| ; RUN: opt %s -O2 -S -o - | FileCheck %s |
| ; Verify that we emit the same intrinsic at most once. |
| ; rdar://problem/13056109 |
| ; |
| ; CHECK: call void @llvm.dbg.value(metadata ptr %p |
| ; CHECK-NOT: call void @llvm.dbg.value(metadata ptr %p |
| ; CHECK-NEXT: call i32 @foo |
| ; CHECK: ret |
| ; |
| ; |
| ; typedef struct { |
| ; long i; |
| ; } i14; |
| ; |
| ; int foo(ptr); |
| ; |
| ; void init() { |
| ; ptr p = 0; |
| ; foo(&p); |
| ; p->i |= 4; |
| ; foo(&p); |
| ; } |
| ; |
| ; ModuleID = 'instcombine_intrinsics.c' |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.9.0" |
| |
| %struct.i14 = type { i64 } |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @init() #0 !dbg !4 { |
| %p = alloca ptr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %p, metadata !11, metadata !DIExpression()), !dbg !18 |
| store ptr null, ptr %p, align 8, !dbg !18 |
| %1 = call i32 @foo(ptr %p), !dbg !19 |
| %2 = load ptr, ptr %p, align 8, !dbg !20 |
| %3 = load i64, ptr %2, align 8, !dbg !20 |
| %4 = or i64 %3, 4, !dbg !20 |
| store i64 %4, ptr %2, align 8, !dbg !20 |
| %5 = call i32 @foo(ptr %p), !dbg !21 |
| ret void, !dbg !22 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| declare i32 @foo(ptr) |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!8, !9} |
| !llvm.ident = !{!10} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "instcombine_intrinsics.c", directory: "") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "init", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !6, retainedNodes: !2) |
| !5 = !DIFile(filename: "instcombine_intrinsics.c", directory: "") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null} |
| !8 = !{i32 2, !"Dwarf Version", i32 2} |
| !9 = !{i32 1, !"Debug Info Version", i32 3} |
| !10 = !{!"clang version 3.5.0 "} |
| !11 = !DILocalVariable(name: "p", line: 8, scope: !4, file: !5, type: !12) |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !13) |
| !13 = !DIDerivedType(tag: DW_TAG_typedef, name: "i14", line: 3, file: !1, baseType: !14) |
| !14 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 64, align: 64, file: !1, elements: !15) |
| !15 = !{!16} |
| !16 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 2, size: 64, align: 64, file: !1, scope: !14, baseType: !17) |
| !17 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed) |
| !18 = !DILocation(line: 8, scope: !4) |
| !19 = !DILocation(line: 9, scope: !4) |
| !20 = !DILocation(line: 10, scope: !4) |
| !21 = !DILocation(line: 11, scope: !4) |
| !22 = !DILocation(line: 12, scope: !4) |