derek.holloway
7502bf64a4
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67 lines
3.1 KiB
YAML
67 lines
3.1 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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# OBJ: 0000000000000000 <_Z1fPiii>:
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# OBJ-NEXT: 0: movl $0x1, %ebx
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# OBJ-NEXT: 5: movl $0x2, %eax
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# OBJ-NEXT: a: movl $0x0, %eax
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# OBJ-NEXT: f: movl $0x0, %eax
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# OBJ-NEXT: 14: retq
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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 0 0 0 0 0 0
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# DBG-NEXT: 0x0000000000000014 2 0 0 0 0 0
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# DBG-NEXT: 0x0000000000000015 2 0 0 0 0 0 end_sequence
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## The `RET64` is the only key instruction. The `MOV32ri 2` has the same line
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## number so the is_stmt should "float up" from the ret to the mov. Check this
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## happens; check that the DBG_VALUE wedged between them with a different line
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## number, the line zero, and missing DebugLoc, don't disrupt that; and check
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## the is_stmt doesn't float too far up onto the `MOV32ri 1`.
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--- |
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target triple = "x86_64-unknown-linux-gnu"
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define hidden noundef i32 @_Z1fPiii(ptr %a, i32 %b, i32 %c, i1 %cond) local_unnamed_addr !dbg !5 {
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entry:
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ret i32 2
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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 19.0.0", 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 19.0.0"}
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!5 = distinct !DISubprogram(name: "f", 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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!8 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 1, type: !7)
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...
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---
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name: _Z1fPiii
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alignment: 16
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body: |
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bb.0.entry:
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$ebx = MOV32ri 1, debug-location !DILocation(line: 1, scope: !5)
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$eax = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5)
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$eax = MOV32ri 0, debug-location !DILocation(line: 0, scope: !5)
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$eax = MOV32ri 0
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DBG_VALUE $noreg, $noreg, !8, !DIExpression(), debug-location !DILocation(line: 1, scope: !5)
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RET64 $eax, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 2)
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...
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