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Fix gcc.dg/torture/fp-int-convert.h for excess precision after PR c/87390.

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As reported in
<https://gcc.gnu.org/ml/gcc-patches/2018-09/msg01684.html>, some
fp-int-convert tests fail after my fix for PR c/87390, in Arm /
AArch64 configurations where _Float16 uses excess precision by
default.  The issue is comparisons of the results of a conversion by
assignment (compile-time or run-time) from integer to floating-point
with the original integer value; previously this would compare against
an implicit compile-time conversion to the target type, but now, for
C11 and later, it compares against an implicit compile-time conversion
to a possibly wider evaluation format.  This is fixed by adding casts
to the test so that the comparison is with a value converted
explicitly to the target type at compile time, without any use of a
wider evaluation format.

	PR c/87390
	* gcc.dg/torture/fp-int-convert.h (TEST_I_F_VAL): Convert integer
	values explicitly to target type for comparison.

From-SVN: r264696
This commit is contained in:
Joseph Myers 2018-09-28 16:45:51 +01:00 committed by Joseph Myers
parent 02469d3a1d
commit 5718d9d95f
2 changed files with 8 additions and 1 deletions
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6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2018-09-28 Joseph Myers <joseph@codesourcery.com>
PR c/87390
* gcc.dg/torture/fp-int-convert.h (TEST_I_F_VAL): Convert integer
values explicitly to target type for comparison.
2018-09-28 Steve Ellcey <sellcey@cavium.com>
PR testsuite/87433

3
gcc/testsuite/gcc.dg/torture/fp-int-convert.h
View File

@ -90,6 +90,7 @@ do { \
if (ivin != (VAL) \
|| ((PREC_OK) && ivout != ivin) \
|| ((PREC_OK) && ivout != (VAL)) \
|| fv1 != (VAL) || fv2 != (VAL) || fv1 != fv2) \
|| fv1 != (FT) (VAL) || fv2 != (FT) (VAL) \
|| fv1 != fv2) \
abort (); \
} while (0)