[llvm] 99b86d7 - [PassManager] add tests for vector pass enabling; NFC

[Roman Lebedev via llvm-commits]

Now that i think about it, do we have similar -fno-unroll-loops test
coverage? Anything else?

On Sat, Feb 29, 2020 at 4:07 PM Sanjay Patel via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
>
>
> Author: Sanjay Patel
> Date: 2020-02-29T07:56:41-05:00
> New Revision: 99b86d76b5e13e2257d791c66f45dd679b7bd92e
>
> URL: https://github.com/llvm/llvm-project/commit/99b86d76b5e13e2257d791c66f45dd679b7bd92e
> DIFF: https://github.com/llvm/llvm-project/commit/99b86d76b5e13e2257d791c66f45dd679b7bd92e.diff
>
> LOG: [PassManager] add tests for vector pass enabling; NFC
>
> Added:
>     llvm/test/Other/opt-pipeline-vector-passes.ll
>
> Modified:
>
>
> Removed:
>
>
>
> ################################################################################
> diff  --git a/llvm/test/Other/opt-pipeline-vector-passes.ll b/llvm/test/Other/opt-pipeline-vector-passes.ll
> new file mode 100644
> index 000000000000..1a1ad56c88e7
> --- /dev/null
> +++ b/llvm/test/Other/opt-pipeline-vector-passes.ll
> @@ -0,0 +1,52 @@
> +; RUN: opt -O1                    -debug-pass=Structure  < %s -o /dev/null 2>&1 | FileCheck %s --check-prefixes=OLDPM_O1
> +; RUN: opt -O2                    -debug-pass=Structure  < %s -o /dev/null 2>&1 | FileCheck %s --check-prefixes=OLDPM_O2
> +; RUN: opt -O1 -vectorize-loops=0 -debug-pass=Structure  < %s -o /dev/null 2>&1 | FileCheck %s --check-prefixes=OLDPM_O1_FORCE_OFF
> +; RUN: opt -O2 -vectorize-loops=0 -debug-pass=Structure  < %s -o /dev/null 2>&1 | FileCheck %s --check-prefixes=OLDPM_O2_FORCE_OFF
> +; RUN: opt -disable-verify -debug-pass-manager -passes='default<O1>' -S %s 2>&1 | FileCheck %s --check-prefixes=NEWPM_O1
> +; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -S %s 2>&1 | FileCheck %s --check-prefixes=NEWPM_O2
> +
> +; REQUIRES: asserts
> +
> +; SLP does not run at -O1. Loop vectorization runs, but it only
> +; works on loops explicitly annotated with pragmas.
> +
> +; OLDPM_O1-LABEL:  Pass Arguments:
> +; OLDPM_O1:        Loop Vectorization
> +; OLDPM_O1:        Optimize scalar/vector ops
> +; OLDPM_O1-NOT:    SLP Vectorizer
> +
> +; Everything runs at -O2.
> +
> +; OLDPM_O2-LABEL:  Pass Arguments:
> +; OLDPM_O2:        Loop Vectorization
> +; OLDPM_O2:        Optimize scalar/vector ops
> +; OLDPM_O2:        SLP Vectorizer
> +
> +; The loop vectorizer still runs at both -O1/-O2 even with the
> +; debug flag, but it only works on loops explicitly annotated
> +; with pragmas.
> +
> +; OLDPM_O1_FORCE_OFF-LABEL:  Pass Arguments:
> +; OLDPM_O1_FORCE_OFF:        Loop Vectorization
> +; OLDPM_O1_FORCE_OFF:        Optimize scalar/vector ops
> +; OLDPM_O1_FORCE_OFF-NOT:    SLP Vectorizer
> +
> +; OLDPM_O2_FORCE_OFF-LABEL:  Pass Arguments:
> +; OLDPM_O2_FORCE_OFF:        Loop Vectorization
> +; OLDPM_O2_FORCE_OFF:        Optimize scalar/vector ops
> +; OLDPM_O2_FORCE_OFF:        SLP Vectorizer
> +
> +; There should be no
> diff erence with the new pass manager.
> +; This is tested more thoroughly in other test files.
> +
> +; NEWPM_O1-LABEL:  Running pass: LoopVectorizePass
> +; NEWPM_O1:        Running pass: VectorCombinePass
> +; NEWPM_O1-NOT:    Running pass: SLPVectorizerPass
> +
> +; NEWPM_O2-LABEL:  Running pass: LoopVectorizePass
> +; NEWPM_O2:        Running pass: VectorCombinePass
> +; NEWPM_O2:        Running pass: SLPVectorizerPass
> +
> +define void @f() {
> +  ret void
> +}
>
>
>
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