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