// RUN: %target-swift-frontend %s -S -g -o - | %FileCheck %s

func markUsed<T>(_ t: T) {}
// CHECK: {{_?}}main:
// CHECK: Lfunc_begin0:
// Verify that the top-level function (main) begins at line 0 and then
// proceeds to the first line.
// CHECK: .loc    {{[0-9]}} 0 {{[0-9]}}
// CHECK-NOT: Lfunc_end0:
// CHECK: .loc    {{[0-9]}} [[@LINE+1]] {{[0-9]}} prologue_end
var a = 1
var b = 2
markUsed(a+b)

// RUN: %target-swift-frontend %s -S -g -o - | %FileCheck %s

func markUsed<T>(_ t: T) {}
// CHECK: {{_?}}main:
// CHECK-NEXT: Lfunc_begin0:
// Verify that the top-level function (main) begins at line 0 and then
// proceeds to the first line.
// CHECK: .loc    {{[0-9]}} 0 {{[0-9]}}
// CHECK-NOT: Lfunc_end0:
// CHECK: .loc    {{[0-9]}} [[@LINE+1]] {{[0-9]}} prologue_end
var a = 1
var b = 2
markUsed(a+b)

--- 
+++ 
@@ -2,7 +2,7 @@
 
 func markUsed<T>(_ t: T) {}
 // CHECK: {{_?}}main:
-// CHECK-NEXT: Lfunc_begin0:
+// CHECK: Lfunc_begin0:
 // Verify that the top-level function (main) begins at line 0 and then
 // proceeds to the first line.
 // CHECK: .loc    {{[0-9]}} 0 {{[0-9]}}
Update test for upstream codegen changes
