Reland "[DwarfDebug] Dump call site debug info"

The build failure found after the rL365467 has been
resolved.

Differential Revision: https://reviews.llvm.org/D60716

llvm-svn: 367446

1 files changed, 76 insertions, 0 deletions

diff --git a/llvm/test/tools/llvm-dwarfdump/X86/stats-dbg-callsite-info.ll b/llvm/test/tools/llvm-dwarfdump/X86/stats-dbg-callsite-info.ll
new file mode 100644
index 00000000000..53cad41e2b6
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/stats-dbg-callsite-info.ll
@@ -0,0 +1,76 @@
+; RUN: llc -debug-entry-values %s -o - -filetype=obj \
+; RUN:   | llvm-dwarfdump -statistics - | FileCheck %s
+;
+; The LLVM IR file was generated on this source code by using
+; option '-femit-param-entry-values'.
+;
+; extern void foo(int *a, int b, int c, int d, int e, int f);
+; extern int getVal();
+;
+; void baa(int arg1, int arg2, int arg3) {
+;   int local1 = getVal();
+;   foo(&local1, arg2, 10, 15, arg3 + 3, arg1 + arg2);
+; }
+;
+; CHECK: "call site DIEs":2
+; CHECK-SAME: "call site parameter DIEs":6
+;
+; ModuleID = 'test.c'
+source_filename = "test.c"
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define dso_local void @baa(i32 %arg1, i32 %arg2, i32 %arg3) local_unnamed_addr #0 !dbg !10 {
+entry:
+  %local1 = alloca i32, align 4
+  call void @llvm.dbg.value(metadata i32 %arg1, metadata !15, metadata !DIExpression()), !dbg !19
+  call void @llvm.dbg.value(metadata i32 %arg2, metadata !16, metadata !DIExpression()), !dbg !20
+  call void @llvm.dbg.value(metadata i32 %arg3, metadata !17, metadata !DIExpression()), !dbg !21
+  %0 = bitcast i32* %local1 to i8*, !dbg !22
+  %call = tail call i32 (...) @getVal(), !dbg !23
+  call void @llvm.dbg.value(metadata i32 %call, metadata !18, metadata !DIExpression()), !dbg !24
+  store i32 %call, i32* %local1, align 4, !dbg !24
+  %add = add nsw i32 %arg3, 3, !dbg !24
+  %add1 = add nsw i32 %arg2, %arg1, !dbg !24
+  call void @llvm.dbg.value(metadata i32* %local1, metadata !18, metadata !DIExpression(DW_OP_deref)), !dbg !24
+  call void @foo(i32* nonnull %local1, i32 %arg2, i32 10, i32 15, i32 %add, i32 %add1), !dbg !24
+  ret void, !dbg !24
+}
+
+declare !dbg !4 dso_local i32 @getVal(...) local_unnamed_addr
+
+declare !dbg !5 dso_local void @foo(i32*, i32, i32, i32, i32, i32) local_unnamed_addr
+
+; Function Attrs: nounwind readnone speculatable
+declare void @llvm.dbg.value(metadata, metadata, metadata)
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!6, !7, !8}
+!llvm.ident = !{!9}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 9.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
+!1 = !DIFile(filename: "test.c", directory: "/dir")
+!2 = !{}
+!3 = !{!4, !5}
+!4 = !DISubprogram(name: "getVal", scope: !1, file: !1, line: 2, spFlags: DISPFlagOptimized, retainedNodes: !2)
+!5 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
+!6 = !{i32 2, !"Dwarf Version", i32 4}
+!7 = !{i32 2, !"Debug Info Version", i32 3}
+!8 = !{i32 1, !"wchar_size", i32 4}
+!9 = !{!"clang version 9.0.0"}
+!10 = distinct !DISubprogram(name: "baa", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !14)
+!11 = !DISubroutineType(types: !12)
+!12 = !{null, !13, !13, !13}
+!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!14 = !{!15, !16, !17, !18}
+!15 = !DILocalVariable(name: "arg1", arg: 1, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
+!16 = !DILocalVariable(name: "arg2", arg: 2, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
+!17 = !DILocalVariable(name: "arg3", arg: 3, scope: !10, file: !1, line: 4, type: !13, flags: DIFlagArgumentNotModified)
+!18 = !DILocalVariable(name: "local1", scope: !10, file: !1, line: 5, type: !13)
+!19 = !DILocation(line: 4, column: 14, scope: !10)
+!20 = !DILocation(line: 4, column: 24, scope: !10)
+!21 = !DILocation(line: 4, column: 34, scope: !10)
+!22 = !DILocation(line: 5, column: 3, scope: !10)
+!23 = !DILocation(line: 5, column: 16, scope: !10)
+!24 = !DILocation(line: 5, column: 7, scope: !10)