1da0c47fa2
This removes some unneeded block masks when we don't have any reductions. It should not have any effect on codegen as the values created are dead anyway. Differential Revision: https://reviews.llvm.org/D81415
100 lines
4.9 KiB
LLVM
100 lines
4.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -loop-vectorize -force-vector-interleave=4 -pass-remarks='loop-vectorize' -disable-output -S 2>&1 | FileCheck %s --check-prefix=CHECK-REMARKS
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; RUN: opt < %s -loop-vectorize -force-vector-interleave=4 -S | FileCheck %s
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; These tests are to check that fold-tail procedure produces correct scalar code when
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; loop-vectorization is only unrolling but not vectorizing.
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; CHECK-REMARKS: remark: {{.*}} interleaved loop (interleaved count: 4)
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; CHECK-REMARKS-NEXT: remark: {{.*}} interleaved loop (interleaved count: 4)
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; CHECK-REMARKS-NOT: remark: {{.*}} vectorized loop
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define void @VF1-VPlanExe() {
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; CHECK-LABEL: @VF1-VPlanExe(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[INDUCTION:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[INDUCTION1:%.*]] = add i64 [[INDEX]], 1
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; CHECK-NEXT: [[INDUCTION2:%.*]] = add i64 [[INDEX]], 2
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; CHECK-NEXT: [[INDUCTION3:%.*]] = add i64 [[INDEX]], 3
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; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP0:%.*]] = icmp eq i64 [[INDEX_NEXT]], 16
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; CHECK-NEXT: br i1 [[TMP0]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !0
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; CHECK: middle.block:
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; CHECK-NEXT: br i1 true, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 16, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.cond.cleanup:
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; CHECK-NEXT: ret void
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; CHECK: for.body:
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; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 15
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; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop !2
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;
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entry:
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br label %for.body
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for.cond.cleanup:
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ret void
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for.body:
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 15
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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}
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define void @VF1-VPWidenCanonicalIVRecipeExe(double* %ptr1) {
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; CHECK-LABEL: @VF1-VPWidenCanonicalIVRecipeExe(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[PTR2:%.*]] = getelementptr inbounds double, double* [[PTR1:%.*]], i64 15
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[IND_END:%.*]] = getelementptr double, double* [[PTR1]], i64 16
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr double, double* [[PTR1]], i64 [[TMP0]]
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; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[INDEX]], 1
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; CHECK-NEXT: [[NEXT_GEP1:%.*]] = getelementptr double, double* [[PTR1]], i64 [[TMP1]]
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; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[INDEX]], 2
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; CHECK-NEXT: [[NEXT_GEP2:%.*]] = getelementptr double, double* [[PTR1]], i64 [[TMP2]]
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; CHECK-NEXT: [[TMP3:%.*]] = add i64 [[INDEX]], 3
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; CHECK-NEXT: [[NEXT_GEP3:%.*]] = getelementptr double, double* [[PTR1]], i64 [[TMP3]]
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; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], 16
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; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !3
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; CHECK: middle.block:
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; CHECK-NEXT: br i1 true, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi double* [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[PTR1]], [[ENTRY:%.*]] ]
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.cond.cleanup:
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; CHECK-NEXT: ret void
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; CHECK: for.body:
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; CHECK-NEXT: [[ADDR:%.*]] = phi double* [ [[PTR:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
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; CHECK-NEXT: [[PTR]] = getelementptr inbounds double, double* [[ADDR]], i64 1
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; CHECK-NEXT: [[COND:%.*]] = icmp eq double* [[PTR]], [[PTR2]]
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; CHECK-NEXT: br i1 [[COND]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop !4
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;
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entry:
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%ptr2 = getelementptr inbounds double, double* %ptr1, i64 15
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br label %for.body
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for.cond.cleanup:
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ret void
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for.body:
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%addr = phi double* [ %ptr, %for.body ], [ %ptr1, %entry ]
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%ptr = getelementptr inbounds double, double* %addr, i64 1
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%cond = icmp eq double* %ptr, %ptr2
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br i1 %cond, label %for.cond.cleanup, label %for.body
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}
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