78 lines
3.1 KiB
LLVM
78 lines
3.1 KiB
LLVM
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; RUN: llc -filetype=asm %s -o - | FileCheck %s
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; Test large integral function arguments passed in multiple registers.
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;
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; Generated from (-Os):
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;
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; signed long long g;
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; void write(signed long long offset);
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; signed long long foo(signed long long offset) {
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; if (offset != g)
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; write(offset);
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; return offset;
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; }
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source_filename = "test.ii"
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target datalayout = "e-m:o-p:32:32-i64:64-a:0:32-n32-S128"
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target triple = "thumbv7k-apple-watchos2.0.0"
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@g = local_unnamed_addr global i64 0, align 8, !dbg !0
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; Function Attrs: optsize ssp
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define i64 @_Z3foox(i64 returned) local_unnamed_addr #0 !dbg !13 {
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tail call void @llvm.dbg.value(metadata i64 %0, metadata !17, metadata !DIExpression()), !dbg !18
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; CHECK: @DEBUG_VALUE: foo:offset <- [DW_OP_LLVM_fragment 0 32] $r5
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; CHECK: @DEBUG_VALUE: foo:offset <- [DW_OP_LLVM_fragment 32 32] $r4
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%2 = load i64, i64* @g, align 8, !dbg !19, !tbaa !21
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%3 = icmp eq i64 %2, %0, !dbg !19
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br i1 %3, label %5, label %4, !dbg !25
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; <label>:4: ; preds = %1
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tail call void @_Z5writex(i64 %0) #3, !dbg !26
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br label %5, !dbg !26
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; <label>:5: ; preds = %1, %4
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ret i64 %0, !dbg !27
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}
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; Function Attrs: optsize
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declare void @_Z5writex(i64) local_unnamed_addr #1
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { optsize ssp }
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attributes #1 = { optsize }
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attributes #2 = { nounwind readnone speculatable }
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attributes #3 = { optsize }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9, !10, !11}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "g", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 6.0.0 (trunk 312148) (llvm/trunk 312165)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "test.ii", directory: "/")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)
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!7 = !{i32 2, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{i32 1, !"min_enum_size", i32 4}
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!11 = !{i32 7, !"PIC Level", i32 2}
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!13 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foox", scope: !3, file: !3, line: 3, type: !14, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !16)
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!14 = !DISubroutineType(types: !15)
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!15 = !{!6, !6}
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!16 = !{!17}
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!17 = !DILocalVariable(name: "offset", arg: 1, scope: !13, file: !3, line: 3, type: !6)
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!18 = !DILocation(line: 3, scope: !13)
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!19 = !DILocation(line: 4, scope: !20)
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!20 = distinct !DILexicalBlock(scope: !13, file: !3, line: 4)
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!21 = !{!22, !22, i64 0}
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!22 = !{!"long long", !23, i64 0}
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!23 = !{!"omnipotent char", !24, i64 0}
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!24 = !{!"Simple C++ TBAA"}
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!25 = !DILocation(line: 4, scope: !13)
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!26 = !DILocation(line: 5, scope: !20)
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!27 = !DILocation(line: 6, scope: !13)
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