derek.holloway
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57 lines
2.5 KiB
LLVM
57 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -p loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S %s | FileCheck %s
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target datalayout = "p:16:16"
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define void @pr77468(ptr noalias %src, ptr noalias %dst, i1 %x) {
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; CHECK-LABEL: define void @pr77468(
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; CHECK-SAME: ptr noalias [[SRC:%.*]], ptr noalias [[DST:%.*]], i1 [[X:%.*]]) {
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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_SPLATINSERT:%.*]] = insertelement <4 x i1> poison, i1 [[X]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <4 x i1> [[BROADCAST_SPLATINSERT]], <4 x i1> poison, <4 x i32> zeroinitializer
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; CHECK-NEXT: [[TMP3:%.*]] = zext <4 x i1> [[BROADCAST_SPLAT]] to <4 x i16>
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; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
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; CHECK: vector.body:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[OFFSET_IDX:%.*]] = trunc i32 [[INDEX]] to i16
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i32, ptr [[SRC]], i16 [[OFFSET_IDX]]
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; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP1]], align 1
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; CHECK-NEXT: [[TMP4:%.*]] = trunc <4 x i32> [[WIDE_LOAD]] to <4 x i16>
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; CHECK-NEXT: [[TMP5:%.*]] = and <4 x i16> [[TMP3]], [[TMP4]]
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; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i16, ptr [[DST]], i16 [[OFFSET_IDX]]
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; CHECK-NEXT: store <4 x i16> [[TMP5]], ptr [[TMP6]], align 2
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 4
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; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i32 [[INDEX_NEXT]], 100
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; CHECK-NEXT: br i1 [[TMP8]], 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 [[LOOP:%.*]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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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 = phi i16 [ 0, %entry ], [ %iv.next, %loop ]
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%gep.src = getelementptr i32, ptr %src, i16 %iv
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%l = load i32, ptr %gep.src, align 1
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%x.ext = zext i1 %x to i32
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%and = and i32 %x.ext, %l
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%gep.dst = getelementptr i16, ptr %dst, i16 %iv
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%t = trunc i32 %and to i16
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store i16 %t, ptr %gep.dst
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%iv.next = add i16 %iv , 1
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%exitcond.not = icmp eq i16 %iv.next, 100
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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;.
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; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]}
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; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1}
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; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"}
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;.
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