1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2# RUN: llc -mcpu=corei7 -no-stack-coloring=false -run-pass=stack-coloring -o - %s | FileCheck %s
3
4# Difference between test_1 and test_2 is that there is a DBG_VALUE in test_1.
5# If transformation is debug invariant the resulting LEA instruction should be
6# the same (i.e. we should reuse the same stack slot).
7
8--- |
9  ; ModuleID = '<stdin>'
10  source_filename = "StackColoring-dbg-invariance.ll"
11  target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
12  target triple = "x86_64-apple-macosx10.8.0"
13
14  ; Function Attrs: argmemonly nofree nosync nounwind willreturn
15  declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #0
16
17  ; Function Attrs: argmemonly nofree nosync nounwind willreturn
18  declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #0
19
20  define i32 @test_1(i32 %in) #1 !dbg !5 {
21  entry:
22    %a1 = alloca [14 x i8*], align 8
23    %a4 = alloca [11 x i8*], align 8
24    call void @llvm.dbg.value(metadata [11 x i8*]* %a4, metadata !9, metadata !DIExpression()), !dbg !11
25    ret i32 0
26  }
27
28  define i32 @test_2(i32 %in) #1 !dbg !12 {
29  entry:
30    %a1 = alloca [14 x i8*], align 8
31    %a4 = alloca [11 x i8*], align 8
32    ret i32 0
33  }
34
35  ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
36  declare void @llvm.dbg.value(metadata, metadata, metadata) #2
37
38  attributes #0 = { argmemonly nofree nosync nounwind willreturn "target-cpu"="corei7" }
39  attributes #1 = { "target-cpu"="corei7" }
40
41  !llvm.dbg.cu = !{!0}
42  !llvm.debugify = !{!2, !3}
43  !llvm.module.flags = !{!4}
44
45  !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
46  !1 = !DIFile(filename: "StackColoring-dbg-invariance.ll", directory: "/")
47  !2 = !{i32 27}
48  !3 = !{i32 18}
49  !4 = !{i32 2, !"Debug Info Version", i32 3}
50  !5 = distinct !DISubprogram(name: "test_1", linkageName: "test_1", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
51  !6 = !DISubroutineType(types: !7)
52  !7 = !{}
53  !8 = !{!9}
54  !9 = !DILocalVariable(name: "4", scope: !5, file: !1, line: 4, type: !10)
55  !10 = !DIBasicType(name: "ty64", size: 64, encoding: DW_ATE_unsigned)
56  !11 = !DILocation(line: 4, column: 1, scope: !5)
57  !12 = distinct !DISubprogram(name: "test_2", linkageName: "test_2", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !8)
58
59...
60---
61name:            test_1
62alignment:       16
63tracksRegLiveness: true
64stack:
65  - { id: 0, name: a1, type: default, offset: 0, size: 112, alignment: 8,
66      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
67      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
68  - { id: 3, name: a4, type: default, offset: 0, size: 88, alignment: 8,
69      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
70      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
71body:             |
72  bb.0.entry:
73    liveins: $edi
74
75    ; CHECK-LABEL: name: test_1
76    ; CHECK: liveins: $edi
77    ; CHECK: DBG_VALUE %stack.0.a1, $noreg, !9, !DIExpression(), debug-location !11
78    ; CHECK: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
79    ; CHECK: [[LEA64r1:%[0-9]+]]:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
80    ; CHECK: RET 0
81    DBG_VALUE %stack.3.a4, $noreg, !9, !DIExpression(), debug-location !11
82    LIFETIME_START %stack.3.a4
83    LIFETIME_START %stack.0.a1
84    %0:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
85    LIFETIME_END %stack.0.a1
86    %1:gr64 = LEA64r %stack.3.a4, 1, $noreg, 0, $noreg
87    LIFETIME_END %stack.3.a4
88    RET 0
89...
90---
91name:            test_2
92alignment:       16
93tracksRegLiveness: true
94stack:
95  - { id: 0, name: a1, type: default, offset: 0, size: 112, alignment: 8,
96      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
97      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
98  - { id: 3, name: a4, type: default, offset: 0, size: 88, alignment: 8,
99      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
100      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
101body:             |
102  bb.0.entry:
103    liveins: $edi
104
105    ; CHECK-LABEL: name: test_2
106    ; CHECK: liveins: $edi
107    ; CHECK: [[LEA64r:%[0-9]+]]:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
108    ; CHECK: [[LEA64r1:%[0-9]+]]:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
109    ; CHECK: RET 0
110    LIFETIME_START %stack.3.a4
111    LIFETIME_START %stack.0.a1
112    %0:gr64 = LEA64r %stack.0.a1, 1, $noreg, 0, $noreg
113    LIFETIME_END %stack.0.a1
114    %1:gr64 = LEA64r %stack.3.a4, 1, $noreg, 0, $noreg
115    LIFETIME_END %stack.3.a4
116    RET 0
117...
118