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[VFDatabase] Scalar functions are vector functions with VF =1
Summary: Return scalar function when VF==1. The new trivial mapping scalar --> scalar when VF==1 to prevent false positive for "isVectorizable" query. Author: masoud.ataei (Masoud Ataei) Reviewers: Whitney (Whitney Tsang), fhahn (Florian Hahn), pjeeva01 (Jeeva P.), fpetrogalli (Francesco Petrogalli), rengolin (Renato Golin) Reviewed By: fpetrogalli (Francesco Petrogalli) Subscribers: hiraditya (Aditya Kumar), llvm-commits, LLVM Tag: LLVM Differential Revision: https://reviews.llvm.org/D78054
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; RUN: opt < %s -passes=loop-vectorize -S 2>&1 | FileCheck %s | ||
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target triple = "powerpc64le-unknown-linux-gnu" | ||
%type = type { [3 x double] } | ||
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define void @getScalarFunc(double* %A, double* %C, %type* %B) #0 { | ||
; CHECK-LABEL: getScalarFunc | ||
; This check will catch also the massv version of the function. | ||
; CHECK-NOT: call fast <{{[0-9]+}} x double> @{{.*}}atan{{.*}}(<{{[0-9]+}} x double> %{{[0-9]+}}) | ||
entry: | ||
br label %for.body | ||
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for.body: | ||
%i = phi i64 [ %inc, %for.body ], [ 0, %entry ] | ||
%dummyload2 = load double, double* %A, align 8 | ||
%arrayidx.i24 = getelementptr inbounds %type, %type* %B, i64 %i, i32 0, i32 0 | ||
%_15 = load double, double* %arrayidx.i24, align 8 | ||
%call10 = tail call fast double @atan(double %_15) #1 | ||
%inc = add i64 %i, 1 | ||
%cmp = icmp ugt i64 1000, %inc | ||
br i1 %cmp, label %for.body, label %for.end | ||
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for.end: | ||
ret void | ||
} | ||
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declare double @atan(double) local_unnamed_addr | ||
declare <2 x double> @__atand2_massv(<2 x double>) #1 | ||
attributes #0 = { "target-cpu"="pwr9" } | ||
attributes #1 = { nounwind readnone "vector-function-abi-variant"="_ZGV_LLVM_N2v_atan(__atand2_massv)" } |
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