1; RUN: opt %s -O2 -S -o - | FileCheck %s 2; Verify that we emit the same intrinsic at most once. 3; rdar://problem/13056109 4; 5; CHECK: call void @llvm.dbg.value(metadata %struct.i14** %p 6; CHECK-NOT: call void @llvm.dbg.value(metadata %struct.i14** %p 7; CHECK-NEXT: call i32 @foo 8; CHECK: ret 9; 10; 11; typedef struct { 12; long i; 13; } i14; 14; 15; int foo(i14**); 16; 17; void init() { 18; i14* p = 0; 19; foo(&p); 20; p->i |= 4; 21; foo(&p); 22; } 23; 24; ModuleID = 'instcombine_intrinsics.c' 25target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 26target triple = "x86_64-apple-macosx10.9.0" 27 28%struct.i14 = type { i64 } 29 30; Function Attrs: nounwind ssp uwtable 31define void @init() #0 { 32 %p = alloca %struct.i14*, align 8 33 call void @llvm.dbg.declare(metadata %struct.i14** %p, metadata !11, metadata !{!"0x102"}), !dbg !18 34 store %struct.i14* null, %struct.i14** %p, align 8, !dbg !18 35 %1 = call i32 @foo(%struct.i14** %p), !dbg !19 36 %2 = load %struct.i14** %p, align 8, !dbg !20 37 %3 = getelementptr inbounds %struct.i14* %2, i32 0, i32 0, !dbg !20 38 %4 = load i64* %3, align 8, !dbg !20 39 %5 = or i64 %4, 4, !dbg !20 40 store i64 %5, i64* %3, align 8, !dbg !20 41 %6 = call i32 @foo(%struct.i14** %p), !dbg !21 42 ret void, !dbg !22 43} 44 45; Function Attrs: nounwind readnone 46declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 47 48declare i32 @foo(%struct.i14**) 49 50attributes #0 = { nounwind ssp uwtable } 51attributes #1 = { nounwind readnone } 52 53!llvm.dbg.cu = !{!0} 54!llvm.module.flags = !{!8, !9} 55!llvm.ident = !{!10} 56 57!0 = !{!"0x11\0012\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [instcombine_intrinsics.c] [DW_LANG_C99] 58!1 = !{!"instcombine_intrinsics.c", !""} 59!2 = !{} 60!3 = !{!4} 61!4 = !{!"0x2e\00init\00init\00\007\000\001\000\006\000\000\007", !1, !5, !6, null, void ()* @init, null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [init] 62!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [instcombine_intrinsics.c] 63!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 64!7 = !{null} 65!8 = !{i32 2, !"Dwarf Version", i32 2} 66!9 = !{i32 1, !"Debug Info Version", i32 2} 67!10 = !{!"clang version 3.5.0 "} 68!11 = !{!"0x100\00p\008\000", !4, !5, !12} ; [ DW_TAG_auto_variable ] [p] [line 8] 69!12 = !{!"0xf\00\000\0064\0064\000\000", null, null, !13} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from i14] 70!13 = !{!"0x16\00i14\003\000\000\000\000", !1, null, !14} ; [ DW_TAG_typedef ] [i14] [line 3, size 0, align 0, offset 0] [from ] 71!14 = !{!"0x13\00\001\0064\0064\000\000\000", !1, null, null, !15, null, null, null} ; [ DW_TAG_structure_type ] [line 1, size 64, align 64, offset 0] [def] [from ] 72!15 = !{!16} 73!16 = !{!"0xd\00i\002\0064\0064\000\000", !1, !14, !17} ; [ DW_TAG_member ] [i] [line 2, size 64, align 64, offset 0] [from long int] 74!17 = !{!"0x24\00long int\000\0064\0064\000\000\005", null, null} ; [ DW_TAG_base_type ] [long int] [line 0, size 64, align 64, offset 0, enc DW_ATE_signed] 75!18 = !MDLocation(line: 8, scope: !4) 76!19 = !MDLocation(line: 9, scope: !4) 77!20 = !MDLocation(line: 10, scope: !4) 78!21 = !MDLocation(line: 11, scope: !4) 79!22 = !MDLocation(line: 12, scope: !4) 80