eae26b6640
Instcombine prefers this canonical form (see getPreferredVectorIndex), as does IRBuilder when passing the index as an integer so we may as well use the prefered form from creation. NOTE: All test changes are mechanical with nothing else expected beyond a change of index type from i32 to i64. Differential Revision: https://reviews.llvm.org/D140983
70 lines
4.2 KiB
LLVM
70 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=loop-vectorize -scalable-vectorization=on -mtriple riscv64-linux-gnu -mattr=+zve32f,+f -S 2>%t | FileCheck %s
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target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
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target triple = "riscv64"
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; We can't use scalable vectorization for Zvl32b due to RVVBitsPerBlock being
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; 64. Since our vscale value is vlen/RVVBitsPerBlock this makes vscale 0.
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; Make sure we fall back to fixed vectorization instead.
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define void @vector_add_i16(ptr noalias nocapture %a, i16 %v, i64 %n) {
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; CHECK-LABEL: @vector_add_i16(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
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; CHECK: vector.ph:
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i16> poison, i16 [[V:%.*]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i16> [[BROADCAST_SPLATINSERT]], <2 x i16> poison, <2 x i32> zeroinitializer
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; CHECK-NEXT: [[BROADCAST_SPLATINSERT3:%.*]] = insertelement <2 x i16> poison, i16 [[V]], i64 0
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; CHECK-NEXT: [[BROADCAST_SPLAT4:%.*]] = shufflevector <2 x i16> [[BROADCAST_SPLATINSERT3]], <2 x i16> poison, <2 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: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ]
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; CHECK-NEXT: [[STEP_ADD:%.*]] = add <2 x i64> [[VEC_IND]], <i64 2, i64 2>
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; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], <2 x i64> [[VEC_IND]]
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, ptr [[A]], <2 x i64> [[STEP_ADD]]
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; CHECK-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <2 x i16> @llvm.masked.gather.v2i16.v2p0(<2 x ptr> [[TMP0]], i32 2, <2 x i1> <i1 true, i1 true>, <2 x i16> poison)
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; CHECK-NEXT: [[WIDE_MASKED_GATHER2:%.*]] = call <2 x i16> @llvm.masked.gather.v2i16.v2p0(<2 x ptr> [[TMP1]], i32 2, <2 x i1> <i1 true, i1 true>, <2 x i16> poison)
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; CHECK-NEXT: [[TMP2:%.*]] = add <2 x i16> [[WIDE_MASKED_GATHER]], [[BROADCAST_SPLAT]]
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; CHECK-NEXT: [[TMP3:%.*]] = add <2 x i16> [[WIDE_MASKED_GATHER2]], [[BROADCAST_SPLAT4]]
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; CHECK-NEXT: call void @llvm.masked.scatter.v2i16.v2p0(<2 x i16> [[TMP2]], <2 x ptr> [[TMP0]], i32 2, <2 x i1> <i1 true, i1 true>)
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; CHECK-NEXT: call void @llvm.masked.scatter.v2i16.v2p0(<2 x i16> [[TMP3]], <2 x ptr> [[TMP1]], i32 2, <2 x i1> <i1 true, i1 true>)
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
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; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[STEP_ADD]], <i64 2, i64 2>
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; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
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; CHECK-NEXT: br i1 [[TMP4]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: middle.block:
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; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, 1024
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; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
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; CHECK: scalar.ph:
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; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[IV:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IV]]
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; CHECK-NEXT: [[ELEM:%.*]] = load i16, ptr [[ARRAYIDX]], align 2
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; CHECK-NEXT: [[ADD:%.*]] = add i16 [[ELEM]], [[V]]
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; CHECK-NEXT: store i16 [[ADD]], ptr [[ARRAYIDX]], align 2
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; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[IV_NEXT]], 1024
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
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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 %a, i64 %iv
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%elem = load i16, ptr %arrayidx
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%add = add i16 %elem, %v
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store i16 %add, ptr %arrayidx
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond.not = icmp eq i64 %iv.next, 1024
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br i1 %exitcond.not, 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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