From 4b66dfb9030fa6d9912fcf3dfbe3fa8a4fa0a3fc Mon Sep 17 00:00:00 2001 From: obrien Date: Mon, 1 Nov 1999 08:28:22 +0000 Subject: Virgin import of the GCC 2.95.2 compilers --- contrib/gcc/cse.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'contrib/gcc/cse.c') diff --git a/contrib/gcc/cse.c b/contrib/gcc/cse.c index 45613ed..7182b74 100644 --- a/contrib/gcc/cse.c +++ b/contrib/gcc/cse.c @@ -5861,7 +5861,15 @@ fold_rtx (x, insn) hence not save anything) or be incorrect. */ if (const_arg1 != 0 && GET_CODE (const_arg1) == CONST_INT && INTVAL (const_arg1) < 0 - && - INTVAL (const_arg1) >= 0 + /* This used to test + + - INTVAL (const_arg1) >= 0 + + But The Sun V5.0 compilers mis-compiled that test. So + instead we test for the problematic value in a more direct + manner and hope the Sun compilers get it correct. */ + && INTVAL (const_arg1) != + ((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT - 1)) && GET_CODE (folded_arg1) == REG) { rtx new_const = GEN_INT (- INTVAL (const_arg1)); -- cgit v1.1