From da89496337b97e6a2aaf1e81d55cf998f6db1070 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 31 Jan 2024 19:17:27 +0100 Subject: Use gcc __builtin_stdc_* builtins in stdbit.h if possible The following patch uses the GCC 14 __builtin_stdc_* builtins in stdbit.h for the type-generic macros, so that when compiled with GCC 14 or later, it supports not just 8/16/32/64-bit unsigned integers, but also 128-bit (if target supports them) and unsigned _BitInt (any supported precision). And so that the macros don't expand arguments multiple times and can be evaluated in constant expressions. The new testcase is gcc's gcc/testsuite/gcc.dg/builtin-stdc-bit-1.c adjusted to test stdbit.h and the type-generic macros in there instead of the builtins and adjusted to use glibc test framework rather than gcc style tests with __builtin_abort (). Signed-off-by: Jakub Jelinek Reviewed-by: Joseph Myers --- stdlib/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'stdlib/Makefile') diff --git a/stdlib/Makefile b/stdlib/Makefile index d587f054d1..9898cc5d8a 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -308,6 +308,7 @@ tests := \ tst-setcontext10 \ tst-setcontext11 \ tst-stdbit-Wconversion \ + tst-stdbit-builtins \ tst-stdc_bit_ceil \ tst-stdc_bit_floor \ tst-stdc_bit_width \ -- cgit v1.2.3