1 ; This test is essentially doing very basic things with the opt tool and the
2 ; new pass manager pipeline. It will be used to flesh out the feature
3 ; completeness of the opt tool when the new pass manager is engaged. The tests
4 ; may not be useful once it becomes the default or may get spread out into other
5 ; files, but for now this is just going to step the new process through its
8 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
9 ; RUN: -passes=no-op-module %s 2>&1 \
10 ; RUN: | FileCheck %s --check-prefix=CHECK-MODULE-PASS
11 ; CHECK-MODULE-PASS: Starting pass manager
12 ; CHECK-MODULE-PASS-NEXT: Running pass: NoOpModulePass
13 ; CHECK-MODULE-PASS-NEXT: Finished pass manager
15 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
16 ; RUN: -passes=no-op-cgscc %s 2>&1 \
17 ; RUN: | FileCheck %s --check-prefix=CHECK-CGSCC-PASS
18 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
19 ; RUN: -passes='cgscc(no-op-cgscc)' %s 2>&1 \
20 ; RUN: | FileCheck %s --check-prefix=CHECK-CGSCC-PASS
21 ; CHECK-CGSCC-PASS: Starting pass manager
22 ; CHECK-CGSCC-PASS-NEXT: Running pass: ModuleToPostOrderCGSCCPassAdaptor
23 ; CHECK-CGSCC-PASS-NEXT: Running analysis: CGSCCAnalysisManagerModuleProxy
24 ; CHECK-CGSCC-PASS-NEXT: Running analysis: Lazy CallGraph Analysis
25 ; CHECK-CGSCC-PASS-NEXT: Starting pass manager
26 ; CHECK-CGSCC-PASS-NEXT: Running pass: NoOpCGSCCPass
27 ; CHECK-CGSCC-PASS-NEXT: Finished pass manager
28 ; CHECK-CGSCC-PASS-NEXT: Finished pass manager
30 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
31 ; RUN: -passes=no-op-function %s 2>&1 \
32 ; RUN: | FileCheck %s --check-prefix=CHECK-FUNCTION-PASS
33 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
34 ; RUN: -passes='function(no-op-function)' %s 2>&1 \
35 ; RUN: | FileCheck %s --check-prefix=CHECK-FUNCTION-PASS
36 ; CHECK-FUNCTION-PASS: Starting pass manager
37 ; CHECK-FUNCTION-PASS-NEXT: Running pass: ModuleToFunctionPassAdaptor
38 ; CHECK-FUNCTION-PASS-NEXT: Running analysis: FunctionAnalysisManagerModuleProxy
39 ; CHECK-FUNCTION-PASS-NEXT: Starting pass manager
40 ; CHECK-FUNCTION-PASS-NEXT: Running pass: NoOpFunctionPass
41 ; CHECK-FUNCTION-PASS-NEXT: Finished pass manager
42 ; CHECK-FUNCTION-PASS-NEXT: Finished pass manager
44 ; RUN: opt -disable-output -debug-pass-manager -passes=print %s 2>&1 \
45 ; RUN: | FileCheck %s --check-prefix=CHECK-MODULE-PRINT
46 ; CHECK-MODULE-PRINT: Starting pass manager
47 ; CHECK-MODULE-PRINT: Running pass: VerifierPass
48 ; CHECK-MODULE-PRINT: Running pass: PrintModulePass
49 ; CHECK-MODULE-PRINT: ModuleID
50 ; CHECK-MODULE-PRINT: define void @foo()
51 ; CHECK-MODULE-PRINT: Running pass: VerifierPass
52 ; CHECK-MODULE-PRINT: Finished pass manager
54 ; RUN: opt -disable-output -debug-pass-manager -disable-verify -passes='print,verify' %s 2>&1 \
55 ; RUN: | FileCheck %s --check-prefix=CHECK-MODULE-VERIFY
56 ; CHECK-MODULE-VERIFY: Starting pass manager
57 ; CHECK-MODULE-VERIFY: Running pass: PrintModulePass
58 ; CHECK-MODULE-VERIFY: ModuleID
59 ; CHECK-MODULE-VERIFY: define void @foo()
60 ; CHECK-MODULE-VERIFY: Running pass: VerifierPass
61 ; CHECK-MODULE-VERIFY: Finished pass manager
63 ; RUN: opt -disable-output -debug-pass-manager -passes='function(print)' %s 2>&1 \
64 ; RUN: | FileCheck %s --check-prefix=CHECK-FUNCTION-PRINT
65 ; CHECK-FUNCTION-PRINT: Starting pass manager
66 ; CHECK-FUNCTION-PRINT: Running pass: VerifierPass
67 ; CHECK-FUNCTION-PRINT: Running pass: ModuleToFunctionPassAdaptor
