107 lines
5.5 KiB
LLVM
107 lines
5.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -basic-aa -loop-idiom < %s -S | FileCheck %s
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define void @copy_both_noalias(float* noalias nocapture %d, float* noalias nocapture readonly %s, i64 %sz) {
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; CHECK-LABEL: @copy_both_noalias(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[D1:%.*]] = bitcast float* [[D:%.*]] to i8*
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; CHECK-NEXT: [[S2:%.*]] = bitcast float* [[S:%.*]] to i8*
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; CHECK-NEXT: [[EXITCOND_NOT1:%.*]] = icmp eq i64 [[SZ:%.*]], 0
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; CHECK-NEXT: br i1 [[EXITCOND_NOT1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]
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; CHECK: for.body.preheader:
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; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SZ]], 2
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[D1]], i8* align 4 [[S2]], i64 [[TMP0]], i1 false)
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[I_04:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[D_ADDR_03:%.*]] = phi float* [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[D]], [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[S_ADDR_02:%.*]] = phi float* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[S]], [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds float, float* [[S_ADDR_02]], i64 1
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; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[S_ADDR_02]], align 4
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; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds float, float* [[D_ADDR_03]], i64 1
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; CHECK-NEXT: [[INC]] = add i64 [[I_04]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[SZ]]
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
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; CHECK: for.end.loopexit:
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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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%exitcond.not1 = icmp eq i64 %sz, 0
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br i1 %exitcond.not1, label %for.end, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%i.04 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%d.addr.03 = phi float* [ %incdec.ptr1, %for.body ], [ %d, %for.body.preheader ]
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%s.addr.02 = phi float* [ %incdec.ptr, %for.body ], [ %s, %for.body.preheader ]
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%incdec.ptr = getelementptr inbounds float, float* %s.addr.02, i64 1
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%0 = load float, float* %s.addr.02, align 4
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%incdec.ptr1 = getelementptr inbounds float, float* %d.addr.03, i64 1
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store float %0, float* %d.addr.03, align 4
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%inc = add i64 %i.04, 1
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%exitcond.not = icmp eq i64 %inc, %sz
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br i1 %exitcond.not, label %for.end.loopexit, label %for.body
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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define void @copy_one_noalias(float* nocapture %d, float* noalias nocapture readonly %s, i64 %sz) {
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; CHECK-LABEL: @copy_one_noalias(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[D1:%.*]] = bitcast float* [[D:%.*]] to i8*
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; CHECK-NEXT: [[S2:%.*]] = bitcast float* [[S:%.*]] to i8*
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; CHECK-NEXT: [[EXITCOND_NOT1:%.*]] = icmp eq i64 [[SZ:%.*]], 0
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; CHECK-NEXT: br i1 [[EXITCOND_NOT1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]
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; CHECK: for.body.preheader:
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; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SZ]], 2
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[D1]], i8* align 4 [[S2]], i64 [[TMP0]], i1 false)
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; CHECK-NEXT: br label [[FOR_BODY:%.*]]
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; CHECK: for.body:
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; CHECK-NEXT: [[I_04:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[D_ADDR_03:%.*]] = phi float* [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[D]], [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[S_ADDR_02:%.*]] = phi float* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[S]], [[FOR_BODY_PREHEADER]] ]
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; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds float, float* [[S_ADDR_02]], i64 1
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; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[S_ADDR_02]], align 4
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; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds float, float* [[D_ADDR_03]], i64 1
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; CHECK-NEXT: [[INC]] = add i64 [[I_04]], 1
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; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[SZ]]
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; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
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; CHECK: for.end.loopexit:
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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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%exitcond.not1 = icmp eq i64 %sz, 0
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br i1 %exitcond.not1, label %for.end, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.body.preheader, %for.body
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%i.04 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%d.addr.03 = phi float* [ %incdec.ptr1, %for.body ], [ %d, %for.body.preheader ]
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%s.addr.02 = phi float* [ %incdec.ptr, %for.body ], [ %s, %for.body.preheader ]
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%incdec.ptr = getelementptr inbounds float, float* %s.addr.02, i64 1
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%0 = load float, float* %s.addr.02, align 4
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%incdec.ptr1 = getelementptr inbounds float, float* %d.addr.03, i64 1
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store float %0, float* %d.addr.03, align 4
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%inc = add i64 %i.04, 1
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%exitcond.not = icmp eq i64 %inc, %sz
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br i1 %exitcond.not, label %for.end.loopexit, label %for.body
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for.end.loopexit: ; preds = %for.body
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br label %for.end
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for.end: ; preds = %for.end.loopexit, %entry
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ret void
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}
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