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; RUN: llc %s --filetype=obj -o - --dwarf-use-key-instructions \
; RUN: | llvm-objdump -d - --no-show-raw-insn \
; RUN: | FileCheck %s --check-prefix=OBJ
; RUN: llc %s --filetype=obj -o - --dwarf-use-key-instructions \
; RUN: | llvm-dwarfdump - --debug-line \
; RUN: | FileCheck %s --check-prefix=DBG
;; Hand written. The stores and add are in the same atom group. Check that,
;; despite each instruction belonging to a separate block, the stores (line 3)
;; get is_stmt (both rank 1) and the add (line 2) does not (it's rank 2).
; OBJ: 16: addl %ebp, %ebx
; OBJ-NEXT: 18: testb $0x1, %r15b
; OBJ-NEXT: 1c: je 0x23 <_Z1fPiii+0x23>
; OBJ-NEXT: 1e: movl %ebx, (%r14)
; OBJ-NEXT: 21: jmp 0x26 <_Z1fPiii+0x26>
; OBJ-NEXT: 23: movl %ebp, (%r14)
; DBG: Address Line Column File ISA Discriminator OpIndex Flags
; DBG-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
; DBG-NEXT: 0x0000000000000000 1 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x0000000000000011 1 0 0 0 0 0 is_stmt prologue_end
;; The add: no is_stmt
; DBG-NEXT: 0x0000000000000016 2 0 0 0 0 0
; DBG-NEXT: 0x0000000000000018 1 0 0 0 0 0
;; Both stores: is_stmt
; DBG-NEXT: 0x000000000000001e 3 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x0000000000000023 3 0 0 0 0 0 is_stmt
; DBG-NEXT: 0x0000000000000026 1 0 0 0 0 0
; DBG-NEXT: 0x0000000000000028 1 0 0 0 0 0 epilogue_begin
; DBG-NEXT: 0x0000000000000033 1 0 0 0 0 0 end_sequence
target triple = "x86_64-unknown-linux-gnu"
define hidden noundef i32 @_Z1fPiii(ptr %a, i32 %b, i32 %c, i1 %cond) local_unnamed_addr !dbg !11 {
entry:
tail call void @_Z12prologue_endv(), !dbg !DILocation(line: 1, scope: !11)
%add = add nsw i32 %c, %b, !dbg !DILocation(line: 2, scope: !11, atomGroup: 1, atomRank: 2)
br i1 %cond, label %bb1, label %bb2, !dbg !DILocation(line: 1, scope: !11)
bb1:
store i32 %add, ptr %a, align 4, !dbg !DILocation(line: 3, scope: !11, atomGroup: 1, atomRank: 1)
ret i32 %add, !dbg !DILocation(line: 1, scope: !11)
bb2:
store i32 %b, ptr %a, align 4, !dbg !DILocation(line: 3, scope: !11, atomGroup: 1, atomRank: 1)
store i32 %c, ptr %a, align 4, !dbg !DILocation(line: 3, scope: !11, atomGroup: 1, atomRank: 1)
ret i32 %add, !dbg !DILocation(line: 1, scope: !11)
}
declare void @_Z12prologue_endv() local_unnamed_addr #1
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2, !3}
!llvm.ident = !{!10}
!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)
!1 = !DIFile(filename: "test.cpp", directory: "/")
!2 = !{i32 7, !"Dwarf Version", i32 5}
!3 = !{i32 2, !"Debug Info Version", i32 3}
!10 = !{!"clang version 19.0.0"}
!11 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !12, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, keyInstructions: true)
!12 = !DISubroutineType(types: !13)
!13 = !{}
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