forked from OSchip/llvm-project
80 lines
3.2 KiB
LLVM
80 lines
3.2 KiB
LLVM
; RUN: opt %s -O2 -S -o - | FileCheck %s
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; Verify that we emit the same intrinsic at most once.
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; rdar://problem/13056109
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;
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; CHECK: call void @llvm.dbg.value(metadata %struct.i14** %p
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; CHECK-NOT: call void @llvm.dbg.value(metadata %struct.i14** %p
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; CHECK-NEXT: call i32 @foo
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; CHECK: ret
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;
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;
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; typedef struct {
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; long i;
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; } i14;
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;
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; int foo(i14**);
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;
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; void init() {
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; i14* p = 0;
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; foo(&p);
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; p->i |= 4;
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; foo(&p);
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; }
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;
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; ModuleID = 'instcombine_intrinsics.c'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.9.0"
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%struct.i14 = type { i64 }
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; Function Attrs: nounwind ssp uwtable
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define void @init() #0 {
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%p = alloca %struct.i14*, align 8
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call void @llvm.dbg.declare(metadata %struct.i14** %p, metadata !11, metadata !{!"0x102"}), !dbg !18
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store %struct.i14* null, %struct.i14** %p, align 8, !dbg !18
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%1 = call i32 @foo(%struct.i14** %p), !dbg !19
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%2 = load %struct.i14*, %struct.i14** %p, align 8, !dbg !20
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%3 = getelementptr inbounds %struct.i14, %struct.i14* %2, i32 0, i32 0, !dbg !20
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%4 = load i64, i64* %3, align 8, !dbg !20
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%5 = or i64 %4, 4, !dbg !20
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store i64 %5, i64* %3, align 8, !dbg !20
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%6 = call i32 @foo(%struct.i14** %p), !dbg !21
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ret void, !dbg !22
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare i32 @foo(%struct.i14**)
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attributes #0 = { nounwind ssp uwtable }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9}
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!llvm.ident = !{!10}
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!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]
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!1 = !{!"instcombine_intrinsics.c", !""}
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!2 = !{}
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!3 = !{!4}
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!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]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [instcombine_intrinsics.c]
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!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 ]
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!7 = !{null}
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!8 = !{i32 2, !"Dwarf Version", i32 2}
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!9 = !{i32 1, !"Debug Info Version", i32 2}
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!10 = !{!"clang version 3.5.0 "}
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!11 = !{!"0x100\00p\008\000", !4, !5, !12} ; [ DW_TAG_auto_variable ] [p] [line 8]
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!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]
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!13 = !{!"0x16\00i14\003\000\000\000\000", !1, null, !14} ; [ DW_TAG_typedef ] [i14] [line 3, size 0, align 0, offset 0] [from ]
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!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 ]
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!15 = !{!16}
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!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]
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!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]
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!18 = !MDLocation(line: 8, scope: !4)
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!19 = !MDLocation(line: 9, scope: !4)
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!20 = !MDLocation(line: 10, scope: !4)
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!21 = !MDLocation(line: 11, scope: !4)
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!22 = !MDLocation(line: 12, scope: !4)
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