From bfedffd3b8a744d35246cce4f2ed3a748c7d8961 Mon Sep 17 00:00:00 2001
From: Adrian Prantl <aprantl@apple.com>
Date: Tue, 20 Jun 2017 21:08:19 +0000
Subject: [PATCH] Add previously accidentally uncommitted testcase for r305599.

llvm-svn: 305852
---
 test/DebugInfo/Generic/partial-constant.ll | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 test/DebugInfo/Generic/partial-constant.ll

diff --git a/test/DebugInfo/Generic/partial-constant.ll b/test/DebugInfo/Generic/partial-constant.ll
new file mode 100644
index 00000000000..c3abccbc45c
--- /dev/null
+++ b/test/DebugInfo/Generic/partial-constant.ll
@@ -0,0 +1,82 @@
+; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump - | FileCheck %s
+; Generated at -O2 from:
+; bool c();
+; void f();
+; bool start() {
+;   bool result = c();
+;   if (!c()) {
+;     result = false;
+;     goto exit;
+;   }
+;   f();
+;   result = true;
+; exit:
+;   return result;
+; }
+;
+; The constant should NOT be available for the entire function.
+; CHECK-NOT: DW_AT_const_value
+; CHECK: .debug_loc
+; CHECK: Location description: 10 01 9f
+;                              constu 0x00000001, stack-value
+source_filename = "test.ii"
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.12.0"
+
+; Function Attrs: noimplicitfloat noredzone nounwind optsize
+define zeroext i1 @_Z5startv() local_unnamed_addr #0 !dbg !7 {
+entry:
+  %call = tail call zeroext i1 @_Z1cv() #3, !dbg !13
+  %call1 = tail call zeroext i1 @_Z1cv() #3, !dbg !14
+  br i1 %call1, label %if.end, label %exit, !dbg !16
+
+if.end:                                           ; preds = %entry
+  tail call void @_Z1fv() #3, !dbg !17
+  tail call void @llvm.dbg.value(metadata i8 1, i64 0, metadata !12, metadata !18), !dbg !19
+  br label %exit, !dbg !20
+
+exit:                                             ; preds = %entry, %if.end
+  %result.0 = phi i1 [ true, %if.end ], [ false, %entry ]
+  ret i1 %result.0, !dbg !21
+}
+
+; Function Attrs: noimplicitfloat noredzone optsize
+declare zeroext i1 @_Z1cv() local_unnamed_addr #1
+
+; Function Attrs: noimplicitfloat noredzone optsize
+declare void @_Z1fv() local_unnamed_addr #1
+
+; Function Attrs: nounwind readnone speculatable
+declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
+
+attributes #0 = { noimplicitfloat noredzone nounwind optsize }
+attributes #1 = { noimplicitfloat noredzone optsize }
+attributes #2 = { nounwind readnone speculatable }
+attributes #3 = { nobuiltin noimplicitfloat noredzone nounwind optsize }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
+!1 = !DIFile(filename: "test.ii", directory: "/")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"wchar_size", i32 4}
+!6 = !{!"clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)"}
+!7 = distinct !DISubprogram(name: "start", linkageName: "_Z5startv", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !11)
+!8 = !DISubroutineType(types: !9)
+!9 = !{!10}
+!10 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
+!11 = !{!12}
+!12 = !DILocalVariable(name: "result", scope: !7, file: !1, line: 4, type: !10)
+!13 = !DILocation(line: 4, column: 17, scope: !7)
+!14 = !DILocation(line: 5, column: 8, scope: !15)
+!15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 5, column: 7)
+!16 = !DILocation(line: 5, column: 7, scope: !7)
+!17 = !DILocation(line: 9, column: 3, scope: !7)
+!18 = !DIExpression()
+!19 = !DILocation(line: 4, column: 8, scope: !7)
+!20 = !DILocation(line: 10, column: 3, scope: !7)
+!21 = !DILocation(line: 12, column: 3, scope: !7)