mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-09 15:57:28 +00:00
6a402dc952
a smaller encoding. These kinds of patterns are very frequent in sqlite3, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79439 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
426 B
LLVM
21 lines
426 B
LLVM
; RUN: llvm-as < %s | llc -march=x86-64 | grep {testb \[$\]1,}
|
|
|
|
; 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
|
|
}
|