75 lines
3.1 KiB
LLVM
75 lines
3.1 KiB
LLVM
; RUN: llc -march=hexagon < %s | FileCheck %s
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; Verify store/load for -g prologue
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; CHECK: allocframe
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; CHECK: memw([[MEM:.*]]) = r{{[0-9]+}}
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; CHECK: r{{[0-9]+}} = memw([[MEM]])
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; Function Attrs: nounwind
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define i32 @f0(i32 %a0) #0 !dbg !5 {
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b0:
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%v0 = alloca i32, align 4
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%v1 = alloca i32, align 4
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%v2 = alloca i32, align 4
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store i32 %a0, i32* %v1, align 4
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call void @llvm.dbg.declare(metadata i32* %v1, metadata !9, metadata !DIExpression()), !dbg !10
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call void @llvm.dbg.declare(metadata i32* %v2, metadata !11, metadata !DIExpression()), !dbg !12
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%v3 = load i32, i32* %v1, align 4, !dbg !13
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%v4 = icmp sgt i32 %v3, 1, !dbg !15
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br i1 %v4, label %b1, label %b2, !dbg !16
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b1: ; preds = %b0
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%v5 = load i32, i32* %v1, align 4, !dbg !17
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%v6 = load i32, i32* %v1, align 4, !dbg !18
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%v7 = sub nsw i32 %v6, 1, !dbg !19
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%v8 = call i32 @f0(i32 %v7), !dbg !20
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%v9 = mul nsw i32 %v5, %v8, !dbg !21
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store i32 %v9, i32* %v0, align 4, !dbg !22
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br label %b3, !dbg !22
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b2: ; preds = %b0
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%v10 = load i32, i32* %v1, align 4, !dbg !23
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store i32 %v10, i32* %v0, align 4, !dbg !24
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br label %b3, !dbg !24
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b3: ; preds = %b2, %b1
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%v11 = load i32, i32* %v0, align 4, !dbg !25
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ret i32 %v11, !dbg !25
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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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attributes #0 = { nounwind "target-cpu"="hexagonv55" }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "Clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "/tmp/test.c", directory: "/tmp")
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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 = distinct !DISubprogram(name: "factorial", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !8}
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!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !DILocalVariable(name: "value", arg: 1, scope: !5, file: !1, line: 1, type: !8)
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!10 = !DILocation(line: 1, column: 20, scope: !5)
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!11 = !DILocalVariable(name: "local_var", scope: !5, file: !1, line: 2, type: !8)
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!12 = !DILocation(line: 2, column: 7, scope: !5)
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!13 = !DILocation(line: 3, column: 7, scope: !14)
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!14 = distinct !DILexicalBlock(scope: !5, file: !1, line: 3, column: 7)
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!15 = !DILocation(line: 3, column: 13, scope: !14)
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!16 = !DILocation(line: 3, column: 7, scope: !5)
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!17 = !DILocation(line: 4, column: 12, scope: !14)
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!18 = !DILocation(line: 4, column: 28, scope: !14)
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!19 = !DILocation(line: 4, column: 33, scope: !14)
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!20 = !DILocation(line: 4, column: 18, scope: !14)
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!21 = !DILocation(line: 4, column: 17, scope: !14)
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!22 = !DILocation(line: 4, column: 5, scope: !14)
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!23 = !DILocation(line: 5, column: 15, scope: !14)
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!24 = !DILocation(line: 5, column: 8, scope: !14)
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!25 = !DILocation(line: 6, column: 1, scope: !5)
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