From 4994bc0474d62ad742329584af5e230e5c56649d Mon Sep 17 00:00:00 2001
From: Adrian Prantl <aprantl@apple.com>
Date: Fri, 24 Mar 2017 19:11:31 +0000
Subject: [PATCH] Make testcase less nonsensical while still exercising the
 same code paths.

llvm-svn: 298726
---
 llvm/test/DebugInfo/X86/stack-value-dwarf4.ll | 44 ++++++++++---------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/llvm/test/DebugInfo/X86/stack-value-dwarf4.ll b/llvm/test/DebugInfo/X86/stack-value-dwarf4.ll
index 5f9213f3bdd4..7ad7cceb7ff0 100644
--- a/llvm/test/DebugInfo/X86/stack-value-dwarf4.ll
+++ b/llvm/test/DebugInfo/X86/stack-value-dwarf4.ll
@@ -1,38 +1,42 @@
 ; RUN: llc -o - %s | FileCheck --check-prefix=CHECK-DWARF2 %s
 ; RUN: llc -dwarf-version=4 -o - %s | FileCheck --check-prefix=CHECK-DWARF4 %s
 
+; Exercise DW_OP_stack_value on global constants.
+
 target datalayout = "e-p:64:64"
 target triple = "x86_64-unknown-linux-gnu"
 
-; CHECK-DWARF2:      .byte	13                      # DW_AT_location
-; CHECK-DWARF2-NEXT: .byte	3
-; CHECK-DWARF2-NEXT: .quad	g
-; CHECK-DWARF2-NEXT: .byte	16
-; CHECK-DWARF2-NEXT: .byte	4
-; CHECK-DWARF2-NEXT: .byte	16
-; CHECK-DWARF2-NEXT: .byte	4
+; CHECK-DWARF2: .byte	8                       # DW_AT_location
+; CHECK-DWARF2	.byte	16
+; CHECK-DWARF2	.byte	4
+; CHECK-DWARF2	.byte	147
+; CHECK-DWARF2	.byte	2
+; CHECK-DWARF2	.byte	16
+; CHECK-DWARF2	.byte	0
+; CHECK-DWARF2	.byte	147
+; CHECK-DWARF2	.byte	2
 
-; CHECK-DWARF4:      .byte	14                      # DW_AT_location
-; CHECK-DWARF4-NEXT: .byte	3
-; CHECK-DWARF4-NEXT: .quad	g
-; CHECK-DWARF4-NEXT: .byte	16
-; CHECK-DWARF4-NEXT: .byte	4
-; CHECK-DWARF4-NEXT: .byte	16
-; CHECK-DWARF4-NEXT: .byte	4
-; CHECK-DWARF4-NEXT: .byte	159
-
-@g = global i32 0, !dbg !2
+; CHECK-DWARF4:       .byte	10                      # DW_AT_location
+; CHECK-DWARF4-NEXT:  .byte	16
+; CHECK-DWARF4-NEXT:  .byte	4
+; CHECK-DWARF4-NEXT:  .byte	159
+; CHECK-DWARF4-NEXT:  .byte	147
+; CHECK-DWARF4-NEXT:  .byte	2
+; CHECK-DWARF4-NEXT:  .byte	16
+; CHECK-DWARF4-NEXT:  .byte	0
+; CHECK-DWARF4-NEXT:  .byte	159
 
 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang", file: !4, globals: !1, emissionKind: FullDebug)
-!1 = !{!2}
+!1 = !{!2, !10}
 !2 = !DIGlobalVariableExpression(var: !8, expr: !3)
-!3 = !DIExpression(DW_OP_constu, 4, DW_OP_constu, 4, DW_OP_stack_value)
+!3 = !DIExpression(DW_OP_constu, 4, DW_OP_stack_value, DW_OP_LLVM_fragment, 0, 16)
 !4 = !DIFile(filename: "<stdin>", directory: "/")
 !5 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-
 !6 = !{i32 2, !"Dwarf Version", i32 2}
 !7 = !{i32 2, !"Debug Info Version", i32 3}
 !8 = distinct !DIGlobalVariable(name: "a", scope: null, isLocal: false, isDefinition: true, type: !5)
+!9 = !DIExpression(DW_OP_constu, 0, DW_OP_stack_value, DW_OP_LLVM_fragment, 16, 16)
+!10 = !DIGlobalVariableExpression(var: !8, expr: !9)
 
 !llvm.dbg.cu = !{!0}
 !llvm.module.flags = !{!6, !7}