68 ; CHECK-FUNCTION-PRINT: Running analysis: FunctionAnalysisManagerModuleProxy
69 ; CHECK-FUNCTION-PRINT: Starting pass manager
70 ; CHECK-FUNCTION-PRINT: Running pass: PrintFunctionPass
71 ; CHECK-FUNCTION-PRINT-NOT: ModuleID
72 ; CHECK-FUNCTION-PRINT: define void @foo()
73 ; CHECK-FUNCTION-PRINT: Finished pass manager
74 ; CHECK-FUNCTION-PRINT: Running pass: VerifierPass
75 ; CHECK-FUNCTION-PRINT: Finished pass manager
77 ; RUN: opt -disable-output -debug-pass-manager -disable-verify -passes='function(print,verify)' %s 2>&1 \
78 ; RUN: | FileCheck %s --check-prefix=CHECK-FUNCTION-VERIFY
79 ; CHECK-FUNCTION-VERIFY: Starting pass manager
80 ; CHECK-FUNCTION-VERIFY: Starting pass manager
81 ; CHECK-FUNCTION-VERIFY: Running pass: PrintFunctionPass
82 ; CHECK-FUNCTION-VERIFY-NOT: ModuleID
83 ; CHECK-FUNCTION-VERIFY: define void @foo()
84 ; CHECK-FUNCTION-VERIFY: Running pass: VerifierPass
85 ; CHECK-FUNCTION-VERIFY: Finished pass manager
86 ; CHECK-FUNCTION-VERIFY: Finished pass manager
88 ; RUN: opt -S -o - -passes='no-op-module,no-op-module' %s \
89 ; RUN: | FileCheck %s --check-prefix=CHECK-NOOP
90 ; CHECK-NOOP: define void @foo() {
91 ; CHECK-NOOP: ret void
94 ; Round trip through bitcode.
95 ; RUN: opt -f -o - -passes='no-op-module,no-op-module' %s \
97 ; RUN: | FileCheck %s --check-prefix=CHECK-NOOP
99 ; RUN: opt -disable-output -debug-pass-manager -verify-each -passes='no-op-module,function(no-op-function)' %s 2>&1 \
100 ; RUN: | FileCheck %s --check-prefix=CHECK-VERIFY-EACH
101 ; CHECK-VERIFY-EACH: Starting pass manager
102 ; CHECK-VERIFY-EACH: Running pass: VerifierPass
103 ; CHECK-VERIFY-EACH: Running pass: NoOpModulePass
104 ; CHECK-VERIFY-EACH: Running pass: VerifierPass
105 ; CHECK-VERIFY-EACH: Starting pass manager
106 ; CHECK-VERIFY-EACH: Running pass: NoOpFunctionPass
107 ; CHECK-VERIFY-EACH: Running pass: VerifierPass
108 ; CHECK-VERIFY-EACH: Finished pass manager
109 ; CHECK-VERIFY-EACH: Running pass: VerifierPass
110 ; CHECK-VERIFY-EACH: Finished pass manager
112 ; RUN: opt -disable-output -debug-pass-manager -disable-verify -passes='no-op-module,function(no-op-function)' %s 2>&1 \
113 ; RUN: | FileCheck %s --check-prefix=CHECK-NO-VERIFY
114 ; CHECK-NO-VERIFY: Starting pass manager
115 ; CHECK-NO-VERIFY-NOT: VerifierPass
116 ; CHECK-NO-VERIFY: Running pass: NoOpModulePass
117 ; CHECK-NO-VERIFY-NOT: VerifierPass
118 ; CHECK-NO-VERIFY: Starting pass manager
119 ; CHECK-NO-VERIFY: Running pass: NoOpFunctionPass
120 ; CHECK-NO-VERIFY-NOT: VerifierPass
121 ; CHECK-NO-VERIFY: Finished pass manager
122 ; CHECK-NO-VERIFY-NOT: VerifierPass
123 ; CHECK-NO-VERIFY: Finished pass manager
125 ; RUN: opt -disable-output -debug-pass-manager \
126 ; RUN: -passes='require<no-op-module>,cgscc(require<no-op-cgscc>,function(require<no-op-function>))' %s 2>&1 \
127 ; RUN: | FileCheck %s --check-prefix=CHECK-ANALYSES
128 ; CHECK-ANALYSES: Starting pass manager
129 ; CHECK-ANALYSES: Running pass: RequireAnalysisPass
130 ; CHECK-ANALYSES: Running analysis: NoOpModuleAnalysis
131 ; CHECK-ANALYSES: Starting pass manager
132 ; CHECK-ANALYSES: Running pass: RequireAnalysisPass
133 ; CHECK-ANALYSES: Running analysis: NoOpCGSCCAnalysis
134 ; CHECK-ANALYSES: Starting pass manager
135 ; CHECK-ANALYSES: Running pass: RequireAnalysisPass
136 ; CHECK-ANALYSES: Running analysis: NoOpFunctionAnalysis
138 ; Make sure no-op passes that preserve all analyses don't even try to do any
139 ; analysis invalidation.
