1 ; RUN: llc -mtriple=x86_64-- -print-after=finalize-isel %s -o /dev/null 2>&1 | FileCheck %s
7 define void @test(i32 %x) nounwind {
9 switch i32 %x, label %sw.default [
16 i32 1134, label %sw.bb
17 i32 1140, label %sw.bb
31 ; Check if weights are correctly assigned to edges generated from switch
34 ; CHECK: bb.0{{[0-9a-zA-Z.]*}}:
35 ; %bb.0 to %bb.4: [0, 1133] (65 = 60 + 5)
36 ; %bb.0 to %bb.5: [1134, UINT32_MAX] (25 = 20 + 5)
37 ; CHECK: successors: %bb.4(0x5c71c71c), %bb.5(0x238e38e4)
39 ; CHECK: bb.4{{[0-9a-zA-Z.]*}}:
40 ; %bb.4 to %bb.1: [155, 159] (50)
41 ; %bb.4 to %bb.5: [0, 1133] - [155, 159] (15 = 10 + 5)
42 ; CHECK: successors: %bb.1(0x62762762), %bb.7(0x1d89d89e)
44 ; CHECK: bb.5{{[0-9a-zA-Z.]*}}:
45 ; %bb.5 to %bb.1: {1140} (10)
46 ; %bb.5 to %bb.6: [1134, UINT32_MAX] - {1140} (15 = 10 + 5)
47 ; CHECK: successors: %bb.1(0x33333333), %bb.6(0x4ccccccd)
49 ; CHECK: bb.6{{[0-9a-zA-Z.]*}}:
50 ; %bb.6 to %bb.1: {1134} (10)
51 ; %bb.6 to %bb.2: [1134, UINT32_MAX] - {1134, 1140} (5)
52 ; CHECK: successors: %bb.1(0x55555555), %bb.2(0x2aaaaaab)
57 define void @test2(i32 %x) nounwind {
60 ; In this switch statement, there is an edge from jump table to default
63 switch i32 %x, label %sw.default [
99 ; Check if weights are correctly assigned to edges generated from switch
102 ; CHECK: bb.0{{[0-9a-zA-Z.]*}}:
103 ; %bb.0 to %bb.6: {0} + [15, UINT32_MAX] (5)
104 ; %bb.0 to %bb.8: [1, 14] (jump table) (65 = 60 + 5)
105 ; CHECK: successors: %bb.6(0x09249249), %bb.8(0x76db6db7)
107 ; CHECK: bb.8{{[0-9a-zA-Z.]*}}:
108 ; %bb.8 to %bb.1: {1} (10)
109 ; %bb.8 to %bb.6: [2, 9] (5)
110 ; %bb.8 to %bb.2: {10} (10)
111 ; %bb.8 to %bb.3: {11} (10)
112 ; %bb.8 to %bb.4: {12} (10)
113 ; %bb.8 to %bb.5: {13, 14} (20)
114 ; CHECK: successors: %bb.1(0x13b13b14), %bb.6(0x09d89d8a), %bb.2(0x13b13b14), %bb.3(0x13b13b14), %bb.4(0x13b13b14), %bb.5(0x27627628)
119 define void @test3(i32 %x) nounwind {
122 ; In this switch statement, there is no edge from jump table to default
125 switch i32 %x, label %sw.default [
127 i32 11, label %sw.bb2
128 i32 12, label %sw.bb3
129 i32 13, label %sw.bb4
130 i32 14, label %sw.bb5
134 call void @foo(i32 0)
138 call void @foo(i32 2)
142 call void @foo(i32 3)
146 call void @foo(i32 4)
150 call void @foo(i32 5)
154 call void @foo(i32 1)
160 ; Check if weights are correctly assigned to edges generated from switch
163 ; CHECK: bb.0{{[0-9a-zA-Z.]*}}:
164 ; %bb.0 to %bb.6: [0, 9] + [15, UINT32_MAX] {10}
165 ; %bb.0 to %bb.8: [10, 14] (jump table) (50)
166 ; CHECK: successors: %bb.6(0x15555555), %bb.8(0x6aaaaaab)
168 ; CHECK: bb.8{{[0-9a-zA-Z.]*}}:
169 ; %bb.8 to %bb.1: {10} (10)
170 ; %bb.8 to %bb.2: {11} (10)
171 ; %bb.8 to %bb.3: {12} (10)
172 ; %bb.8 to %bb.4: {13} (10)
173 ; %bb.8 to %bb.5: {14} (10)
174 ; CHECK: successors: %bb.1(0x1999999a), %bb.2(0x1999999a), %bb.3(0x1999999a), %bb.4(0x1999999a), %bb.5(0x1999999a)
179 define void @test4(i32 %x) nounwind {
182 ; In this switch statement, there is no edge from bit test to default basic
185 switch i32 %x, label %sw.default [
187 i32 111, label %sw.bb2
188 i32 112, label %sw.bb3
189 i32 113, label %sw.bb3
190 i32 114, label %sw.bb2
191 i32 115, label %sw.bb2
195 call void @foo(i32 0)
199 call void @foo(i32 2)
203 call void @foo(i32 3)
207 call void @foo(i32 1)
213 ; Check if weights are correctly assigned to edges generated from switch
216 ; CHECK: bb.0{{[0-9a-zA-Z.]*}}:
217 ; %bb.0 to %bb.6: [0, 110] + [116, UINT32_MAX] (20)
218 ; %bb.0 to %bb.7: [111, 115] (bit test) (50)
219 ; CHECK: successors: %bb.6(0x24924925), %bb.7(0x5b6db6db)
221 ; CHECK: bb.7{{[0-9a-zA-Z.]*}}:
222 ; %bb.7 to %bb.2: {111, 114, 115} (30)
223 ; %bb.7 to %bb.3: {112, 113} (20)
224 ; CHECK: successors: %bb.2(0x4ccccccd), %bb.3(0x33333333)
229 define void @test5(i32 %x) nounwind {
232 ; In this switch statement, there is an edge from jump table to default basic
235 switch i32 %x, label %sw.default [
237 i32 20, label %sw.bb2
238 i32 28, label %sw.bb3
239 i32 36, label %sw.bb4
240 i32 124, label %sw.bb5
244 call void @foo(i32 0)
248 call void @foo(i32 1)
252 call void @foo(i32 2)
256 call void @foo(i32 3)
260 call void @foo(i32 4)
264 call void @foo(i32 5)
270 ; Check if weights are correctly assigned to edges generated from switch
273 ; CHECK: bb.0{{[0-9a-zA-Z.]*}}:
274 ; %bb.0 to %bb.6: [10, UINT32_MAX] (15)
275 ; %bb.0 to %bb.8: [4, 20, 28, 36] (jump table) (45)
276 ; CHECK: successors: %bb.8(0x20000001), %bb.9(0x5fffffff)
279 !1 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}
280 !2 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}
281 !3 = !{!"branch_weights", i32 10, i32 10, i32 10, i32 10, i32 10, i32 10, i32 10}