175 lines
9.3 KiB
Plaintext
175 lines
9.3 KiB
Plaintext
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# RUN: llc -start-before=prologepilog -stop-after=livedebugvalues -mattr=+sve -o - %s | FileCheck %s
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# RUN: llc -start-before=prologepilog -stop-after=livedebugvalues -experimental-debug-variable-locations -mattr=+sve -o - %s | FileCheck %s
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#
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# Test that the LiveDebugValues pass can correctly handle the address
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# of the SVE spill (at a scalable address location) which is expressed
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# with a complex DIExpression.
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#
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# CHECK: $z2 = ORR_ZZZ killed $z1, $z1
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# CHECK: $z1 = ORR_ZZZ killed $z0, $z0
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# 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)
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# 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),
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#
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# TODO: When LiveDebugValues pass supports reloads for AArch64, it should
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# correctly recognize debug-value !27 is in $z1 after the following reload:
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#
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# CHECK: renamable $z1 = LD1W_IMM renamable $p0, $fp, -[[#OFFSET]], debug-location !34 :: (load unknown-size from %stack.0, align 16)
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# CHECK-DAG: ST1W_IMM killed renamable $z3, killed renamable $p0, $fp, -[[#OFFSET]] :: (store unknown-size into %stack.0, align 16)
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# CHECK-DAG: DBG_VALUE $noreg, $noreg, !27, !DIExpression(), debug-location !30
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--- |
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; ModuleID = 't.c'
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source_filename = "t.c"
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-unknown-linux-gnu"
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; Function Attrs: nounwind
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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 {
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entry:
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call void @llvm.dbg.value(metadata <vscale x 4 x i32> %z0, metadata !27, metadata !DIExpression()), !dbg !30
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call void @llvm.dbg.value(metadata <vscale x 4 x i32> %z1, metadata !28, metadata !DIExpression()), !dbg !30
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call void @llvm.dbg.value(metadata i32 %c, metadata !29, metadata !DIExpression()), !dbg !30
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%tobool.not = icmp eq i32 %c, 0, !dbg !31
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br i1 %tobool.not, label %if.end, label %if.then, !dbg !33
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if.then: ; preds = %entry
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%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
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br label %return, !dbg !35
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if.end: ; preds = %entry
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%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
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br label %return, !dbg !37
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return: ; preds = %if.end, %if.then
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%retval.0 = phi <vscale x 8 x i32> [ %call, %if.then ], [ %0, %if.end ], !dbg !30
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ret <vscale x 8 x i32> %retval.0, !dbg !38
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}
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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
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; Function Attrs: nounwind readonly
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declare <vscale x 8 x i32> @llvm.aarch64.sve.tuple.create2.nxv8i32.nxv4i32(<vscale x 4 x i32>, <vscale x 4 x i32>)
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { "frame-pointer"="non-leaf"}
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attributes #1 = { readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6, !7, !8, !9}
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!llvm.ident = !{!10}
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!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)
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!1 = !DIFile(filename: "t.c", directory: "/tmp/")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 1, !"branch-target-enforcement", i32 0}
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!7 = !{i32 1, !"sign-return-address", i32 0}
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!8 = !{i32 1, !"sign-return-address-all", i32 0}
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!9 = !{i32 1, !"sign-return-address-with-bkey", i32 0}
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!10 = !{!"clang version 12.0.0 (https://github.com/llvm/llvm-project.git b19275ba870a06c5ef0428af6264ffd28c7cde9e)"}
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!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)
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!12 = !DISubroutineType(types: !13)
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!13 = !{!14, !21, !21, !18}
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!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "svint32x2_t", file: !15, line: 59, baseType: !16)
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!15 = !DIFile(filename: "lib/clang/12.0.0/include/arm_sve.h", directory: "/tmp")
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!16 = !DIDerivedType(tag: DW_TAG_typedef, name: "__clang_svint32x2_t", file: !1, baseType: !17)
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!17 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, flags: DIFlagVector, elements: !19)
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!18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!19 = !{!20}
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!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))
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!21 = !DIDerivedType(tag: DW_TAG_typedef, name: "svint32_t", file: !15, line: 34, baseType: !22)
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!22 = !DIDerivedType(tag: DW_TAG_typedef, name: "__SVInt32_t", file: !1, baseType: !23)
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!23 = !DICompositeType(tag: DW_TAG_array_type, baseType: !18, flags: DIFlagVector, elements: !24)
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!24 = !{!25}
