1 ; RUN: llc < %s -stop-before=finalize-isel -o - | FileCheck %s
3 source_filename = "foo.c"
4 target datalayout = "E-m:e-p:32:32-i64:64-n32"
5 target triple = "ppc32"
7 ; Verify that, when handling split-up integers, the
8 ; transferring of debug info takes the endianness
11 ; The fragment expression at offset 0 should correspond
12 ; to the high part of the value on big-endian targets.
14 ; This basis of this ll file was created by running:
15 ; clang --target=powerpc -O1 -S -g -emit-llvm foo.c
17 ; with foo.c being the program:
18 ; unsigned long long foo(void);
20 ; volatile unsigned long long result = foo();
23 ; This file is a slight tweak of that output, with irrelevant
24 ; lifetime intrinsics, metadata, and debug info being removed.
26 ; CHECK: [[DL:![0-9]+]] = !DILocalVariable(name: "result"
28 ; High 32 bits in R3, low 32 bits in R4
29 ; CHECK: %0:gprc = COPY $r3
30 ; CHECK: DBG_VALUE %0, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 0, 32)
31 ; CHECK: %1:gprc = COPY $r4
32 ; CHECK: DBG_VALUE %1, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 32, 32)
33 define void @bar() local_unnamed_addr #0 !dbg !6 {
34 %1 = alloca i64, align 8
35 %2 = tail call i64 @foo()
36 tail call void @llvm.dbg.value(metadata i64 %2, metadata !10, metadata !DIExpression()), !dbg !13
37 store volatile i64 %2, i64* %1, align 8
41 declare i64 @foo() local_unnamed_addr
43 ; Function Attrs: nounwind readnone speculatable
44 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
46 attributes #0 = { nounwind }
47 attributes #1 = { nounwind readnone speculatable }
50 !llvm.module.flags = !{!3, !4}
53 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
54 !1 = !DIFile(filename: "foo.c", directory: "/")
56 !3 = !{i32 2, !"Dwarf Version", i32 4}
57 !4 = !{i32 2, !"Debug Info Version", i32 3}
58 !5 = !{!"clang version 6.0.0"}
59 !6 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0, retainedNodes: !9)
60 !7 = !DISubroutineType(types: !8)
63 !10 = !DILocalVariable(name: "result", scope: !6, file: !1, line: 3, type: !11)
64 !11 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !12)
65 !12 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
66 !13 = !DILocation(line: 3, column: 31, scope: !6)