1 files changed, 146 insertions, 11 deletions
diff --git a/clang/test/CodeGen/exceptions-seh.c b/clang/test/CodeGen/exceptions-seh.c
index 0a82e379b2c..ebf1cfbb2be 100644
--- a/clang/test/CodeGen/exceptions-seh.c
+++ b/clang/test/CodeGen/exceptions-seh.c
@@ -1,19 +1,154 @@
-// RUN: not %clang_cc1 -triple i686-pc-win32 -fexceptions -fms-extensions -emit-llvm -o - %s 2>&1 | FileCheck %s
+// RUN: %clang_cc1 %s -triple x86_64-pc-win32 -fexceptions -fms-extensions -emit-llvm -o - | FileCheck %s
 
-// This is a codegen test because we only emit the diagnostic when we start
-// generating code.
+// FIXME: Perform this outlining automatically CodeGen.
+void try_body(int numerator, int denominator, int *myres) {
+  *myres = numerator / denominator;
+}
+// CHECK-LABEL: define void @try_body(i32 %numerator, i32 %denominator, i32* %myres)
+// CHECK: sdiv i32
+// CHECK: store i32 %{{.*}}, i32*
+// CHECK: ret void
 
-int SaveDiv(int numerator, int denominator, int *res) {
+int safe_div(int numerator, int denominator, int *res) {
   int myres = 0;
+  int success = 1;
   __try {
-    myres = numerator / denominator;
-    __leave;
+    try_body(numerator, denominator, &myres);
   } __except (1) {
-    return 0;
+    success = -42;
   }
   *res = myres;
-  return 1;
+  return success;
+}
+// CHECK-LABEL: define i32 @safe_div(i32 %numerator, i32 %denominator, i32* %res)
+// CHECK: invoke void @try_body(i32 %{{.*}}, i32 %{{.*}}, i32* %{{.*}})
+// CHECK:       to label %{{.*}} unwind label %[[lpad:[^ ]*]]
+//
+// CHECK: [[lpad]]
+// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
+// CHECK: %[[sel:[^ ]*]] = load i32*
+// CHECK: %[[filt_id:[^ ]*]] = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@safe_div@@" to i8*))
+// CHECK: %[[matches:[^ ]*]] = icmp eq i32 %[[sel]], %[[filt_id]]
+// CHECK: br i1 %[[matches]], label %[[except_bb:[^ ]*]], label %{{.*}}
+//
+// CHECK: [[except_bb]]
+// CHECK: store i32 -42, i32* %[[success:[^ ]*]]
+//
+// CHECK: %[[res:[^ ]*]] = load i32* %[[success]]
+// CHECK: ret i32 %[[res]]
+
+void j(void);
+
+// FIXME: Implement local variable captures in filter expressions.
+int filter_expr_capture() {
+  int r = 42;
+  __try {
+    j();
+  } __except(/*r =*/ -1) {
+    r = 13;
+  }
+  return r;
+}
+
+// CHECK-LABEL: define i32 @filter_expr_capture()
+// FIXMECHECK: %[[captures]] = call i8* @llvm.frameallocate(i32 4)
+// CHECK: store i32 42, i32* %[[r:[^ ,]*]]
+// CHECK: invoke void @j()
+//
+// CHECK: landingpad
+// CHECK-NEXT: catch i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@filter_expr_capture@@" to i8*)
+// CHECK: store i32 13, i32* %[[r]]
+//
+// CHECK: %[[rv:[^ ]*]] = load i32* %[[r]]
+// CHECK: ret i32 %[[rv]]
+
+// CHECK-LABEL: define internal i32 @"\01?filt$0@0@filter_expr_capture@@"(i8* %exception_pointers, i8* %frame_pointer)
+// FIXMECHECK: %[[captures]] = call i8* @llvm.framerecover(i8* bitcast (i32 ()* @filter_expr_capture, i8* %frame_pointer)
+// FIXMECHECK: store i32 -1, i32* %{{.*}}
+// CHECK: ret i32 -1
+
+int nested_try() {
+  int r = 42;
+  __try {
+    __try {
+      j();
+      r = 0;
+    } __except(_exception_code() == 123) {
+      r = 123;
+    }
+  } __except(_exception_code() == 456) {
+    r = 456;
+  }
+  return r;
+}
+// CHECK-LABEL: define i32 @nested_try()
+// CHECK: store i32 42, i32* %[[r:[^ ,]*]]
+// CHECK: invoke void @j()
+// CHECK:       to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
+//
+// CHECK: [[cont]]
+// CHECK: store i32 0, i32* %[[r]]
+// CHECK: br label %[[inner_try_cont:[^ ]*]]
+//
+// CHECK: [[lpad]]
+// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
+// CHECK: catch i8* bitcast (i32 (i8*, i8*)* @"\01?filt$1@0@nested_try@@" to i8*)
+// CHECK: catch i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@nested_try@@" to i8*)
+// CHECK: store i8* %{{.*}}, i8** %[[ehptr_slot:[^ ]*]]
+// CHECK: store i32 %{{.*}}, i32* %[[sel_slot:[^ ]*]]
+//
+// CHECK: load i32* %[[sel_slot]]
+// CHECK: call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @"\01?filt$1@0@nested_try@@" to i8*))
+// CHECK: icmp eq i32
+// CHECK: br i1
+//
+// CHECK: load i32* %[[sel_slot]]
+// CHECK: call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@nested_try@@" to i8*))
+// CHECK: icmp eq i32
+// CHECK: br i1
+//
+// CHECK: store i32 456, i32* %[[r]]
+// CHECK: br label %[[outer_try_cont:[^ ]*]]
+//
+// CHECK: [[outer_try_cont]]
+// CHECK: %[[r_load:[^ ]*]] = load i32* %[[r]]
+// CHECK: ret i32 %[[r_load]]
+//
+// CHECK: store i32 123, i32* %[[r]]
+// CHECK: br label %[[inner_try_cont]]
+//
+// CHECK: [[inner_try_cont]]
+// CHECK: br label %[[outer_try_cont]]
+
+// FIXME: This lowering of __finally can't actually work, it will have to
+// change.
+static unsigned g = 0;
+void basic_finally() {
+  ++g;
+  __try {
+    j();
+  } __finally {
+    --g;
+  }
 }
-// CHECK-NOT: error:
-// CHECK: error: cannot compile this SEH __try yet
-// CHECK-NOT: error:
+// CHECK-LABEL: define void @basic_finally()
+// CHECK: load i32* @g
+// CHECK: add i32 %{{.*}}, 1
+// CHECK: store i32 %{{.*}}, i32* @g
+//
+// CHECK: invoke void @j()
+// CHECK:       to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
+//
+// CHECK: [[cont]]
+// CHECK: load i32* @g
+// CHECK: add i32 %{{.*}}, -1
+// CHECK: store i32 %{{.*}}, i32* @g
+// CHECK: ret void
+//
+// CHECK: [[lpad]]
+// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
+// CHECK-NEXT: cleanup
+// CHECK: load i32* @g
+// CHECK: add i32 %{{.*}}, -1
+// CHECK: store i32 %{{.*}}, i32* @g
+// CHECK: resume