llvm-project/llvm/test/Transforms/Sink/badloadsink.ll

19 lines
411 B
LLVM

; RUN: opt < %s -basicaa -sink -S | FileCheck %s
declare void @foo(i64 *)
define i64 @sinkload(i1 %cmp) {
; CHECK-LABEL: @sinkload
top:
%a = alloca i64
; CHECK: call void @foo(i64* %a)
; CHECK-NEXT: %x = load i64, i64* %a
call void @foo(i64* %a)
%x = load i64, i64* %a
br i1 %cmp, label %A, label %B
A:
store i64 0, i64 *%a
br label %B
B:
; CHECK-NOT: load i64, i64 *%a
ret i64 %x
}