5c94faba0b
Opaque ptr types have a size in bits of 0. The legalised type is an i64 or vector of i64s, which do have a size. Because of this difference in size, target hook getMemoryOpCost modelled stores of ptr types as extending/truncating load/stores. Now we just check for opaque ptr types and return the legalised cost. This makes stores of pointers cheaper, and as a result we now SLP vectorise the changed test case. Differential Revision: https://reviews.llvm.org/D140193
77 lines
3.6 KiB
LLVM
77 lines
3.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=slp-vectorizer -S | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64"
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%struct.node = type { i64, i64, ptr, ptr }
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define void @copy(ptr nocapture noundef writeonly %x, ptr nocapture noundef readonly %y, i32 noundef %n) {
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; CHECK-LABEL: @copy(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP34:%.*]] = icmp sgt i32 [[N:%.*]], 0
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; CHECK-NEXT: br i1 [[CMP34]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]
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; CHECK: for.body.preheader:
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; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.cond.cleanup:
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; CHECK-NEXT: ret void
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; CHECK: for.body:
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; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [[STRUCT_NODE:%.*]], ptr [[Y:%.*]], i64 [[INDVARS_IV]]
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; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds [[STRUCT_NODE]], ptr [[X:%.*]], i64 [[INDVARS_IV]]
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; CHECK-NEXT: [[TMP0:%.*]] = load <2 x i64>, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA0:![0-9]+]]
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; CHECK-NEXT: store <2 x i64> [[TMP0]], ptr [[ARRAYIDX2]], align 8, !tbaa [[TBAA0]]
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; CHECK-NEXT: [[C:%.*]] = getelementptr inbounds [[STRUCT_NODE]], ptr [[Y]], i64 [[INDVARS_IV]], i32 2
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; CHECK-NEXT: [[C13:%.*]] = getelementptr inbounds [[STRUCT_NODE]], ptr [[X]], i64 [[INDVARS_IV]], i32 2
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; CHECK-NEXT: [[TMP1:%.*]] = load <2 x ptr>, ptr [[C]], align 8, !tbaa [[TBAA4:![0-9]+]]
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; CHECK-NEXT: store <2 x ptr> [[TMP1]], ptr [[C13]], align 8, !tbaa [[TBAA4]]
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; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]]
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;
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entry:
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%cmp34 = icmp sgt i32 %n, 0
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br i1 %cmp34, label %for.body.preheader, label %for.cond.cleanup
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for.body.preheader:
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%wide.trip.count = zext i32 %n to i64
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br label %for.body
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for.cond.cleanup:
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ret void
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for.body:
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%indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds %struct.node, ptr %y, i64 %indvars.iv
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%0 = load i64, ptr %arrayidx, align 8, !tbaa !4
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%arrayidx2 = getelementptr inbounds %struct.node, ptr %x, i64 %indvars.iv
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store i64 %0, ptr %arrayidx2, align 8, !tbaa !4
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%b = getelementptr inbounds %struct.node, ptr %y, i64 %indvars.iv, i32 1
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%1 = load i64, ptr %b, align 8, !tbaa !10
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%b8 = getelementptr inbounds %struct.node, ptr %x, i64 %indvars.iv, i32 1
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store i64 %1, ptr %b8, align 8, !tbaa !10
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%c = getelementptr inbounds %struct.node, ptr %y, i64 %indvars.iv, i32 2
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%2 = load ptr, ptr %c, align 8, !tbaa !11
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%c13 = getelementptr inbounds %struct.node, ptr %x, i64 %indvars.iv, i32 2
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store ptr %2, ptr %c13, align 8, !tbaa !11
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%d = getelementptr inbounds %struct.node, ptr %y, i64 %indvars.iv, i32 3
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%3 = load ptr, ptr %d, align 8, !tbaa !12
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%d18 = getelementptr inbounds %struct.node, ptr %x, i64 %indvars.iv, i32 3
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store ptr %3, ptr %d18, align 8, !tbaa !12
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
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br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
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}
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!4 = !{!5, !6, i64 0}
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!5 = !{!"", !6, i64 0, !6, i64 8, !9, i64 16, !9, i64 24}
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!6 = !{!"long", !7, i64 0}
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!7 = !{!"omnipotent char", !8, i64 0}
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!8 = !{!"Simple C/C++ TBAA"}
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!9 = !{!"any pointer", !7, i64 0}
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!10 = !{!5, !6, i64 8}
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!11 = !{!5, !9, i64 16}
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!12 = !{!5, !9, i64 24}
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