From: echristo Date: Wed, 2 May 2007 21:57:50 +0000 (+0000) Subject: 2007-05-02 Eric Christopher X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=dd97b5e44d5287ad62c24e81cd2c3ee8a8b954b0 2007-05-02 Eric Christopher * gcc.dg/cpp/if-div.c: New file. 2007-05-02 Eric Christopher * expr.c (num_div_op): Don't overflow if the result is zero. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124358 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d8493a1f3a9..d2918d77262 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2007-05-02 Eric Christopher + + * gcc.dg/cpp/if-div.c: New file. + 2007-05-02 Tom Tromey PR preprocessor/28709: @@ -47,9 +51,9 @@ 2007-05-01 Dorit Nuzman PR testsuite/31589 - * gcc.dg/vect/vect-iv-9.c: Added vect_int_mult target keyword to + * gcc.dg/vect/vect-iv-9.c: Added vect_int_mult target keyword to dg-final test. - * gcc.dg/vect/vect-reduc-dot-u16b.c: Added vect_pack_trunc target + * gcc.dg/vect/vect-reduc-dot-u16b.c: Added vect_pack_trunc target keyword to dg-final test. * gcc.dg/vect/vect-iv-4.c: Likewise. * gcc.dg/vect/vect-widen-mult-u16.c: Likewise. @@ -58,7 +62,7 @@ * gcc.dg/vect/vect-reduc-dot-u16a.c: Change variable type to avoid a cast. * gcc.dg/vect/no-section-anchors-vect-69.c: xfail on is64. - * lib/target-supports.exp + * lib/target-supports.exp (check_effective_target_vect_widen_sum_hi_to_si): Added ia64. (check_effective_target_vect_widen_sum_qi_to_hi): Added ia64. @@ -263,7 +267,7 @@ Olga Golovanevsky * g++.dg/other/str_empty.C: New test. - + 2007-04-24 Richard Henderson * gcc.dg/vect/vect.exp: Don't run tests on Alpha. diff --git a/gcc/testsuite/gcc.dg/cpp/if-div.c b/gcc/testsuite/gcc.dg/cpp/if-div.c new file mode 100644 index 00000000000..4e42168124f --- /dev/null +++ b/gcc/testsuite/gcc.dg/cpp/if-div.c @@ -0,0 +1,6 @@ +/* { dg-do preprocess } */ + +/* Test that this preprocesses without error. */ + +#if (-1)/2 +#endif diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index 0193de47cf3..cc5a71692c7 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,8 @@ +2007-05-02 Eric Christopher + + * expr.c (num_div_op): Don't overflow if the result is + zero. + 2007-05-02 Tom Tromey PR preprocessor/28709: diff --git a/libcpp/expr.c b/libcpp/expr.c index 574b85ff656..a00614026c2 100644 --- a/libcpp/expr.c +++ b/libcpp/expr.c @@ -91,7 +91,7 @@ interpret_float_suffix (const uchar *s, size_t len) case 'l': case 'L': l++; break; case 'i': case 'I': case 'j': case 'J': i++; break; - case 'd': case 'D': + case 'd': case 'D': /* Disallow fd, ld suffixes. */ if (d && (f || l)) return 0; @@ -441,7 +441,7 @@ append_digit (cpp_num num, int digit, int base, size_t precision) if (add_low + digit < add_low) add_high++; add_low += digit; - + if (result.low + add_low < result.low) add_high++; if (result.high + add_high < result.high) @@ -1527,7 +1527,8 @@ num_div_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op) { if (negate) result = num_negate (result, precision); - result.overflow = num_positive (result, precision) ^ !negate; + result.overflow = (num_positive (result, precision) ^ !negate + && !num_zerop (result)); } return result;