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!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))
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!26 = !{!27, !28, !29}
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!27 = !DILocalVariable(name: "z0", arg: 1, scope: !11, file: !1, line: 6, type: !21)
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!28 = !DILocalVariable(name: "z1", arg: 2, scope: !11, file: !1, line: 6, type: !21)
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!29 = !DILocalVariable(name: "c", arg: 3, scope: !11, file: !1, line: 6, type: !18)
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!30 = !DILocation(line: 0, scope: !11)
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!31 = !DILocation(line: 7, column: 7, scope: !32)
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!32 = distinct !DILexicalBlock(scope: !11, file: !1, line: 7, column: 7)
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!33 = !DILocation(line: 7, column: 7, scope: !11)
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!34 = !DILocation(line: 8, column: 12, scope: !32)
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!35 = !DILocation(line: 8, column: 5, scope: !32)
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!36 = !DILocation(line: 9, column: 10, scope: !11)
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!37 = !DILocation(line: 9, column: 3, scope: !11)
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!38 = !DILocation(line: 10, column: 1, scope: !11)
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!39 = !DISubprogram(name: "bar", scope: !1, file: !1, line: 3, type: !40, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!40 = !DISubroutineType(types: !41)
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!41 = !{!17, !23, !23, !23, !23, !23, !23, !23, !23, !23}
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...
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---
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name: foo
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alignment: 4
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tracksRegLiveness: true
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liveins:
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- { reg: '$z0' }
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- { reg: '$z1' }
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- { reg: '$w0' }
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frameInfo:
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maxAlignment: 16
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 0
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savePoint: '%bb.1'
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restorePoint: '%bb.1'
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stack:
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- { id: 0, size: 16, alignment: 16, stack-id: scalable-vector }
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machineFunctionInfo: {}
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body: |
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bb.0.entry:
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successors: %bb.2(0x30000000), %bb.1(0x50000000)
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liveins: $w0, $z0, $z1
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DBG_VALUE $z0, $noreg, !27, !DIExpression(), debug-location !30
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DBG_VALUE $z1, $noreg, !28, !DIExpression(), debug-location !30
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DBG_VALUE $w0, $noreg, !29, !DIExpression(), debug-location !30
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renamable $z2 = COPY $z1
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renamable $z1 = COPY $z0
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DBG_VALUE $w0, $noreg, !29, !DIExpression(), debug-location !30
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DBG_VALUE $z2, $noreg, !28, !DIExpression(), debug-location !30
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DBG_VALUE $z1, $noreg, !27, !DIExpression(), debug-location !30
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CBZW killed renamable $w0, %bb.2, debug-location !33
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B %bb.1, debug-location !33
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bb.1.if.then:
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liveins: $z1
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ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp, debug-location !34
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renamable $p0 = PTRUE_S 31, debug-location !34
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$x0 = ADDXri %stack.0, 0, 0, debug-location !34
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ST1W_IMM renamable $z1, killed renamable $p0, %stack.0, 0, debug-location !34 :: (store unknown-size into %stack.0, align 16)
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$z0 = COPY renamable $z1, debug-location !34
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$z2 = COPY renamable $z1, debug-location !34
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$z3 = COPY renamable $z1, debug-location !34
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$z4 = COPY renamable $z1, debug-location !34
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$z5 = COPY renamable $z1, debug-location !34
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$z6 = COPY renamable $z1, debug-location !34
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$z7 = COPY renamable $z1, debug-location !34
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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
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ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp, debug-location !34
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renamable $p0 = PTRUE_S 31, debug-location !34
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$z3 = IMPLICIT_DEF
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renamable $z1 = LD1W_IMM renamable $p0, %stack.0, 0, debug-location !34 :: (load unknown-size from %stack.0, align 16)
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ST1W_IMM renamable $z3, killed renamable $p0, %stack.0, 0 :: (store unknown-size into %stack.0, align 16)
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renamable $z2 = COPY $z0, debug-location !34
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B %bb.3, debug-location !35
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bb.2.if.end:
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liveins: $z1, $z2
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bb.3.return:
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liveins: $z1, $z2
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$z0 = COPY killed renamable $z2, debug-location !38
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RET_ReallyLR implicit $z0, implicit $z1, debug-location !38
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...
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