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131
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1 // { dg-do compile }
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2 // { dg-require-effective-target c++14 }
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3 // { dg-options "-O2 -ffinite-math-only -fdump-tree-fre1" }
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4
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5 #include <array>
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6
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7 struct I { double i,s; I(double d):i(d),s(d){} };
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8 typedef std::array<double,3> P;
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9 typedef std::array<I,3> AP;
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10
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11 static AP c(P const&p){
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12 return {p[0],p[1],p[2]};
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13 }
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14 template<class T> auto const& ac(T const&p, int n){return p[n];}
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15 static double g(P const&p, int n)
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16 {
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17 I res = ac(c(p),n);
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18 return res.s-res.i;
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19 }
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20
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21 __attribute__((flatten)) double fff(P p){ return g(p,1); }
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22
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23 // { dg-final { scan-tree-dump "return 0.0;" "fre1" } }
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