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From: Tobias Burnus <burnus@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r11-8445] Testsuite/Fortran: gfortran.dg/pr96711.f90 - fix expected value for PowerPC [PR96983] Date: Thu, 20 May 2021 08:06:47 +0000 (GMT) [thread overview] Message-ID: <20210520080647.8840C385781D@sourceware.org> (raw) https://gcc.gnu.org/g:271fc1caac433e84e6389e73a5bf07350ea545e2 commit r11-8445-g271fc1caac433e84e6389e73a5bf07350ea545e2 Author: Tobias Burnus <tobias@codesourcery.com> Date: Thu May 20 09:51:10 2021 +0200 Testsuite/Fortran: gfortran.dg/pr96711.f90 - fix expected value for PowerPC [PR96983] gcc/testsuite/ChangeLog: PR fortran/96983 * gfortran.dg/pr96711.f90: Use 2**digit(x) instead of a hard-coded value; add comments regarding what the code does. (cherry picked from commit 9e0a5e3ea37f9d7d2b6f2dab7c0bfbeaf08466a3) Diff: --- gcc/testsuite/gfortran.dg/pr96711.f90 | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/gcc/testsuite/gfortran.dg/pr96711.f90 b/gcc/testsuite/gfortran.dg/pr96711.f90 index 3761a8ea416..3fa5d99cbf2 100644 --- a/gcc/testsuite/gfortran.dg/pr96711.f90 +++ b/gcc/testsuite/gfortran.dg/pr96711.f90 @@ -10,10 +10,12 @@ program p implicit none real(8) :: x real(16) :: y + ! Assume radix(x) == 2 + ! 2/epsilon(x) = 2/(radix(x)**(1-digits(x)) = 2**digits(x) with that assumption integer(16), parameter :: k1 = nint (2 / epsilon (x), kind(k1)) integer(16), parameter :: k2 = nint (2 / epsilon (y), kind(k2)) - integer(16), parameter :: m1 = 9007199254740992_16 !2**53 - integer(16), parameter :: m2 = 10384593717069655257060992658440192_16 !2**113 + integer(16), parameter :: m1 = 2_16**digits(x) ! IEEE: 2**53 + integer(16), parameter :: m2 = 2_16**digits(y) ! IEEE: 2**113 integer(16), volatile :: m x = 2 / epsilon (x) y = 2 / epsilon (y)
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