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re PR middle-end/27724 (internal compiler error: no-op convert from 4 to 8 bytes in initializer)

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PR middle-end/27724
        * varasm.c (output_constant): Only strip actual no-op conversions.

From-SVN: r116777
This commit is contained in:
Jason Merrill 2006-09-08 01:11:40 -04:00 committed by Jason Merrill
parent 158d56c4e2
commit df20ea24f9
3 changed files with 24 additions and 4 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
2006-09-07 Jason Merrill <jason@redhat.com>
PR middle-end/27724
* varasm.c (output_constant): Only strip actual no-op conversions.
PR target/13685
* config/i386/i386.c (override_options): Use 128-bit
stack boundary if -msse.

17
gcc/testsuite/gcc.dg/long-long-cst1.c Normal file
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@ -0,0 +1,17 @@
/* PR middle-end/27724 */
/* { dg-do run } */
/* { dg-options "" } */
extern void abort();
struct st{
int _mark;
};
unsigned long long t = ((int)&(((struct st*)16)->_mark) - 32);
int main()
{
if (t != (unsigned long long)(int)-16)
abort ();
}

8
gcc/varasm.c
View File

@ -4039,10 +4039,10 @@ output_constant (tree exp, unsigned HOST_WIDE_INT size, unsigned int align)
if (type_size > op_size
&& TREE_CODE (exp) != VIEW_CONVERT_EXPR
&& TREE_CODE (TREE_TYPE (exp)) != UNION_TYPE)
internal_error ("no-op convert from %wd to %wd bytes in initializer",
op_size, type_size);
exp = TREE_OPERAND (exp, 0);
/* Keep the conversion. */
break;
else
exp = TREE_OPERAND (exp, 0);
}
code = TREE_CODE (TREE_TYPE (exp));