1 ; Test 32-bit inequality comparisons that are really between a memory halfword
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
6 ; Check the low end of the 16-bit unsigned range, with zero extension.
7 define double @f1(double %a, double %b, i16 *%ptr) {
9 ; CHECK: clhhsi 0(%r2), 0
12 %val = load i16 , i16 *%ptr
13 %ext = zext i16 %val to i32
14 %cond = icmp ne i32 %ext, 0
15 %res = select i1 %cond, double %a, double %b
19 ; Check the high end of the 16-bit unsigned range, with zero extension.
20 define double @f2(double %a, double %b, i16 *%ptr) {
22 ; CHECK: clhhsi 0(%r2), 65535
25 %val = load i16 , i16 *%ptr
26 %ext = zext i16 %val to i32
27 %cond = icmp ne i32 %ext, 65535
28 %res = select i1 %cond, double %a, double %b
32 ; Check the next value up, with zero extension. The condition is always false.
33 define double @f3(double %a, double %b, i16 *%ptr) {
37 %val = load i16 , i16 *%ptr
38 %ext = zext i16 %val to i32
39 %cond = icmp ne i32 %ext, 65536
40 %res = select i1 %cond, double %a, double %b
44 ; Check comparisons with -1, with zero extension.
45 ; This condition is also always false.
46 define double @f4(double %a, double %b, i16 *%ptr) {
50 %val = load i16 , i16 *%ptr
51 %ext = zext i16 %val to i32
52 %cond = icmp ne i32 %ext, -1
53 %res = select i1 %cond, double %a, double %b
57 ; Check comparisons with 0, using sign extension.
58 define double @f5(double %a, double %b, i16 *%ptr) {
60 ; CHECK: clhhsi 0(%r2), 0
63 %val = load i16 , i16 *%ptr
64 %ext = sext i16 %val to i32
65 %cond = icmp ne i32 %ext, 0
66 %res = select i1 %cond, double %a, double %b
70 ; Check the high end of the signed 16-bit range, using sign extension.
71 define double @f6(double %a, double %b, i16 *%ptr) {
73 ; CHECK: clhhsi 0(%r2), 32767
76 %val = load i16 , i16 *%ptr
77 %ext = sext i16 %val to i32
78 %cond = icmp ne i32 %ext, 32767
79 %res = select i1 %cond, double %a, double %b
83 ; Check the next value up, using sign extension.
84 ; The condition is always false.
85 define double @f7(double %a, double %b, i16 *%ptr) {
89 %val = load i16 , i16 *%ptr
90 %ext = sext i16 %val to i32
91 %cond = icmp ne i32 %ext, 32768
92 %res = select i1 %cond, double %a, double %b
96 ; Check comparisons with -1, using sign extension.
97 define double @f8(double %a, double %b, i16 *%ptr) {
99 ; CHECK: clhhsi 0(%r2), 65535
102 %val = load i16 , i16 *%ptr
103 %ext = sext i16 %val to i32
104 %cond = icmp ne i32 %ext, -1
105 %res = select i1 %cond, double %a, double %b
109 ; Check the low end of the signed 16-bit range, using sign extension.
110 define double @f9(double %a, double %b, i16 *%ptr) {
112 ; CHECK: clhhsi 0(%r2), 32768
115 %val = load i16 , i16 *%ptr
116 %ext = sext i16 %val to i32
117 %cond = icmp ne i32 %ext, -32768
118 %res = select i1 %cond, double %a, double %b
122 ; Check the next value down, using sign extension.
123 ; The condition is always false.
124 define double @f10(double %a, double %b, i16 *%ptr) {
128 %val = load i16 , i16 *%ptr
129 %ext = sext i16 %val to i32
130 %cond = icmp ne i32 %ext, -32769
131 %res = select i1 %cond, double %a, double %b