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annotate libgomp/testsuite/libgomp.fortran/pr34020.f90 @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 1830386684a0
children
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 ! PR fortran/34020
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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2 ! { dg-do run }
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3
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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4 subroutine atomic_add(lhs, rhs)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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5 real lhs, rhs
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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6 !$omp atomic
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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7 lhs = rhs + lhs
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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8 end
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kono
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10 external atomic_add
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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11 real lhs, rhs
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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12 integer i
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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13 lhs = 0
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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14 rhs = 1
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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15 !$omp parallel do num_threads(8) shared(lhs, rhs)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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16 do i = 1, 300000
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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17 call atomic_add(lhs, rhs)
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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18 enddo
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19 if (lhs .ne. 300000) stop 1
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20 end