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re PR middle-end/21273 (gensupport.c:collect_insn_data doesn't consider the constraints of match_scratch) 

Fix PR21273

	PR middle-end/21273
	* gensupport.c (collect_insn_data): Look for number of alternatives
	in MATCH_SCRATCH.

From-SVN: r231654
This commit is contained in:
Bernd Schmidt 2015-12-15 14:34:01 +00:00 committed by Bernd Schmidt
parent 72030b28a1
commit b7e2dd6fb4
2 changed files with 8 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-12-15 Bernd Schmidt <bschmidt@redhat.com>
PR middle-end/21273
* gensupport.c (collect_insn_data): Look for number of alternatives
in MATCH_SCRATCH.
2015-12-15 Nathan Sidwell <nathan@acm.org>
* config/nvptx/nvptx.h (HARD_REGNO_NREGS): Reformat.

4
gcc/gensupport.c
View File

@ -1068,12 +1068,12 @@ collect_insn_data (rtx pattern, int *palt, int *pmax)
switch (code)
{
case MATCH_OPERAND:
i = n_alternatives (XSTR (pattern, 2));
case MATCH_SCRATCH:
i = n_alternatives (XSTR (pattern, code == MATCH_SCRATCH ? 1 : 2));
*palt = (i > *palt ? i : *palt);
/* Fall through. */
case MATCH_OPERATOR:
case MATCH_SCRATCH:
case MATCH_PARALLEL:
i = XINT (pattern, 0);
if (i > *pmax)