af82e14c4a
Patch 3/4 adding bitcode support, though the final patch doesn't depend on this one. Prior to this patch, a Key Instructions function inlined into a Not-Key-Instructions function fell back to Not-Key-Instructions handling. In order to fully support inlining mixed modes we need to run `computeKeyInstructions` (in case there's a Key Instructions scope) and `findForceIsStmtInstrs` (in case there's a Not-Key-Instructions scope) on all functions. This has a slight performance cost for all configurations - see PR for details.
94 lines
4.6 KiB
YAML
94 lines
4.6 KiB
YAML
# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \
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# RUN: | llvm-objdump -d - --no-show-raw-insn \
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# RUN: | FileCheck %s --check-prefix=OBJ
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# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \
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# RUN: | llvm-dwarfdump - --debug-line \
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# RUN: | FileCheck %s --check-prefix=DBG
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# Test is_stmt emission for a key-instructions function inlined into a
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# not-key-instructions function, and vice versa.
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--- |
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target triple = "x86_64-unknown-linux-gnu"
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define hidden noundef i32 @key() local_unnamed_addr !dbg !5 {
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entry:
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ret i32 0
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}
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define hidden noundef i32 @not_key() local_unnamed_addr !dbg !9 {
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entry:
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ret i32 0
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!llvm.ident = !{!4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_17, file: !1, producer: "clang version 21.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{!"clang version 21.0.0"}
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!5 = distinct !DISubprogram(name: "key", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: true)
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!6 = !DISubroutineType(types: !7)
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!7 = !{}
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!9 = distinct !DISubprogram(name: "not_key", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: false)
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!10 = distinct !DILocation(line: 5, scope: !5)
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!11 = distinct !DILocation(line: 9, scope: !9)
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...
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---
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name: key
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alignment: 16
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body: |
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bb.0.entry:
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; OBJ: 0000000000000000 <key>:
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; OBJ-NEXT: 0: movl $0x1, %eax
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; OBJ-NEXT: 5: movl $0x2, %eax
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; OBJ-NEXT: a: movl $0x3, %eax
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; OBJ-NEXT: f: movl $0x4, %eax
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; OBJ-NEXT: 14: movl $0x5, %eax
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; OBJ-NEXT: 19: retq
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;
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; DBG: Address Line Column File ISA Discriminator OpIndex Flags
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; DBG-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
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; DBG-NEXT: 0x0000000000000000 1 0 0 0 0 0 is_stmt prologue_end
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; DBG-NEXT: 0x0000000000000005 2 0 0 0 0 0 is_stmt
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; DBG-NEXT: 0x000000000000000a 2 0 0 0 0 0
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; DBG-NEXT: 0x000000000000000f 3 0 0 0 0 0 is_stmt
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; DBG-NEXT: 0x0000000000000014 3 0 0 0 0 0
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;
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$eax = MOV32ri 1, debug-location !DILocation(line: 1, scope: !5) ; is_stmt (prologue_end)
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$eax = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 1) ; is_stmt (key)
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$eax = MOV32ri 3, debug-location !DILocation(line: 2, scope: !9, inlinedAt: !10)
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$eax = MOV32ri 4, debug-location !DILocation(line: 3, scope: !9, inlinedAt: !10) ; is_stmt (not_key)
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$eax = MOV32ri 5, debug-location !DILocation(line: 3, scope: !5, atomGroup: 1, atomRank: 2) ; is_stmt (key)
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RET64 $eax, debug-location !DILocation(line: 3, scope: !5, atomGroup: 1, atomRank: 1)
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...
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---
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name: not_key
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alignment: 16
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body: |
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bb.0.entry:
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; OBJ: 0000000000000020 <not_key>:
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; OBJ-NEXT: 20: movl $0x1, %eax
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; OBJ-NEXT: 25: movl $0x2, %eax
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; OBJ-NEXT: 2a: movl $0x3, %eax
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; OBJ-NEXT: 2f: retq
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;
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; Address Line Column File ISA Discriminator OpIndex Flags
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; ------------------ ------ ------ ------ --- ------------- ------- -------------
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; DBG-NEXT: 0x0000000000000020 1 0 0 0 0 0 is_stmt prologue_end
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; DBG-NEXT: 0x0000000000000025 2 0 0 0 0 0
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; DBG-NEXT: 0x000000000000002a 3 0 0 0 0 0 is_stmt
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; DBG-NEXT: 0x000000000000002f 3 0 0 0 0 0
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;
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$eax = MOV32ri 1, debug-location !DILocation(line: 1, scope: !9) ; is_stmt (prologue_end)
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$eax = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5, inlinedAt: !11, atomGroup: 1, atomRank: 2)
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$eax = MOV32ri 3, debug-location !DILocation(line: 3, scope: !5, inlinedAt: !11, atomGroup: 1, atomRank: 1) ; is_stmt (key)
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RET64 $eax, debug-location !DILocation(line: 3, scope: !9)
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...
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