6b6c3aaeac
They are currently implicit because TargetMachine::shouldAssumeDSOLocal implies dso_local. For such function declarations, clang -fno-pic emits the dso_local specifier. Adding explicit dso_local makes these tests align with the clang behavior and helps implementing an option to use GOT indirection when taking the address of a function symbol in -fno-pic (to avoid a canonical PLT entry (SHN_UNDEF with non-zero st_value)).
37 lines
898 B
LLVM
37 lines
898 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=x86_64-linux < %s | FileCheck %s
|
|
|
|
declare dso_local i8* @foo()
|
|
|
|
define dereferenceable(8) i8* @test1() nounwind {
|
|
; CHECK-LABEL: test1:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: jmp foo # TAILCALL
|
|
%ret = tail call i8* @foo()
|
|
ret i8* %ret
|
|
}
|
|
|
|
define i8* @test2() nounwind {
|
|
; CHECK-LABEL: test2:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: jmp foo # TAILCALL
|
|
%ret = tail call dereferenceable(8) i8* @foo()
|
|
ret i8* %ret
|
|
}
|
|
|
|
define dereferenceable_or_null(8) i8* @test3() nounwind {
|
|
; CHECK-LABEL: test3:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: jmp foo # TAILCALL
|
|
%ret = tail call i8* @foo()
|
|
ret i8* %ret
|
|
}
|
|
|
|
define i8* @test4() nounwind {
|
|
; CHECK-LABEL: test4:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: jmp foo # TAILCALL
|
|
%ret = tail call dereferenceable_or_null(8) i8* @foo()
|
|
ret i8* %ret
|
|
}
|