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| author | H.J. Lu <hongjiu.lu@intel.com> | 2008-10-07 18:45:56 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2008-10-07 11:45:56 -0700 |
| commit | aee857a2f4fbbcf0d3fde1d80c8c40d53b5edab1 (patch) | |
| tree | f586d335f31ec62e37bfd7708d7eb8de993cf531 /gcc/expmed.c | |
| parent | c7c79a09d6abdcfe54b67c54374ca538665152c5 (diff) | |
| download | gcc-aee857a2f4fbbcf0d3fde1d80c8c40d53b5edab1.zip gcc-aee857a2f4fbbcf0d3fde1d80c8c40d53b5edab1.tar.gz gcc-aee857a2f4fbbcf0d3fde1d80c8c40d53b5edab1.tar.bz2 | |
re PR middle-end/37731 (long long may not work correctly on 32bit host)
gcc/
2008-10-07 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37731
* expmed.c (expand_mult): Properly check DImode constant in
CONST_DOUBLE.
gcc/testsuite/
2008-10-07 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37731
* gcc.dg/torture/pr37731-1.c: New.
* gcc.dg/torture/pr37731-2.c: Likewise.
From-SVN: r140947
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index ae5ad0a..5e8d7f3 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -3075,7 +3075,8 @@ expand_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target, { /* If we are multiplying in DImode, it may still be a win to try to work with shifts and adds. */ - if (CONST_DOUBLE_HIGH (op1) == 0) + if (CONST_DOUBLE_HIGH (op1) == 0 + && CONST_DOUBLE_LOW (op1) > 0) coeff = CONST_DOUBLE_LOW (op1); else if (CONST_DOUBLE_LOW (op1) == 0 && EXACT_POWER_OF_2_OR_ZERO_P (CONST_DOUBLE_HIGH (op1))) |