19 lines
468 B
LLVM
19 lines
468 B
LLVM
; RUN: opt -S -bdce < %s | FileCheck %s
|
|
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
define void @PR34211(i16* %p) {
|
|
; CHECK-LABEL: @PR34211
|
|
%not_demanded_but_not_dead = load volatile i16, i16* %p
|
|
call void @no_side_effects_so_dead(i16 %not_demanded_but_not_dead)
|
|
ret void
|
|
|
|
; CHECK: %not_demanded_but_not_dead = load volatile i16, i16* %p
|
|
; CHECK-NEXT: ret void
|
|
}
|
|
|
|
declare void @no_side_effects_so_dead(i16) #0
|
|
|
|
attributes #0 = { nounwind readnone willreturn }
|
|
|