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https://github.com/RPCS3/llvm-mirror.git
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67886a34d2
Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
142 lines
6.4 KiB
LLVM
142 lines
6.4 KiB
LLVM
; RUN: opt -sroa < %s -S -o - | FileCheck %s
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;
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; Test that recursively splitting an alloca updates the debug info correctly.
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; CHECK: %[[T:.*]] = load i64, i64* @t, align 8
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; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], metadata ![[Y:.*]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64))
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; CHECK: %[[T1:.*]] = load i64, i64* @t, align 8
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; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], metadata ![[Y]], metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64))
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; CHECK: call void @llvm.dbg.value(metadata i64 %[[T]], metadata ![[R:.*]], metadata !DIExpression(DW_OP_LLVM_fragment, 192, 64))
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; CHECK: call void @llvm.dbg.value(metadata i64 %[[T1]], metadata ![[R]], metadata !DIExpression(DW_OP_LLVM_fragment, 256, 64))
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;
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; struct p {
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; __SIZE_TYPE__ s;
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; __SIZE_TYPE__ t;
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; };
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;
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; struct r {
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; int i;
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; struct p x;
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; struct p y;
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; };
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;
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; extern int call_me(struct r);
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; extern int maybe();
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; extern __SIZE_TYPE__ t;
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;
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; int test() {
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; if (maybe())
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; return 0;
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; struct p y = {t, t};
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; struct r r = {.y = y};
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; return call_me(r);
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; }
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; ModuleID = 'pr22393.cc'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-darwin"
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%struct.p = type { i64, i64 }
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%struct.r = type { i32, %struct.p, %struct.p }
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@t = external global i64
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; Function Attrs: nounwind
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define i32 @_Z4testv() #0 !dbg !17 {
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entry:
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%retval = alloca i32, align 4
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%y = alloca %struct.p, align 8
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%r = alloca %struct.r, align 8
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%agg.tmp = alloca %struct.r, align 8
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%call = call i32 @_Z5maybev(), !dbg !24
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%tobool = icmp ne i32 %call, 0, !dbg !24
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br i1 %tobool, label %if.then, label %if.end, !dbg !26
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if.then: ; preds = %entry
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store i32 0, i32* %retval, !dbg !27
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br label %return, !dbg !27
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if.end: ; preds = %entry
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call void @llvm.dbg.declare(metadata %struct.p* %y, metadata !28, metadata !29), !dbg !30
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%s = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 0, !dbg !30
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%0 = load i64, i64* @t, align 8, !dbg !30
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store i64 %0, i64* %s, align 8, !dbg !30
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%t = getelementptr inbounds %struct.p, %struct.p* %y, i32 0, i32 1, !dbg !30
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%1 = load i64, i64* @t, align 8, !dbg !30
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store i64 %1, i64* %t, align 8, !dbg !30
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call void @llvm.dbg.declare(metadata %struct.r* %r, metadata !31, metadata !29), !dbg !32
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%i = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 0, !dbg !32
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store i32 0, i32* %i, align 4, !dbg !32
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%x = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 1, !dbg !32
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%s1 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 0, !dbg !32
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store i64 0, i64* %s1, align 8, !dbg !32
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%t2 = getelementptr inbounds %struct.p, %struct.p* %x, i32 0, i32 1, !dbg !32
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store i64 0, i64* %t2, align 8, !dbg !32
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%y3 = getelementptr inbounds %struct.r, %struct.r* %r, i32 0, i32 2, !dbg !32
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%2 = bitcast %struct.p* %y3 to i8*, !dbg !32
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%3 = bitcast %struct.p* %y to i8*, !dbg !32
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 16, i32 8, i1 false), !dbg !32
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%4 = bitcast %struct.r* %agg.tmp to i8*, !dbg !33
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%5 = bitcast %struct.r* %r to i8*, !dbg !33
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 8, i1 false), !dbg !33
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%call4 = call i32 @_Z7call_me1r(%struct.r* byval align 8 %agg.tmp), !dbg !33
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store i32 %call4, i32* %retval, !dbg !33
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br label %return, !dbg !33
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return: ; preds = %if.end, %if.then
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%6 = load i32, i32* %retval, !dbg !34
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ret i32 %6, !dbg !34
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}
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declare i32 @_Z5maybev()
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
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; Function Attrs: nounwind
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #3
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declare i32 @_Z7call_me1r(%struct.r* byval align 8)
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attributes #0 = { nounwind }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!21, !22}
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!llvm.ident = !{!23}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
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!1 = !DIFile(filename: "<stdin>", directory: "")
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!2 = !{}
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!3 = !{!4, !10}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "p", line: 3, size: 128, align: 64, file: !5, elements: !6, identifier: "_ZTS1p")
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!5 = !DIFile(filename: "pr22393.cc", directory: "")
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!6 = !{!7, !9}
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!7 = !DIDerivedType(tag: DW_TAG_member, name: "s", line: 4, size: 64, align: 64, file: !5, scope: !4, baseType: !8)
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
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!9 = !DIDerivedType(tag: DW_TAG_member, name: "t", line: 5, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !8)
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!10 = !DICompositeType(tag: DW_TAG_structure_type, name: "r", line: 8, size: 320, align: 64, file: !5, elements: !11, identifier: "_ZTS1r")
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!11 = !{!12, !14, !15}
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!12 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 9, size: 32, align: 32, file: !5, scope: !10, baseType: !13)
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!13 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 10, size: 128, align: 64, offset: 64, file: !5, scope: !10, baseType: !4)
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!15 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 11, size: 128, align: 64, offset: 192, file: !5, scope: !10, baseType: !4)
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!17 = distinct !DISubprogram(name: "test", linkageName: "_Z4testv", line: 18, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 18, file: !5, scope: !18, type: !19, variables: !2)
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!18 = !DIFile(filename: "pr22393.cc", directory: "")
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!19 = !DISubroutineType(types: !20)
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!20 = !{!13}
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!21 = !{i32 2, !"Dwarf Version", i32 4}
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!22 = !{i32 2, !"Debug Info Version", i32 3}
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!23 = !{!"clang version 3.7.0 "}
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!24 = !DILocation(line: 19, scope: !25)
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!25 = distinct !DILexicalBlock(line: 19, column: 0, file: !5, scope: !17)
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!26 = !DILocation(line: 19, scope: !17)
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!27 = !DILocation(line: 20, scope: !25)
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!28 = !DILocalVariable(name: "y", line: 21, scope: !17, file: !18, type: !4)
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!29 = !DIExpression()
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!30 = !DILocation(line: 21, scope: !17)
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!31 = !DILocalVariable(name: "r", line: 22, scope: !17, file: !18, type: !10)
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!32 = !DILocation(line: 22, scope: !17)
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!33 = !DILocation(line: 23, scope: !17)
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!34 = !DILocation(line: 24, scope: !17)
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