[ARM] Fix checking RTL error in cortex_a9_sched_adjust_cost

	* config/arm/arm.c (cortex_a9_sched_adjust_cost): Use reg_set_p to
	check for dependencies.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229583 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index adbd98e..c7e7fe1 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       * config/arm/arm.c (cortex_a9_sched_adjust_cost): Use reg_set_p to
+       check for dependencies.
+
 2015-10-30  Richard Sandiford  <richard.sandiford@arm.com>
 
        * tree-ssa-math-opts.c (pass_cse_sincos::execute): Don't free

diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 7c72a81..4310638 100644 (file)
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -11610,9 +11610,7 @@ cortex_a9_sched_adjust_cost (rtx_insn *insn, rtx link, rtx_insn *dep, int * cost
                       case. However this gets modeled as an true
                       dependency and hence all these checks.  */
                    if (REG_P (SET_DEST (PATTERN (insn)))
-                       && REG_P (SET_DEST (PATTERN (dep)))
-                       && reg_overlap_mentioned_p (SET_DEST (PATTERN (insn)),
-                                                   SET_DEST (PATTERN (dep))))
+                       && reg_set_p (SET_DEST (PATTERN (insn)), dep))
                      {
                        /* FMACS is a special case where the dependent
                           instruction can be issued 3 cycles before