derek.holloway
7502bf64a4
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46 lines
2.2 KiB
LLVM
46 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes="loop-vectorize" -force-vector-interleave=1 -force-vector-width=4 -S < %s | FileCheck %s
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define void @uitofp_preserve_nneg(ptr %result, i32 %size, float %y) {
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; CHECK-LABEL: @uitofp_preserve_nneg(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement <4 x float> poison, float [[Y:%.*]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector <4 x float> [[BROADCAST_SPLATINSERT2]], <4 x float> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX1:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = uitofp nneg <4 x i32> [[VEC_IND]] to <4 x float>
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; CHECK-NEXT: [[TMP3:%.*]] = fmul <4 x float> [[TMP0]], [[BROADCAST_SPLAT3]]
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; CHECK-NEXT: [[INDEX:%.*]] = zext nneg i32 [[INDEX1]] to i64
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; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds float, ptr [[RESULT:%.*]], i64 [[INDEX]]
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; CHECK-NEXT: store <4 x float> [[TMP3]], ptr [[TMP2]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX1]], 4
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; CHECK-NEXT: [[VEC_IND_NEXT]] = add nuw nsw <4 x i32> [[VEC_IND]], splat (i32 4)
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; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i32 [[INDEX_NEXT]], 256
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; CHECK-NEXT: br i1 [[TMP6]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.exit:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.body
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for.body:
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%iv = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%conv = uitofp nneg i32 %iv to float
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%val = fmul float %conv, %y
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%idxprom = zext nneg i32 %iv to i64
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%arrayidx = getelementptr inbounds float, ptr %result, i64 %idxprom
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store float %val, ptr %arrayidx, align 4
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%inc = add nuw nsw i32 %iv, 1
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%cmp = icmp slt i32 %inc, 256
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br i1 %cmp, label %for.body, label %for.exit
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for.exit:
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ret void
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}
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