The following patch fixes the PR. The details can be found on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61360
The patch was bootstrapped and tested on x86/x86-64.
Committed as rev. 215358.
2014-09-18 Vladimir Makarov <[email protected]>
PR target/61360
* lra.c (lra): Call recog_init.
2014-09-18 Vladimir Makarov <[email protected]>
PR target/61360
* gcc.target/i386/pr61360.c: New.
Index: lra.c
===================================================================
--- lra.c (revision 215337)
+++ lra.c (working copy)
@@ -2135,6 +2135,11 @@ lra (FILE *f)
lra_in_progress = 1;
+ /* The enable attributes can change their values as LRA starts
+ although it is a bad practice. To prevent reuse of the outdated
+ values, clear them. */
+ recog_init ();
+
lra_live_range_iter = lra_coalesce_iter = 0;
lra_constraint_iter = lra_constraint_iter_after_spill = 0;
lra_inheritance_iter = lra_undo_inheritance_iter = 0;
Index: testsuite/gcc.target/i386/pr61360.c
===================================================================
--- testsuite/gcc.target/i386/pr61360.c (revision 0)
+++ testsuite/gcc.target/i386/pr61360.c (working copy)
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-march=amdfam10 -O2" } */
+int a, b, c, e, f, g, h;
+long *d;
+__attribute__((cold)) void fn1() {
+ int i = g | 1;
+ for (; g; h++) {
+ for (; a; e++) d[0] = c;
+ if (0.002 * i) break;
+ for (; b; f++) d[h] = 0;
+ }
+}
