From: rsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sun, 26 Oct 2014 10:41:13 +0000 (+0000)
Subject: gcc/
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=987fc5e7311f9cd878f3fd84181af20db9280ab1;p=thirdparty%2Fgcc.git

gcc/
	* config/mips/mips.c (mips_kernel_reg_p): Replace with...
	(mips_refers_to_kernel_reg_p): ...this new function.
	(mips_expand_prologue): Update accordingly.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216709 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index dae8c32d146b..47b122066ebf 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2014-10-26  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* config/mips/mips.c (mips_kernel_reg_p): Replace with...
+	(mips_refers_to_kernel_reg_p): ...this new function.
+	(mips_expand_prologue): Update accordingly.
+
 2014-10-26  Richard Sandiford  <richard.sandiford@arm.com>
 
 	* config/mips/mips.c (mips_rewrite_small_data_1): Take the context
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 4d16d9b81fa8..dd8a4c591155 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -11045,12 +11045,16 @@ mips_output_probe_stack_range (rtx reg1, rtx reg2)
   return "";
 }
 
-/* A for_each_rtx callback.  Stop the search if *X is a kernel register.  */
+/* Return true if X contains a kernel register.  */
 
-static int
-mips_kernel_reg_p (rtx *x, void *data ATTRIBUTE_UNUSED)
+static bool
+mips_refers_to_kernel_reg_p (const_rtx x)
 {
-  return REG_P (*x) && KERNEL_REG_P (REGNO (*x));
+  subrtx_iterator::array_type array;
+  FOR_EACH_SUBRTX (iter, array, x, NONCONST)
+    if (REG_P (*iter) && KERNEL_REG_P (REGNO (*iter)))
+      return true;
+  return false;
 }
 
 /* Expand the "prologue" pattern.  */
@@ -11322,7 +11326,7 @@ mips_expand_prologue (void)
       rtx_insn *insn;
       for (insn = get_last_insn (); insn != NULL_RTX; insn = PREV_INSN (insn))
 	if (INSN_P (insn)
-	    && for_each_rtx (&PATTERN (insn), mips_kernel_reg_p, NULL))
+	    && mips_refers_to_kernel_reg_p (PATTERN (insn)))
 	  break;
       /* Emit a move from K1 to COP0 Status after insn.  */
       gcc_assert (insn != NULL_RTX);
@@ -11669,7 +11673,7 @@ mips_expand_epilogue (bool sibcall_p)
     {
       for (insn = get_insns (); insn != NULL_RTX; insn = NEXT_INSN (insn))
 	if (INSN_P (insn)
-	    && for_each_rtx (&PATTERN(insn), mips_kernel_reg_p, NULL))
+	    && mips_refers_to_kernel_reg_p (PATTERN (insn)))
 	  break;
       gcc_assert (insn != NULL_RTX);
       /* Insert disable interrupts before the first use of K0 or K1.  */