1# RUN: llc -start-before=prologepilog -stop-after=livedebugvalues -mattr=+sve -o - %s | FileCheck %s 2# 3# FIXME: re-enable this run line when InstrRef LiveDebugValues is able to 4# rely on the target spill/restore inst recognisers. 5# run: llc -start-before=prologepilog -stop-after=livedebugvalues -experimental-debug-variable-locations -mattr=+sve -o - %s | FileCheck %s 6# 7# Test that the LiveDebugValues pass can correctly handle the address 8# of the SVE spill (at a scalable address location) which is expressed 9# with a complex DIExpression. 10# 11# CHECK: $z2 = ORR_ZZZ killed $z1, $z1 12# CHECK: $z1 = ORR_ZZZ killed $z0, $z0 13# CHECK-DAG: ST1W_IMM renamable $z1, killed renamable $p{{[0-9]+}}, $fp, -[[#%u,OFFSET:]], debug-location !{{[0-9]+}} :: (store unknown-size into %stack.0, align 16) 14# CHECK-DAG: DBG_VALUE $fp, 0, !{{[0-9]+}}, !DIExpression(DW_OP_constu, [[#mul(OFFSET,8)]], DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_minus), 15# 16# TODO: When LiveDebugValues pass supports reloads for AArch64, it should 17# correctly recognize debug-value !27 is in $z1 after the following reload: 18# 19# CHECK: renamable $z1 = LD1W_IMM renamable $p0, $fp, -[[#OFFSET]], debug-location !34 :: (load unknown-size from %stack.0, align 16) 20# CHECK-DAG: ST1W_IMM killed renamable $z3, killed renamable $p0, $fp, -[[#OFFSET]] :: (store unknown-size into %stack.0, align 16) 21# CHECK-DAG: DBG_VALUE $noreg, $noreg, !27, !DIExpression(), debug-location !30 22 23--- | 24 ; ModuleID = 't.c' 25 source_filename = "t.c" 26 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 27 target triple = "aarch64-unknown-linux-gnu" 28 29 ; Function Attrs: nounwind 30 define dso_local <vscale x 8 x i32> @foo(<vscale x 4 x i32> %z0, <vscale x 4 x i32> %z1, i32 %c) local_unnamed_addr #0 !dbg !11 { 31 entry: 32 call void @llvm.dbg.value(metadata <vscale x 4 x i32> %z0, metadata !27, metadata !DIExpression()), !dbg !30 33 call void @llvm.dbg.value(metadata <vscale x 4 x i32> %z1, metadata !28, metadata !DIExpression()), !dbg !30 34 call void @llvm.dbg.value(metadata i32 %c, metadata !29, metadata !DIExpression()), !dbg !30 35 %tobool.not = icmp eq i32 %c, 0, !dbg !31 36 br i1 %tobool.not, label %if.end, label %if.then, !dbg !33 37 38 if.then: ; preds = %entry 39 %call = call <vscale x 8 x i32> @bar(<vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0, <vscale x 4 x i32> %z0) #0, !dbg !34 40 br label %return, !dbg !35 41 42 if.end: ; preds = %entry 43 %0 = call <vscale x 8 x i32> @llvm.aarch64.sve.tuple.create2.nxv8i32.nxv4i32(<vscale x 4 x i32> %z1, <vscale x 4 x i32> %z0), !dbg !36 44 br label %return, !dbg !37 45 46 return: ; preds = %if.end, %if.then 47 %retval.0 = phi <vscale x 8 x i32> [ %call, %if.then ], [ %0, %if.end ], !dbg !30 48 ret <vscale x 8 x i32> %retval.0, !dbg !38 49 } 50 51 declare !dbg !39 dso_local <vscale x 8 x i32> @bar(<vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>, <vscale x 4 x i32>) local_unnamed_addr 52 53 ; Function Attrs: nounwind readonly 54 declare <vscale x 8 x i32> @llvm.aarch64.sve.tuple.create2.nxv8i32.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>) 55 56 ; Function Attrs: nounwind readnone speculatable willreturn 57 declare void @llvm.dbg.value(metadata, metadata, metadata) #1 58 59 attributes #0 = { "frame-pointer"="non-leaf"} 60 attributes #1 = { readnone speculatable willreturn } 61 62 !llvm.dbg.cu = !{!0} 63 !llvm.module.flags = !{!3, !4, !5, !6, !7, !8, !9} 64 !llvm.ident = !{!10} 65 66 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0 (https://github.com/llvm/llvm-project.git b19275ba870a06c5ef0428af6264ffd28c7cde9e)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 67 !1 = !DIFile(filename: "t.c", directory: "/tmp/") 68 !2 = !{} 69 !3 = !{i32 7, !"Dwarf Version", i32 4} 70 !4 = !{i32 2, !"Debug Info Version", i32 3} 71 !5 = !{i32 1, !"wchar_size", i32 4} 72 !6 = !{i32 8, !"branch-target-enforcement", i32 0} 73 !7 = !{i32 8, !"sign-return-address", i32 0} 74 !8 = !{i32 8, !"sign-return-address-all", i32 0} 75 !9 = !{i32 8, !"sign-return-address-with-bkey", i32 0} 76 !10 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git b19275ba870a06c5ef0428af6264ffd28c7cde9e)"} 77 !11 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 6, type: !12, scopeLine: 6, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !26) 78 !12 = !DISubroutineType(types: !13) 79 !13 = !