135 lines
6.3 KiB
LLVM
135 lines
6.3 KiB
LLVM
; RUN: opt -S -globalopt < %s | FileCheck %s
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source_filename = "struct.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.mystruct = type { x86_fp80, i32, [12 x i8] }
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; Generated from:
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;
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; static struct mystruct {
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; long double a;
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; int b;
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; } static_struct;
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; void __attribute__((nodebug)) foo(int in) { static_struct.a = in; }
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; void __attribute__((nodebug)) bar(int in) { static_struct.b = in; }
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; int main(int argc, char **argv)
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; {
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; foo(argv[0][1]);
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; bar(argv[0][1]);
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; return (static_struct.a + static_struct.b) > 0;
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; }
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;
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; using clang -O0 -g2 -S -emit-llvm
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@static_struct = internal global %struct.mystruct zeroinitializer, align 16, !dbg !0
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; CHECK: @static_struct.0 = internal unnamed_addr global x86_fp80 0xK00000000000000000000, align 16, !dbg ![[EL0:.*]]
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; CHECK: @static_struct.1 = internal unnamed_addr global i32 0, align 16, !dbg ![[EL1:.*]]
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; CHECK: ![[EL0]] = !DIGlobalVariableExpression(var: ![[VAR:.*]], expr: !DIExpression(DW_OP_LLVM_fragment, 0, 128))
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; CHECK: ![[VAR]] = distinct !DIGlobalVariable(name: "static_struct"
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; CHECK: ![[EL1]] = !DIGlobalVariableExpression(var: ![[VAR]], expr: !DIExpression(DW_OP_LLVM_fragment, 128, 32))
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; Function Attrs: noinline nounwind optnone uwtable
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define void @foo(i32 %in) #0 {
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entry:
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%in.addr = alloca i32, align 4
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store i32 %in, i32* %in.addr, align 4
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%0 = load i32, i32* %in.addr, align 4
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%conv = sitofp i32 %0 to x86_fp80
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store x86_fp80 %conv, x86_fp80* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 0), align 16
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ret void
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}
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; Function Attrs: noinline nounwind optnone uwtable
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define void @bar(i32 %in) #0 {
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entry:
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%in.addr = alloca i32, align 4
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store i32 %in, i32* %in.addr, align 4
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%0 = load i32, i32* %in.addr, align 4
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store i32 %0, i32* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 1), align 16
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ret void
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}
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; Function Attrs: noinline nounwind optnone uwtable
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define i32 @main(i32 %argc, i8** %argv) #0 !dbg !16 {
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entry:
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%retval = alloca i32, align 4
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%argc.addr = alloca i32, align 4
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%argv.addr = alloca i8**, align 8
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store i32 0, i32* %retval, align 4
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store i32 %argc, i32* %argc.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !22, metadata !DIExpression()), !dbg !23
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store i8** %argv, i8*** %argv.addr, align 8
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call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !24, metadata !DIExpression()), !dbg !25
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%0 = load i8**, i8*** %argv.addr, align 8, !dbg !26
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%arrayidx = getelementptr inbounds i8*, i8** %0, i64 0, !dbg !26
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%1 = load i8*, i8** %arrayidx, align 8, !dbg !26
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%arrayidx1 = getelementptr inbounds i8, i8* %1, i64 1, !dbg !26
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%2 = load i8, i8* %arrayidx1, align 1, !dbg !26
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%conv = sext i8 %2 to i32, !dbg !26
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call void @foo(i32 %conv), !dbg !27
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%3 = load i8**, i8*** %argv.addr, align 8, !dbg !28
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%arrayidx2 = getelementptr inbounds i8*, i8** %3, i64 0, !dbg !28
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%4 = load i8*, i8** %arrayidx2, align 8, !dbg !28
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%arrayidx3 = getelementptr inbounds i8, i8* %4, i64 1, !dbg !28
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%5 = load i8, i8* %arrayidx3, align 1, !dbg !28
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%conv4 = sext i8 %5 to i32, !dbg !28
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call void @bar(i32 %conv4), !dbg !29
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%6 = load x86_fp80, x86_fp80* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 0), align 16, !dbg !30
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%7 = load i32, i32* getelementptr inbounds (%struct.mystruct, %struct.mystruct* @static_struct, i32 0, i32 1), align 16, !dbg !31
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%conv5 = sitofp i32 %7 to x86_fp80, !dbg !32
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%add = fadd x86_fp80 %6, %conv5, !dbg !33
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%cmp = fcmp ogt x86_fp80 %add, 0xK00000000000000000000, !dbg !34
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%conv6 = zext i1 %cmp to i32, !dbg !34
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ret i32 %conv6, !dbg !35
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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 = { noinline nounwind optnone uwtable }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!12, !13, !14}
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!llvm.ident = !{!15}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "static_struct", scope: !2, file: !3, line: 4, type: !6, isLocal: true, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 7.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "struct.c", directory: "/")
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!4 = !{}
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!5 = !{!0}
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "mystruct", file: !3, line: 1, size: 256, elements: !7)
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!7 = !{!8, !10}
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!8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, file: !3, line: 2, baseType: !9, size: 128)
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!9 = !DIBasicType(name: "long double", size: 128, encoding: DW_ATE_float)
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!10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, file: !3, line: 3, baseType: !11, size: 32, offset: 128)
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !{i32 2, !"Dwarf Version", i32 4}
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!13 = !{i32 2, !"Debug Info Version", i32 3}
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!14 = !{i32 1, !"wchar_size", i32 4}
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!15 = !{!"clang version 7.0.0"}
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!16 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !17, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
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!17 = !DISubroutineType(types: !18)
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!18 = !{!11, !11, !19}
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!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
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!20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64)
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!21 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
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!22 = !DILocalVariable(name: "argc", arg: 1, scope: !16, file: !3, line: 7, type: !11)
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!23 = !DILocation(line: 7, column: 14, scope: !16)
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!24 = !DILocalVariable(name: "argv", arg: 2, scope: !16, file: !3, line: 7, type: !19)
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!25 = !DILocation(line: 7, column: 27, scope: !16)
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!26 = !DILocation(line: 9, column: 9, scope: !16)
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!27 = !DILocation(line: 9, column: 5, scope: !16)
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!28 = !DILocation(line: 10, column: 9, scope: !16)
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!29 = !DILocation(line: 10, column: 5, scope: !16)
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!30 = !DILocation(line: 11, column: 27, scope: !16)
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!31 = !DILocation(line: 11, column: 45, scope: !16)
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!32 = !DILocation(line: 11, column: 31, scope: !16)
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!33 = !DILocation(line: 11, column: 29, scope: !16)
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!34 = !DILocation(line: 11, column: 48, scope: !16)
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!35 = !DILocation(line: 11, column: 5, scope: !16)
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