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https://github.com/RPCS3/llvm-mirror.git
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08fbde827c
The debug-use flag must be set exactly for uses on DBG_VALUEs. This is so obvious that it can be trivially inferred while parsing. This will reduce noise when printing while omitting an information that has little value to the user. The parser will keep recognizing the flag for compatibility with old `.mir` files. Differential Revision: https://reviews.llvm.org/D53903 llvm-svn: 345671
134 lines
7.0 KiB
LLVM
134 lines
7.0 KiB
LLVM
; RUN: llc < %s -print-machineinstrs 2>&1 | FileCheck %s
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; CHECK: After WebAssembly Register Stackify:
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; CHECK: bb.3.for.body.for.body_crit_edge:
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; CHECK: [[REG:%[0-9]+]]:i32 = nsw ADD_I32 {{.*}} fib.c:7:7
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; CHECK-NEXT: DBG_VALUE [[REG]]:i32, $noreg, !"a", {{.*}} fib.c:5:13
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; CHECK: After WebAssembly Register Coloring:
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; ModuleID = 'fib.bc'
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; The test generated via: clang --target=wasm32-unknown-unknown-wasm fib.c -g -O2
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; All lifetime markers and attributes were removed.
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source_filename = "fib.c"
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; void swap(int* a, int* b);
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;
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; __attribute__ ((visibility ("default")))
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; int fib(int n) {
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; int i, t, a = 0, b = 1;
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; for (i = 0; i < n; i++) {
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; a += b;
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; swap(&a, &b);
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; }
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; return b;
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; }
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown-wasm"
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; Function Attrs: nounwind
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define i32 @fib(i32 %n) local_unnamed_addr #0 !dbg !7 {
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entry:
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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call void @llvm.dbg.value(metadata i32 %n, metadata !12, metadata !DIExpression()), !dbg !17
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%0 = bitcast i32* %a to i8*, !dbg !18
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call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !19
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store i32 0, i32* %a, align 4, !dbg !19, !tbaa !20
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%1 = bitcast i32* %b to i8*, !dbg !18
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call void @llvm.dbg.value(metadata i32 1, metadata !16, metadata !DIExpression()), !dbg !24
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store i32 1, i32* %b, align 4, !dbg !24, !tbaa !20
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call void @llvm.dbg.value(metadata i32 0, metadata !13, metadata !DIExpression()), !dbg !25
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%cmp4 = icmp sgt i32 %n, 0, !dbg !26
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call void @llvm.dbg.value(metadata i32 1, metadata !16, metadata !DIExpression()), !dbg !24
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br i1 %cmp4, label %for.body.preheader, label %for.end, !dbg !29
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for.body.preheader: ; preds = %entry
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call void @llvm.dbg.value(metadata i32 0, metadata !13, metadata !DIExpression()), !dbg !25
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call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !19
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call void @llvm.dbg.value(metadata i32 1, metadata !15, metadata !DIExpression()), !dbg !19
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store i32 1, i32* %a, align 4, !dbg !30, !tbaa !20
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call void @llvm.dbg.value(metadata i32* %a, metadata !15, metadata !DIExpression()), !dbg !19
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call void @llvm.dbg.value(metadata i32* %b, metadata !16, metadata !DIExpression()), !dbg !24
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call void @swap(i32* nonnull %a, i32* nonnull %b) #5, !dbg !32
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call void @llvm.dbg.value(metadata i32 1, metadata !13, metadata !DIExpression()), !dbg !25
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%2 = load i32, i32* %b, align 4, !dbg !33, !tbaa !20
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call void @llvm.dbg.value(metadata i32 %2, metadata !16, metadata !DIExpression()), !dbg !24
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%exitcond9 = icmp eq i32 %n, 1, !dbg !26
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br i1 %exitcond9, label %for.end, label %for.body.for.body_crit_edge, !dbg !29, !llvm.loop !34
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for.body.for.body_crit_edge: ; preds = %for.body.preheader, %for.body.for.body_crit_edge
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%3 = phi i32 [ %4, %for.body.for.body_crit_edge ], [ %2, %for.body.preheader ]
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%inc10 = phi i32 [ %inc, %for.body.for.body_crit_edge ], [ 1, %for.body.preheader ]
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%.pre = load i32, i32* %a, align 4, !dbg !30, !tbaa !20
