xref: /aosp_15_r20/external/llvm/test/CodeGen/PowerPC/rlwinm-zero-ext.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -O2 < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-n32:64"
3*9880d681SAndroid Build Coastguard Workertarget triple = "powerpc64le-unknown-linux-gnu"
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test1
6*9880d681SAndroid Build Coastguard Workerdefine i8 @test1(i32 %a) {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: rlwinm {{{[0-9]+}}}, {{[0-9]+}}, 0, 24, 27
9*9880d681SAndroid Build Coastguard Worker; CHECK: rlwinm. [[REG:[0-9]+]], {{[0-9]+}}, 0, 24, 27
10*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: cmplwi [[REG]], 0
11*9880d681SAndroid Build Coastguard Worker; CHECK: beq 0
12*9880d681SAndroid Build Coastguard Worker  %0 = and i32 %a, 240
13*9880d681SAndroid Build Coastguard Worker  %1 = icmp eq i32 %0, 0
14*9880d681SAndroid Build Coastguard Worker  br i1 %1, label %eq0, label %neq0
15*9880d681SAndroid Build Coastguard Workereq0:
16*9880d681SAndroid Build Coastguard Worker  ret i8 102
17*9880d681SAndroid Build Coastguard Workerneq0:
18*9880d681SAndroid Build Coastguard Worker  ret i8 116
19*9880d681SAndroid Build Coastguard Worker}
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test2
22*9880d681SAndroid Build Coastguard Workerdefine i8 @test2(i32 %a) {
23*9880d681SAndroid Build Coastguard Workerentry:
24*9880d681SAndroid Build Coastguard Worker; CHECK: rlwinm [[REG:[0-9]+]], {{[0-9]+}}, 0, 28, 23
25*9880d681SAndroid Build Coastguard Worker; CHECK: cmplwi [[REG]], 0
26*9880d681SAndroid Build Coastguard Worker; CHECK: beq 0
27*9880d681SAndroid Build Coastguard Worker  %0 = and i32 %a, -241
28*9880d681SAndroid Build Coastguard Worker  %1 = icmp eq i32 %0, 0
29*9880d681SAndroid Build Coastguard Worker  br i1 %1, label %eq0, label %neq0
30*9880d681SAndroid Build Coastguard Workereq0:
31*9880d681SAndroid Build Coastguard Worker  ret i8 102
32*9880d681SAndroid Build Coastguard Workerneq0:
33*9880d681SAndroid Build Coastguard Worker  ret i8 116
34*9880d681SAndroid Build Coastguard Worker}
35*9880d681SAndroid Build Coastguard Worker
36*9880d681SAndroid Build Coastguard Workerdeclare {i32, i1} @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
37*9880d681SAndroid Build Coastguard Worker
38*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: test3
39*9880d681SAndroid Build Coastguard Workerdefine i8 @test3(i32 %a, i32 %b) {
40*9880d681SAndroid Build Coastguard Workerentry:
41*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: rlwnm {{{[0-9]+}}}, {{[0-9]+}}, {{{[0-9]+}}}, 28, 31
42*9880d681SAndroid Build Coastguard Worker; CHECK: rlwnm. [[REG:[0-9]+]], {{[0-9]+}}, 4, 28, 31
43*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: cmplwi [[REG]], 0
44*9880d681SAndroid Build Coastguard Worker; CHECK: beq 0
45*9880d681SAndroid Build Coastguard Worker  %left = shl i32 %a, %b
46*9880d681SAndroid Build Coastguard Worker  %res = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 32, i32 %b)
47*9880d681SAndroid Build Coastguard Worker  %right_amount = extractvalue {i32, i1} %res, 0
48*9880d681SAndroid Build Coastguard Worker  %right = lshr i32 %a, %right_amount
49*9880d681SAndroid Build Coastguard Worker  %0 = or i32 %left, %right
50*9880d681SAndroid Build Coastguard Worker  %1 = and i32 %0, 15
51*9880d681SAndroid Build Coastguard Worker  %2 = icmp eq i32 %1, 0
52*9880d681SAndroid Build Coastguard Worker  br i1 %2, label %eq0, label %neq0
53*9880d681SAndroid Build Coastguard Workereq0:
54*9880d681SAndroid Build Coastguard Worker  ret i8 102
55*9880d681SAndroid Build Coastguard Workerneq0:
56*9880d681SAndroid Build Coastguard Worker  ret i8 116
57*9880d681SAndroid Build Coastguard Worker}
58