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| author | Eric Botcazou <ebotcazou@adacore.com> | 2008-05-23 16:38:27 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2008-05-23 16:38:27 +0000 |
| commit | a2acd8bf5587e847fad9dfe92113d9448f8552b6 (patch) | |
| tree | fd724c928750b014a011163b0df88051e65e1ab2 /gcc | |
| parent | 4c8125f4de1e413c735193f8f3a7181974d6d3f6 (diff) | |
| download | gcc-a2acd8bf5587e847fad9dfe92113d9448f8552b6.zip gcc-a2acd8bf5587e847fad9dfe92113d9448f8552b6.tar.gz gcc-a2acd8bf5587e847fad9dfe92113d9448f8552b6.tar.bz2 | |
expr.c (highest_pow2_factor): New case.
* expr.c (highest_pow2_factor) <BIT_AND_EXPR>: New case.
From-SVN: r135820
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/expr.c | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cadf9d1..25e09df 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2008-05-23 Eric Botcazou <ebotcazou@adacore.com> + + * expr.c (highest_pow2_factor) <BIT_AND_EXPR>: New case. + 2008-05-23 Steven Munroe <sjmunroe@us.ibm.com> * config/rs6000/darwin-ldouble.c (fmsub): Eliminate the full @@ -6599,6 +6599,13 @@ highest_pow2_factor (const_tree exp) } break; + case BIT_AND_EXPR: + /* The highest power of two of a bit-and expression is the maximum of + that of its operands. We typically get here for a complex LHS and + a constant negative power of two on the RHS to force an explicit + alignment, so don't bother looking at the LHS. */ + return highest_pow2_factor (TREE_OPERAND (exp, 1)); + CASE_CONVERT: case SAVE_EXPR: return highest_pow2_factor (TREE_OPERAND (exp, 0)); |