diff --git a/lib/libc/tests/stdio/printfloat_test.c b/lib/libc/tests/stdio/printfloat_test.c --- a/lib/libc/tests/stdio/printfloat_test.c +++ b/lib/libc/tests/stdio/printfloat_test.c @@ -50,7 +50,7 @@ { static uint32_t junk = 0xdeadbeef; uint32_t buf[512]; - int i; + size_t i; for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++) buf[i] = junk; @@ -370,6 +370,37 @@ testfmt("0x1.83p+0", "%.2a", 1.51); } +ATF_TC_WITHOUT_HEAD(subnormal_double); +ATF_TC_BODY(subnormal_double, tc) +{ + /* Regression test for https://bugs.freebsd.org/253847 */ + double positive = __DBL_DENORM_MIN__; + testfmt("4.9406564584124654418e-324", "%20.20g", positive); + testfmt("4.9406564584124654418E-324", "%20.20G", positive); + testfmt("0x1p-1074", "%a", positive); + testfmt("0X1P-1074", "%A", positive); + double negative = -__DBL_DENORM_MIN__; + testfmt("-4.9406564584124654418e-324", "%20.20g", negative); + testfmt("-4.9406564584124654418E-324", "%20.20G", negative); + testfmt("-0x1p-1074", "%a", negative); + testfmt("-0X1P-1074", "%A", negative); +} + +ATF_TC_WITHOUT_HEAD(subnormal_float); +ATF_TC_BODY(subnormal_float, tc) +{ + float positive = __FLT_DENORM_MIN__; + testfmt("1.4012984643248170709e-45", "%20.20g", positive); + testfmt("1.4012984643248170709E-45", "%20.20G", positive); + testfmt("0x1p-149", "%a", positive); + testfmt("0X1P-149", "%A", positive); + float negative = -__FLT_DENORM_MIN__; + testfmt("-1.4012984643248170709e-45", "%20.20g", negative); + testfmt("-1.4012984643248170709E-45", "%20.20G", negative); + testfmt("-0x1p-149", "%a", negative); + testfmt("-0X1P-149", "%A", negative); +} + ATF_TP_ADD_TCS(tp) { @@ -384,6 +415,8 @@ ATF_TP_ADD_TC(tp, decimal_rounding); ATF_TP_ADD_TC(tp, hexadecimal_floating_point); ATF_TP_ADD_TC(tp, hexadecimal_rounding); + ATF_TP_ADD_TC(tp, subnormal_double); + ATF_TP_ADD_TC(tp, subnormal_float); return (atf_no_error()); } diff --git a/sys/arm64/arm64/vm_machdep.c b/sys/arm64/arm64/vm_machdep.c --- a/sys/arm64/arm64/vm_machdep.c +++ b/sys/arm64/arm64/vm_machdep.c @@ -55,7 +55,7 @@ #include <machine/vfp.h> #endif -uint32_t initial_fpcr = VFPCR_DN | VFPCR_FZ; +uint32_t initial_fpcr = VFPCR_DN; #include <dev/psci/psci.h>