166 lines
6.6 KiB
Plaintext
166 lines
6.6 KiB
Plaintext
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# RUN: llc -emit-call-site-info -mtriple=arm-linux-gnu -debug-entry-values -run-pass if-converter %s -o -| FileCheck %s
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# Vefify that the call site info will be updated after the optimization.
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# This test case would previously trigger an assertion when
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# deleting the call instruction.
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# Test case is generated from:
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# extern void
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# foo (int* seg, int subseg);
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# extern int* mri_common_symbol;
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#
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# void
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# baa (int* secptr, int subseg)
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# {
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# if (! (secptr == 0 && subseg == 0))
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# foo (secptr, subseg);
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# mri_common_symbol = 0;
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# }
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#
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# With slight change of MIR - substitution of BL instruction with BL_pred
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# in order to trigger optimization.
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# clang -target arm-linux-gnu -g -O2 -Xclang -femit-debug-entry-values
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# %s -stop-before=if-convert
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#
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# CHECK: callSites:
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# CHECK-NEXT: - { bb: {{.*}}, offset: {{.*}}, fwdArgRegs:
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# CHECK-NEXT: - { arg: 0, reg: '$r0' }
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# CHECK-NEXT: - { arg: 1, reg: '$r1' } }
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--- |
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; ModuleID = 'if-convert-call-site-info.c'
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source_filename = "if-convert-call-site-info.c"
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv6kz-unknown-linux-gnueabihf"
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@mri_common_symbol = external dso_local local_unnamed_addr global i32*, align 4
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; Function Attrs: nounwind
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define dso_local void @baa(i32* %secptr, i32 %subseg) local_unnamed_addr #0 !dbg !14 {
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entry:
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call void @llvm.dbg.value(metadata i32* %secptr, metadata !16, metadata !DIExpression()), !dbg !18
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call void @llvm.dbg.value(metadata i32 %subseg, metadata !17, metadata !DIExpression()), !dbg !18
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%cmp = icmp eq i32* %secptr, null, !dbg !19
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%cmp1 = icmp eq i32 %subseg, 0, !dbg !21
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%or.cond = and i1 %cmp, %cmp1, !dbg !22
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br i1 %or.cond, label %if.end, label %if.then, !dbg !22
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if.then: ; preds = %entry
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tail call void @foo(i32* %secptr, i32 %subseg), !dbg !23
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br label %if.end, !dbg !23
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if.end: ; preds = %entry, %if.then
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store i32* null, i32** @mri_common_symbol, align 4, !dbg !24, !tbaa !25
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ret void, !dbg !29
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}
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declare !dbg !4 dso_local void @foo(i32*, i32) local_unnamed_addr
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**)
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attributes #0 = { "frame-pointer"="all" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9, !10, !11, !12}
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!llvm.ident = !{!13}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
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!1 = !DIFile(filename: "if-convert-call-site-info.c", directory: "/")
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!2 = !{}
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!3 = !{!4}
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!4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 10, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!5 = !DISubroutineType(types: !6)
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!6 = !{null, !7, !8}
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!7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32)
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !{i32 2, !"Dwarf Version", i32 4}
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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!11 = !{i32 1, !"wchar_size", i32 4}
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!12 = !{i32 1, !"min_enum_size", i32 4}
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!13 = !{!"clang version 10.0.0 "}
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!14 = distinct !DISubprogram(name: "baa", scope: !1, file: !1, line: 14, type: !5, scopeLine: 15, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
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!15 = !{!16, !17}
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!16 = !DILocalVariable(name: "secptr", arg: 1, scope: !14, file: !1, line: 14, type: !7)
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!17 = !DILocalVariable(name: "subseg", arg: 2, scope: !14, file: !1, line: 14, type: !8)
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!18 = !DILocation(line: 0, scope: !14)
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!19 = !DILocation(line: 16, column: 17, scope: !20)
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!20 = distinct !DILexicalBlock(scope: !14, file: !1, line: 16, column: 7)
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!21 = !DILocation(line: 16, column: 32, scope: !20)
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!22 = !DILocation(line: 16, column: 22, scope: !20)
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!23 = !DILocation(line: 17, column: 5, scope: !20)
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!24 = !DILocation(line: 18, column: 21, scope: !14)
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!25 = !{!26, !26, i64 0}
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!26 = !{!"any pointer", !27, i64 0}
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!27 = !{!"omnipotent char", !28, i64 0}
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!28 = !{!"Simple C/C++ TBAA"}
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!29 = !DILocation(line: 19, column: 1, scope: !14)
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...
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---
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name: baa
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alignment: 2
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tracksRegLiveness: true
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liveins:
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- { reg: '$r0' }
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- { reg: '$r1' }
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frameInfo:
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stackSize: 8
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 0
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stack:
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- { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr',
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callee-saved-restored: false }
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- { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r11' }
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callSites:
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- { bb: 2, offset: 0, fwdArgRegs:
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- { arg: 0, reg: '$r0' }
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- { arg: 1, reg: '$r1' } }
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constants:
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- id: 0
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value: 'i32** null'
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alignment: 4
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machineFunctionInfo: {}
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body: |
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bb.0.entry:
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successors: %bb.1(0x60000000), %bb.2(0x20000000)
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liveins: $r0, $r1, $lr
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DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18
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DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18
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DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18
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DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18
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$sp = frame-setup STMDB_UPD $sp, 14, $noreg, killed $r11, killed $lr
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frame-setup CFI_INSTRUCTION def_cfa_offset 8
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frame-setup CFI_INSTRUCTION offset $lr, -4
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frame-setup CFI_INSTRUCTION offset $r11, -8
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$r11 = frame-setup MOVr killed $sp, 14, $noreg, $noreg
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frame-setup CFI_INSTRUCTION def_cfa_register $r11
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CMPri renamable $r0, 0, 14, $noreg, implicit-def $cpsr, debug-location !22
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Bcc %bb.2, 1, killed $cpsr, debug-location !22
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bb.1.entry:
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successors: %bb.3(0x55555555), %bb.2(0x2aaaaaab)
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liveins: $r0, $r1
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CMPri renamable $r1, 0, 14, $noreg, implicit-def $cpsr, debug-location !22
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Bcc %bb.3, 0, killed $cpsr, debug-location !22
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bb.2.if.then:
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liveins: $r0, $r1
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BL_pred @foo, 14, $noreg, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit-def $sp, debug-location !23
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bb.3.if.end:
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renamable $r0 = LDRi12 %const.0, 0, 14, $noreg, debug-location !24 :: (load 4 from constant-pool)
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renamable $r1 = MOVi 0, 14, $noreg, $noreg
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STRi12 killed renamable $r1, killed renamable $r0, 0, 14, $noreg, debug-location !24 :: (store 4 into @mri_common_symbol, !tbaa !25)
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$sp = LDMIA_RET $sp, 14, $noreg, def $r11, def $pc, debug-location !29
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...
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