mirror of
https://github.com/RPCS3/llvm-mirror.git
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204 lines
8.1 KiB
LLVM
204 lines
8.1 KiB
LLVM
; RUN: llc -O0 < %s | FileCheck %s --check-prefix=CHECK --check-prefix=DEBUG
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; RUN: llc < %s | FileCheck %s
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; RUN: llc -filetype=obj -O0 < %s | llvm-readobj --codeview - | FileCheck %s --check-prefix=OBJ
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; IR generated by the following source:
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; struct NonTrivial {
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; NonTrivial();// : x(42) {}
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; ~NonTrivial();// {}
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; int x;
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; };
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; extern "C" void g(int);// {}
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; extern "C" void h(int);// {}
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; extern "C" void f(NonTrivial a, int b, int unused, int c) {
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; if (b) {
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; g(c);
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; } else {
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; h(a.x);
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; }
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; (void)unused;
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; }
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; //int main() {
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; // NonTrivial x;
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; // f(x, 1, 2, 3);
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; //}
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;
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; Remove C++ comments to have a complete, debuggable program.
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; We don't need (or want) DBG_VALUE instructions to describe the location of
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; inalloca arguments. We want frame indices in the side table, especially at
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; -O0, because they are reliable across the entire function and don't require
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; any propagation or analysis.
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; CHECK: _f: # @f
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; CHECK: Lfunc_begin0:
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; CHECK-NOT: DEBUG_VALUE
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; CHECK: [[start:Ltmp[0-9]+]]:
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; CHECK-NOT: DEBUG_VALUE
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; CHECK: cmpl
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; CHECK: calll _g
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; CHECK: calll _h
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; CHECK: jmp "??1NonTrivial@@QAE@XZ"
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; CHECK: [[end:Ltmp[0-9]+]]:
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; CHECK: Lfunc_end0:
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; FIXME: Optimized debug info should preserve this.
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; DEBUG: .short 4414 # Record kind: S_LOCAL
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; DEBUG: .asciz "a"
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; DEBUG: .cv_def_range [[start]] [[end]]
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; CHECK: .short 4414 # Record kind: S_LOCAL
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; CHECK: .asciz "b"
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; CHECK: .cv_def_range [[start]] [[end]]
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; CHECK: .short 4414 # Record kind: S_LOCAL
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; CHECK: .asciz "c"
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; CHECK: .cv_def_range [[start]] [[end]]
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; OBJ-LABEL: {{.*}}Proc{{.*}}Sym {
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; OBJ: Kind: S_GPROC32_ID (0x1147)
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; OBJ: DisplayName: f
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; OBJ: }
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; OBJ: FrameProcSym {
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; OBJ: Kind: S_FRAMEPROC (0x1012)
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; OBJ: TotalFrameBytes: 0x8
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; OBJ: LocalFramePtrReg: VFRAME (0x7536)
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; OBJ: ParamFramePtrReg: VFRAME (0x7536)
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; OBJ: }
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; OBJ: LocalSym {
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; OBJ: Kind: S_LOCAL (0x113E)
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; OBJ: Type: NonTrivial (0x{{.*}})
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; OBJ: Flags [ (0x1)
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; OBJ: IsParameter (0x1)
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; OBJ: ]
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; OBJ: VarName: a
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; OBJ: }
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; OBJ: DefRangeFramePointerRelSym {
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; OBJ: Offset: 4
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; OBJ: }
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; OBJ: LocalSym {
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; OBJ: Type: int (0x74)
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; OBJ: Flags [ (0x1)
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; OBJ: IsParameter (0x1)
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; OBJ: ]
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; OBJ: VarName: b
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; OBJ: }
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; OBJ: DefRangeFramePointerRelSym {
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; OBJ: Offset: 8
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; OBJ: }
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; FIXME: Retain unused.
