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f1e4168f92
D85085 was pushed earlier but broke tests on mac and win: http://lab.llvm.org:8080/green/job/clang-stage1-RA/21182/consoleFull#-706149783d489585b-5106-414a-ac11-3ff90657619c Recommitting it after adding mtriple to the llc commands. Emit correct location lists with basic block sections. This patch addresses multiple things: 1) It ensures that const_value is emitted when possible with basic block sections. 2) It emits location lists such that the labels are always within the section boundary. 3) It fixes a bug when the parameter is first used in a non-entry block which is in a different section from the entry block. Differential Revision: https://reviews.llvm.org/D85085
127 lines
6.0 KiB
LLVM
127 lines
6.0 KiB
LLVM
; RUN: llc -O0 %s -mtriple=x86_64 -filetype=obj -o %t && llvm-dwarfdump -debug-info -v %t | FileCheck --check-prefix=NO-SECTIONS %s
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; RUN: llc -O0 %s --basic-block-sections=all --unique-basic-block-section-names -mtriple=x86_64 -filetype=obj -o %t && llvm-dwarfdump -debug-info -v %t | FileCheck --check-prefix=BB-SECTIONS %s
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; RUN: llc -O0 %s --basic-block-sections=all --unique-basic-block-section-names -mtriple=x86_64 -filetype=obj -split-dwarf-file=%t.dwo -o %t && llvm-dwarfdump -debug-info -v %t | FileCheck --check-prefix=BB-SECTIONS %s
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; RUN: llc -O0 %s --basic-block-sections=all -mtriple=x86_64 -o - | FileCheck --check-prefix=BB-SECTIONS-ASM %s
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; RUN: llc -O0 %s -mtriple=x86_64 -filetype=obj -o %t && llvm-dwarfdump -debug-line %t | FileCheck --check-prefix=BB-SECTIONS-LINE-TABLE %s
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; From:
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; 1 int foo(int a) {
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; 2 if (a > 20)
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; 3 return bar();
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; 4 else
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; 5 return baz();
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; 6 }
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; NO-SECTIONS: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000 ".text.hot.")
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; NO-SECTIONS: DW_AT_high_pc [DW_FORM_data4] ({{.*}})
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; BB-SECTIONS: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; BB-SECTIONS-NEXT: DW_AT_ranges [DW_FORM_sec_offset]
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; BB-SECTIONS-NEXT: [{{.*}}) ".text.hot._Z3fooi._Z3fooi.__part.1"
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; BB-SECTIONS-NEXT: [{{.*}}) ".text.hot._Z3fooi._Z3fooi.__part.2"
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; BB-SECTIONS-NEXT: [{{.*}}) ".text.hot._Z3fooi._Z3fooi.__part.3"
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; BB-SECTIONS-NEXT: [{{.*}}) ".text.hot._Z3fooi"
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; BB-SECTIONS-ASM: _Z3fooi:
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; BB-SECTIONS-ASM: .Ltmp{{[0-9]+}}:
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; BB-SECTIONS-ASM-NEXT: .loc 1 2 9 prologue_end
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; BB-SECTIONS-ASM: .Ltmp{{[0-9]+}}:
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; BB-SECTIONS-ASM-NEXT: .loc 1 2 7 is_stmt
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; BB-SECTIONS-ASM: _Z3fooi.__part.1:
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; BB-SECTIONS-ASM: .LBB_END0_{{[0-9]+}}:
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; BB-SECTIONS-ASM: .size _Z3fooi.__part.1, .LBB_END0_{{[0-9]+}}-_Z3fooi.__part.1
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; BB-SECTIONS-ASM: _Z3fooi.__part.2:
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; BB-SECTIONS-ASM: .LBB_END0_{{[0-9]+}}:
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; BB-SECTIONS-ASM: .size _Z3fooi.__part.2, .LBB_END0_{{[0-9]+}}-_Z3fooi.__part.2
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; BB-SECTIONS-ASM: _Z3fooi.__part.3:
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; BB-SECTIONS-ASM: .LBB_END0_{{[0-9]+}}:
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; BB-SECTIONS-ASM: .size _Z3fooi.__part.3, .LBB_END0_{{[0-9]+}}-_Z3fooi.__part.3
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; BB-SECTIONS-ASM: .Lfunc_end0:
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; BB-SECTIONS-ASM: .Ldebug_ranges0:
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; BB-SECTIONS-ASM-NEXT: .quad _Z3fooi.__part.1
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; BB-SECTIONS-ASM-NEXT: .quad .LBB_END0_{{[0-9]+}}
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; BB-SECTIONS-ASM-NEXT: .quad _Z3fooi.__part.2
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; BB-SECTIONS-ASM-NEXT: .quad .LBB_END0_{{[0-9]+}}
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; BB-SECTIONS-ASM-NEXT: .quad _Z3fooi.__part.3
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; BB-SECTIONS-ASM-NEXT: .quad .LBB_END0_{{[0-9]+}}
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; BB-SECTIONS-ASM-NEXT: .quad .Lfunc_begin0
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; BB-SECTIONS-ASM-NEXT: .quad .Lfunc_end0
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; BB-SECTIONS-ASM-NEXT: .quad 0
