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re PR c/49644 (post-increment of promoted operand is incorrect.) 

PR c/49644
	* c-typeck.c (build_binary_op): For MULT_EXPR and TRUNC_DIV_EXPR with
	one non-complex and one complex argument, call c_save_expr on both
	operands.

	* gcc.c-torture/execute/pr49644.c: New test.

From-SVN: r176004
This commit is contained in:
Jakub Jelinek 2011-07-07 21:11:27 +02:00 committed by Jakub Jelinek
parent 489319d5aa
commit c4603e7ce0
4 changed files with 30 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2011-07-07 Jakub Jelinek <jakub@redhat.com>
PR c/49644
* c-typeck.c (build_binary_op): For MULT_EXPR and TRUNC_DIV_EXPR with
one non-complex and one complex argument, call c_save_expr on both
operands.
2011-07-07 Martin Jambor <mjambor@suse.cz>
PR middle-end/49495

2
gcc/c-typeck.c
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@ -10040,6 +10040,7 @@ build_binary_op (location_t location, enum tree_code code,
{
case MULT_EXPR:
case TRUNC_DIV_EXPR:
op1 = c_save_expr (op1);
imag = build2 (resultcode, real_type, imag, op1);
/* Fall through. */
case PLUS_EXPR:
@ -10060,6 +10061,7 @@ build_binary_op (location_t location, enum tree_code code,
switch (code)
{
case MULT_EXPR:
op0 = c_save_expr (op0);
imag = build2 (resultcode, real_type, op0, imag);
/* Fall through. */
case PLUS_EXPR:

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-07-07 Jakub Jelinek <jakub@redhat.com>
PR c/49644
* gcc.c-torture/execute/pr49644.c: New test.
2011-07-07 H.J. Lu <hongjiu.lu@intel.com>
* lib/target-supports.exp (check_effective_target_ia32): New.

16
gcc/testsuite/gcc.c-torture/execute/pr49644.c Normal file
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@ -0,0 +1,16 @@
/* PR c/49644 */
extern void abort (void);
int
main ()
{
_Complex double a[12], *c = a, s = 3.0 + 1.0i;
double b[12] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 }, *d = b;
int i;
for (i = 0; i < 6; i++)
*c++ = *d++ * s;
if (c != a + 6 || d != b + 6)
abort ();
return 0;
}