2017-02-23 02:47:41 +08:00
|
|
|
# RUN: llc -mtriple=aarch64-linux-gnu -run-pass peephole-opt -o - %s | FileCheck %s
|
2016-04-21 16:54:08 +08:00
|
|
|
# CHECK: %1 = ANDWri {{.*}}
|
|
|
|
# CHECK-NEXT: %wzr = SUBSWri {{.*}}
|
|
|
|
--- |
|
|
|
|
define i32 @test01() nounwind {
|
|
|
|
entry:
|
|
|
|
%0 = select i1 true, i32 1, i32 0
|
|
|
|
%1 = and i32 %0, 65535
|
|
|
|
%2 = icmp ugt i32 %1, 0
|
|
|
|
br i1 %2, label %if.then, label %if.end
|
|
|
|
|
|
|
|
if.then: ; preds = %entry
|
|
|
|
ret i32 1
|
|
|
|
|
|
|
|
if.end: ; preds = %entry
|
|
|
|
ret i32 0
|
|
|
|
}
|
|
|
|
...
|
|
|
|
---
|
|
|
|
name: test01
|
|
|
|
registers:
|
|
|
|
- { id: 0, class: gpr32 }
|
|
|
|
- { id: 1, class: gpr32common }
|
|
|
|
body: |
|
|
|
|
bb.0.entry:
|
|
|
|
successors: %bb.2.if.end, %bb.1.if.then
|
|
|
|
|
|
|
|
%0 = MOVi32imm 1
|
|
|
|
%1 = ANDWri killed %1, 15
|
|
|
|
%wzr = SUBSWri killed %1, 0, 0, implicit-def %nzcv
|
|
|
|
Bcc 9, %bb.2.if.end, implicit %nzcv
|
|
|
|
|
|
|
|
bb.1.if.then:
|
|
|
|
%w0 = MOVi32imm 1
|
|
|
|
RET_ReallyLR implicit %w0
|
|
|
|
|
|
|
|
bb.2.if.end:
|
|
|
|
%w0 = MOVi32imm 0
|
|
|
|
RET_ReallyLR implicit %w0
|
|
|
|
|
|
|
|
...
|