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stor-layout.c (do_type_align): New fn, split out from...

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* stor-layout.c (do_type_align): New fn, split out from...
        (layout_decl): ...here.  Do all alignment calculations for
        FIELD_DECLs here.
        (update_alignment_for_field): Not here.
        (start_record_layout, debug_rli): Remove unpadded_align.
        * tree.h (struct record_layout_info_s): Remove unpadded_align.
        * c-decl.c (finish_enum): Don't set DECL_SIZE, DECL_ALIGN
        or DECL_MODE on the CONST_DECLs.
        (finish_struct): Don't mess with DECL_ALIGN.

From-SVN: r72485
This commit is contained in:
Jason Merrill 2003-10-14 14:43:27 -04:00
parent 415c96ca6a
commit 1b4d5fde31
1 changed files with 32 additions and 0 deletions
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32
gcc/testsuite/gcc.dg/pack-test-4.c Normal file
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// PR c/11885
// Bug: flag4 was allocated into the same byte as the other flags.
// { dg-do run }
typedef unsigned char uint8_t;
typedef struct {
uint8_t flag1:2;
uint8_t flag2:1;
uint8_t flag3:1;
uint8_t flag4;
} __attribute__ ((packed)) MyType;
int main (void)
{
MyType a;
MyType *b = &a;
b->flag1 = 0;
b->flag2 = 0;
b->flag3 = 0;
b->flag4 = 0;
b->flag4++;
if (b->flag1 != 0)
abort ();
}