From e5089e2e94796650115baf8e6d1db380003ad07d Mon Sep 17 00:00:00 2001 From: Florian Hahn Date: Fri, 8 Dec 2017 21:49:03 +0000 Subject: [CodeExtractor] Add debug locations for new call and branch instrs. Summary: If a partially inlined function has debug info, we have to add debug locations to the call instruction calling the outlined function. We use the debug location of the first instruction in the outlined function, as the introduced call transfers control to this statement and there is no other equivalent line in the source code. We also use the same debug location for the branch instruction added to jump from artificial entry block for the outlined function, which just jumps to the first actual basic block of the outlined function. Reviewers: davide, aprantl, rriddle, dblaikie, danielcdh, wmi Reviewed By: aprantl, rriddle, danielcdh Subscribers: eraman, JDevlieghere, llvm-commits Differential Revision: https://reviews.llvm.org/D40413 llvm-svn: 320199 --- .../Transforms/CodeExtractor/PartialInlineDebug.ll | 104 +++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 llvm/test/Transforms/CodeExtractor/PartialInlineDebug.ll (limited to 'llvm/test/Transforms/CodeExtractor') diff --git a/llvm/test/Transforms/CodeExtractor/PartialInlineDebug.ll b/llvm/test/Transforms/CodeExtractor/PartialInlineDebug.ll new file mode 100644 index 00000000000..f03b3834561 --- /dev/null +++ b/llvm/test/Transforms/CodeExtractor/PartialInlineDebug.ll @@ -0,0 +1,104 @@ +; RUN: opt < %s -S -partial-inliner -skip-partial-inlining-cost-analysis=true | FileCheck %s + +; CHECK-LABEL: @callee +; CHECK: %mul = mul nsw i32 %v, 10, !dbg ![[DBG1:[0-9]+]] +define i32 @callee(i32 %v) !dbg !16 { +entry: + %cmp = icmp sgt i32 %v, 2000 + br i1 %cmp, label %if.then, label %if.end + +if.then: ; preds = %entry + %mul = mul nsw i32 %v, 10, !dbg !17 + br label %if.then2 + +if.then2: + %sub = sub i32 %v, 10, !dbg !23 + br label %if.end + +if.end: ; preds = %if.then, %entry + %v2 = phi i32 [ %v, %entry ], [ %mul, %if.then2 ] + %add = add nsw i32 %v2, 200 + ret i32 %add +} + +; CHECK-LABEL: @caller +; CHECK: codeRepl.i: +; CHECK-NEXT: call void @callee.2_if.then(i32 %v, i32* %mul.loc.i), !dbg ![[DBG2:[0-9]+]] +define i32 @caller(i32 %v) !dbg !8 { +entry: + %call = call i32 @callee(i32 %v), !dbg !14 + ret i32 %call +} + + +; CHECK-LABEL: @callee2 +; CHECK: %sub = sub i32 %v, 10, !dbg ![[DBG3:[0-9]+]] +define i32 @callee2(i32 %v) !dbg !18 { +entry: + %cmp = icmp sgt i32 %v, 2000 + br i1 %cmp, label %if.then, label %if.end + +if.then: + br label %if.then2 + +if.then2: + %sub = sub i32 %v, 10, !dbg !20 + br label %if.end + +if.end: + %v2 = phi i32 [ %v, %entry ], [ %sub, %if.then2 ] + %add = add nsw i32 %v2, 200 + ret i32 %add +} + +; CHECK-LABEL: @caller2 +; CHECK: codeRepl.i: +; CHECK-NEXT: call void @callee2.1_if.then(i32 %v, i32* %sub.loc.i), !dbg ![[DBG4:[0-9]+]] +define i32 @caller2(i32 %v) !dbg !21 { +entry: + %call = call i32 @callee2(i32 %v), !dbg !22 + ret i32 %call +} + +; CHECK-LABEL: define internal void @callee2.1_if.then +; CHECK: br label %if.then, !dbg ![[DBG5:[0-9]+]] + +; CHECK-LABEL: define internal void @callee.2_if.then +; CHECK: br label %if.then, !dbg ![[DBG6:[0-9]+]] + +; CHECK: ![[DBG1]] = !DILocation(line: 10, column: 7, +; CHECK: ![[DBG2]] = !DILocation(line: 10, column: 7, +; CHECK: ![[DBG3]] = !DILocation(line: 110, column: 17, +; CHECK: ![[DBG4]] = !DILocation(line: 110, column: 17, +; CHECK: ![[DBG5]] = !DILocation(line: 110, column: 17, +; CHECK: ![[DBG6]] = !DILocation(line: 10, column: 7, + + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5, !6} +!llvm.ident = !{!7} + +!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 177881)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) +!1 = !DIFile(filename: "test.c", directory: "/tmp") +!2 = !{} +!3 = !{i32 2, !"Dwarf Version", i32 4} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!6 = !{i32 1, !"min_enum_size", i32 4} +!7 = !{!"clang version 6.0.0"} +!8 = distinct !DISubprogram(name: "caller", scope: !1, file: !1, line: 3, type: !9, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12) +!9 = !DISubroutineType(types: !10) +!10 = !{!11, !11} +!11 = !DIBasicType(name: "int", size: 19, encoding: DW_ATE_signed) +!12 = !{!13} +!13 = !DILocalVariable(name: "v", arg: 1, scope: !8, file: !1, line: 3, type: !11) +!14 = !DILocation(line: 5, column: 10, scope: !8) +!15 = distinct !DILexicalBlock(scope: !16, file: !1, line: 9, column: 7) +!16 = distinct !DISubprogram(name: "callee", scope: !1, file: !1, line: 8, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12) +!17 = !DILocation(line: 10, column: 7, scope: !15) +!18 = distinct !DISubprogram(name: "callee2", scope: !1, file: !1, line: 8, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12) +!19 = distinct !DILexicalBlock(scope: !18, file: !1, line: 100, column: 1) +!20 = !DILocation(line: 110, column: 17, scope: !19) +!21 = distinct !DISubprogram(name: "caller2", scope: !1, file: !1, line: 8, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12) +!22 = !DILocation(line: 110, column: 17, scope: !21) +!23 = !DILocation(line: 15, column: 7, scope: !15) -- cgit v1.2.3