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1; RUN: opt -disable-verify -debug-pass-manager -passes='default<O1>' -force-vector-width=4 -S %s 2>&1 | FileCheck %s --check-prefixes=O12; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=4 -S %s 2>&1 | FileCheck %s --check-prefixes=O23; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=4 -extra-vectorizer-passes -S %s 2>&1 | FileCheck %s --check-prefixes=O2_EXTRA4 5; When the loop doesn't get vectorized, no extra vector passes should run.6; RUN: opt -disable-verify -debug-pass-manager -passes='default<O2>' -force-vector-width=0 -extra-vectorizer-passes -S %s 2>&1 | FileCheck %s --check-prefixes=O27 8; REQUIRES: asserts9 10; The loop vectorizer still runs at both -O1/-O2 even with the11; debug flag, but it only works on loops explicitly annotated12; with pragmas.13 14; SLP does not run at -O1. Loop vectorization runs, but it only15; works on loops explicitly annotated with pragmas.16; O1-LABEL: Running pass: LoopVectorizePass17; O1-NOT: Running pass: SLPVectorizerPass18; O1: Running pass: VectorCombinePass19 20; Everything runs at -O2.21; O2-LABEL: Running pass: LoopVectorizePass22; O2-NOT: Running pass: EarlyCSEPass23; O2-NOT: Running pass: LICMPass24; O2: Running pass: SLPVectorizerPass25; O2: Running pass: VectorCombinePass26 27; Optionally run cleanup passes.28; O2_EXTRA-LABEL: Running pass: LoopVectorizePass29; O2_EXTRA: Running pass: EarlyCSEPass30; O2_EXTRA: Running pass: CorrelatedValuePropagationPass31; O2_EXTRA: Running pass: InstCombinePass32; O2_EXTRA: Running pass: LICMPass33; O2_EXTRA: Running pass: SimpleLoopUnswitchPass34; O2_EXTRA: Running pass: SimplifyCFGPass35; O2_EXTRA: Running pass: InstCombinePass36; O2_EXTRA: Running pass: SLPVectorizerPass37; O2_EXTRA: Running pass: EarlyCSEPass38; O2_EXTRA: Running pass: VectorCombinePass39 40define i64 @f(i1 %cond, ptr %src, ptr %dst) {41entry:42 br label %loop43 44loop:45 %i = phi i64 [ 0, %entry ], [ %inc, %loop ]46 %src.i = getelementptr i32, ptr %src, i64 %i47 %src.v = load i32, ptr %src.i48 %add = add i32 %src.v, 1049 %dst.i = getelementptr i32, ptr %dst, i64 %i50 store i32 %add, ptr %dst.i51 %inc = add nuw nsw i64 %i, 152 %ec = icmp ne i64 %inc, 100053 br i1 %ec, label %loop, label %exit54 55exit:56 ret i64 %i57}58