1 ; Test ensuring debug intrinsics do not affect generated function prologue.
3 ; RUN: llc -O1 -mtriple=x86_64-unknown-unknown -o - %s | FileCheck %s
5 define i64 @fn1NoDebug(i64 %a) {
6 %call = call i64 @fn(i64 %a, i64 0)
10 ; CHECK-LABEL: fn1NoDebug
12 ; CHECK-NEXT: .cfi_def_cfa_offset 8
15 define i64 @fn1WithDebug(i64 %a) !dbg !4 {
16 %call = call i64 @fn(i64 %a, i64 0)
17 tail call void @llvm.dbg.value(metadata i64 %call, i64 0, metadata !5, metadata !6), !dbg !7
21 ; CHECK-LABEL: fn1WithDebug
23 ; CHECK-NEXT: .cfi_def_cfa_offset 8
26 %struct.Buffer = type { i8, [63 x i8] }
28 define void @fn2NoDebug(ptr byval(%struct.Buffer) align 64 %p1) {
32 ; CHECK-LABEL: fn2NoDebug
38 ; CHECK-NEXT: .cfi_def_cfa %rsp, 8
41 define void @fn2WithDebug(ptr byval(%struct.Buffer) align 64 %p1) !dbg !8 {
42 call void @llvm.dbg.declare(metadata ptr %p1, metadata !9, metadata !6), !dbg !10
46 ; CHECK-LABEL: fn2WithDebug
52 ; CHECK-NEXT: .cfi_def_cfa %rsp, 8
55 declare i64 @fn(i64, i64)
57 declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
58 declare void @llvm.dbg.declare(metadata, metadata, metadata)
61 !llvm.module.flags = !{!2,!3}
63 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0")
64 !1 = !DIFile(filename: "test.c", directory: "/")
65 !2 = !{i32 2, !"Dwarf Version", i32 4}
66 !3 = !{i32 2, !"Debug Info Version", i32 3}
67 !4 = distinct !DISubprogram(name: "withDebug", unit: !0)
68 !5 = !DILocalVariable(name: "w", scope: !4)
70 !7 = !DILocation(line: 210, column: 12, scope: !4)
71 !8 = distinct !DISubprogram(name: "withDebug", unit: !0)
72 !9 = !DILocalVariable(name: "w", scope: !8)
73 !10 = !DILocation(line: 210, column: 12, scope: !8)