Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/LoopUnroll/unroll-loop-invalidation.ll

@@ -1,107 +0,0 @@
-; This test exercises that we don't corrupt a loop-analysis when running loop
-; unrolling in a way that deletes a loop. To do that, we first ensure the
-; analysis is cached, then unroll the loop (deleting it) and make sure that the
-; next function doesn't get a cache "hit" for this stale analysis result.
-;
-; RUN: opt -S -passes='loop(require<access-info>),unroll,loop(print-access-info)' -debug-pass-manager < %s 2>&1 | FileCheck %s
-;
-; CHECK: Starting llvm::Function pass manager run.
-; CHECK: Running pass: FunctionToLoopPassAdaptor
-; CHECK: Running analysis: LoopAnalysis
-; CHECK: Running analysis: InnerAnalysisManagerProxy<
-; CHECK: Starting Loop pass manager run.
-; CHECK: Running pass: RequireAnalysisPass<{{.*}}LoopAccessAnalysis
-; CHECK: Running analysis: LoopAccessAnalysis on inner1.header
-; CHECK: Finished Loop pass manager run.
-; CHECK: Starting Loop pass manager run.
-; CHECK: Running pass: RequireAnalysisPass<{{.*}}LoopAccessAnalysis
-; CHECK: Running analysis: LoopAccessAnalysis on inner2.header
-; CHECK: Finished Loop pass manager run.
-; CHECK: Starting Loop pass manager run.
-; CHECK: Running pass: RequireAnalysisPass<{{.*}}LoopAccessAnalysis
-; CHECK: Running analysis: LoopAccessAnalysis on outer.header
-; CHECK: Finished Loop pass manager run.
-; CHECK: Running pass: LoopUnrollPass
-; CHECK: Clearing all analysis results for: inner2.header
-; CHECK: Clearing all analysis results for: outer.header
-; CHECK: Invalidating all non-preserved analyses for: test
-; CHECK: Invalidating all non-preserved analyses for: inner1.header
-; CHECK: Invalidating analysis: LoopAccessAnalysis on inner1.header
-; CHECK: Invalidating all non-preserved analyses for: inner1.header.1
-; CHECK-NOT: Invalidating analysis: LoopAccessAnalysis on inner1.header.1
-; CHECK: Running pass: FunctionToLoopPassAdaptor
-; CHECK: Starting Loop pass manager run.
-; CHECK: Running pass: LoopAccessInfoPrinterPass
-; CHECK: Running analysis: LoopAccessAnalysis on inner1.header
-; CHECK: Loop access info in function 'test':
-; CHECK:   inner1.header:
-; CHECK: Finished Loop pass manager run.
-; CHECK: Starting Loop pass manager run.
-; CHECK: Running pass: LoopAccessInfoPrinterPass
-; CHECK: Running analysis: LoopAccessAnalysis on inner1.header.1
-; CHECK: Loop access info in function 'test':
-; CHECK:   inner1.header.1:
-; CHECK: Finished Loop pass manager run.
-
-target triple = "x86_64-unknown-linux-gnu"
-
-define void @test(i32 %inner1.count) {
-; CHECK-LABEL: define void @test(
-bb:
-  br label %outer.ph
-
-outer.ph:
-  br label %outer.header
-
-outer.header:
-  %outer.i = phi i32 [ 0, %outer.ph ], [ %outer.i.next, %outer.latch ]
-  br label %inner1.ph
-
-inner1.ph:
-  br label %inner1.header
-
-inner1.header:
-  %inner1.i = phi i32 [ 0, %inner1.ph ], [ %inner1.i.next, %inner1.header ]
-  %inner1.i.next = add i32 %inner1.i, 1
-  %inner1.cond = icmp eq i32 %inner1.i, %inner1.count
-  br i1 %inner1.cond, label %inner1.exit, label %inner1.header
-; We should have two unrolled copies of this loop and nothing else.
-;
-; CHECK-NOT:     icmp eq
-; CHECK-NOT:     br i1
-; CHECK:         %[[COND1:.*]] = icmp eq i32 %{{.*}}, %inner1.count
-; CHECK:         br i1 %[[COND1]],
-; CHECK-NOT:     icmp eq
-; CHECK-NOT:     br i1
-; CHECK:         %[[COND2:.*]] = icmp eq i32 %{{.*}}, %inner1.count
-; CHECK:         br i1 %[[COND2]],
-; CHECK-NOT:     icmp eq
-; CHECK-NOT:     br i1
-
-
-inner1.exit:
-  br label %inner2.ph
-
-inner2.ph:
-  br label %inner2.header
-
-inner2.header:
-  %inner2.i = phi i32 [ 0, %inner2.ph ], [ %inner2.i.next, %inner2.header ]
-  %inner2.i.next = add i32 %inner2.i, 1
-  %inner2.cond = icmp eq i32 %inner2.i, 4
-  br i1 %inner2.cond, label %inner2.exit, label %inner2.header
-
-inner2.exit:
-  br label %outer.latch
-
-outer.latch:
-  %outer.i.next = add i32 %outer.i, 1
-  %outer.cond = icmp eq i32 %outer.i.next, 2
-  br i1 %outer.cond, label %outer.exit, label %outer.header
-
-outer.exit:
-  br label %exit
-
-exit:
-  ret void
-}