| # RUN: llc -emit-call-site-info -mtriple=arm-linux-gnu -debug-entry-values -run-pass if-converter %s -o -| FileCheck %s |
| |
| # Vefify that the call site info will be updated after the optimization. |
| # This test case would previously trigger an assertion when |
| # deleting the call instruction. |
| |
| # Test case is generated from: |
| # extern void |
| # foo (int* seg, int subseg); |
| # extern int* mri_common_symbol; |
| # |
| # void |
| # baa (int* secptr, int subseg) |
| # { |
| # if (! (secptr == 0 && subseg == 0)) |
| # foo (secptr, subseg); |
| # mri_common_symbol = 0; |
| # } |
| # |
| # With slight change of MIR - substitution of BL instruction with BL_pred |
| # in order to trigger optimization. |
| # clang -target arm-linux-gnu -g -O2 -Xclang -femit-debug-entry-values |
| # %s -stop-before=if-convert |
| # |
| # CHECK: callSites: |
| # CHECK-NEXT: - { bb: {{.*}}, offset: {{.*}}, fwdArgRegs: |
| # CHECK-NEXT: - { arg: 0, reg: '$r0' } |
| # CHECK-NEXT: - { arg: 1, reg: '$r1' } } |
| |
| --- | |
| ; ModuleID = 'if-convert-call-site-info.c' |
| source_filename = "if-convert-call-site-info.c" |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "armv6kz-unknown-linux-gnueabihf" |
| |
| @mri_common_symbol = external dso_local local_unnamed_addr global i32*, align 4 |
| |
| ; Function Attrs: nounwind |
| define dso_local void @baa(i32* %secptr, i32 %subseg) local_unnamed_addr #0 !dbg !14 { |
| entry: |
| call void @llvm.dbg.value(metadata i32* %secptr, metadata !16, metadata !DIExpression()), !dbg !18 |
| call void @llvm.dbg.value(metadata i32 %subseg, metadata !17, metadata !DIExpression()), !dbg !18 |
| %cmp = icmp eq i32* %secptr, null, !dbg !19 |
| %cmp1 = icmp eq i32 %subseg, 0, !dbg !21 |
| %or.cond = and i1 %cmp, %cmp1, !dbg !22 |
| br i1 %or.cond, label %if.end, label %if.then, !dbg !22 |
| |
| if.then: ; preds = %entry |
| tail call void @foo(i32* %secptr, i32 %subseg), !dbg !23 |
| br label %if.end, !dbg !23 |
| |
| if.end: ; preds = %entry, %if.then |
| store i32* null, i32** @mri_common_symbol, align 4, !dbg !24, !tbaa !25 |
| ret void, !dbg !29 |
| } |
| |
| declare !dbg !4 dso_local void @foo(i32*, i32) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.stackprotector(i8*, i8**) |
| |
| attributes #0 = { "frame-pointer"="all" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!9, !10, !11, !12} |
| !llvm.ident = !{!13} |
| |
| !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) |
| !1 = !DIFile(filename: "if-convert-call-site-info.c", directory: "/") |
| !2 = !{} |
| !3 = !{!4} |
| !4 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 10, type: !5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7, !8} |
| !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32) |
| !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !9 = !{i32 2, !"Dwarf Version", i32 4} |
| !10 = !{i32 2, !"Debug Info Version", i32 3} |
| !11 = !{i32 1, !"wchar_size", i32 4} |
| !12 = !{i32 1, !"min_enum_size", i32 4} |
| !13 = !{!"clang version 10.0.0 "} |
| !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) |
| !15 = !{!16, !17} |
| !16 = !DILocalVariable(name: "secptr", arg: 1, scope: !14, file: !1, line: 14, type: !7) |
| !17 = !DILocalVariable(name: "subseg", arg: 2, scope: !14, file: !1, line: 14, type: !8) |
| !18 = !DILocation(line: 0, scope: !14) |
| !19 = !DILocation(line: 16, column: 17, scope: !20) |
| !20 = distinct !DILexicalBlock(scope: !14, file: !1, line: 16, column: 7) |
| !21 = !DILocation(line: 16, column: 32, scope: !20) |
| !22 = !DILocation(line: 16, column: 22, scope: !20) |
| !23 = !DILocation(line: 17, column: 5, scope: !20) |
| !24 = !DILocation(line: 18, column: 21, scope: !14) |
| !25 = !{!26, !26, i64 0} |
| !26 = !{!"any pointer", !27, i64 0} |
| !27 = !{!"omnipotent char", !28, i64 0} |
| !28 = !{!"Simple C/C++ TBAA"} |
| !29 = !DILocation(line: 19, column: 1, scope: !14) |
| |
| ... |
| --- |
| name: baa |
| alignment: 2 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r0' } |
| - { reg: '$r1' } |
| frameInfo: |
| stackSize: 8 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr', |
| callee-saved-restored: false } |
| - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r11' } |
| callSites: |
| - { bb: 2, offset: 0, fwdArgRegs: |
| - { arg: 0, reg: '$r0' } |
| - { arg: 1, reg: '$r1' } } |
| constants: |
| - id: 0 |
| value: 'i32** null' |
| alignment: 4 |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| successors: %bb.1(0x60000000), %bb.2(0x20000000) |
| liveins: $r0, $r1, $lr |
| |
| DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18 |
| DBG_VALUE $r0, $noreg, !16, !DIExpression(), debug-location !18 |
| DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18 |
| DBG_VALUE $r1, $noreg, !17, !DIExpression(), debug-location !18 |
| $sp = frame-setup STMDB_UPD $sp, 14, $noreg, killed $r11, killed $lr |
| frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| frame-setup CFI_INSTRUCTION offset $r11, -8 |
| $r11 = frame-setup MOVr killed $sp, 14, $noreg, $noreg |
| frame-setup CFI_INSTRUCTION def_cfa_register $r11 |
| CMPri renamable $r0, 0, 14, $noreg, implicit-def $cpsr, debug-location !22 |
| Bcc %bb.2, 1, killed $cpsr, debug-location !22 |
| |
| bb.1.entry: |
| successors: %bb.3(0x55555555), %bb.2(0x2aaaaaab) |
| liveins: $r0, $r1 |
| |
| CMPri renamable $r1, 0, 14, $noreg, implicit-def $cpsr, debug-location !22 |
| Bcc %bb.3, 0, killed $cpsr, debug-location !22 |
| |
| bb.2.if.then: |
| liveins: $r0, $r1 |
| |
| BL_pred @foo, 14, $noreg, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit-def $sp, debug-location !23 |
| |
| bb.3.if.end: |
| renamable $r0 = LDRi12 %const.0, 0, 14, $noreg, debug-location !24 :: (load 4 from constant-pool) |
| renamable $r1 = MOVi 0, 14, $noreg, $noreg |
| STRi12 killed renamable $r1, killed renamable $r0, 0, 14, $noreg, debug-location !24 :: (store 4 into @mri_common_symbol, !tbaa !25) |
| $sp = LDMIA_RET $sp, 14, $noreg, def $r11, def $pc, debug-location !29 |
| |
| ... |