{!14, !21, !21, !18} 80 !14 = !DIDerivedType(tag: DW_TAG_typedef, name: "svint32x2_t", file: !15, line: 59, baseType: !16) 81 !15 = !DIFile(filename: "lib/clang/12.0.0/include/arm_sve.h", directory: "/tmp") 82 !16 = !DIDerivedType(tag: DW_TAG_typedef, name: "__clang_svint32x2_t", file: !1, baseType: !17) 83 !17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, flags: DIFlagVector, elements: !19) 84 !18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 85 !19 = !{!20} 86 !20 = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 4, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus)) 87 !21 = !DIDerivedType(tag: DW_TAG_typedef, name: "svint32_t", file: !15, line: 34, baseType: !22) 88 !22 = !DIDerivedType(tag: DW_TAG_typedef, name: "__SVInt32_t", file: !1, baseType: !23) 89 !23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, flags: DIFlagVector, elements: !24) 90 !24 = !{!25} 91 !25 = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 2, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus)) 92 !26 = !{!27, !28, !29} 93 !27 = !DILocalVariable(name: "z0", arg: 1, scope: !11, file: !1, line: 6, type: !21) 94 !28 = !DILocalVariable(name: "z1", arg: 2, scope: !11, file: !1, line: 6, type: !21) 95 !29 = !DILocalVariable(name: "c", arg: 3, scope: !11, file: !1, line: 6, type: !18) 96 !30 = !DILocation(line: 0, scope: !11) 97 !31 = !DILocation(line: 7, column: 7, scope: !32) 98 !32 = distinct !DILexicalBlock(scope: !11, file: !1, line: 7, column: 7) 99 !33 = !DILocation(line: 7, column: 7, scope: !11) 100 !34 = !DILocation(line: 8, column: 12, scope: !32) 101 !35 = !DILocation(line: 8, column: 5, scope: !32) 102 !36 = !DILocation(line: 9, column: 10, scope: !11) 103 !37 = !DILocation(line: 9, column: 3, scope: !11) 104 !38 = !DILocation(line: 10, column: 1, scope: !11) 105 !39 = !DISubprogram(name: "bar", scope: !1, file: !1, line: 3, type: !40, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) 106 !40 = !DISubroutineType(types: !41) 107 !41 = !{!17, !23, !23, !23, !23, !23, !23, !23, !23, !23} 108 109... 110--- 111name: foo 112alignment: 4 113tracksRegLiveness: true 114liveins: 115 - { reg: '$z0' } 116 - { reg: '$z1' } 117 - { reg: '$w0' } 118frameInfo: 119 maxAlignment: 16 120 adjustsStack: true 121 hasCalls: true 122 maxCallFrameSize: 0 123 savePoint: '%bb.1' 124 restorePoint: '%bb.1' 125stack: 126 - { id: 0, size: 16, alignment: 16, stack-id: scalable-vector } 127machineFunctionInfo: {} 128body: | 129 bb.0.entry: 130 successors: %bb.2(0x30000000), %bb.1(0x50000000) 131 liveins: $w0, $z0, $z1 132 133 DBG_VALUE $z0, $noreg, !27, !DIExpression(), debug-location !30 134 DBG_VALUE $z1, $noreg, !28, !DIExpression(), debug-location !30 135 DBG_VALUE $w0, $noreg, !29, !DIExpression(), debug-location !30 136 renamable $z2 = COPY $z1 137 renamable $z1 = COPY $z0 138 DBG_VALUE $w0, $noreg, !29, !DIExpression(), debug-location !30 139 DBG_VALUE $z2, $noreg, !28, !DIExpression(), debug-location !30 140 DBG_VALUE $z1, $noreg, !27, !DIExpression(), debug-location !30 141 CBZW killed renamable $w0, %bb.2, debug-location !33 142 B %bb.1, debug-location !33 143 144 bb.1.if.then: 145 liveins: $z1 146 147 ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp, debug-location !34 148 renamable $p0 = PTRUE_S 31, implicit $vg, debug-location !34 149 $x0 = ADDXri %stack.0, 0, 0, debug-location !34 150 ST1W_IMM renamable $z1, killed renamable $p0, %stack.0, 0, debug-location !34 :: (store unknown-size into %stack.0, align 16) 151 $z0 = COPY renamable $z1, debug-location !34 152 $z2 = COPY renamable $z1, debug-location !34 153 $z3 = COPY renamable $z1, debug-location !34 154 $z4 = COPY renamable $z1, debug-location !34 155 $z5 = COPY renamable $z1, debug-location !34 156 $z6 = COPY renamable $z1, debug-location !34 157 $z7 = COPY renamable $z1, debug-location !34 158 BL @bar, csr_aarch64_sve_aapcs, implicit-def dead $lr, implicit $sp, implicit $z0, implicit $z1, implicit $z2, implicit $z3, implicit $z4, implicit $z5, implicit $z6, implicit $z7, implicit $x0, implicit-def $sp, implicit-def $z0, implicit-def $z1, debug-location !34 159 ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp, debug-location !34 160 renamable $p0 = PTRUE_S 31, implicit $vg, debug-location !34 161 $z3 = IMPLICIT_DEF 162 renamable $z1 = LD1W_IMM renamable $p0, %stack.0, 0, debug-location !34 :: (load unknown-size from %stack.0, align 16) 163 ST1W_IMM renamable $z3, killed renamable $p0, %stack.0, 0 :: (store unknown-size into %stack.0, align 16) 164 renamable $z2 = COPY $z0, debug-location !34 165 B %bb.3, debug-location !35 166 167 bb.2.if.end: 168 liveins: $z1, $z2 169 170 171 bb.3.return: 172 liveins: $z1, $z2 173 174 $z0 = COPY killed renamable $z2, debug-location !38 175 RET_ReallyLR implicit $z0, implicit $z1, debug-location !38 176 177... 178