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optabs.c (prepare_operand): Gracefully fail if the mode of X does not match the operand mode expected by... 

* optabs.c (prepare_operand): Gracefully fail if the mode of X
	does not match the operand mode expected by the insn pattern.

From-SVN: r217501
This commit is contained in:
Ulrich Weigand 2014-11-13 14:13:53 +00:00 committed by Ulrich Weigand
parent d64ae6140f
commit 6fad471b8f
2 changed files with 9 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2014-11-13 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* optabs.c (prepare_operand): Gracefully fail if the mode of X
does not match the operand mode expected by the insn pattern.
2014-11-13 Richard Biener <rguenther@suse.de>
* match.pd: Add tcc_comparison, inverted_tcc_comparison

5
gcc/optabs.c
View File

@ -4308,9 +4308,12 @@ prepare_operand (enum insn_code icode, rtx x, int opnum, machine_mode mode,
if (!insn_operand_matches (icode, opnum, x))
{
machine_mode op_mode = insn_data[(int) icode].operand[opnum].mode;
if (reload_completed)
return NULL_RTX;
x = copy_to_mode_reg (insn_data[(int) icode].operand[opnum].mode, x);
if (GET_MODE (x) != op_mode && GET_MODE (x) != VOIDmode)
return NULL_RTX;
x = copy_to_mode_reg (op_mode, x);
}
return x;