4a6f475446
The modified tests didn't have actual users of all inductions, making it trivial to eliminate them. Add users to make sure the inductions are actually used in the vectorized version.
48 lines
2.1 KiB
LLVM
48 lines
2.1 KiB
LLVM
; RUN: opt -S -loop-vectorize -force-vector-width=4 -force-vector-interleave=1 < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
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define void @foo(i64* %ptr, i32* %ptr.2) {
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; CHECK-LABEL: @foo(
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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: [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 2, i64 3, i64 4, i64 5>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VEC_IND_TRUNC:%.+]] = phi <4 x i32> [ <i32 2, i32 3, i32 4, i32 5>, %vector.ph ], [ [[VEC_IND_TRUNC_NEXT:%.+]], %vector.body ]
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; CHECK-NEXT: = add i64 [[INDEX]], 0
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; CHECK-NEXT: [[OFFSET_IDX:%.*]] = add i64 2, [[INDEX]]
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; CHECK-NEXT: [[TRUNC:%.+]] = trunc i64 [[OFFSET_IDX]] to i32
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; CHECK-NEXT: [[TMP7:%.*]] = add i32 [[TRUNC]], 0
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; CHECK-NEXT: [[TMP8:%.*]] = add i32 [[TRUNC]], 1
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; CHECK-NEXT: [[TMP9:%.*]] = add i32 [[TRUNC]], 2
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; CHECK-NEXT: [[TMP10:%.*]] = add i32 [[TRUNC]], 3
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; CHECK-NEXT: store i32 [[TMP7]], i32* %ptr.2, align 4
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; CHECK-NEXT: store i32 [[TMP8]], i32* %ptr.2, align 4
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; CHECK-NEXT: store i32 [[TMP9]], i32* %ptr.2, align 4
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; CHECK-NEXT: store i32 [[TMP10]], i32* %ptr.2, align 4
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; CHECK: store <4 x i64> [[VEC_IND]]
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
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; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i64> [[VEC_IND]], <i64 4, i64 4, i64 4, i64 4>
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; CHECK-NEXT: [[VEC_IND_TRUNC_NEXT]] = add <4 x i32> [[VEC_IND_TRUNC]], <i32 4, i32 4, i32 4, i32 4>
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; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], 80
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; CHECK-NEXT: br i1 [[TMP13]], 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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%can.iv = phi i64 [ 0, %entry ], [ %can.iv.next, %loop ]
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%0 = phi i64 [ 2, %entry ], [ %3, %loop ]
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%1 = and i64 %0, 4294967295
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%2 = trunc i64 %0 to i32
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store i32 %2, i32* %ptr.2
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%gep.ptr = getelementptr inbounds i64, i64* %ptr, i64 %can.iv
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store i64 %0, i64* %gep.ptr
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%3 = add nuw nsw i64 %1, 1
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%4 = icmp sgt i32 %2, 80
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%can.iv.next = add nuw nsw i64 %can.iv, 1
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br i1 %4, label %exit, label %loop
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exit:
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ret void
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}
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