67 lines · plain
1; RUN: llc < %s -stop-before=finalize-isel -o - | FileCheck %s2 3source_filename = "foo.c"4target datalayout = "E-m:e-p:32:32-i64:64-n32"5target triple = "ppc32"6 7; Verify that, when handling split-up integers, the8; transferring of debug info takes the endianness9; into consideration.10;11; The fragment expression at offset 0 should correspond12; to the high part of the value on big-endian targets.13 14; This basis of this ll file was created by running:15; clang --target=powerpc -O1 -S -g -emit-llvm foo.c16;17; with foo.c being the program:18; unsigned long long foo(void);19; void bar() {20; volatile unsigned long long result = foo();21; }22;23; This file is a slight tweak of that output, with irrelevant24; lifetime intrinsics, metadata, and debug info being removed.25 26; CHECK: [[DL:![0-9]+]] = !DILocalVariable(name: "result"27;28; High 32 bits in R3, low 32 bits in R429; CHECK: %0:gprc = COPY $r330; CHECK: DBG_VALUE %0, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 0, 32)31; CHECK: %1:gprc = COPY $r432; CHECK: DBG_VALUE %1, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 32, 32)33define void @bar() local_unnamed_addr #0 !dbg !6 {34 %1 = alloca i64, align 835 %2 = tail call i64 @foo()36 tail call void @llvm.dbg.value(metadata i64 %2, metadata !10, metadata !DIExpression()), !dbg !1337 store volatile i64 %2, ptr %1, align 838 ret void39}40 41declare i64 @foo() local_unnamed_addr42 43; Function Attrs: nounwind readnone speculatable44declare void @llvm.dbg.value(metadata, metadata, metadata) #145 46attributes #0 = { nounwind }47attributes #1 = { nounwind readnone speculatable }48 49!llvm.dbg.cu = !{!0}50!llvm.module.flags = !{!3, !4}51!llvm.ident = !{!5}52 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: "/")55!2 = !{}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)61!8 = !{null}62!9 = !{!10}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)67