1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %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-apple-macosx10.7.0"
; int depth(double *A, int m) {
; double y0 = 0; double y1 = 1;
; for (int i=0; i < m; i++) {
; y0 = A[4];
; y1 = A[5];
; }
; A[8] = y0; A[8+1] = y1;
; }
;CHECK: @depth
;CHECK: getelementptr inbounds {{.*}}, !dbg ![[LOC:[0-9]+]]
;CHECK: bitcast double* {{.*}}, !dbg ![[LOC]]
;CHECK: load <2 x double>, <2 x double>* {{.*}}, !dbg ![[LOC]]
;CHECK: store <2 x double> {{.*}}, !dbg ![[LOC2:[0-9]+]]
;CHECK: ret
;CHECK: ![[LOC]] = !MDLocation(line: 4, scope:
;CHECK: ![[LOC2]] = !MDLocation(line: 7, scope:
define i32 @depth(double* nocapture %A, i32 %m) #0 {
entry:
tail call void @llvm.dbg.value(metadata double* %A, i64 0, metadata !12, metadata !MDExpression()), !dbg !19
tail call void @llvm.dbg.value(metadata i32 %m, i64 0, metadata !13, metadata !MDExpression()), !dbg !19
tail call void @llvm.dbg.value(metadata i32 00, i64 0, metadata !14, metadata !MDExpression()), !dbg !21
tail call void @llvm.dbg.value(metadata i32 02, i64 0, metadata !15, metadata !MDExpression()), !dbg !21
tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !16, metadata !MDExpression()), !dbg !23
%cmp8 = icmp sgt i32 %m, 0, !dbg !23
br i1 %cmp8, label %for.body.lr.ph, label %for.end, !dbg !23
for.body.lr.ph: ; preds = %entry
%arrayidx = getelementptr inbounds double, double* %A, i64 4, !dbg !24
%0 = load double, double* %arrayidx, align 8, !dbg !24
%arrayidx1 = getelementptr inbounds double, double* %A, i64 5, !dbg !29
%1 = load double, double* %arrayidx1, align 8, !dbg !29
br label %for.end, !dbg !23
for.end: ; preds = %for.body.lr.ph, %entry
%y1.0.lcssa = phi double [ %1, %for.body.lr.ph ], [ 1.000000e+00, %entry ]
%y0.0.lcssa = phi double [ %0, %for.body.lr.ph ], [ 0.000000e+00, %entry ]
%arrayidx2 = getelementptr inbounds double, double* %A, i64 8, !dbg !30
store double %y0.0.lcssa, double* %arrayidx2, align 8, !dbg !30
%arrayidx3 = getelementptr inbounds double, double* %A, i64 9, !dbg !30
store double %y1.0.lcssa, double* %arrayidx3, align 8, !dbg !30
ret i32 undef, !dbg !31
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "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 = !{!18, !32}
!0 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.4 (trunk 187335) (llvm/trunk 187335:187340M)", isOptimized: true, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !MDFile(filename: "file.c", directory: "/Users/nadav")
!2 = !{i32 0}
!3 = !{!4}
!4 = !MDSubprogram(name: "depth", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (double*, i32)* @depth, variables: !11)
!5 = !MDFile(filename: "file.c", directory: "/Users/nadav")
!6 = !MDSubroutineType(types: !7)
!7 = !{!8, !9, !8}
!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !10)
!10 = !MDBasicType(tag: DW_TAG_base_type, name: "double", size: 64, align: 64, encoding: DW_ATE_float)
!11 = !{!12, !13, !14, !15, !16}
!12 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "A", line: 1, arg: 1, scope: !4, file: !5, type: !9)
!13 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "m", line: 1, arg: 2, scope: !4, file: !5, type: !8)
!14 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "y0", line: 2, scope: !4, file: !5, type: !10)
!15 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "y1", line: 2, scope: !4, file: !5, type: !10)
!16 = !MDLocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 3, scope: !17, file: !5, type: !8)
!17 = distinct !MDLexicalBlock(line: 3, column: 0, file: !1, scope: !4)
!18 = !{i32 2, !"Dwarf Version", i32 2}
!19 = !MDLocation(line: 1, scope: !4)
!20 = !{double 0.000000e+00}
!21 = !MDLocation(line: 2, scope: !4)
!22 = !{double 1.000000e+00}
!23 = !MDLocation(line: 3, scope: !17)
!24 = !MDLocation(line: 4, scope: !25)
!25 = distinct !MDLexicalBlock(line: 3, column: 0, file: !1, scope: !17)
!29 = !MDLocation(line: 5, scope: !25)
!30 = !MDLocation(line: 7, scope: !4)
!31 = !MDLocation(line: 8, scope: !4)
!32 = !{i32 1, !"Debug Info Version", i32 3}
|