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call void @llvm.dbg.value(metadata i32 %inc10, metadata !13, metadata !DIExpression()), !dbg !25
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call void @llvm.dbg.value(metadata i32 %.pre, metadata !15, metadata !DIExpression()), !dbg !19
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%add = add nsw i32 %.pre, %3, !dbg !30
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call void @llvm.dbg.value(metadata i32 %add, metadata !15, metadata !DIExpression()), !dbg !19
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store i32 %add, i32* %a, align 4, !dbg !30, !tbaa !20
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call void @llvm.dbg.value(metadata i32* %a, metadata !15, metadata !DIExpression()), !dbg !19
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call void @llvm.dbg.value(metadata i32* %b, metadata !16, metadata !DIExpression()), !dbg !24
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call void @swap(i32* nonnull %a, i32* nonnull %b) #5, !dbg !32
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%inc = add nuw nsw i32 %inc10, 1, !dbg !36
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call void @llvm.dbg.value(metadata i32 %inc, metadata !13, metadata !DIExpression()), !dbg !25
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%4 = load i32, i32* %b, align 4, !dbg !33, !tbaa !20
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call void @llvm.dbg.value(metadata i32 %4, metadata !16, metadata !DIExpression()), !dbg !24
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%exitcond = icmp eq i32 %inc, %n, !dbg !26
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br i1 %exitcond, label %for.end, label %for.body.for.body_crit_edge, !dbg !29, !llvm.loop !34
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for.end: ; preds = %for.body.for.body_crit_edge, %for.body.preheader, %entry
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%.lcssa = phi i32 [ 1, %entry ], [ %2, %for.body.preheader ], [ %4, %for.body.for.body_crit_edge ]
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ret i32 %.lcssa, !dbg !38
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}
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declare void @swap(i32*, i32*) local_unnamed_addr #2
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #4
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 334610)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "fib.c", directory: "/d/y/llvmwasm")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 7.0.0 (trunk 334610)"}
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!7 = distinct !DISubprogram(name: "fib", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13, !14, !15, !16}
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!12 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 4, type: !10)
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!13 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 5, type: !10)
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!14 = !DILocalVariable(name: "t", scope: !7, file: !1, line: 5, type: !10)
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!15 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 5, type: !10)
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!16 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 5, type: !10)
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!17 = !DILocation(line: 4, column: 13, scope: !7)
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!18 = !DILocation(line: 5, column: 3, scope: !7)
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!19 = !DILocation(line: 5, column: 13, scope: !7)
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!20 = !{!21, !21, i64 0}
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!21 = !{!"int", !22, i64 0}
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!22 = !{!"omnipotent char", !23, i64 0}
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!23 = !{!"Simple C/C++ TBAA"}
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!24 = !DILocation(line: 5, column: 20, scope: !7)
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!25 = !DILocation(line: 5, column: 7, scope: !7)
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!26 = !DILocation(line: 6, column: 17, scope: !27)
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!27 = distinct !DILexicalBlock(scope: !28, file: !1, line: 6, column: 3)
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!28 = distinct !DILexicalBlock(scope: !7, file: !1, line: 6, column: 3)
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!29 = !DILocation(line: 6, column: 3, scope: !28)
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!30 = !DILocation(line: 7, column: 7, scope: !31)
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!31 = distinct !DILexicalBlock(scope: !27, file: !1, line: 6, column: 27)
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!32 = !DILocation(line: 8, column: 5, scope: !31)
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!33 = !DILocation(line: 0, scope: !7)
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!34 = distinct !{!34, !29, !35}
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!35 = !DILocation(line: 9, column: 3, scope: !28)
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!36 = !DILocation(line: 6, column: 23, scope: !27)
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!37 = !DILocation(line: 11, column: 1, scope: !7)
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!38 = !DILocation(line: 10, column: 3, scope: !7)
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!39 = distinct !DISubprogram(name: "_start", scope: !1, file: !1, line: 13, type: !40, isLocal: false, isDefinition: true, scopeLine: 13, isOptimized: true, unit: !0, retainedNodes: !2)
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!40 = !DISubroutineType(types: !41)
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!41 = !{null}
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!42 = !DILocation(line: 13, column: 16, scope: !39)
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