67 lines
2.5 KiB
LLVM
67 lines
2.5 KiB
LLVM
; RUN: llc < %s -stop-before=finalize-isel -o - | FileCheck %s
|
|
|
|
source_filename = "foo.c"
|
|
target datalayout = "E-m:e-p:32:32-i64:64-n32"
|
|
target triple = "ppc32"
|
|
|
|
; Verify that, when handling split-up integers, the
|
|
; transferring of debug info takes the endianness
|
|
; into consideration.
|
|
;
|
|
; The fragment expression at offset 0 should correspond
|
|
; to the high part of the value on big-endian targets.
|
|
|
|
; This basis of this ll file was created by running:
|
|
; clang --target=powerpc -O1 -S -g -emit-llvm foo.c
|
|
;
|
|
; with foo.c being the program:
|
|
; unsigned long long foo(void);
|
|
; void bar() {
|
|
; volatile unsigned long long result = foo();
|
|
; }
|
|
;
|
|
; This file is a slight tweak of that output, with irrelevant
|
|
; lifetime intrinsics, metadata, and debug info being removed.
|
|
|
|
; CHECK: [[DL:![0-9]+]] = !DILocalVariable(name: "result"
|
|
;
|
|
; High 32 bits in R3, low 32 bits in R4
|
|
; CHECK: %0:gprc = COPY $r3
|
|
; CHECK: DBG_VALUE %0, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 0, 32)
|
|
; CHECK: %1:gprc = COPY $r4
|
|
; CHECK: DBG_VALUE %1, $noreg, [[DL]], !DIExpression(DW_OP_LLVM_fragment, 32, 32)
|
|
define void @bar() local_unnamed_addr #0 !dbg !6 {
|
|
%1 = alloca i64, align 8
|
|
%2 = tail call i64 @foo()
|
|
tail call void @llvm.dbg.value(metadata i64 %2, metadata !10, metadata !DIExpression()), !dbg !13
|
|
store volatile i64 %2, i64* %1, align 8
|
|
ret void
|
|
}
|
|
|
|
declare i64 @foo() local_unnamed_addr
|
|
|
|
; Function Attrs: nounwind readnone speculatable
|
|
declare void @llvm.dbg.value(metadata, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind }
|
|
attributes #1 = { nounwind readnone speculatable }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!3, !4}
|
|
!llvm.ident = !{!5}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
|
|
!1 = !DIFile(filename: "foo.c", directory: "/")
|
|
!2 = !{}
|
|
!3 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!4 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!5 = !{!"clang version 6.0.0"}
|
|
!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)
|
|
!7 = !DISubroutineType(types: !8)
|
|
!8 = !{null}
|
|
!9 = !{!10}
|
|
!10 = !DILocalVariable(name: "result", scope: !6, file: !1, line: 3, type: !11)
|
|
!11 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !12)
|
|
!12 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
|
|
!13 = !DILocation(line: 3, column: 31, scope: !6)
|