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According to DWARF standard, is_stmt is a global flag; when set or cleared it should affect subsequent .loc directives. However llvm assembler handled is_stmt differently: it forced all locations to have is_stmt=1 unless is_stmt was specified explicitly as 0. The fix utilizes current DWARF state flags to compute correct is_stmt values. See https://bugs.llvm.org/show_bug.cgi?id=45529 for a detailed issue description. Reviewers: arsenm, probinson, enderby Differential Revision: https://reviews.llvm.org/D78102
26 lines
647 B
ArmAsm
26 lines
647 B
ArmAsm
# RUN: llvm-mc -triple i386-unknown-unknown -filetype=obj %s -o %t
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# RUN: llvm-dwarfdump -debug-line %t | FileCheck %s
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.file 1 "test.c"
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.loc 1 2
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nop
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.loc 1 4 is_stmt 0
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nop
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.loc 1 6
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nop
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.loc 1 8 is_stmt 1
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nop
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.loc 1 10
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nop
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# CHECK: .debug_line
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# CHECK: file_names[ 1]:
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# CHECK-NEXT: name: "test.c"
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# CHECK-NEXT: dir_index: 0
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# CHECK: 0x{{0+}}0 2 0 1 0 0 is_stmt
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# CHECK: 0x{{0+}}1 4 0 1 0 0 {{$}}
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# CHECK: 0x{{0+}}2 6 0 1 0 0 {{$}}
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# CHECK: 0x{{0+}}3 8 0 1 0 0 is_stmt
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# CHECK: 0x{{0+}}4 10 0 1 0 0 is_stmt
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# CHECK: 0x{{0+}}5 10 0 1 0 0 is_stmt end_sequence
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