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re PR middle-end/70219 (ICE: in delete_move_and_clobber, at lra-constraints.c:5864 with -O2) 

PR middle-end/70219
	* lra-constraints.c (delete_move_and_clobber): Change assertion
	to also allow dregno == 0.

	* gcc.dg/pr70219.c: New test.

From-SVN: r234201
This commit is contained in:
Jakub Jelinek 2016-03-14 23:19:32 +01:00 committed by Jakub Jelinek
parent 51d4212ae9
commit 79b57d18c6
4 changed files with 30 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2016-03-14 Jakub Jelinek <jakub@redhat.com>
PR middle-end/70219
* lra-constraints.c (delete_move_and_clobber): Change assertion
to also allow dregno == 0.
2016-03-14 Richard Henderson <rth@redhat.com>
PR tree-opt/68714

2
gcc/lra-constraints.c
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@ -5868,7 +5868,7 @@ delete_move_and_clobber (rtx_insn *insn, int dregno)
rtx_insn *prev_insn = PREV_INSN (insn);
lra_set_insn_deleted (insn);
lra_assert (dregno > 0);
lra_assert (dregno >= 0);
if (prev_insn != NULL && NONDEBUG_INSN_P (prev_insn)
&& GET_CODE (PATTERN (prev_insn)) == CLOBBER
&& dregno == get_regno (XEXP (PATTERN (prev_insn), 0)))

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-03-14 Jakub Jelinek <jakub@redhat.com>
PR middle-end/70219
* gcc.dg/pr70219.c: New test.
2016-03-14 Bernd Schmidt <bschmidt@redhat.com>
PR target/70083

18
gcc/testsuite/gcc.dg/pr70219.c Normal file
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@ -0,0 +1,18 @@
/* PR middle-end/70219 */
/* { dg-do compile { target int128 } } */
/* { dg-options "-O1 -w -Wno-psabi" } */
typedef int B __attribute__ ((vector_size (32)));
typedef int D __attribute__ ((vector_size (32)));
typedef long E __attribute__ ((vector_size (32)));
typedef __int128 F;
typedef __int128 G __attribute__ ((vector_size (32)));
F
foo (int a, unsigned b, F c, B d, G e, B f, D g, E h, G i)
{
b /= c;
e /= (G) ~d;
h -= (E){ g[4], e[1], 64, ~f[1] };
return b + e[1] + h[0] + h[1] + i[1];
}