From 64c0b414201b1a9800d515ae895c19658f53d91f Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Mon, 17 May 1999 01:49:19 +0000 Subject: [PATCH] m68k.c (standard_68881_constant_p): Don't accept -0.0 as valid 68881 constant. * m68k.c (standard_68881_constant_p): Don't accept -0.0 as valid 68881 constant. From-SVN: r26964 --- gcc/ChangeLog | 3 +++ gcc/config/m68k/m68k.c | 4 +++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6460356a5b0..0853d936e33 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -5,6 +5,9 @@ Mon May 17 01:57:37 1999 David Daney 1999-05-17 Andreas Schwab + * m68k.c (standard_68881_constant_p): Don't accept -0.0 as valid + 68881 constant. + * fold-const.c (fold_truthop): When converting a one-bit comparison don't sign extend the constant. diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 344f9b659cb..98f51978ac8 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -2460,9 +2460,11 @@ standard_68881_constant_p (x) REAL_VALUE_FROM_CONST_DOUBLE (r, x); + /* Use REAL_VALUES_IDENTICAL instead of REAL_VALUES_EQUAL so that -0.0 + is rejected. */ for (i = 0; i < 6; i++) { - if (REAL_VALUES_EQUAL (r, values_68881[i])) + if (REAL_VALUES_IDENTICAL (r, values_68881[i])) return (codes_68881[i]); } -- 2.30.2