1; RUN: llc %s --filetype=obj -o %t 2; RUN: llvm-objdump -d %t | FileCheck %s --check-prefixes=OBJ 3; RUN: llvm-dwarfdump --debug-line %t | FileCheck %s --check-prefixes=DBG 4; RUN: llc %s -o - | FileCheck %s --check-prefixes=ASM 5 6; OBJ: 1:{{.*}}nop 7 8;; prologue_end goes on start-of-loop, the call to @g. 9;; Address Line Column File ISA Discriminator OpIndex Flags 10; DBG: 0x0000000000000000 3 0 0 0 0 0 is_stmt 11; DBG: 0x0000000000000001 0 0 0 0 0 0 12; DBG: 0x0000000000000010 5 0 0 0 0 0 is_stmt prologue_end 13; DBG: 0x0000000000000017 5 0 0 0 0 0 is_stmt end_sequence 14 15; ASM: .loc 0 0 0 is_stmt 0 16; ASM-NEXT: .L{{.*}}: 17; ASM-NEXT: .p2align 4 18 19;; $ cat test.cpp 20;; void g(); 21;; void f() { 22;; [[clang::code_align(16)]] 23;; while (1) { g(); } 24;; } 25 26target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 27target triple = "x86_64-unknown-linux-gnu" 28 29define dso_local void @f() local_unnamed_addr !dbg !9 { 30entry: 31 br label %while.body, !dbg !12 32 33while.body: ; preds = %entry, %while.body 34 tail call void @g(), !dbg !12 35 br label %while.body, !dbg !12, !llvm.loop !13 36} 37 38declare !dbg !16 void @g() local_unnamed_addr 39 40!llvm.dbg.cu = !{!0} 41!llvm.module.flags = !{!2, !3} 42!llvm.ident = !{!8} 43 44!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 19.0.0git", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, nameTableKind: None) 45!1 = !DIFile(filename: "test.cpp", directory: "/") 46!2 = !{i32 7, !"Dwarf Version", i32 5} 47!3 = !{i32 2, !"Debug Info Version", i32 3} 48!8 = !{!"clang version 19.0.0git"} 49!9 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 3, type: !10, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0) 50!10 = !DISubroutineType(types: !11) 51!11 = !{} 52!12 = !DILocation(line: 5, scope: !9) 53!13 = distinct !{!13, !12, !12, !14, !15} 54!14 = !{!"llvm.loop.mustprogress"} 55!15 = !{!"llvm.loop.align", i32 16} 56!16 = !DISubprogram(name: "g", scope: !1, file: !1, line: 2, type: !10, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized) 57