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| author | Ian Lance Taylor <iant@google.com> | 2009-12-30 04:27:55 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2009-12-30 04:27:55 +0000 |
| commit | f6c1336cbe8141888509784439820059577d71e6 (patch) | |
| tree | 03d1858f5536ff744bb7faa4ecf0079b08f752d4 | |
| parent | 53bc54ecc08c35b05c33cf3493c90af73bcc6478 (diff) | |
| download | gcc-f6c1336cbe8141888509784439820059577d71e6.zip gcc-f6c1336cbe8141888509784439820059577d71e6.tar.gz gcc-f6c1336cbe8141888509784439820059577d71e6.tar.bz2 | |
re PR middle-end/42099 (Error in 64-bit division for 32-bit target)
./: PR middle-end/42099
* expmed.c (expand_divmod): Don't shift HOST_WIDE_INT value more
than HOST_BITS_PER_WIDE_INT.
testsuite/:
PR middle-end/42099
* gcc.c-torture/execute/20091229-1.c: New test.
From-SVN: r155516
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expmed.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20091229-1.c | 2 |
4 files changed, 15 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a1160cf..6160bfc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-12-29 Ian Lance Taylor <iant@google.com> + + PR middle-end/42099 + * expmed.c (expand_divmod): Don't shift HOST_WIDE_INT value more + than HOST_BITS_PER_WIDE_INT. + 2009-12-29 H.J. Lu <hongjiu.lu@intel.com> * config/i386/i386.c (ix86_expand_int_vcond): Reformat. diff --git a/gcc/expmed.c b/gcc/expmed.c index d51b454..d1fea08 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -4194,7 +4194,8 @@ expand_divmod (int rem_flag, enum tree_code code, enum machine_mode mode, else if (d == -1) quotient = expand_unop (compute_mode, neg_optab, op0, tquotient, 0); - else if (abs_d == (unsigned HOST_WIDE_INT) 1 << (size - 1)) + else if (HOST_BITS_PER_WIDE_INT >= size + && abs_d == (unsigned HOST_WIDE_INT) 1 << (size - 1)) { /* This case is not handled correctly below. */ quotient = emit_store_flag (tquotient, EQ, op0, op1, diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 8be8a06..9afb291 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2009-12-29 Ian Lance Taylor <iant@google.com> + + PR middle-end/42099 + * gcc.c-torture/execute/20091229-1.c: New test. + 2009-12-29 Janus Weil <janus@gcc.gnu.org> PR fortran/42517 diff --git a/gcc/testsuite/gcc.c-torture/execute/20091229-1.c b/gcc/testsuite/gcc.c-torture/execute/20091229-1.c new file mode 100644 index 0000000..08d952f --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20091229-1.c @@ -0,0 +1,2 @@ +long long foo(long long v) { return v / -0x080000000LL; } +void main() { if (foo(0x080000000LL) != -1) abort(); exit (0); } |