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; OBJ: LocalSym {
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; OBJ: Type: int (0x74)
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; OBJ: Flags [ (0x1)
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; OBJ: IsParameter (0x1)
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; OBJ: ]
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; OBJ: VarName: c
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; OBJ: }
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; OBJ: DefRangeFramePointerRelSym {
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; OBJ: Offset: 16
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; OBJ: }
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; OBJ-LABEL: ProcEnd {
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; OBJ: }
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; ModuleID = 't.cpp'
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source_filename = "t.cpp"
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i386-pc-windows-msvc19.10.24728"
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%struct.NonTrivial = type { i32 }
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; Function Attrs: nounwind
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define void @f(<{ %struct.NonTrivial, i32, i32, i32 }>* inalloca(<{ %struct.NonTrivial, i32, i32, i32 }>)) local_unnamed_addr #0 !dbg !7 {
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entry:
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%a = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 0
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%b = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 1
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call void @llvm.dbg.declare(metadata i32* %b, metadata !22, metadata !24), !dbg !26
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call void @llvm.dbg.declare(metadata %struct.NonTrivial* %a, metadata !23, metadata !24), !dbg !27
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%1 = load i32, i32* %b, align 4, !dbg !28, !tbaa !30
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%tobool = icmp eq i32 %1, 0, !dbg !28
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br i1 %tobool, label %if.else, label %if.then, !dbg !34
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if.then: ; preds = %entry
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%c = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 3
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call void @llvm.dbg.declare(metadata i32* %c, metadata !20, metadata !24), !dbg !25
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%2 = load i32, i32* %c, align 4, !dbg !35, !tbaa !30
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tail call void @g(i32 %2) #4, !dbg !37
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br label %if.end, !dbg !38
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if.else: ; preds = %entry
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%x = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 0, i32 0, !dbg !39
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%3 = load i32, i32* %x, align 4, !dbg !39, !tbaa !41
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tail call void @h(i32 %3) #4, !dbg !43
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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tail call x86_thiscallcc void @"\01??1NonTrivial@@QAE@XZ"(%struct.NonTrivial* nonnull %a) #4, !dbg !44
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ret void, !dbg !44
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @g(i32) local_unnamed_addr
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declare void @h(i32) local_unnamed_addr
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; Function Attrs: nounwind
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declare x86_thiscallcc void @"\01??1NonTrivial@@QAE@XZ"(%struct.NonTrivial*) unnamed_addr #3
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone speculatable }
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attributes #3 = { nounwind }
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attributes #4 = { nounwind }
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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_C_plus_plus, file: !1, producer: "clang version 5.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "e41e3fda2a91b52e121ed6c29a209eae")
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!2 = !{}
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!3 = !{i32 1, !"NumRegisterParameters", i32 0}
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!4 = !{i32 2, !"CodeView", i32 1}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!6 = !{!"clang version 5.0.0 "}
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!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !19)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10, !13, !13, !13}
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!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "NonTrivial", file: !1, line: 1, size: 32, elements: !11, identifier: ".?AUNonTrivial@@")
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!11 = !{!12, !14, !18}
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!12 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !10, file: !1, line: 4, baseType: !13, size: 32)
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!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!14 = !DISubprogram(name: "NonTrivial", scope: !10, file: !1, line: 2, type: !15, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true)
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!15 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !16)
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!16 = !{null, !17}
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!17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer)
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!18 = !DISubprogram(name: "~NonTrivial", scope: !10, file: !1, line: 3, type: !15, isLocal: false, isDefinition: false, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true)
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!19 = !{!20, !21, !22, !23}
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!20 = !DILocalVariable(name: "c", arg: 4, scope: !7, file: !1, line: 8, type: !13)
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!21 = !DILocalVariable(name: "unused", arg: 3, scope: !7, file: !1, line: 8, type: !13)
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!22 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !1, line: 8, type: !13)
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!23 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 8, type: !10)
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!24 = !DIExpression()
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!25 = !DILocation(line: 8, column: 56, scope: !7)
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!26 = !DILocation(line: 8, column: 37, scope: !7)
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!27 = !DILocation(line: 8, column: 30, scope: !7)
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!28 = !DILocation(line: 9, column: 7, scope: !29)
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!29 = distinct !DILexicalBlock(scope: !7, file: !1, line: 9, column: 7)
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!30 = !{!31, !31, i64 0}
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!31 = !{!"int", !32, i64 0}
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!32 = !{!"omnipotent char", !33, i64 0}
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!33 = !{!"Simple C++ TBAA"}
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!34 = !DILocation(line: 9, column: 7, scope: !7)
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!35 = !DILocation(line: 10, column: 7, scope: !36)
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!36 = distinct !DILexicalBlock(scope: !29, file: !1, line: 9, column: 10)
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!37 = !DILocation(line: 10, column: 5, scope: !36)
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!38 = !DILocation(line: 11, column: 3, scope: !36)
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!39 = !DILocation(line: 12, column: 9, scope: !40)
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!40 = distinct !DILexicalBlock(scope: !29, file: !1, line: 11, column: 10)
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!41 = !{!42, !31, i64 0}
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!42 = !{!"?AUNonTrivial@@", !31, i64 0}
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!43 = !DILocation(line: 12, column: 5, scope: !40)
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!44 = !DILocation(line: 15, column: 1, scope: !7)
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