140 ; RUN: opt -disable-output -debug-pass-manager \
141 ; RUN: -passes='require<no-op-module>,cgscc(require<no-op-cgscc>,function(require<no-op-function>))' %s 2>&1 \
142 ; RUN: | FileCheck %s --check-prefix=CHECK-NO-OP-INVALIDATION
143 ; CHECK-NO-OP-INVALIDATION: Starting pass manager
144 ; CHECK-NO-OP-INVALIDATION-NOT: Invalidating all non-preserved analyses
146 ; RUN: opt -disable-output -debug-pass-manager \
147 ; RUN: -passes='require<no-op-module>,require<no-op-module>,require<no-op-module>' %s 2>&1 \
148 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-CACHE-MODULE-ANALYSIS-RESULTS
149 ; CHECK-DO-CACHE-MODULE-ANALYSIS-RESULTS: Starting pass manager
150 ; CHECK-DO-CACHE-MODULE-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
151 ; CHECK-DO-CACHE-MODULE-ANALYSIS-RESULTS: Running analysis: NoOpModuleAnalysis
152 ; CHECK-DO-CACHE-MODULE-ANALYSIS-RESULTS-NOT: Running analysis: NoOpModuleAnalysis
154 ; RUN: opt -disable-output -debug-pass-manager \
155 ; RUN: -passes='require<no-op-module>,invalidate<no-op-module>,require<no-op-module>' %s 2>&1 \
156 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS
157 ; CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS: Starting pass manager
158 ; CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
159 ; CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS: Running analysis: NoOpModuleAnalysis
160 ; CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS: Invalidating analysis: NoOpModuleAnalysis
161 ; CHECK-DO-INVALIDATE-MODULE-ANALYSIS-RESULTS: Running analysis: NoOpModuleAnalysis
163 ; RUN: opt -disable-output -debug-pass-manager \
164 ; RUN: -passes='cgscc(require<no-op-cgscc>,require<no-op-cgscc>,require<no-op-cgscc>)' %s 2>&1 \
165 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-CACHE-CGSCC-ANALYSIS-RESULTS
166 ; CHECK-DO-CACHE-CGSCC-ANALYSIS-RESULTS: Starting pass manager
167 ; CHECK-DO-CACHE-CGSCC-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
168 ; CHECK-DO-CACHE-CGSCC-ANALYSIS-RESULTS: Running analysis: NoOpCGSCCAnalysis
169 ; CHECK-DO-CACHE-CGSCC-ANALYSIS-RESULTS-NOT: Running analysis: NoOpCGSCCAnalysis
171 ; RUN: opt -disable-output -debug-pass-manager \
172 ; RUN: -passes='cgscc(require<no-op-cgscc>,invalidate<no-op-cgscc>,require<no-op-cgscc>)' %s 2>&1 \
173 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS
174 ; CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS: Starting pass manager
175 ; CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
176 ; CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS: Running analysis: NoOpCGSCCAnalysis
177 ; CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS: Invalidating analysis: NoOpCGSCCAnalysis
178 ; CHECK-DO-INVALIDATE-CGSCC-ANALYSIS-RESULTS: Running analysis: NoOpCGSCCAnalysis
180 ; RUN: opt -disable-output -debug-pass-manager \
181 ; RUN: -passes='function(require<no-op-function>,require<no-op-function>,require<no-op-function>)' %s 2>&1 \
182 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-CACHE-FUNCTION-ANALYSIS-RESULTS
183 ; CHECK-DO-CACHE-FUNCTION-ANALYSIS-RESULTS: Starting pass manager
184 ; CHECK-DO-CACHE-FUNCTION-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
185 ; CHECK-DO-CACHE-FUNCTION-ANALYSIS-RESULTS: Running analysis: NoOpFunctionAnalysis
186 ; CHECK-DO-CACHE-FUNCTION-ANALYSIS-RESULTS-NOT: Running analysis: NoOpFunctionAnalysis
188 ; RUN: opt -disable-output -debug-pass-manager \
