Christian Joensson <[EMAIL PROTECTED]> writes:
> +===========================GNAT BUG DETECTED==============================+
> | 4.1.0 20050409 (experimental) (sparc-unknown-linux-gnu) GCC error: |
> | tree check: accessed operand 2 of view_convert_expr with 1 operands |
> | in visit_assignment, at tree-ssa-ccp.c:1074 |
That appears to be a long standing bug introduced by this patch:
2004-11-28 Richard Kenner <[EMAIL PROTECTED]>
PR/18664
* tree-ssa-operands.c (build_ssa_operands, case MODIFY_EXPR):
Ignore a VIEW_CONVERT_EXPR on LHS when deciding if must or may def.
* tree-ssa-ccp.c (visit_assignment): If LHS is a VIEW_CONVERT_EXPR,
add an inverse VIEW_CONVERT_EXPR to const_val.
It contains this line:
orig_lhs = TREE_OPERAND (orig_lhs, 1);
But orig_lhs is a VIEW_CONVERT_EXPR which has only one operand.
It's not clear whether this patch is actually connected to PR18664 at all.
Andreas.
--
Andreas Schwab, SuSE Labs, [EMAIL PROTECTED]
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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