20 lines
801 B
LLVM
20 lines
801 B
LLVM
; RUN: opt -S -early-cse < %s | FileCheck %s
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; RUN: opt -S -basicaa -early-cse-memssa < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-gnu"
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declare { <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16> } @llvm.aarch64.neon.ld4.v4i16.p0v4i16(<4 x i16>*)
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; Although the store and the ld4 are using the same pointer, the
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; data can not be reused because ld4 accesses multiple elements.
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define { <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16> } @foo() {
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entry:
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store <4 x i16> undef, <4 x i16>* undef, align 8
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%0 = call { <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16> } @llvm.aarch64.neon.ld4.v4i16.p0v4i16(<4 x i16>* undef)
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ret { <4 x i16>, <4 x i16>, <4 x i16>, <4 x i16> } %0
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; CHECK-LABEL: @foo(
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; CHECK: store
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; CHECK-NEXT: call
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; CHECK-NEXT: ret
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}
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