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re PR tree-optimization/31953 (ICE in set_value_range, at tree-vrp.c:305) 

./:	PR tree-optimization/31953
	* tree-vrp.c (set_value_range_to_value): Add equiv parameter.
	Change all callers.
	(set_value_range_to_null): Call set_value_range_to_value.
	(extract_range_from_comparison): Likewise.
testsuite/:
	PR tree-optimization/31953
	* gcc.c-torture/compile/pr31953.c: New test.

From-SVN: r124823
This commit is contained in:
Ian Lance Taylor 2007-05-18 05:37:27 +00:00 committed by Ian Lance Taylor
parent 0968bb3d1d
commit b60b471172
4 changed files with 40 additions and 11 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2007-05-17 Ian Lance Taylor <iant@google.com>
PR tree-optimization/31953
* tree-vrp.c (set_value_range_to_value): Add equiv parameter.
Change all callers.
(set_value_range_to_null): Call set_value_range_to_value.
(extract_range_from_comparison): Likewise.
2007-05-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* toplev.c (print_version): Output GMP/MPFR version info.

5
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2007-05-17 Ian Lance Taylor <iant@google.com>
PR tree-optimization/31953
* gcc.c-torture/compile/pr31953.c: New test.
2007-05-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/builtins-1.c: Test reentrant gamma functions.

14
gcc/testsuite/gcc.c-torture/compile/pr31953.c Normal file
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@ -0,0 +1,14 @@
struct WView
{
int hexedit_mode:1;
};
toggle_hexedit_mode (struct WView *view)
{
if (view->hexedit_mode)
{
}
else
{
view->hexedit_mode = !view->hexedit_mode;
}
}

24
gcc/tree-vrp.c
View File

@ -358,7 +358,7 @@ set_value_range_to_varying (value_range_t *vr)
infinity when we shouldn't. */
static inline void
set_value_range_to_value (value_range_t *vr, tree val)
set_value_range_to_value (value_range_t *vr, tree val, bitmap equiv)
{
gcc_assert (is_gimple_min_invariant (val));
if (is_overflow_infinity (val))
@ -374,7 +374,7 @@ set_value_range_to_value (value_range_t *vr, tree val)
val = TYPE_MIN_VALUE (TREE_TYPE (val));
}
}
set_value_range (vr, VR_RANGE, val, val, NULL);
set_value_range (vr, VR_RANGE, val, val, equiv);
}
/* Set value range VR to a non-negative range of type TYPE.
@ -418,8 +418,7 @@ set_value_range_to_nonnull (value_range_t *vr, tree type)
static inline void
set_value_range_to_null (value_range_t *vr, tree type)
{
tree zero = build_int_cst (type, 0);
set_value_range (vr, VR_RANGE, zero, zero, vr->equiv);
set_value_range_to_value (vr, build_int_cst (type, 0), vr->equiv);
}
@ -1702,7 +1701,7 @@ extract_range_from_binary_expr (value_range_t *vr, tree expr)
if (TREE_CODE (op0) == SSA_NAME)
vr0 = *(get_value_range (op0));
else if (is_gimple_min_invariant (op0))
set_value_range_to_value (&vr0, op0);
set_value_range_to_value (&vr0, op0, NULL);
else
set_value_range_to_varying (&vr0);
@ -1710,7 +1709,7 @@ extract_range_from_binary_expr (value_range_t *vr, tree expr)
if (TREE_CODE (op1) == SSA_NAME)
vr1 = *(get_value_range (op1));
else if (is_gimple_min_invariant (op1))
set_value_range_to_value (&vr1, op1);
set_value_range_to_value (&vr1, op1, NULL);
else
set_value_range_to_varying (&vr1);
@ -2107,7 +2106,7 @@ extract_range_from_unary_expr (value_range_t *vr, tree expr)
if (TREE_CODE (op0) == SSA_NAME)
vr0 = *(get_value_range (op0));
else if (is_gimple_min_invariant (op0))
set_value_range_to_value (&vr0, op0);
set_value_range_to_value (&vr0, op0, NULL);
else
set_value_range_to_varying (&vr0);
@ -2490,7 +2489,7 @@ extract_range_from_cond_expr (value_range_t *vr, tree expr)
if (TREE_CODE (op0) == SSA_NAME)
vr0 = *(get_value_range (op0));
else if (is_gimple_min_invariant (op0))
set_value_range_to_value (&vr0, op0);
set_value_range_to_value (&vr0, op0, NULL);
else
set_value_range_to_varying (&vr0);
@ -2498,7 +2497,7 @@ extract_range_from_cond_expr (value_range_t *vr, tree expr)
if (TREE_CODE (op1) == SSA_NAME)
vr1 = *(get_value_range (op1));
else if (is_gimple_min_invariant (op1))
set_value_range_to_value (&vr1, op1);
set_value_range_to_value (&vr1, op1, NULL);
else
set_value_range_to_varying (&vr1);
@ -2528,7 +2527,10 @@ extract_range_from_comparison (value_range_t *vr, tree expr)
its type may be different from _Bool. Convert VAL to EXPR's
type. */
val = fold_convert (TREE_TYPE (expr), val);
set_value_range (vr, VR_RANGE, val, val, vr->equiv);
if (is_gimple_min_invariant (val))
set_value_range_to_value (vr, val, vr->equiv);
else
set_value_range (vr, VR_RANGE, val, val, vr->equiv);
}
else
/* The result of a comparison is always true or false. */
@ -2562,7 +2564,7 @@ extract_range_from_expr (value_range_t *vr, tree expr)
else if (TREE_CODE_CLASS (code) == tcc_comparison)
extract_range_from_comparison (vr, expr);
else if (is_gimple_min_invariant (expr))
set_value_range_to_value (vr, expr);
set_value_range_to_value (vr, expr, NULL);
else
set_value_range_to_varying (vr);