derek.holloway
7502bf64a4
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51 lines
2.2 KiB
LLVM
51 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 6
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; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -S | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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define void @lshr_exact(ptr %x) !prof !{!"function_entry_count", i32 1} {
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; CHECK-LABEL: define void @lshr_exact(
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; CHECK-SAME: ptr [[X:%.*]]) !prof [[PROF0:![0-9]+]] {
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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: br label %[[VECTOR_BODY:.*]]
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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: [[TMP0:%.*]] = getelementptr inbounds i32, ptr [[X]], i64 [[INDEX]]
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; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, ptr [[TMP0]], align 4
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; CHECK-NEXT: [[TMP1:%.*]] = lshr exact <4 x i32> [[WIDE_LOAD]], splat (i32 1)
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; CHECK-NEXT: store <4 x i32> [[TMP1]], ptr [[TMP0]], align 4
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i64 [[INDEX_NEXT]], 256
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; CHECK-NEXT: br i1 [[TMP2]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !prof [[PROF1:![0-9]+]], !llvm.loop [[LOOP2:![0-9]+]]
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; CHECK: [[MIDDLE_BLOCK]]:
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; CHECK-NEXT: br label %[[FOR_END:.*]]
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; CHECK: [[FOR_END]]:
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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 i64 [ 0, %entry ], [ %iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32, ptr %x, i64 %iv
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%0 = load i32, ptr %arrayidx, align 4
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%conv1 = lshr exact i32 %0, 1
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store i32 %conv1, ptr %arrayidx, align 4
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, 256
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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;.
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; CHECK: [[PROF0]] = !{!"function_entry_count", i32 1}
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; CHECK: [[PROF1]] = !{!"branch_weights", i32 1, i32 63}
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; CHECK: [[LOOP2]] = distinct !{[[LOOP2]], [[META3:![0-9]+]], [[META4:![0-9]+]], [[META5:![0-9]+]]}
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; CHECK: [[META3]] = !{!"llvm.loop.isvectorized", i32 1}
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; CHECK: [[META4]] = !{!"llvm.loop.unroll.runtime.disable"}
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; CHECK: [[META5]] = !{!"llvm.loop.estimated_trip_count", i32 64}
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;.
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