189 ; RUN: -passes='function(require<no-op-function>,invalidate<no-op-function>,require<no-op-function>)' %s 2>&1 \
190 ; RUN: | FileCheck %s --check-prefix=CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS
191 ; CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS: Starting pass manager
192 ; CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS: Running pass: RequireAnalysisPass
193 ; CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS: Running analysis: NoOpFunctionAnalysis
194 ; CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS: Invalidating analysis: NoOpFunctionAnalysis
195 ; CHECK-DO-INVALIDATE-FUNCTION-ANALYSIS-RESULTS: Running analysis: NoOpFunctionAnalysis
197 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
198 ; RUN: -passes='require<no-op-module>,module(require<no-op-module>,function(require<no-op-function>,invalidate<all>,require<no-op-function>),require<no-op-module>),require<no-op-module>' %s 2>&1 \
199 ; RUN: | FileCheck %s --check-prefix=CHECK-INVALIDATE-ALL
200 ; CHECK-INVALIDATE-ALL: Starting pass manager
201 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
202 ; CHECK-INVALIDATE-ALL: Running analysis: NoOpModuleAnalysis
203 ; CHECK-INVALIDATE-ALL: Starting pass manager
204 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
205 ; CHECK-INVALIDATE-ALL-NOT: Running analysis: NoOpModuleAnalysis
206 ; CHECK-INVALIDATE-ALL: Starting pass manager
207 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
208 ; CHECK-INVALIDATE-ALL: Running analysis: NoOpFunctionAnalysis
209 ; CHECK-INVALIDATE-ALL: Running pass: InvalidateAllAnalysesPass
210 ; CHECK-INVALIDATE-ALL: Invalidating all non-preserved analyses
211 ; CHECK-INVALIDATE-ALL: Invalidating analysis: NoOpFunctionAnalysis
212 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
213 ; CHECK-INVALIDATE-ALL: Running analysis: NoOpFunctionAnalysis
214 ; CHECK-INVALIDATE-ALL: Finished pass manager
215 ; CHECK-INVALIDATE-ALL: Invalidating all non-preserved analyses
216 ; CHECK-INVALIDATE-ALL-NOT: Running analysis: NoOpFunctionAnalysis
217 ; CHECK-INVALIDATE-ALL: Invalidating all non-preserved analyses
218 ; CHECK-INVALIDATE-ALL: Invalidating analysis: NoOpModuleAnalysis
219 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
220 ; CHECK-INVALIDATE-ALL: Running analysis: NoOpModuleAnalysis
221 ; CHECK-INVALIDATE-ALL: Finished pass manager
222 ; CHECK-INVALIDATE-ALL: Invalidating all non-preserved analyses
223 ; CHECK-INVALIDATE-ALL-NOT: Invalidating analysis: NoOpModuleAnalysis
224 ; CHECK-INVALIDATE-ALL: Running pass: RequireAnalysisPass
225 ; CHECK-INVALIDATE-ALL-NOT: Running analysis: NoOpModuleAnalysis
226 ; CHECK-INVALIDATE-ALL: Finished pass manager
228 ; RUN: opt -disable-output -disable-verify -debug-pass-manager \
229 ; RUN: -passes='require<no-op-module>,module(require<no-op-module>,cgscc(require<no-op-cgscc>,function(require<no-op-function>,invalidate<all>,require<no-op-function>),require<no-op-cgscc>),require<no-op-module>),require<no-op-module>' %s 2>&1 \
230 ; RUN: | FileCheck %s --check-prefix=CHECK-INVALIDATE-ALL-CG
231 ; CHECK-INVALIDATE-ALL-CG: Starting pass manager
232 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
233 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpModuleAnalysis
234 ; CHECK-INVALIDATE-ALL-CG: Starting pass manager
235 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
236 ; CHECK-INVALIDATE-ALL-CG-NOT: Running analysis: NoOpModuleAnalysis
237 ; CHECK-INVALIDATE-ALL-CG: Starting pass manager
