line [[A_LINE]]] [public] [operator()]
+// Back to D. -- 24
+// CHECK: [[LAM_D:.*]] = {{.*}}, [[D_FUNC]], {{.*}}, [[LAM_D_ARGS:.*]], null, null, null} ; [ DW_TAG_class_type ] [line [[D_LINE]],
+// CHECK: [[LAM_D_ARGS]] = !{[[CAP_D_X:.*]], [[CAP_D_Y:.*]], [[CON_LAM_D:.*]]}
+// CHECK: [[CAP_D_X]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_member ] [x] [line [[D_LINE]],
+// CHECK: [[CAP_D_Y]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_member ] [y] [line [[D_LINE]],
+// CHECK: [[CON_LAM_D]] = {{.*}}, [[LAM_D]], {{.*}} [ DW_TAG_subprogram ] [line [[D_LINE]]] [public] [operator()]
 
 // CVAR:
 // CHECK: {{.*}} [[CVAR_T:![0-9]*]], {{.*}} ; [ DW_TAG_variable ] [cvar] [line [[CVAR_LINE:[0-9]*]]]