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Diffstat (limited to 'gcc/tree-ssa.c')
| -rw-r--r-- | gcc/tree-ssa.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index 30c6269..247fa07 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -1300,6 +1300,10 @@ non_rewritable_lvalue_p (tree lhs) || (INTEGRAL_TYPE_P (TREE_TYPE (lhs)) && (TYPE_PRECISION (TREE_TYPE (decl)) >= TYPE_PRECISION (TREE_TYPE (lhs))))) + /* Make sure we are not re-writing non-float copying into float + copying as that can incur normalization. */ + && (! FLOAT_TYPE_P (TREE_TYPE (decl)) + || types_compatible_p (TREE_TYPE (lhs), TREE_TYPE (decl))) && (TREE_THIS_VOLATILE (decl) == TREE_THIS_VOLATILE (lhs))) return false; |