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| author | Paul Brook <paul@codesourcery.com> | 2006-10-23 16:36:51 +0000 |
|---|---|---|
| committer | Paul Brook <pbrook@gcc.gnu.org> | 2006-10-23 16:36:51 +0000 |
| commit | 353293e7f758be575d88aa78edb9ccddb7816cba (patch) | |
| tree | b5a2423de4a0bde33164ad736843458ea9f47818 | |
| parent | 6915c1cea268ed78af4db03fe631e927d63fdf0c (diff) | |
| download | gcc-353293e7f758be575d88aa78edb9ccddb7816cba.zip gcc-353293e7f758be575d88aa78edb9ccddb7816cba.tar.gz gcc-353293e7f758be575d88aa78edb9ccddb7816cba.tar.bz2 | |
stor-layout.c (start_record_layout): maximum_field_alignment overrides STRUCTURE_SIZE_BOUNDARY.
2006-10-23 Paul Brook <paul@codesourcery.com>
gcc/
* stor-layout.c (start_record_layout): maximum_field_alignment
overrides STRUCTURE_SIZE_BOUNDARY.
gcc/testsuite/
* gcc.dg/pragma-pack-5.c: New test.
From-SVN: r117977
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/stor-layout.c | 10 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pragma-pack-5.c | 10 |
4 files changed, 28 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4c022e5..6e9c9f5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-10-23 Paul Brook <paul@codesourcery.com> + + * stor-layout.c (start_record_layout): maximum_field_alignment + overrides STRUCTURE_SIZE_BOUNDARY. + 2006-10-23 Ulrich Weigand <uweigand@de.ibm.com> * config/s390/predicates.md ("bras_sym_operand"): Do not accept diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index d1e18a2..51db310 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -531,7 +531,15 @@ start_record_layout (tree t) #ifdef STRUCTURE_SIZE_BOUNDARY /* Packed structures don't need to have minimum size. */ if (! TYPE_PACKED (t)) - rli->record_align = MAX (rli->record_align, (unsigned) STRUCTURE_SIZE_BOUNDARY); + { + unsigned tmp; + + /* #pragma pack overrides STRUCTURE_SIZE_BOUNDARY. */ + tmp = (unsigned) STRUCTURE_SIZE_BOUNDARY; + if (maximum_field_alignment != 0) + tmp = MIN (tmp, maximum_field_alignment); + rli->record_align = MAX (rli->record_align, tmp); + } #endif rli->offset = size_zero_node; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b5cd901..d6acf66 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2006-10-23 Paul Brook <paul@codesourcery.com> + + * gcc.dg/pragma-pack-5.c: New test. + 2006-10-23 Ulrich Weigand <uweigand@de.ibm.com> * g++.dg/other/s390-1.C: New testcase. diff --git a/gcc/testsuite/gcc.dg/pragma-pack-5.c b/gcc/testsuite/gcc.dg/pragma-pack-5.c new file mode 100644 index 0000000..897686f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pragma-pack-5.c @@ -0,0 +1,10 @@ +/* Check that pragma pack overrides STRUCTURE_SIZE_BOUNDARY. */ +/* { dg-do compile } */ + +#pragma pack(1) +struct S +{ + char a; +}; + +int test[sizeof(struct S) == 1 ? 1: -1]; |