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[2/9] Minor refactor in ix86_compute_frame_layout

Message ID 20161115200700.10792-2-daniel.santos@pobox.com
State New
Headers show

Commit Message

Daniel Santos Nov. 15, 2016, 8:06 p.m. UTC 
This refactor is separated from a future patch that actually alters
ix86_compute_frame_layout.
---
 gcc/config/i386/i386.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)
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Patch

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 56cc67d..5ed8fb6 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -12256,6 +12256,7 @@  ix86_builtin_setjmp_frame_value (void)
 static void
 ix86_compute_frame_layout (struct ix86_frame *frame)
 {
+  struct machine_function *m = cfun->machine;
   unsigned HOST_WIDE_INT stack_alignment_needed;
   HOST_WIDE_INT offset;
   unsigned HOST_WIDE_INT preferred_alignment;
@@ -12290,19 +12291,19 @@  ix86_compute_frame_layout (struct ix86_frame *frame)
      scheduling that can be done, which means that there's very little point
      in doing anything except PUSHs.  */
   if (TARGET_SEH)
-    cfun->machine->use_fast_prologue_epilogue = false;
+    m->use_fast_prologue_epilogue = false;
 
   /* During reload iteration the amount of registers saved can change.
      Recompute the value as needed.  Do not recompute when amount of registers
      didn't change as reload does multiple calls to the function and does not
      expect the decision to change within single iteration.  */
   else if (!optimize_bb_for_size_p (ENTRY_BLOCK_PTR_FOR_FN (cfun))
-           && cfun->machine->use_fast_prologue_epilogue_nregs != frame->nregs)
+	   && m->use_fast_prologue_epilogue_nregs != frame->nregs)
     {
       int count = frame->nregs;
       struct cgraph_node *node = cgraph_node::get (current_function_decl);
 
-      cfun->machine->use_fast_prologue_epilogue_nregs = count;
+      m->use_fast_prologue_epilogue_nregs = count;
 
       /* The fast prologue uses move instead of push to save registers.  This
          is significantly longer, but also executes faster as modern hardware
@@ -12319,14 +12320,14 @@  ix86_compute_frame_layout (struct ix86_frame *frame)
       if (node->frequency < NODE_FREQUENCY_NORMAL
 	  || (flag_branch_probabilities
 	      && node->frequency < NODE_FREQUENCY_HOT))
-        cfun->machine->use_fast_prologue_epilogue = false;
+	m->use_fast_prologue_epilogue = false;
       else
-        cfun->machine->use_fast_prologue_epilogue
+	m->use_fast_prologue_epilogue
 	   = !expensive_function_p (count);
     }
 
   frame->save_regs_using_mov
-    = (TARGET_PROLOGUE_USING_MOVE && cfun->machine->use_fast_prologue_epilogue
+    = (TARGET_PROLOGUE_USING_MOVE && m->use_fast_prologue_epilogue
        /* If static stack checking is enabled and done with probes,
 	  the registers need to be saved before allocating the frame.  */
        && flag_stack_check != STATIC_BUILTIN_STACK_CHECK);