DebugInfo: pass alignment value only if it was forced

Preparation to implement DW_AT_alignment support:
 - We pass non-zero align value to DIBuilder only when alignment was forced
 - Modify tests to match this change

Differential Revision: https://reviews.llvm.org/D24426

llvm-svn: 284679
diff --git a/clang/test/CodeGen/debug-info-packed-struct.c b/clang/test/CodeGen/debug-info-packed-struct.c
index 46f96aa..6441a74 100644
--- a/clang/test/CodeGen/debug-info-packed-struct.c
+++ b/clang/test/CodeGen/debug-info-packed-struct.c
@@ -19,9 +19,9 @@
 };
 // CHECK: l0_ofs0
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs8",
-// CHECK-SAME:     {{.*}}size: 64, align: 64, offset: 64)
+// CHECK-SAME:     {{.*}}size: 64, offset: 64)
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l0_ofs16",
-// CHECK-SAME:     {{.*}}size: 1, align: 32, offset: 128, flags: DIFlagBitField, extraData: i64 128)
+// CHECK-SAME:     {{.*}}size: 1, offset: 128, flags: DIFlagBitField, extraData: i64 128)
 
 
 // ---------------------------------------------------------------------
@@ -38,9 +38,9 @@
 };
 // CHECK: l1_ofs0
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs1",
-// CHECK-SAME:     {{.*}}size: 64, align: 8, offset: 8)
+// CHECK-SAME:     {{.*}}size: 64, offset: 8)
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l1_ofs9",
-// CHECK-SAME:     {{.*}}size: 1, align: 32, offset: 72, flags: DIFlagBitField, extraData: i64 72)
+// CHECK-SAME:     {{.*}}size: 1, offset: 72, flags: DIFlagBitField, extraData: i64 72)
 
 
 // ---------------------------------------------------------------------
@@ -59,9 +59,9 @@
 #pragma pack()
 // CHECK: l2_ofs0
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs1",
-// CHECK-SAME:     {{.*}}size: 64, align: 8, offset: 8)
+// CHECK-SAME:     {{.*}}size: 64, offset: 8)
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l2_ofs9",
-// CHECK-SAME:     {{.*}}size: 1, align: 32, offset: 72, flags: DIFlagBitField, extraData: i64 72)
+// CHECK-SAME:     {{.*}}size: 1, offset: 72, flags: DIFlagBitField, extraData: i64 72)
 
 
 
@@ -81,9 +81,9 @@
 #pragma pack()
 // CHECK: l3_ofs0
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs4",
-// CHECK-SAME:     {{.*}}size: 64, align: 32, offset: 32)
+// CHECK-SAME:     {{.*}}size: 64, offset: 32)
 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "l3_ofs12",
-// CHECK-SAME:     {{.*}}size: 1, align: 32, offset: 96, flags: DIFlagBitField, extraData: i64 96)
+// CHECK-SAME:     {{.*}}size: 1, offset: 96, flags: DIFlagBitField, extraData: i64 96)
 
 struct layout3 l3;
 struct layout0 l0;