forked from OSchip/llvm-project
33 lines
1.4 KiB
LLVM
33 lines
1.4 KiB
LLVM
; RUN: opt -loop-idiom < %s -S | FileCheck %s
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; RUN: opt -aa-pipeline=basic-aa -passes='require<aa>,require<targetir>,require<scalar-evolution>,loop(loop-idiom)' < %s -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%struct.bigBlock_t = type { [256 x <4 x float>] }
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; CHECK-LABEL: @test(
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; CHECK-NOT: llvm.memset
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define void @test(%struct.bigBlock_t* %p) {
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entry:
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%0 = getelementptr inbounds %struct.bigBlock_t, %struct.bigBlock_t* %p, i64 0, i32 0, i64 0, i64 0
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br label %for.body
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for.body: ; preds = %entry, %for.body
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%index.02 = phi i32 [ 0, %entry ], [ %add, %for.body ]
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%dst.01 = phi float* [ %0, %entry ], [ %add.ptr2, %for.body ]
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%cast.i5 = bitcast float* %dst.01 to <4 x float>*
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store <4 x float> zeroinitializer, <4 x float>* %cast.i5, align 16, !nontemporal !0
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%add.ptr1 = getelementptr inbounds float, float* %dst.01, i64 4
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%cast.i = bitcast float* %add.ptr1 to <4 x float>*
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store <4 x float> zeroinitializer, <4 x float>* %cast.i, align 16, !nontemporal !0
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%add.ptr2 = getelementptr inbounds float, float* %dst.01, i64 8
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%add = add nuw nsw i32 %index.02, 32
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%cmp = icmp ult i32 %add, 4096
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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!0 = !{i32 1}
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