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authorTyler Mandry <tmandry@gmail.com>2020-06-24 14:17:31 -0700
committerTyler Mandry <tmandry@gmail.com>2020-06-24 15:08:59 -0700
commit887fbd9d3411ea7def2cc7a508d74bea6b7f19bb (patch)
tree5d4402988879e15dbf62390668ccd1f59abfaef0 /src/test/codegen/async-fn-debug.rs
parentfe3df646fe415123d0a6bd09df698dc69074263a (diff)
downloadrust-887fbd9d3411ea7def2cc7a508d74bea6b7f19bb.tar.gz
rust-887fbd9d3411ea7def2cc7a508d74bea6b7f19bb.zip
Split out async fn and generator test
This keeps FileCheck from tripping over unimportant differences in
codegen.
Diffstat (limited to 'src/test/codegen/async-fn-debug.rs')
-rw-r--r--src/test/codegen/async-fn-debug.rs51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/test/codegen/async-fn-debug.rs b/src/test/codegen/async-fn-debug.rs
new file mode 100644
index 00000000000..8fa4be1ae86
--- /dev/null
+++ b/src/test/codegen/async-fn-debug.rs
@@ -0,0 +1,51 @@
+// Verify debuginfo for async fn:
+//  - Each variant points to the file and line of its yield point
+//  - The generator types and variants are marked artificial
+//  - Captured vars from the source are not marked artificial
+//
+// ignore-tidy-linelength
+// compile-flags: -C debuginfo=2 --edition=2018
+// ignore-msvc
+
+async fn foo() {}
+async fn async_fn_test() {
+    foo().await;
+    let s = String::from("foo");
+    foo().await;
+}
+
+// FIXME: No way to reliably check the filename.
+
+// CHECK-DAG:  [[ASYNC_FN:!.*]] = !DINamespace(name: "async_fn_test"
+// CHECK-DAG:  [[GEN:!.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "generator-0", scope: [[ASYNC_FN]], {{.*}}flags: DIFlagArtificial
+// CHECK:      [[VARIANT:!.*]] = !DICompositeType(tag: DW_TAG_variant_part, scope: [[ASYNC_FN]],
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK-SAME: discriminator: [[DISC:![0-9]*]]
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "0", scope: [[VARIANT]],
+// CHECK-SAME: file: [[FILE:![0-9]*]], line: 11,
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DICompositeType(tag: DW_TAG_structure_type, name: "Unresumed", scope: [[GEN]],
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "1", scope: [[VARIANT]],
+// CHECK-SAME: file: [[FILE]], line: 15,
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "2", scope: [[VARIANT]],
+// CHECK-SAME: file: [[FILE]], line: 15,
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "3", scope: [[VARIANT]],
+// CHECK-SAME: file: [[FILE]], line: 12,
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "4", scope: [[VARIANT]],
+// CHECK-SAME: file: [[FILE]], line: 14,
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      [[S1:!.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Suspend1", scope: [[GEN]],
+// CHECK-SAME: flags: DIFlagArtificial
+// CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: [[S1]]
+// CHECK-NOT:  flags: DIFlagArtificial
+// CHECK-SAME: )
+// CHECK:      [[DISC]] = !DIDerivedType(tag: DW_TAG_member, name: "__state", scope: [[ASYNC_FN]],
+// CHECK-SAME: flags: DIFlagArtificial
+
+fn main() {
+    let _dummy = async_fn_test();
+}