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1# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \2# RUN: | llvm-objdump -d - --no-show-raw-insn \3# RUN: | FileCheck %s --check-prefix=OBJ4 5# RUN: llc %s --start-after=livedebugvalues --dwarf-use-key-instructions --filetype=obj -o - \6# RUN: | llvm-dwarfdump - --debug-line \7# RUN: | FileCheck %s --check-prefix=DBG8 9# OBJ: 0000000000000000 <_Z1fPiii>:10# OBJ-NEXT: 0: movl $0x0, %ebx11# OBJ-NEXT: 5: movl $0x1, %ebx12# OBJ-NEXT: a: movl $0x2, %ebx13# OBJ-NEXT: f: movl $0x3, %ebx14# OBJ-NEXT: 14: movl $0x4, %eax15# OBJ-NEXT: 19: movl $0x5, %eax16# OBJ-NEXT: 1e: movl $0x6, %eax17# OBJ-NEXT: 23: movl $0x7, %eax18# OBJ-NEXT: 28: retq19 20# DBG: Address Line Column File ISA Discriminator OpIndex Flags21# DBG-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------22# DBG-NEXT: 0x0000000000000000 1 0 0 0 0 0 is_stmt prologue_end23# DBG-NEXT: 0x0000000000000005 2 0 0 0 0 0 is_stmt24# DBG-NEXT: 0x0000000000000019 2 0 0 0 0 0 is_stmt25# DBG-NEXT: 0x000000000000001e 2 0 0 0 0 0 is_stmt26# DBG-NEXT: 0x0000000000000023 2 0 0 0 0 0 is_stmt27# DBG-NEXT: 0x0000000000000029 2 0 0 0 0 0 is_stmt end_sequence28 29## Check that interleaving atoms on the same line still produces reasonable30## is_stmt placement (the is_stmts want to "float up" to the first instruction31## in a contiguous set with the same line, but we don't let them float past32## other atom groups).33 34--- |35 target triple = "x86_64-unknown-linux-gnu"36 37 define hidden noundef i32 @_Z1fPiii(ptr %a, i32 %b, i32 %c, i1 %cond) local_unnamed_addr !dbg !5 {38 entry:39 ret i32 240 }41 42 !llvm.dbg.cu = !{!0}43 !llvm.module.flags = !{!2, !3}44 !llvm.ident = !{!4}45 46 !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)47 !1 = !DIFile(filename: "test.cpp", directory: "/")48 !2 = !{i32 7, !"Dwarf Version", i32 5}49 !3 = !{i32 2, !"Debug Info Version", i32 3}50 !4 = !{!"clang version 19.0.0"}51 !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)52 !6 = !DISubroutineType(types: !7)53 !7 = !{}54 !8 = !DILocalVariable(name: "x", scope: !5, file: !1, line: 1, type: !7)55 56...57---58name: _Z1fPiii59alignment: 1660body: |61 bb.0.entry:62 $ebx = MOV32ri 0, debug-location !DILocation(line: 1, scope: !5) 63 ;; is_stmt floats up here from mov 3.64 $ebx = MOV32ri 1, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 1)65 $ebx = MOV32ri 2, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 2)66 $ebx = MOV32ri 3, debug-location !DILocation(line: 2, scope: !5, atomGroup: 1, atomRank: 1)67 $eax = MOV32ri 4, debug-location !DILocation(line: 2, scope: !5)68 $eax = MOV32ri 5, debug-location !DILocation(line: 2, scope: !5, atomGroup: 2, atomRank: 1)69 ;; is_stmt for this group can't float higher due to atom group above.70 $eax = MOV32ri 6, debug-location !DILocation(line: 2, scope: !5, atomGroup: 3, atomRank: 1)71 ;; Same again.72 $eax = MOV32ri 7, debug-location !DILocation(line: 2, scope: !5, atomGroup: 2, atomRank: 1)73 RET64 $eax74 75...76