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