1 # RUN: llc %s -run-pass x86-avoid-SFB -mtriple=x86_64-unknown-linux-gnu -o - | FileCheck %s
3 # This was generated from:
5 # using alpha = float __attribute__((ext_vector_type(4)));
7 # void bravo(alpha * __restrict__ p1, alpha * __restrict__ p2) {
8 # char *p3 = (char *)p1;
14 # Using the command line:
15 # clang -g -c 1.cpp -O2 -S -emit-llvm -fno-strict-aliasing --target=x86_64-unknown-unknown -o test.ll
16 # llc -stop-before=x86-avoid-SFB test.ll -o before.mir
18 # The IR has been modified to include a number of debug/meta instructions between the initial store and load.
19 # If the code treats debug/meta instructions as normal instructions, the separation between the store and load
20 # will be too great to enable the optimization.
23 ; ModuleID = 'test.ll'
24 source_filename = "1.cpp"
25 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
26 target triple = "x86_64-unknown-unknown"
28 ; Function Attrs: norecurse nounwind uwtable
29 define dso_local void @debug(ptr noalias nocapture %p1, ptr noalias nocapture %p2) local_unnamed_addr #0 !dbg !10 {
31 call void @llvm.dbg.value(metadata ptr %p1, metadata !21, metadata !DIExpression()), !dbg !25
32 call void @llvm.dbg.value(metadata ptr %p2, metadata !22, metadata !DIExpression()), !dbg !25
33 %0 = bitcast ptr %p1 to ptr, !dbg !26
34 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
35 store i8 0, ptr %0, align 1, !dbg !27
36 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
37 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
38 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
39 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
40 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
41 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
42 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
43 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
44 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
45 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
46 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
47 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
48 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
49 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
50 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
51 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
52 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
53 call void @llvm.dbg.value(metadata ptr %0, metadata !23, metadata !DIExpression()), !dbg !25
54 %1 = load <4 x float>, ptr %p1, align 16, !dbg !28
55 call void @llvm.dbg.value(metadata <4 x float> %1, metadata !24, metadata !DIExpression()), !dbg !25
56 store <4 x float> %1, ptr %p2, align 16, !dbg !29
60 ; Function Attrs: nounwind readnone speculatable
61 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
63 ; Function Attrs: nounwind
64 declare void @llvm.stackprotector(ptr, ptr) #2
66 attributes #0 = { norecurse nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
67 attributes #1 = { nounwind readnone speculatable }
68 attributes #2 = { nounwind }
71 !llvm.module.flags = !{!6, !7, !8}
74 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git 9afc4764dd24bd2f23c44e51ad33f8e58234a8b6)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
75 !1 = !DIFile(filename: "1.cpp", directory: "C:\5CUsers\5Cgbdawsoc\5CDocuments\5Cllvm\5Cbg40969")
78 !4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !5, size: 64)
79 !5 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
80 !6 = !{i32 2, !"Dwarf Version", i32 4}
81 !7 = !{i32 2, !"Debug Info Version", i32 3}
82 !8 = !{i32 1, !"wchar_size", i32 4}
83 !9 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git 9afc4764dd24bd2f23c44e51ad33f8e58234a8b6)"}
84 !10 = distinct !DISubprogram(name: "bravo", linkageName: "_Z5bravoPDv4_fS0_", scope: !1, file: !1, line: 4, type: !11, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !20)
85 !11 = !DISubroutineType(types: !12)
86 !12 = !{null, !13, !13}
87 !13 = !DIDerivedType(tag: DW_TAG_restrict_type, baseType: !14)
88 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !15, size: 64)
89 !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "alpha", file: !1, line: 2, baseType: !16)
90 !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !17, size: 128, flags: DIFlagVector, elements: !18)
91 !17 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
93 !19 = !DISubrange(count: 4)
94 !20 = !{!21, !22, !23, !24}
95 !21 = !DILocalVariable(name: "p1", arg: 1, scope: !10, file: !1, line: 4, type: !13)
96 !22 = !DILocalVariable(name: "p2", arg: 2, scope: !10, file: !1, line: 4, type: !13)
97 !23 = !DILocalVariable(name: "p3", scope: !10, file: !1, line: 5, type: !4)
98 !24 = !DILocalVariable(name: "t", scope: !10, file: !1, line: 7, type: !15)
99 !25 = !DILocation(line: 0, scope: !10)
100 !26 = !DILocation(line: 5, column: 14, scope: !10)
101 !27 = !DILocation(line: 6, column: 7, scope: !10)
102 !28 = !DILocation(line: 7, column: 13, scope: !10)
103 !29 = !DILocation(line: 8, column: 7, scope: !10)
104 !30 = !DILocation(line: 9, column: 1, scope: !10)
110 exposesReturnsTwice: false
112 regBankSelected: false
115 tracksRegLiveness: true
118 - { id: 0, class: gr64, preferred-register: '' }
119 - { id: 1, class: gr64, preferred-register: '' }
120 - { id: 2, class: vr128, preferred-register: '' }
122 - { reg: '$rdi', virtual-reg: '%0' }
123 - { reg: '$rsi', virtual-reg: '%1' }
125 isFrameAddressTaken: false
126 isReturnAddressTaken: false
135 maxCallFrameSize: 4294967295
136 cvBytesOfCalleeSavedRegisters: 0
137 hasOpaqueSPAdjustment: false
139 hasMustTailInVarArgFunc: false
146 machineFunctionInfo: {}
151 DBG_VALUE $rdi, $noreg, !21, !DIExpression(), debug-location !25
152 DBG_VALUE $rsi, $noreg, !22, !DIExpression(), debug-location !25
154 DBG_VALUE %1, $noreg, !22, !DIExpression(), debug-location !25
156 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
157 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
158 MOV8mi %0, 1, $noreg, 0, $noreg, 0, debug-location !27 :: (store (s8) into %ir.0)
159 CFI_INSTRUCTION offset $r13, -123
160 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
161 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
162 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
163 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
164 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
165 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
166 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
167 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
168 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
169 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
170 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
171 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
172 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
173 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
174 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
175 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
176 DBG_VALUE %0, $noreg, !21, !DIExpression(), debug-location !25
177 DBG_VALUE %0, $noreg, !23, !DIExpression(), debug-location !25
178 %2:vr128 = MOVAPSrm %0, 1, $noreg, 0, $noreg, debug-location !28 :: (load (s128) from %ir.p1)
179 DBG_VALUE %2, $noreg, !24, !DIExpression(), debug-location !25
180 MOVAPSmr %1, 1, $noreg, 0, $noreg, killed %2, debug-location !29 :: (store (s128) into %ir.p2)
181 RET 0, debug-location !30
183 ; CHECK-LABEL: name: debug
184 ; CHECK: %1:gr64 = COPY
185 ; CHECK: %0:gr64 = COPY
187 ; CHECK: %3:gr8 = MOV8rm
189 ; CHECK: %4:gr64 = MOV64rm
191 ; CHECK: %5:gr32 = MOV32rm
193 ; CHECK: %6:gr16 = MOV16rm
195 ; CHECK: %7:gr8 = MOV8rm