1 ; Test 64-bit floating-point comparison.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
7 ; Check comparison with registers.
8 define i64 @f1(i64 %a, i64 %b, double %f1, double %f2) {
10 ; CHECK: cdbr %f0, %f2
14 %cond = fcmp oeq double %f1, %f2
15 %res = select i1 %cond, i64 %a, i64 %b
19 ; Check the low end of the CDB range.
20 define i64 @f2(i64 %a, i64 %b, double %f1, double *%ptr) {
22 ; CHECK: cdb %f0, 0(%r4)
26 %f2 = load double *%ptr
27 %cond = fcmp oeq double %f1, %f2
28 %res = select i1 %cond, i64 %a, i64 %b
32 ; Check the high end of the aligned CDB range.
33 define i64 @f3(i64 %a, i64 %b, double %f1, double *%base) {
35 ; CHECK: cdb %f0, 4088(%r4)
39 %ptr = getelementptr double *%base, i64 511
40 %f2 = load double *%ptr
41 %cond = fcmp oeq double %f1, %f2
42 %res = select i1 %cond, i64 %a, i64 %b
46 ; Check the next doubleword up, which needs separate address logic.
47 ; Other sequences besides this one would be OK.
48 define i64 @f4(i64 %a, i64 %b, double %f1, double *%base) {
50 ; CHECK: aghi %r4, 4096
51 ; CHECK: cdb %f0, 0(%r4)
55 %ptr = getelementptr double *%base, i64 512
56 %f2 = load double *%ptr
57 %cond = fcmp oeq double %f1, %f2
58 %res = select i1 %cond, i64 %a, i64 %b
62 ; Check negative displacements, which also need separate address logic.
63 define i64 @f5(i64 %a, i64 %b, double %f1, double *%base) {
66 ; CHECK: cdb %f0, 0(%r4)
70 %ptr = getelementptr double *%base, i64 -1
71 %f2 = load double *%ptr
72 %cond = fcmp oeq double %f1, %f2
73 %res = select i1 %cond, i64 %a, i64 %b
77 ; Check that CDB allows indices.
78 define i64 @f6(i64 %a, i64 %b, double %f1, double *%base, i64 %index) {
80 ; CHECK: sllg %r1, %r5, 3
81 ; CHECK: cdb %f0, 800(%r1,%r4)
85 %ptr1 = getelementptr double *%base, i64 %index
86 %ptr2 = getelementptr double *%ptr1, i64 100
87 %f2 = load double *%ptr2
88 %cond = fcmp oeq double %f1, %f2
89 %res = select i1 %cond, i64 %a, i64 %b
93 ; Check that comparisons of spilled values can use CDB rather than CDBR.
94 define double @f7(double *%ptr0) {
96 ; CHECK: brasl %r14, foo@PLT
97 ; CHECK: cdb {{%f[0-9]+}}, 160(%r15)
99 %ptr1 = getelementptr double *%ptr0, i64 2
100 %ptr2 = getelementptr double *%ptr0, i64 4
101 %ptr3 = getelementptr double *%ptr0, i64 6
102 %ptr4 = getelementptr double *%ptr0, i64 8
103 %ptr5 = getelementptr double *%ptr0, i64 10
104 %ptr6 = getelementptr double *%ptr0, i64 12
105 %ptr7 = getelementptr double *%ptr0, i64 14
106 %ptr8 = getelementptr double *%ptr0, i64 16
107 %ptr9 = getelementptr double *%ptr0, i64 18
108 %ptr10 = getelementptr double *%ptr0, i64 20
110 %val0 = load double *%ptr0
111 %val1 = load double *%ptr1
112 %val2 = load double *%ptr2
113 %val3 = load double *%ptr3
114 %val4 = load double *%ptr4
115 %val5 = load double *%ptr5
116 %val6 = load double *%ptr6
117 %val7 = load double *%ptr7
118 %val8 = load double *%ptr8
119 %val9 = load double *%ptr9
120 %val10 = load double *%ptr10
122 %ret = call double @foo()
124 %cmp0 = fcmp olt double %ret, %val0
125 %cmp1 = fcmp olt double %ret, %val1
126 %cmp2 = fcmp olt double %ret, %val2
127 %cmp3 = fcmp olt double %ret, %val3
128 %cmp4 = fcmp olt double %ret, %val4
129 %cmp5 = fcmp olt double %ret, %val5
130 %cmp6 = fcmp olt double %ret, %val6
131 %cmp7 = fcmp olt double %ret, %val7
132 %cmp8 = fcmp olt double %ret, %val8
133 %cmp9 = fcmp olt double %ret, %val9
134 %cmp10 = fcmp olt double %ret, %val10
136 %sel0 = select i1 %cmp0, double %ret, double 0.0
137 %sel1 = select i1 %cmp1, double %sel0, double 1.0
138 %sel2 = select i1 %cmp2, double %sel1, double 2.0
139 %sel3 = select i1 %cmp3, double %sel2, double 3.0
140 %sel4 = select i1 %cmp4, double %sel3, double 4.0
141 %sel5 = select i1 %cmp5, double %sel4, double 5.0
142 %sel6 = select i1 %cmp6, double %sel5, double 6.0
143 %sel7 = select i1 %cmp7, double %sel6, double 7.0
144 %sel8 = select i1 %cmp8, double %sel7, double 8.0
145 %sel9 = select i1 %cmp9, double %sel8, double 9.0
146 %sel10 = select i1 %cmp10, double %sel9, double 10.0