e6d46f16ab
This allows us to strip DerivedIVRecipe::execute, and remove the dependency on emitTransformedIndex. It allows us to benefit from existing simplifications in VPlan.
87 lines
4.6 KiB
LLVM
87 lines
4.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --filter-out-after "^scalar.ph" --version 6
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; RUN: opt -passes=loop-vectorize -force-vector-width=1 -force-vector-interleave=2 -S %s | FileCheck --check-prefix=VF1 %s
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; RUN: opt -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S %s | FileCheck --check-prefix=VF2 %s
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@f = external global i32, align 4
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define void @int_iv_based_on_pointer_iv(ptr %A) {
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; VF1-LABEL: define void @int_iv_based_on_pointer_iv(
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; VF1-SAME: ptr [[A:%.*]]) {
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; VF1-NEXT: [[ENTRY:.*:]]
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; VF1-NEXT: [[SMIN:%.*]] = call i64 @llvm.smin.i64(i64 add (i64 ptrtoint (ptr @f to i64), i64 -4), i64 0)
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; VF1-NEXT: [[TMP0:%.*]] = sub i64 add (i64 ptrtoint (ptr @f to i64), i64 -1), [[SMIN]]
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; VF1-NEXT: [[TMP1:%.*]] = lshr i64 [[TMP0]], 2
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; VF1-NEXT: [[TMP2:%.*]] = add nuw nsw i64 [[TMP1]], 1
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; VF1-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP2]], 2
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; VF1-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
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; VF1: [[VECTOR_PH]]:
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; VF1-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP2]], 2
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; VF1-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP2]], [[N_MOD_VF]]
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; VF1-NEXT: [[TMP4:%.*]] = shl i64 [[N_VEC]], 2
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; VF1-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr null, i64 [[TMP4]]
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; VF1-NEXT: br label %[[VECTOR_BODY:.*]]
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; VF1: [[VECTOR_BODY]]:
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; VF1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; VF1-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 2
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; VF1-NEXT: [[INDUCTION3:%.*]] = add i64 [[OFFSET_IDX]], 4
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; VF1-NEXT: [[TMP7:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_IDX]]
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; VF1-NEXT: [[TMP8:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[INDUCTION3]]
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; VF1-NEXT: store i8 0, ptr [[TMP7]], align 1
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; VF1-NEXT: store i8 0, ptr [[TMP8]], align 1
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; VF1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; VF1-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; VF1-NEXT: br i1 [[TMP9]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; VF1: [[MIDDLE_BLOCK]]:
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; VF1-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[N_VEC]]
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; VF1-NEXT: br i1 [[CMP_N]], [[EXIT:label %.*]], label %[[SCALAR_PH]]
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; VF1: [[SCALAR_PH]]:
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;
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; VF2-LABEL: define void @int_iv_based_on_pointer_iv(
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; VF2-SAME: ptr [[A:%.*]]) {
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; VF2-NEXT: [[ENTRY:.*:]]
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; VF2-NEXT: [[SMIN:%.*]] = call i64 @llvm.smin.i64(i64 add (i64 ptrtoint (ptr @f to i64), i64 -4), i64 0)
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; VF2-NEXT: [[TMP0:%.*]] = sub i64 add (i64 ptrtoint (ptr @f to i64), i64 -1), [[SMIN]]
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; VF2-NEXT: [[TMP1:%.*]] = lshr i64 [[TMP0]], 2
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; VF2-NEXT: [[TMP2:%.*]] = add nuw nsw i64 [[TMP1]], 1
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; VF2-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP2]], 2
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; VF2-NEXT: br i1 [[MIN_ITERS_CHECK]], label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]]
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; VF2: [[VECTOR_PH]]:
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; VF2-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP2]], 2
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; VF2-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP2]], [[N_MOD_VF]]
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; VF2-NEXT: [[TMP6:%.*]] = shl i64 [[N_VEC]], 2
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; VF2-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr null, i64 [[TMP6]]
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; VF2-NEXT: br label %[[VECTOR_BODY:.*]]
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; VF2: [[VECTOR_BODY]]:
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; VF2-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; VF2-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 2
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; VF2-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 4
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; VF2-NEXT: [[TMP9:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[OFFSET_IDX]]
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; VF2-NEXT: [[TMP10:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP4]]
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; VF2-NEXT: store i8 0, ptr [[TMP9]], align 1
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; VF2-NEXT: store i8 0, ptr [[TMP10]], align 1
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; VF2-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; VF2-NEXT: [[TMP11:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
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; VF2-NEXT: br i1 [[TMP11]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; VF2: [[MIDDLE_BLOCK]]:
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; VF2-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[N_VEC]]
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; VF2-NEXT: br i1 [[CMP_N]], [[EXIT:label %.*]], label %[[SCALAR_PH]]
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; VF2: [[SCALAR_PH]]:
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;
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entry:
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br label %loop
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loop:
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%iv.int = phi i64 [ 0, %entry ], [ %iv.int.next, %loop ]
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%iv.ptr = phi ptr [ null, %entry ], [ %iv.ptr.next, %loop ]
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%iv.ptr.next = getelementptr inbounds i32, ptr %iv.ptr, i64 1
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%gep.A = getelementptr inbounds i8, ptr %A, i64 %iv.int
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store i8 0, ptr %gep.A
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%iv.int.next = ptrtoint ptr %iv.ptr.next to i64
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%sub.ptr.sub = sub i64 ptrtoint (ptr @f to i64), %iv.int.next
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%cmp = icmp sgt i64 %sub.ptr.sub, 0
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br i1 %cmp, label %loop, label %exit
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exit:
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ret void
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}
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