From c022c0de2a6c9110350cd50275be97d061a19530 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 29 Jun 2022 17:04:50 +0200 Subject: libgfortran: Fix up LIBGFOR_CHECK_FLOAT128 [PR106137] My recent gfortran + libgfortran patch apparently broke (some?) aarch64 builds. While it is desirable to use just _Float128 rather than __float128, we only want to use it (and e.g. define HAVE_FLOAT128) on targets where _Float128 is supported and long double isn't IEEE quad precision. Which is targets that support __float128 type which we have been testing for before - _Float128 is supported on those targets and on targets where long double is IEEE quad precision. So, the following patch restores check for whether __float128 is supported into the LIBGFOR_CHECK_FLOAT128 check which determines whether HAVE_FLOAT128 is defined or whether to use libquadmath, so that e.g. on aarch64 where long double is IEEE quad we don't do that. 2022-06-29 Jakub Jelinek PR bootstrap/106137 * acinclude.m4 (LIBGFOR_CHECK_FLOAT128): Adjust comment. Also test for __float128. (HAVE_FLOAT128): Adjust description. * config.h.in: Regenerated. * configure: Regenerated. --- libgfortran/configure | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'libgfortran/configure') diff --git a/libgfortran/configure b/libgfortran/configure index c833591..c440721 100755 --- a/libgfortran/configure +++ b/libgfortran/configure @@ -30130,7 +30130,6 @@ else _Float128 foo (_Float128 x) { - _Complex _Float128 z1, z2; z1 = x; @@ -30145,14 +30144,21 @@ else return x * __builtin_huge_valf128 (); } + __float128 baz (__float128 x) + { + return x * __builtin_huge_valf128 (); + } + int main () { foo (1.2F128); bar (1.2F128); + baz (1.2F128); foo (1.2Q); bar (1.2Q); + baz (1.2Q); ; return 0; @@ -30177,7 +30183,6 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext _Float128 foo (_Float128 x) { - _Complex _Float128 z1, z2; z1 = x; @@ -30192,14 +30197,21 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext return x * __builtin_huge_valf128 (); } + __float128 baz (__float128 x) + { + return x * __builtin_huge_valf128 (); + } + int main () { foo (1.2F128); bar (1.2F128); + baz (1.2F128); foo (1.2Q); bar (1.2Q); + baz (1.2Q); ; return 0; -- cgit v1.1