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| author | Richard Guenther <rguenther@suse.de> | 2012-07-13 09:45:00 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-07-13 09:45:00 +0000 |
| commit | 44fabee4e252d91ea09daf23f7dd1cce3f63abea (patch) | |
| tree | cb3d66ebbf28ef10a1d738a2fabefc36d0431206 | |
| parent | 57cee56a1efe681eac1a5c427f4ffe1c6f4f77cd (diff) | |
| download | gcc-44fabee4e252d91ea09daf23f7dd1cce3f63abea.zip gcc-44fabee4e252d91ea09daf23f7dd1cce3f63abea.tar.gz gcc-44fabee4e252d91ea09daf23f7dd1cce3f63abea.tar.bz2 | |
re PR c/53937 (Pack'ing struct causes gcc to not recognize that an field's address is aligned)
2012-07-13 Richard Guenther <rguenther@suse.de>
PR middle-end/53937
* builtins.c (get_pointer_alignment_1): Handle constant
pointers.
From-SVN: r189458
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/builtins.c | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3bce65c..b317fc5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-07-13 Richard Guenther <rguenther@suse.de> + + PR middle-end/53937 + * builtins.c (get_pointer_alignment_1): Handle constant + pointers. + 2012-07-13 Richard Sandiford <rdsandiford@googlemail.com> Steven Bosscher <steven@gcc.gnu.org> Bernd Schmidt <bernds@codesourcery.com> diff --git a/gcc/builtins.c b/gcc/builtins.c index c12eb29..040f352 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -536,6 +536,13 @@ get_pointer_alignment_1 (tree exp, unsigned int *alignp, return false; } } + else if (TREE_CODE (exp) == INTEGER_CST) + { + *alignp = BIGGEST_ALIGNMENT; + *bitposp = ((TREE_INT_CST_LOW (exp) * BITS_PER_UNIT) + & (BIGGEST_ALIGNMENT - 1)); + return true; + } *bitposp = 0; *alignp = BITS_PER_UNIT; |