1# RUN: llc -emit-call-site-info -mtriple=arm-linux-gnu -debug-entry-values -run-pass if-converter %s -o -| FileCheck %s 2 3# Vefify that the call site info will be updated after the optimization. 4# This test case would previously trigger an assertion when 5# deleting the call instruction. 6 7# Test case is generated from: 8# extern void 9# foo (int* seg, int subseg); 10# extern int* mri_common_symbol; 11# 12# void 13# baa (int* secptr, int subseg) 14# { 15# if (! (secptr == 0 && subseg == 0)) 16# foo (secptr, subseg); 17# mri_common_symbol = 0; 18# } 19# 20# With slight change of MIR - substitution of BL instruction with BL_pred 21# in order to trigger optimization. 22# clang -target arm-linux-gnu -g -O2 -Xclang -femit-debug-entry-values 23# %s -stop-before=if-convert 24# 25# CHECK: callSites: 26# CHECK-NEXT: - { bb: {{.*}}, offset: {{.*}}, fwdArgRegs: 27# CHECK-NEXT: - { arg: 0, reg: '$r0' } 28# CHECK-NEXT: - { arg: 1, reg: '$r1' } } 29 30--- | 31 ; ModuleID = 'if-convert-call-site-info.c' 32 source_filename = "if-convert-call-site-info.c" 33 target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 34 target triple = "armv6kz-unknown-linux-gnueabihf" 35 36 @mri_common_symbol = external dso_local local_unnamed_addr global ptr, align 4 37 38 ; Function Attrs: nounwind 39 define dso_local void @baa(ptr %secptr, i32 %subseg) local_unnamed_addr #0 !dbg !14 { 40 entry: 41 call void @llvm.dbg.value(metadata ptr %secptr, metadata !16, metadata !DIExpression()), !dbg !18 42 call void @llvm.dbg.value(metadata i32 %subseg, metadata !17, metadata !DIExpression()), !dbg !18 43 %cmp = icmp eq ptr %secptr, null, !dbg !19 44 %cmp1 = icmp eq i32 %subseg, 0, !dbg !21 45 %or.cond = and i1 %cmp, %cmp1, !dbg !22 46 br i1 %or.cond, label %if.end, label %if.then, !dbg !22 47 48 if.then: ; preds = %entry 49 tail call void @foo(ptr %secptr, i32 %subseg), !dbg !23 50 br label %if.end, !dbg !23 51 52 if.end: ; preds = %entry, %if.then 53 store ptr null, ptr @mri_common_symbol, align 4, !dbg !24, !tbaa !25 54 ret void, !dbg !29 55 } 56 57 declare !dbg !4 dso_local void @foo(ptr, i32) local_unnamed_addr 58 59 ; Function Attrs: nounwind readnone speculatable willreturn 60 declare void @llvm.dbg.value(metadata, metadata, metadata) 61 62 ; Function Attrs: nounwind 63 declare void @llvm.stackprotector(ptr, ptr) 64 65 attributes #0 = { "frame-pointer"="all" } 66 67 !llvm.dbg.cu = !{!0} 68 !llvm.module.flags = !{!9, !10, !11, !12} 69 !llvm.ident = !{!13} 70 71 !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) 72 !1 = !DIFile(filename: "if-convert-call-site-info.c", directory: "/") 73 !2 = !{} 74 !3 = !{!4} 75 !4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 10, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) 76 !5 = !DISubroutineType(types: !6) 77 !6 = !{null, !7, !8} 78 !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32) 79 !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 80 !9 = !{i32 2, !"Dwarf Version", i32 4} 81 !10 = !{i32 2, !"Debug Info Version", i32 3} 82 !11 = !{i32 1, !"wchar_size", i32 4} 83 !12 = !{i32 1, !"min_enum_size", i32 4} 84 !13 = !{!"clang version 10.0.0 "} 85 !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) 86 !15 = !{!16, !17} 87 !16 = !DILocalVariable(name: "secptr", arg: 1, scope: !14, file: !1, line: 14, type: !7) 88 !17 = !DILocalVariable(name: "subseg", arg: 2, scope: !14, file: !1, line: 14, type: !8) 89 !18 = !DILocation(line: 0, scope: !14) 90 !19 = !DILocation(line: 16, column: 17, scope: !20) 91 !20 = distinct !DILexicalBlock(scope: !14, file: !1, line: 16, column: 7) 92 !21 = !DILocation(line: 16, column: 32, scope: !20) 93 !22 = !DILocation(line: 16, column: 22, scope: !20) 94 !23 = !DILocation(line: 17, column: 5, scope: !20) 95 !24 = !DILocation(line: 18, column: 21, scope: !14) 96 !25 = !{!26, !26, i64 0} 97 !26 = !{!"any pointer", !27, i64 0} 98 !27 = !{!"omnipotent char", !28, i64 0} 99 !28 = !{!"Simple C/C++ TBAA"} 100 !29 = !DILocation(line: 19, column: 1, scope: !14) 101 102... 103--- 104name: baa 105alignment: 2 106tracksRegLiveness: true 107liveins: 108 - { reg: '$r0' } 109 - { reg: '$r1' } 110frameInfo: 111 stackSize: 8 112 maxAlignment: 4 113 adjustsStack: true 114 hasCalls: true 115 maxCallFrameSize: 0 116stack: 117 - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr', 118 callee-saved-restored: false } 119 - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r11' } 120callSites: 121 - { bb: 2, offset: 0, fwdArgRegs: 122 - { arg: 0, reg: '$r0' } 123 - { arg: 1, reg: '$r1' } } 124constants: 125 - id: 0 126 value: 'ptr null' 127 alignment: 4 128machineFunctionInfo: {} 129body: | 130 bb.0.entry: 131 successors: %bb.1(0x60000000), %bb.2(0x20000000) 132 liveins: $r0, $r1, $lr 133 134 DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18 135 DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18 136 DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18 137 DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18 138 $sp = frame-setup STMDB_UPD $sp, 14, $noreg, killed $r11, killed $lr 139 frame-setup CFI_INSTRUCTION def_cfa_offset 8 140 frame-setup CFI_INSTRUCTION offset $lr, -4 141 frame-setup CFI_INSTRUCTION offset $r11, -8 142 $r11 = frame-setup MOVr killed $sp, 14, $noreg, $noreg 143 frame-setup CFI_INSTRUCTION def_cfa_register $r11 144 CMPri renamable $r0, 0, 14, $noreg, implicit-def $cpsr, debug-location !22 145 Bcc %bb.2, 1, killed $cpsr, debug-location !22 146 147 bb.1.entry: 148 successors: %bb.3(0x55555555), %bb.2(0x2aaaaaab) 149 liveins: $r0, $r1 150 151 CMPri renamable $r1, 0, 14, $noreg, implicit-def $cpsr, debug-location !22 152 Bcc %bb.3, 0, killed $cpsr, debug-location !22 153 154 bb.2.if.then: 155 liveins: $r0, $r1 156 157 BL_pred @foo, 14, $noreg, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit-def $sp, debug-location !23 158 159 bb.3.if.end: 160 renamable $r0 = LDRi12 %const.0, 0, 14, $noreg, debug-location !24 :: (load (s32) from constant-pool) 161 renamable $r1 = MOVi 0, 14, $noreg, $noreg 162 STRi12 killed renamable $r1, killed renamable $r0, 0, 14, $noreg, debug-location !24 :: (store (s32) into @mri_common_symbol, !tbaa !25) 163 $sp = LDMIA_RET $sp, 14, $noreg, def $r11, def $pc, debug-location !29 164 165... 166