75 lines · plain
1; This test checks if debug loc is propagated to load/store created by GVN/Instcombine.2; RUN: opt < %s -passes=gvn -S | FileCheck %s --check-prefixes=ALL3; RUN: opt < %s -passes=gvn,instcombine -S | FileCheck %s --check-prefixes=ALL4 5; struct node {6; int *v;7; struct desc *descs;8; };9 10; struct desc {11; struct node *node;12; };13 14; extern int bar(ptr v, ptr n);15 16; int test(struct desc *desc)17; {18; ptr v, *n;19; v = !desc ? ((ptr)0) : desc->node->v; // Line 1520; n = &desc->node->descs[0]; // Line 1621; return bar(v, n);22; }23 24; Line 16, Column 13:25; n = &desc->node->descs[0];26; ^27 28target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"29 30%struct.desc = type { ptr }31%struct.node = type { ptr, ptr }32 33define i32 @test(ptr readonly %desc) local_unnamed_addr #0 !dbg !4 {34entry:35 %tobool = icmp eq ptr %desc, null36 br i1 %tobool, label %cond.end, label %cond.false, !dbg !937; ALL: %.pre = load ptr, ptr %desc, align 8, !dbg [[LOC_16_13:![0-9]+]]38; ALL: br i1 %tobool, label %cond.end, label %cond.false, !dbg [[LOC_15_6:![0-9]+]]39; ALL: cond.false:40 41cond.false:42 %0 = load ptr, ptr %desc, align 8, !dbg !1143 %1 = load ptr, ptr %0, align 844 br label %cond.end, !dbg !945 46cond.end:47 %2 = phi ptr [ %1, %cond.false ], [ null, %entry ], !dbg !948 %3 = load ptr, ptr %desc, align 8, !dbg !1049 %descs = getelementptr inbounds %struct.node, ptr %3, i64 0, i32 150 %4 = load ptr, ptr %descs, align 851 %call = tail call i32 @bar(ptr %2, ptr %4)52 ret i32 %call53}54 55declare i32 @bar(ptr, ptr) local_unnamed_addr #156!llvm.dbg.cu = !{!0}57!llvm.module.flags = !{!2, !3}58 59!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, emissionKind: FullDebug)60!1 = !DIFile(filename: "test.c", directory: ".")61!2 = !{i32 2, !"Dwarf Version", i32 4}62!3 = !{i32 2, !"Debug Info Version", i32 3}63!4 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 12, type: !5, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)64!5 = !DISubroutineType(types: !6)65!6 = !{!7}66!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)67!8 = !{}68!9 = !DILocation(line: 15, column: 6, scope: !4)69!10 = !DILocation(line: 16, column: 13, scope: !4)70!11 = !DILocation(line: 15, column: 34, scope: !4)71 72;ALL: [[SCOPE:![0-9]+]] = distinct !DISubprogram(name: "test",{{.*}}73;ALL: [[LOC_16_13]] = !DILocation(line: 16, column: 13, scope: [[SCOPE]])74;ALL: [[LOC_15_6]] = !DILocation(line: 15, column: 6, scope: [[SCOPE]])75