21 lines
406 B
LLVM
21 lines
406 B
LLVM
|
; RUN: llc < %s -march=x86-64 | grep testb
|
||
|
|
|
||
|
|
; Make sure dagcombine doesn't eliminate the comparison due
|
||
|
|
; to an off-by-one bug with ComputeMaskedBits information.
|
||
|
|
|
||
|
|
declare void @qux()
|
||
|
|
|
||
|
|
define void @foo(i32 %a) {
|
||
|
|
%t0 = lshr i32 %a, 23
|
||
|
|
br label %next
|
||
|
|
next:
|
||
|
|
%t1 = and i32 %t0, 256
|
||
|
|
%t2 = icmp eq i32 %t1, 0
|
||
|
|
br i1 %t2, label %true, label %false
|
||
|
|
true:
|
||
|
|
call void @qux()
|
||
|
|
ret void
|
||
|
|
false:
|
||
|
|
ret void
|
||
|
|
}
|