re PR target/41399 (Scheduler gives huge dependence graph compiling fortran/intrinsic.c on ARM)

2010-02-01  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/41399
	* sched-deps.c (sched_analyze_insn): Ignore fixed registers for
	implicitly set registers.

From-SVN: r156431

gcc/ChangeLog

+2010-02-01  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR target/41399
+	* sched-deps.c (sched_analyze_insn): Ignore fixed registers for
+	implicitly set registers.
+
 2010-02-01  Richard Earnshaw  <rearnsha@arm.com>
 
 	* arm.c (FL_FOR_ARCH_7A): is also a superset of ARMv6K.

gcc/sched-deps.c

@@ -2623,6 +2623,7 @@ sched_analyze_insn (struct deps *deps, rtx x, rtx insn)
       extract_insn (insn);
       preprocess_constraints ();
       ira_implicitly_set_insn_hard_regs (&temp);
+      AND_COMPL_HARD_REG_SET (temp, ira_no_alloc_regs);
       IOR_HARD_REG_SET (implicit_reg_pending_clobbers, temp);
     }