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Patch to fix PR63285
- From: Vladimir Makarov <vmakarov at redhat dot com>
- To: gcc-patches <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 18 Sep 2014 15:15:53 -0400
- Subject: Patch to fix PR63285
- Authentication-results: sourceware.org; auth=none
The following patch fixes PR63285. The details can be found on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63285
The patch was bootstrapped and tested on x86/x86-64.
Committed as rev 215364.
2014-09-18 Vladimir Makarov <vmakarov@redhat.com>
PR debug/63285
* haifa-sched.c (schedule_block): Advance cycle at the end of BB
if advance != 0.
2014-09-18 Vladimir Makarov <vmakarov@redhat.com>
PR debug/63285
* gcc.target/i386/pr63285.c: New test.
Index: haifa-sched.c
===================================================================
--- haifa-sched.c (revision 215337)
+++ haifa-sched.c (working copy)
@@ -6473,7 +6473,7 @@ schedule_block (basic_block *target_bb,
if (ls.modulo_epilogue)
success = true;
end_schedule:
- if (!ls.first_cycle_insn_p)
+ if (!ls.first_cycle_insn_p || advance)
advance_one_cycle ();
perform_replacements_new_cycle ();
if (modulo_ii > 0)
Index: testsuite/gcc.target/i386/pr63285.c
===================================================================
--- testsuite/gcc.target/i386/pr63285.c (revision 0)
+++ testsuite/gcc.target/i386/pr63285.c (working copy)
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fcompare-debug" } */
+
+struct S { int a; };
+struct T { int b, c; } a;
+long b;
+int c, d;
+void bar (int, int);
+void baz (void *, int);
+
+void
+foo (struct S *x, int y, int z, void *f, int *p, struct T *e)
+{
+ while (x)
+ {
+ baz (f, &d > p);
+ if (z & 1)
+ bar (f > (void *) &f, z);
+ }
+ if (c)
+ {
+ asm ("" : "+m" (a) : "i" (0));
+ y--;
+ }
+ if (e->b == e->c)
+ c = y;
+ y--;
+}