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re PR tree-optimization/57411 (ICE: verify_ssa failed: definition in block 4 does not dominate use in block 11 with -fno-tree-dce -ftree-vectorize) 

PR tree-optimization/57411
	* tree-vrp.c (simplify_cond_using_ranges): Verify the constant
	operand of the condition will bit into the new type when eliminating
	a cast feeding a condition.

	PR tree-optimization/57411
	* gcc.c-torture/execute/pr57144.c: New test.

From-SVN: r198582
This commit is contained in:
Jeff Law 2013-05-03 10:35:04 -06:00 committed by Jeff Law
parent 47954c4e77
commit a4ee7cb9bf
4 changed files with 33 additions and 1 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2013-05-03 Jeff Law <law@redhat.com>
PR tree-optimization/57411
* tree-vrp.c (simplify_cond_using_ranges): Verify the constant
operand of the condition will bit into the new type when eliminating
a cast feeding a condition.
2013-05-03 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/57130

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2013-05-02 Jeff Law <law@redhat.com>
PR tree-optimization/57411
* gcc.c-torture/execute/pr57144.c: New test.
2013-05-03 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/57130

19
gcc/testsuite/gcc.c-torture/execute/pr57144.c Normal file
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@ -0,0 +1,19 @@
extern void abort (void);
extern void exit (int);
void __attribute__ ((noinline))
foo(int a)
{
int z = a > 0 ? a : -a;
long long x = z;
if (x > 0x100000000LL)
abort ();
else
exit (0);
}
int
main()
{
foo (1);
}

3
gcc/tree-vrp.c
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@ -8668,7 +8668,8 @@ simplify_cond_using_ranges (gimple stmt)
if (range_int_cst_p (vr)
&& range_fits_type_p (vr,
TYPE_PRECISION (TREE_TYPE (op0)),
TYPE_UNSIGNED (TREE_TYPE (op0))))
TYPE_UNSIGNED (TREE_TYPE (op0)))
&& int_fits_type_p (op1, TREE_TYPE (innerop)))
{
tree newconst = fold_convert (TREE_TYPE (innerop), op1);
gimple_cond_set_lhs (stmt, innerop);