238 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
239 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpCGSCCAnalysis
240 ; CHECK-INVALIDATE-ALL-CG: Starting pass manager
241 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
242 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpFunctionAnalysis
243 ; CHECK-INVALIDATE-ALL-CG: Running pass: InvalidateAllAnalysesPass
244 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
245 ; CHECK-INVALIDATE-ALL-CG: Invalidating analysis: NoOpFunctionAnalysis
246 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
247 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpFunctionAnalysis
248 ; CHECK-INVALIDATE-ALL-CG: Finished pass manager
249 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
250 ; CHECK-INVALIDATE-ALL-CG-NOT: Running analysis: NoOpFunctionAnalysis
251 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
252 ; CHECK-INVALIDATE-ALL-CG: Invalidating analysis: NoOpCGSCCAnalysis
253 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
254 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpCGSCCAnalysis
255 ; CHECK-INVALIDATE-ALL-CG: Finished pass manager
256 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
257 ; CHECK-INVALIDATE-ALL-CG-NOT: Invalidating analysis: NoOpCGSCCAnalysis
258 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
259 ; CHECK-INVALIDATE-ALL-CG: Invalidating analysis: NoOpModuleAnalysis
260 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
261 ; CHECK-INVALIDATE-ALL-CG: Running analysis: NoOpModuleAnalysis
262 ; CHECK-INVALIDATE-ALL-CG: Finished pass manager
263 ; CHECK-INVALIDATE-ALL-CG: Invalidating all non-preserved analyses
264 ; CHECK-INVALIDATE-ALL-CG-NOT: Invalidating analysis: NoOpModuleAnalysis
265 ; CHECK-INVALIDATE-ALL-CG: Running pass: RequireAnalysisPass
266 ; CHECK-INVALIDATE-ALL-CG-NOT: Running analysis: NoOpModuleAnalysis
267 ; CHECK-INVALIDATE-ALL-CG: Finished pass manager
269 ; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
270 ; RUN: -passes='require<targetlibinfo>,invalidate<all>,require<targetlibinfo>' \
271 ; RUN: | FileCheck %s --check-prefix=CHECK-TLI
272 ; CHECK-TLI: Starting pass manager
273 ; CHECK-TLI: Running pass: RequireAnalysisPass
274 ; CHECK-TLI: Running analysis: TargetLibraryAnalysis
275 ; CHECK-TLI: Running pass: InvalidateAllAnalysesPass
276 ; CHECK-TLI-NOT: Invalidating analysis: TargetLibraryAnalysis
277 ; CHECK-TLI: Running pass: RequireAnalysisPass
278 ; CHECK-TLI-NOT: Running analysis: TargetLibraryAnalysis
279 ; CHECK-TLI: Finished pass manager
281 ; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
282 ; RUN: -passes='require<targetir>,invalidate<all>,require<targetir>' \
283 ; RUN: | FileCheck %s --check-prefix=CHECK-TIRA
284 ; CHECK-TIRA: Starting pass manager
285 ; CHECK-TIRA: Running pass: RequireAnalysisPass
286 ; CHECK-TIRA: Running analysis: TargetIRAnalysis
287 ; CHECK-TIRA: Running pass: InvalidateAllAnalysesPass
288 ; CHECK-TIRA-NOT: Invalidating analysis: TargetIRAnalysis
289 ; CHECK-TIRA: Running pass: RequireAnalysisPass
290 ; CHECK-TIRA-NOT: Running analysis: TargetIRAnalysis
291 ; CHECK-TIRA: Finished pass manager
293 ; RUN: opt -disable-output -disable-verify -debug-pass-manager %s 2>&1 \
294 ; RUN: -passes='require<domtree>' \
295 ; RUN: | FileCheck %s --check-prefix=CHECK-DT
296 ; CHECK-DT: Starting pass manager
297 ; CHECK-DT: Running pass: RequireAnalysisPass
298 ; CHECK-DT: Running analysis: DominatorTreeAnalysis
299 ; CHECK-DT: Finished pass manager