Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Other/pass-pipelines.ll

@@ -1,101 +0,0 @@
-; Test the particular pass pipelines have the expected structure. This is
-; particularly important in order to check that the implicit scheduling of the
-; legacy pass manager doesn't introduce unexpected structural changes in the
-; pass pipeline.
-;
-; RUN: opt -disable-output -disable-verify -debug-pass=Structure \
-; RUN:     -O2 %s 2>&1 \
-; RUN:     | FileCheck %s --check-prefix=CHECK-O2
-;
-; In the first pipeline there should just be a function pass manager, no other
-; pass managers.
-; CHECK-O2: Pass Arguments:
-; CHECK-O2-NOT: Manager
-; CHECK-O2: FunctionPass Manager
-; CHECK-O2-NOT: Manager
-;
-; CHECK-O2: Pass Arguments:
-; CHECK-O2: ModulePass Manager
-; CHECK-O2-NOT: Manager
-; First function pass pipeline just does early opts.
-; CHECK-O2: FunctionPass Manager
-; CHECK-O2-NOT: Manager
-; FIXME: It's a bit odd to do dead arg elim in the middle of early opts...
-; CHECK-O2: Dead Argument Elimination
-; CHECK-O2-NEXT: FunctionPass Manager
-; CHECK-O2-NOT: Manager
-; Very carefully assert the CGSCC pass pipeline as it is fragile and unusually
-; susceptible to phase ordering issues.
-; CHECK-O2: CallGraph Construction
-; CHECK-O2-NEXT: Globals Alias Analysis
-; CHECK-O2-NEXT: Call Graph SCC Pass Manager
-; CHECK-O2-NEXT: Remove unused exception handling info
-; CHECK-O2-NEXT: Function Integration/Inlining
-; CHECK-O2-NEXT: Deduce function attributes
-; Next up is the main function pass pipeline. It shouldn't be split up and
-; should contain the main loop pass pipeline as well.
-; CHECK-O2-NEXT: FunctionPass Manager
-; CHECK-O2-NOT: Manager
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NOT: Manager
-; FIXME: We shouldn't be pulling out to simplify-cfg and instcombine and
-; causing new loop pass managers.
-; CHECK-O2: Simplify the CFG
-; CHECK-O2-NOT: Manager
-; CHECK-O2: Combine redundant instructions
-; CHECK-O2-NOT: Manager
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NOT: Manager
-; FIXME: It isn't clear that we need yet another loop pass pipeline
-; and run of LICM here.
-; CHECK-O2-NOT: Manager
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NEXT: Loop Invariant Code Motion
-; CHECK-O2-NOT: Manager
-; Next we break out of the main Function passes inside the CGSCC pipeline with
-; a barrier pass.
-; CHECK-O2: A No-Op Barrier Pass
-; CHECK-O2-NEXT: Eliminate Available Externally
-; Inferring function attribute should be right after the CGSCC pipeline, before
-; any other optimizations/analyses.
-; CHECK-O2-NEXT: CallGraph
-; CHECK-O2-NEXT: Deduce function attributes in RPO
-; CHECK-O2-NOT: Manager
-; Reduce the size of the IR ASAP after the inliner.
-; CHECK-O2-NEXT: Global Variable Optimizer
-; CHECK-O2: Dead Global Elimination
-; Next is the late function pass pipeline.
-; CHECK-O2: FunctionPass Manager
-; CHECK-O2-NOT: Manager
-; We rotate loops prior to vectorization.
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NEXT: Rotate Loops
-; CHECK-O2-NOT: Manager
-; CHECK-O2: Loop Vectorization
-; CHECK-O2-NOT: Manager
-; CHECK-O2: SLP Vectorizer
-; CHECK-O2-NOT: Manager
-; After vectorization we do partial unrolling.
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NEXT: Unroll loops
-; CHECK-O2-NOT: Manager
-; After vectorization and unrolling we try to do any cleanup of inserted code,
-; including a run of LICM. This shouldn't run in the same loop pass manager as
-; the runtime unrolling though.
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NEXT: Loop Invariant Code Motion
-; CHECK-O2: FunctionPass Manager
-; CHECK-O2: Loop Pass Manager
-; CHECK-O2-NEXT: Loop Sink
-; CHECK-O2: Simplify the CFG
-; CHECK-O2-NOT: Manager
-;
-; FIXME: There really shouldn't be another pass manager, especially one that
-; just builds the domtree. It doesn't even run the verifier.
-; CHECK-O2: Pass Arguments:
-; CHECK-O2-NEXT: FunctionPass Manager
-; CHECK-O2-NEXT: Dominator Tree Construction
-
-define void @foo() {
-  ret void
-}