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re PR target/69015 (ICE: RTL check: expected code 'code_label', have 'return' in find_cond_trap, at ifcvt.c:3715 with -fno-if-conversion and __builtin_trap()) 

PR target/69015
	* ifcvt.c (find_cond_trap): Give up if returnjump_p (jump).

	* gcc.dg/pr69015.c: New test.

From-SVN: r232020
This commit is contained in:
Jakub Jelinek 2016-01-01 00:51:50 +01:00 committed by Jakub Jelinek
parent 2f883d1c18
commit f1e0620c75
4 changed files with 23 additions and 2 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2016-01-01 Jakub Jelinek <jakub@redhat.com>
PR target/69015
* ifcvt.c (find_cond_trap): Give up if returnjump_p (jump).
Copyright (C) 2016 Free Software Foundation, Inc.

7
gcc/ifcvt.c
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@ -4526,8 +4526,11 @@ find_cond_trap (basic_block test_bb, edge then_edge, edge else_edge)
return FALSE;
/* If the conditional jump is more than just a conditional jump, then
we can not do if-conversion on this block. */
if (! onlyjump_p (jump))
we can not do if-conversion on this block. Give up for returnjump_p,
changing a conditional return followed by unconditional trap for
conditional trap followed by unconditional return is likely not
beneficial and harder to handle. */
if (! onlyjump_p (jump) || returnjump_p (jump))
return FALSE;
/* We must be comparing objects whose modes imply the size. */

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2016-01-01 Jakub Jelinek <jakub@redhat.com>
PR target/69015
* gcc.dg/pr69015.c: New test.
Copyright (C) 2016 Free Software Foundation, Inc.

10
gcc/testsuite/gcc.dg/pr69015.c Normal file
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@ -0,0 +1,10 @@
/* PR target/69015 */
/* { dg-do compile } */
/* { dg-options "-O2 -fno-if-conversion" } */
void
foo (int c)
{
if (c)
__builtin_trap ();
}