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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK
4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-SHIFT1
5 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-SHIFT2
7 ; Check AND of a variable.
8 ; - CHECK is for the main loop.
9 ; - CHECK-SHIFT1 makes sure that the negated shift count used by the second
11 ; tested in CHECK.
12 ; - CHECK-SHIFT2 makes sure that %b is shifted into the high part of the word
16 ; CHECK-LABEL: f1:
17 ; CHECK: sllg [[SHIFT:%r[1-9]+]], %r2, 3
18 ; CHECK: nill %r2, 65532
19 ; CHECK: l [[OLD:%r[0-9]+]], 0(%r2)
20 ; CHECK: [[LABEL:\.[^:]*]]:
21 ; CHECK: rll [[ROT:%r[0-9]+]], [[OLD]], 0([[SHIFT]])
22 ; CHECK: nr [[ROT]], %r3
23 ; CHECK: rll [[NEW:%r[0-9]+]], [[ROT]], 0({{%r[1-9]+}})
24 ; CHECK: cs [[OLD]], [[NEW]], 0(%r2)
25 ; CHECK: jl [[LABEL]]
26 ; CHECK: rll %r2, [[OLD]], 16([[SHIFT]])
27 ; CHECK: br %r14
29 ; CHECK-SHIFT1-LABEL: f1:
30 ; CHECK-SHIFT1: sllg [[SHIFT:%r[1-9]+]], %r2, 3
31 ; CHECK-SHIFT1: lcr [[NEGSHIFT:%r[1-9]+]], [[SHIFT]]
32 ; CHECK-SHIFT1: rll
33 ; CHECK-SHIFT1: rll {{%r[0-9]+}}, {{%r[0-9]+}}, 0([[NEGSHIFT]])
34 ; CHECK-SHIFT1: rll
35 ; CHECK-SHIFT1: br %r14
37 ; CHECK-SHIFT2-LABEL: f1:
38 ; CHECK-SHIFT2: sll %r3, 16
39 ; CHECK-SHIFT2: oill %r3, 65535
40 ; CHECK-SHIFT2: rll
41 ; CHECK-SHIFT2: nr {{%r[0-9]+}}, %r3
42 ; CHECK-SHIFT2: rll
43 ; CHECK-SHIFT2: rll
44 ; CHECK-SHIFT2: br %r14
49 ; Check the minimum signed value. We AND the rotated word with 0x8000ffff.
51 ; CHECK-LABEL: f2:
52 ; CHECK: sllg [[SHIFT:%r[1-9]+]], %r2, 3
53 ; CHECK: nill %r2, 65532
54 ; CHECK: l [[OLD:%r[0-9]+]], 0(%r2)
55 ; CHECK: [[LABEL:\.[^:]*]]:
56 ; CHECK: rll [[ROT:%r[0-9]+]], [[OLD]], 0([[SHIFT]])
57 ; CHECK: nilh [[ROT]], 32768
58 ; CHECK: rll [[NEW:%r[0-9]+]], [[ROT]], 0([[NEGSHIFT:%r[1-9]+]])
59 ; CHECK: cs [[OLD]], [[NEW]], 0(%r2)
60 ; CHECK: jl [[LABEL]]
61 ; CHECK: rll %r2, [[OLD]], 16([[SHIFT]])
62 ; CHECK: br %r14
64 ; CHECK-SHIFT1-LABEL: f2:
65 ; CHECK-SHIFT1: sllg [[SHIFT:%r[1-9]+]], %r2, 3
66 ; CHECK-SHIFT1: lcr [[NEGSHIFT:%r[1-9]+]], [[SHIFT]]
67 ; CHECK-SHIFT1: rll
68 ; CHECK-SHIFT1: rll {{%r[0-9]+}}, {{%r[0-9]+}}, 0([[NEGSHIFT]])
69 ; CHECK-SHIFT1: rll
70 ; CHECK-SHIFT1: br %r14
72 ; CHECK-SHIFT2-LABEL: f2:
73 ; CHECK-SHIFT2: br %r14
78 ; Check ANDs of -2 (-1 isn't useful). We AND the rotated word with 0xfffeffff.
80 ; CHECK-LABEL: f3:
81 ; CHECK: nilh [[ROT]], 65534
82 ; CHECK: br %r14
84 ; CHECK-SHIFT1-LABEL: f3:
85 ; CHECK-SHIFT1: br %r14
86 ; CHECK-SHIFT2-LABEL: f3:
87 ; CHECK-SHIFT2: br %r14
92 ; Check ANDs of 1. We AND the rotated word with 0x0001ffff.
94 ; CHECK-LABEL: f4:
95 ; CHECK: nilh [[ROT]], 1
96 ; CHECK: br %r14
98 ; CHECK-SHIFT1-LABEL: f4:
99 ; CHECK-SHIFT1: br %r14
100 ; CHECK-SHIFT2-LABEL: f4:
101 ; CHECK-SHIFT2: br %r14
106 ; Check the maximum signed value. We AND the rotated word with 0x7fffffff.
108 ; CHECK-LABEL: f5:
109 ; CHECK: nilh [[ROT]], 32767
110 ; CHECK: br %r14
112 ; CHECK-SHIFT1-LABEL: f5:
113 ; CHECK-SHIFT1: br %r14
114 ; CHECK-SHIFT2-LABEL: f5:
115 ; CHECK-SHIFT2: br %r14
120 ; Check ANDs of a large unsigned value. We AND the rotated word with
123 ; CHECK-LABEL: f6:
124 ; CHECK: nilh [[ROT]], 65533
125 ; CHECK: br %r14
127 ; CHECK-SHIFT1-LABEL: f6:
128 ; CHECK-SHIFT1: br %r14
129 ; CHECK-SHIFT2-LABEL: f6:
130 ; CHECK-SHIFT2: br %r14