llvm-project/llvm/test/Verifier/metadata-function-dbg.ll
Nikita Popov 41d5033eb1 [IR] Enable opaque pointers by default
This enabled opaque pointers by default in LLVM. The effect of this
is twofold:

* If IR that contains *neither* explicit ptr nor %T* types is passed
  to tools, we will now use opaque pointer mode, unless
  -opaque-pointers=0 has been explicitly passed.
* Users of LLVM as a library will now default to opaque pointers.
  It is possible to opt-out by calling setOpaquePointers(false) on
  LLVMContext.

A cmake option to toggle this default will not be provided. Frontends
or other tools that want to (temporarily) keep using typed pointers
should disable opaque pointers via LLVMContext.

Differential Revision: https://reviews.llvm.org/D126689
2022-06-02 09:40:56 +02:00

43 lines
1.2 KiB
LLVM

; RUN: llvm-as %s -disable-output 2>&1 | FileCheck %s
; CHECK: function declaration may only have a unique !dbg attachment
declare !dbg !4 void @f1()
; CHECK-NOT: function declaration may only have a unique !dbg attachment
declare !dbg !6 void @f5()
; CHECK: function must have a single !dbg attachment
define void @f2() !dbg !4 !dbg !4 {
unreachable
}
; CHECK: DISubprogram attached to more than one function
define void @f3() !dbg !4 {
unreachable
}
; CHECK: DISubprogram attached to more than one function
define void @f4() !dbg !4 {
unreachable
}
; CHECK-NOT: !dbg
; CHECK: function !dbg attachment must be a subprogram
; CHECK-NEXT: ptr @bar
; CHECK-NEXT: !{{[0-9]+}} = !{}
define void @bar() !dbg !3 {
unreachable
}
; CHECK: warning: ignoring invalid debug info
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"Debug Info Version", i32 3}
!llvm.dbg.cu = !{!1}
!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2, retainedTypes: !5)
!2 = !DIFile(filename: "t.c", directory: "/path/to/dir")
!3 = !{}
!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !2, unit: !1)
!5 = !{!6}
!6 = !DISubprogram(name: "f5", scope: !1, file: !2, unit: !1, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)