| ; RUN: opt -S -globalopt < %s | FileCheck %s |
| source_filename = "test.c" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.12.0" |
| |
| %struct.mystruct = type { i32, i64 } |
| ; Generated at -Os from: |
| ; |
| ; static struct { int a; char b; } array[2]; |
| ; void __attribute__((nodebug)) foo(int in) { array[0].a = in; } |
| ; void __attribute__((nodebug)) bar(int in) { array[1].a = in; } |
| ; int main(int argc, char **argv) |
| ; { |
| ; foo(argv[0][1]); |
| ; bar(argv[0][1]); |
| ; return array[0].a + array[1].a; |
| ; } |
| |
| %struct.anon = type { i32, i8 } |
| |
| ; This array is first split into two struct, which are then split into their |
| ; elements, of which only .a survives. |
| @array = internal global [2 x %struct.anon] zeroinitializer, align 16, !dbg !0 |
| ; CHECK: @array.0.0 = internal unnamed_addr global i32 0, align 16, !dbg ![[EL0:.*]] |
| ; CHECK: @array.1.0 = internal unnamed_addr global i32 0, align 8, !dbg ![[EL1:.*]] |
| ; |
| ; CHECK: ![[EL0]] = !DIGlobalVariableExpression(var: ![[VAR:.*]], expr: !DIExpression(DW_OP_LLVM_fragment, 0, 32)) |
| ; CHECK: ![[VAR]] = distinct !DIGlobalVariable(name: "array" |
| ; CHECK: ![[EL1]] = !DIGlobalVariableExpression(var: ![[VAR]], expr: !DIExpression(DW_OP_LLVM_fragment, 64, 32)) |
| |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define void @foo(i32 %in) #0 { |
| entry: |
| store i32 %in, i32* getelementptr inbounds ([2 x %struct.anon], [2 x %struct.anon]* @array, i64 0, i64 0, i32 0), align 16, !tbaa !20 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define void @bar(i32 %in) #0 { |
| entry: |
| store i32 %in, i32* getelementptr inbounds ([2 x %struct.anon], [2 x %struct.anon]* @array, i64 0, i64 1, i32 0), align 8, !tbaa !20 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define i32 @main(i32 %argc, i8** %argv) #0 !dbg !25 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %argc, metadata !31, metadata !33), !dbg !34 |
| call void @llvm.dbg.value(metadata i8** %argv, metadata !32, metadata !33), !dbg !35 |
| %0 = load i8*, i8** %argv, align 8, !dbg !36, !tbaa !37 |
| %arrayidx1 = getelementptr inbounds i8, i8* %0, i64 1, !dbg !36 |
| %1 = load i8, i8* %arrayidx1, align 1, !dbg !36, !tbaa !39 |
| %conv = sext i8 %1 to i32, !dbg !36 |
| call void @foo(i32 %conv) #2, !dbg !40 |
| %2 = load i8*, i8** %argv, align 8, !dbg !41, !tbaa !37 |
| %arrayidx3 = getelementptr inbounds i8, i8* %2, i64 1, !dbg !41 |
| %3 = load i8, i8* %arrayidx3, align 1, !dbg !41, !tbaa !39 |
| %conv4 = sext i8 %3 to i32, !dbg !41 |
| call void @bar(i32 %conv4) #2, !dbg !42 |
| %4 = load i32, i32* getelementptr inbounds ([2 x %struct.anon], [2 x %struct.anon]* @array, i64 0, i64 0, i32 0), align 16, !dbg !43, !tbaa !20 |
| %5 = load i32, i32* getelementptr inbounds ([2 x %struct.anon], [2 x %struct.anon]* @array, i64 0, i64 1, i32 0), align 8, !dbg !44, !tbaa !20 |
| %add = add nsw i32 %4, %5, !dbg !45 |
| ret i32 %add, !dbg !46 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind optsize ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone speculatable } |
| attributes #2 = { optsize } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!15, !16, !17, !18} |
| !llvm.ident = !{!19} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "array", scope: !2, file: !3, line: 1, type: !6, isLocal: true, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 6.0.0 (trunk 309960) (llvm/trunk 309961)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "test.c", directory: "/") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, size: 128, elements: !13) |
| !7 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !3, line: 1, size: 64, elements: !8) |
| !8 = !{!9, !11} |
| !9 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !7, file: !3, line: 1, baseType: !10, size: 32) |
| !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !11 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !7, file: !3, line: 1, baseType: !12, size: 8, offset: 32) |
| !12 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char) |
| !13 = !{!14} |
| !14 = !DISubrange(count: 2) |
| !15 = !{i32 2, !"Dwarf Version", i32 4} |
| !16 = !{i32 2, !"Debug Info Version", i32 3} |
| !17 = !{i32 1, !"wchar_size", i32 4} |
| !18 = !{i32 7, !"PIC Level", i32 2} |
| !19 = !{!"clang version 6.0.0 (trunk 309960) (llvm/trunk 309961)"} |
| !20 = !{!21, !22, i64 0} |
| !21 = !{!"", !22, i64 0, !23, i64 4} |
| !22 = !{!"int", !23, i64 0} |
| !23 = !{!"omnipotent char", !24, i64 0} |
| !24 = !{!"Simple C/C++ TBAA"} |
| !25 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 4, type: !26, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !30) |
| !26 = !DISubroutineType(types: !27) |
| !27 = !{!10, !10, !28} |
| !28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 64) |
| !29 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) |
| !30 = !{!31, !32} |
| !31 = !DILocalVariable(name: "argc", arg: 1, scope: !25, file: !3, line: 4, type: !10) |
| !32 = !DILocalVariable(name: "argv", arg: 2, scope: !25, file: !3, line: 4, type: !28) |
| !33 = !DIExpression() |
| !34 = !DILocation(line: 4, column: 14, scope: !25) |
| !35 = !DILocation(line: 4, column: 27, scope: !25) |
| !36 = !DILocation(line: 6, column: 7, scope: !25) |
| !37 = !{!38, !38, i64 0} |
| !38 = !{!"any pointer", !23, i64 0} |
| !39 = !{!23, !23, i64 0} |
| !40 = !DILocation(line: 6, column: 3, scope: !25) |
| !41 = !DILocation(line: 7, column: 7, scope: !25) |
| !42 = !DILocation(line: 7, column: 3, scope: !25) |
| !43 = !DILocation(line: 8, column: 19, scope: !25) |
| !44 = !DILocation(line: 8, column: 32, scope: !25) |
| !45 = !DILocation(line: 8, column: 21, scope: !25) |
| !46 = !DILocation(line: 8, column: 3, scope: !25) |