80aa2290fb
Summary: This avoids needing an isel pattern for each condition code. And it removes translation switches for converting between Jcc instructions and condition codes. Now the printer, encoder and disassembler take care of converting the immediate. We use InstAliases to handle the assembly matching. But we print using the asm string in the instruction definition. The instruction itself is marked IsCodeGenOnly=1 to hide it from the assembly parser. Reviewers: spatel, lebedev.ri, courbet, gchatelet, RKSimon Reviewed By: RKSimon Subscribers: MatzeB, qcolombet, eraman, hiraditya, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60228 llvm-svn: 357802
122 lines
5.1 KiB
YAML
122 lines
5.1 KiB
YAML
# RUN: llc -verify-machineinstrs -start-after=virtregrewriter -filetype=obj -o - %s | llvm-dwarfdump -a - | FileCheck %s
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#
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# This testcase has an implicit def pseudo-instruction with a debug location.
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#
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# CHECK: .debug_info contents:
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# CHECK: DW_TAG_subprogram
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# CHECK: DW_AT_low_pc (0x0000000000000000)
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# CHECK-NOT: DW_TAG
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# CHECK: DW_AT_specification {{.*}} "_ZN1C5m_fn3Ev"
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# CHECK-NOT: DW_TAG
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# Here should not be an inlined subroutine with 0 length.
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# CHECK: NULL
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#
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# CHECK: Address Line Column File ISA Discriminator Flags
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# CHECK-NEXT: ---
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# CHECK-NEXT: 25 0 1 0 0 is_stmt
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# CHECK-NEXT: 29 28 1 0 0 is_stmt prologue_end
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# CHECK-NEXT: 29 28 1 0 0 is_stmt end_sequence
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--- |
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source_filename = "t.ll"
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx"
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%class.E = type { %class.D }
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%class.D = type { %class.B }
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%class.B = type { %class.A, %class.A }
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%class.A = type { i8 }
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%class.C = type <{ %class.E*, %class.B, [2 x i8] }>
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@a = local_unnamed_addr global %class.E* null, align 4
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define i32 @_ZN1C5m_fn3Ev(%class.C* nocapture) local_unnamed_addr align 2 !dbg !6 {
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%2 = alloca %class.B, align 1
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%3 = load %class.E*, %class.E** @a, align 4
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%4 = icmp eq %class.E* %3, null
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br i1 %4, label %10, label %5
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; <label>:5: ; preds = %1
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%6 = bitcast %class.C* %0 to %class.D**
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%7 = load %class.D*, %class.D** %6, align 4
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%8 = bitcast %class.D* %7 to i8*
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%9 = load i8, i8* %8, align 1
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br label %10
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; <label>:10: ; preds = %5, %1
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%11 = phi i8 [ %9, %5 ], [ undef, %1 ], !dbg !10
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%12 = getelementptr inbounds %class.C, %class.C* %0, i32 0, i32 1, i32 0, i32 0
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store i8 %11, i8* %12, align 1, !dbg !14
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ret i32 undef
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "Apple LLVM version 8.1.0 (clang-802.0.30.3)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2)
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!1 = !DIFile(filename: "test.ii", directory: "/")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"PIC Level", i32 2}
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!6 = distinct !DISubprogram(name: "m_fn3", linkageName: "_ZN1C5m_fn3Ev", scope: !7, file: !1, line: 25, type: !8, isLocal: false, isDefinition: true, scopeLine: 25, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !9, retainedNodes: !2)
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!7 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "C", file: !1, line: 14, size: 64, align: 32, elements: !2, identifier: "_ZTS1C")
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!8 = !DISubroutineType(types: !2)
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!9 = !DISubprogram(name: "m_fn3", linkageName: "_ZN1C5m_fn3Ev", scope: !7, file: !1, line: 15, type: !8, isLocal: false, isDefinition: false, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true)
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!10 = !DILocation(line: 99, column: 9, scope: !11, inlinedAt: !14)
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!11 = distinct !DISubprogram(name: "m_fn1", linkageName: "_ZN1A5m_fn1Ev", scope: !12, file: !1, line: 5, type: !8, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !13, retainedNodes: !2)
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!12 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !1, line: 1, size: 8, align: 8, elements: !2, identifier: "_ZTS1A")
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!13 = !DISubprogram(name: "m_fn1", linkageName: "_ZN1A5m_fn1Ev", scope: !12, file: !1, line: 5, type: !8, isLocal: false, isDefinition: false, scopeLine: 5, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true)
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!14 = !DILocation(line: 29, column: 28, scope: !6)
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...
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---
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name: _ZN1C5m_fn3Ev
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alignment: 4
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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tracksRegLiveness: true
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liveins:
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- { reg: '$rdi' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 0
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offsetAdjustment: 0
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maxAlignment: 8
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adjustsStack: false
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hasCalls: false
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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#stack:
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# - { id: 0, name: '<unnamed alloca>', offset: -16, size: 2, alignment: 8 }
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body: |
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bb.0 (%ir-block.1):
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $rdi
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CMP64mi8 $rip, 1, _, @a, _, 0, implicit-def $eflags :: (dereferenceable load 8 from @a, align 4)
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JCC_1 %bb.1, 4, implicit $eflags
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bb.2 (%ir-block.5):
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liveins: $rdi
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$rax = MOV64rm $rdi, 1, _, 0, _ :: (load 8 from %ir.6, align 4)
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$al = MOV8rm killed $rax, 1, _, 0, _ :: (load 1 from %ir.8)
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MOV8mr killed $rdi, 1, _, 8, _, killed $al, debug-location !14 :: (store 1 into %ir.12)
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RETQ undef $eax
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bb.1:
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liveins: $rdi
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$al = IMPLICIT_DEF debug-location !10
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MOV8mr killed $rdi, 1, _, 8, _, killed $al, debug-location !14 :: (store 1 into %ir.12)
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RETQ undef $eax
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...
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