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re PR c++/23624 (ICE: internal compiler error: in invert_truthvalue, at fold-const.c:2697)

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2005-09-09  Richard Guenther  <rguenther@suse.de>

	PR c++/23624
	* fold-const.c (fold_ternary): Check truth_value_p before
	calling invert_truthvalue.

	* g++.dg/tree-ssa/pr23624.C: New testcase.

From-SVN: r104083
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Richard Guenther 2005-09-09 09:00:42 +00:00 committed by Richard Biener
parent dcfae47c5e
commit 3dac16bde8
4 changed files with 21 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-09-09 Richard Guenther <rguenther@suse.de>
PR c++/23624
* fold-const.c (fold_ternary): Check truth_value_p before
calling invert_truthvalue.
2005-09-09 Nick Clifton <nickc@redhat.com>
* Makefile.in (LIBGCC_DEPS): Add libgcc2.h.

3
gcc/fold-const.c
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@ -10006,7 +10006,8 @@ fold_ternary (enum tree_code code, tree type, tree op0, tree op1, tree op2)
/* If the second operand is simpler than the third, swap them
since that produces better jump optimization results. */
if (tree_swap_operands_p (op1, op2, false))
if (truth_value_p (TREE_CODE (arg0))
&& tree_swap_operands_p (op1, op2, false))
{
/* See if this can be inverted. If it can't, possibly because
it was a floating-point inequality comparison, don't do

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2005-09-09 Richard Guenther <rguenther@suse.de>
PR c++/23624
* g++.dg/tree-ssa/pr23624.C: New testcase.
2005-09-09 Richard Sandiford <richard@codesourcery.com>
PR fortran/19239

8
gcc/testsuite/g++.dg/tree-ssa/pr23624.C Normal file
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@ -0,0 +1,8 @@
/* { dg-do compile } */
template <int>
void f()
{
int *t, i;
t[i ? 0 : i];
}