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; BB-SECTIONS-ASM-NEXT: .quad 0
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; BB-SECTIONS-LINE-TABLE: 0x0000000000000000 1 0 1 0 0 is_stmt
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x0000000000000004 2 9 1 0 0 is_stmt prologue_end
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x0000000000000008 2 7 1 0 0
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x000000000000000a 0 7 1 0 0
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x000000000000000f 3 5 1 0 0 is_stmt
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x0000000000000015 0 5 1 0 0
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x000000000000001a 5 5 1 0 0 is_stmt
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x000000000000001e 6 1 1 0 0 is_stmt
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; BB-SECTIONS-LINE-TABLE-NEXT: 0x0000000000000024 6 1 1 0 0 is_stmt end_sequence
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local i32 @_Z3fooi(i32 %0) !dbg !7 !prof !34 !section_prefix !35 {
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%2 = alloca i32, align 4
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%3 = alloca i32, align 4
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store i32 %0, i32* %3, align 4
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call void @llvm.dbg.declare(metadata i32* %3, metadata !11, metadata !DIExpression()), !dbg !12
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%4 = load i32, i32* %3, align 4, !dbg !13
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%5 = icmp sgt i32 %4, 20, !dbg !15
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br i1 %5, label %6, label %8, !dbg !16, !prof !36
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6: ; preds = %1
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%7 = call i32 @bar()
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store i32 %7, i32* %2, align 4, !dbg !17
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br label %10, !dbg !17
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8: ; preds = %1
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%9 = call i32 @baz()
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store i32 %9, i32* %2, align 4, !dbg !18
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br label %10, !dbg !18
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10: ; preds = %8, %6
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%11 = load i32, i32* %2, align 4, !dbg !19
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ret i32 %11, !dbg !19
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare i32 @bar()
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declare i32 @baz()
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !20}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0 (git@github.com:google/llvm-propeller.git f9421ebf4b3d8b64678bf6c49d1607fdce3f50c5)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "debuginfo.cc", 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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!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 1, type: !10)
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!12 = !DILocation(line: 1, column: 13, scope: !7)
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!13 = !DILocation(line: 2, column: 7, scope: !14)
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!14 = distinct !DILexicalBlock(scope: !7, file: !1, line: 2, column: 7)
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!15 = !DILocation(line: 2, column: 9, scope: !14)
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!16 = !DILocation(line: 2, column: 7, scope: !7)
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!17 = !DILocation(line: 3, column: 5, scope: !14)
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!18 = !DILocation(line: 5, column: 5, scope: !14)
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!19 = !DILocation(line: 6, column: 1, scope: !7)
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!20 = !{i32 1, !"ProfileSummary", !21}
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!21 = !{!22, !23, !24, !25, !26, !27, !28, !29}
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!22 = !{!"ProfileFormat", !"InstrProf"}
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!23 = !{!"TotalCount", i64 10000}
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!24 = !{!"MaxCount", i64 10}
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!25 = !{!"MaxInternalCount", i64 1}
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!26 = !{!"MaxFunctionCount", i64 1000}
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!27 = !{!"NumCounts", i64 3}
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!28 = !{!"NumFunctions", i64 5}
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!29 = !{!"DetailedSummary", !30}
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!30 = !{!31, !32, !33}
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!31 = !{i32 10000, i64 100, i32 1}
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!32 = !{i32 999900, i64 100, i32 1}
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!33 = !{i32 999999, i64 1, i32 2}
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!34 = !{!"function_entry_count", i64 7000}
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!35 = !{!"function_section_prefix", !"hot"}
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!36 = !{!"branch_weights", i32 6999, i32 1}
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