1; RUN: llc -verify-machineinstrs -O2 < %s | FileCheck %s
2target datalayout = "e-m:e-i64:64-n32:64"
3target triple = "powerpc64le-unknown-linux-gnu"
4
5; CHECK-LABEL: test1
6define i8 @test1(i32 %a) {
7entry:
8; CHECK-NOT: rlwinm {{{[0-9]+}}}, {{[0-9]+}}, 0, 24, 27
9; CHECK: andi. [[REG:[0-9]+]], {{[0-9]+}}, 240
10; CHECK-NOT: cmplwi [[REG]], 0
11; CHECK: beq 0
12  %0 = and i32 %a, 240
13  %1 = icmp eq i32 %0, 0
14  br i1 %1, label %eq0, label %neq0
15eq0:
16  ret i8 102
17neq0:
18  ret i8 116
19}
20
21; CHECK-LABEL: test2
22define i8 @test2(i32 %a) {
23entry:
24; CHECK: rlwinm [[REG:[0-9]+]], {{[0-9]+}}, 0, 28, 23
25; CHECK: cmplwi [[REG]], 0
26; CHECK: beq 0
27  %0 = and i32 %a, -241
28  %1 = icmp eq i32 %0, 0
29  br i1 %1, label %eq0, label %neq0
30eq0:
31  ret i8 102
32neq0:
33  ret i8 116
34}
35
36declare {i32, i1} @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
37
38; CHECK-LABEL: test3
39define i8 @test3(i32 %a, i32 %b) {
40entry:
41; CHECK-NOT: rlwnm {{{[0-9]+}}}, {{[0-9]+}}, {{{[0-9]+}}}, 28, 31
42; CHECK: rlwnm. [[REG:[0-9]+]], {{[0-9]+}}, 4, 28, 31
43; CHECK-NOT: cmplwi [[REG]], 0
44; CHECK: beq 0
45  %left = shl i32 %a, %b
46  %res = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 32, i32 %b)
47  %right_amount = extractvalue {i32, i1} %res, 0
48  %right = lshr i32 %a, %right_amount
49  %0 = or i32 %left, %right
50  %1 = and i32 %0, 15
51  %2 = icmp eq i32 %1, 0
52  br i1 %2, label %eq0, label %neq0
53eq0:
54  ret i8 102
55neq0:
56  ret i8 116
57}
58