da740492b0
This patch adds a new transform to remove dead recipes. For now, it only removes dead recipes in the header, to keep the number tests that require updating manageable. Future patches will extend this to remove dead recipes across the whole plan. Reviewed By: Ayal Differential Revision: https://reviews.llvm.org/D118051
53 lines
2.5 KiB
LLVM
53 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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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 dso_local global i32, align 4
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define void @int_iv_based_on_pointer_iv(i8* %A) {
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; VF1-LABEL: @int_iv_based_on_pointer_iv(
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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:%.*]] = mul i64 [[INDEX]], 4
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; VF1-NEXT: [[INDUCTION:%.*]] = add i64 [[OFFSET_IDX]], 0
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; VF1-NEXT: [[INDUCTION3:%.*]] = add i64 [[OFFSET_IDX]], 4
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; VF1-NEXT: [[TMP7:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[INDUCTION]]
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; VF1-NEXT: [[TMP8:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[INDUCTION3]]
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; VF1-NEXT: store i8 0, i8* [[TMP7]], align 1
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; VF1-NEXT: store i8 0, i8* [[TMP8]], align 1
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; VF1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; VF1-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]],
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; VF1-NEXT: br i1 [[TMP13]], label %middle.block, label %vector.body
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;
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; VF2-LABEL: @int_iv_based_on_pointer_iv(
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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:%.*]] = mul i64 [[INDEX]], 4
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; VF2-NEXT: [[TMP3:%.*]] = add i64 [[OFFSET_IDX]], 0
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; VF2-NEXT: [[TMP4:%.*]] = add i64 [[OFFSET_IDX]], 4
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; VF2-NEXT: [[TMP9:%.*]] = getelementptr inbounds i8, i8* [[A:%.*]], i64 [[TMP3]]
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; VF2-NEXT: [[TMP10:%.*]] = getelementptr inbounds i8, i8* [[A]], i64 [[TMP4]]
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; VF2-NEXT: store i8 0, i8* [[TMP9]], align 1
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; VF2-NEXT: store i8 0, i8* [[TMP10]], align 1
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; VF2-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; VF2-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]],
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; VF2-NEXT: br i1 [[TMP14]], label %middle.block, label %vector.body
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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 i32* [ null, %entry ], [ %iv.ptr.next, %loop ]
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%iv.ptr.next = getelementptr inbounds i32, i32* %iv.ptr, i64 1
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%gep.A = getelementptr inbounds i8, i8* %A, i64 %iv.int
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store i8 0, i8* %gep.A
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%iv.int.next = ptrtoint i32* %iv.ptr.next to i64
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%sub.ptr.sub = sub i64 ptrtoint (i32* @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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