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; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS1 %s
; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=2 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS2 %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; Check origin instrumentation of stores.
; Check that debug info for origin propagation code is set correctly.
; Function Attrs: nounwind
define void @Store(i32* nocapture %p, i32 %x) #0 {
entry:
tail call void @llvm.dbg.value(metadata !{i32* %p}, i64 0, metadata !11, metadata !{metadata !"0x102"}), !dbg !16
tail call void @llvm.dbg.value(metadata !{i32 %x}, i64 0, metadata !12, metadata !{metadata !"0x102"}), !dbg !16
store i32 %x, i32* %p, align 4, !dbg !17, !tbaa !18
ret void, !dbg !22
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
attributes #0 = { nounwind sanitize_memory "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!13, !14}
!llvm.ident = !{!15}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 (204220)\001\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/build0/../2.cc] [DW_LANG_C99]
!1 = metadata !{metadata !"../2.cc", metadata !"/tmp/build0"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x2e\00Store\00Store\00\001\000\001\000\006\00256\001\001", metadata !1, metadata !5, metadata !6, null, void (i32*, i32)* @Store, null, null, metadata !10} ; [ DW_TAG_subprogram ] [line 1] [def] [Store]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/build0/../2.cc]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{null, metadata !8, metadata !9}
!8 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
!9 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = metadata !{metadata !11, metadata !12}
!11 = metadata !{metadata !"0x101\00p\0016777217\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ] [p] [line 1]
!12 = metadata !{metadata !"0x101\00x\0033554433\000", metadata !4, metadata !5, metadata !9} ; [ DW_TAG_arg_variable ] [x] [line 1]
!13 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!14 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!15 = metadata !{metadata !"clang version 3.5.0 (204220)"}
!16 = metadata !{i32 1, i32 0, metadata !4, null}
!17 = metadata !{i32 2, i32 0, metadata !4, null}
!18 = metadata !{metadata !19, metadata !19, i64 0}
!19 = metadata !{metadata !"int", metadata !20, i64 0}
!20 = metadata !{metadata !"omnipotent char", metadata !21, i64 0}
!21 = metadata !{metadata !"Simple C/C++ TBAA"}
!22 = metadata !{i32 3, i32 0, metadata !4, null}
; CHECK: @Store
; CHECK: load {{.*}} @__msan_param_tls
; CHECK: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls
; CHECK: store {{.*}}!dbg ![[DBG:[01-9]+]]
; CHECK: icmp
; CHECK: br i1
; CHECK: <label>
; Origin tracking level 1: simply store the origin value
; CHECK-ORIGINS1: store i32 {{.*}}[[ORIGIN]],{{.*}}!dbg !{{.*}}[[DBG]]
; Origin tracking level 2: pass origin value through __msan_chain_origin and store the result.
; CHECK-ORIGINS2: [[ORIGIN2:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 {{.*}}[[ORIGIN]])
; CHECK-ORIGINS2: store i32 {{.*}}[[ORIGIN2]],{{.*}}!dbg !{{.*}}[[DBG]]
; CHECK: br label{{.*}}!dbg !{{.*}}[[DBG]]
; CHECK: <label>
; CHECK: store{{.*}}!dbg !{{.*}}[[DBG]]
; CHECK: ret void
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