i386-protos.h (x86_function_profiler): New function

[gcc.git] / gcc / config / i386 / i386.c

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b02fc4a2092dc970710490e52ab541c1721de108..0ccb62c3213e01742861fe8f693e05866de96ec1 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -14297,6 +14297,46 @@ x86_field_alignment (field, computed)
   return computed;
 }
 
+/* Output assembler code to FILE to increment profiler label # LABELNO
+   for profiling a function entry.  */
+void
+x86_function_profiler (file, labelno)
+     FILE *file;
+     int labelno;
+{
+  if (TARGET_64BIT)
+    if (flag_pic)
+      {
+#ifndef NO_PROFILE_COUNTERS
+       fprintf (file, "\tleaq\t%sP%d@(%%rip),%%r11\n", LPREFIX, labelno);
+#endif
+       fprintf (file, "\tcall\t*%s@GOTPCREL(%%rip)\n", MCOUNT_NAME);
+      }
+    else
+      {
+#ifndef NO_PROFILE_COUNTERS
+       fprintf (file, "\tmovq\t$%sP%d,%%r11\n", LPREFIX, labelno);
+#endif
+       fprintf (file, "\tcall\t%s\n", MCOUNT_NAME);
+      }
+  else if (flag_pic)
+    {
+#ifndef NO_PROFILE_COUNTERS
+      fprintf (file, "\tleal\t%sP%d@GOTOFF(%%ebx),%%%s\n",
+              LPREFIX, labelno, PROFILE_COUNT_REGISTER);
+#endif
+      fprintf (file, "\tcall\t*%s@GOT(%%ebx)\n", MCOUNT_NAME);
+    }
+  else
+    {
+#ifndef NO_PROFILE_COUNTERS
+      fprintf (file, "\tmovl\t$%sP%d,%%$s\n", LPREFIX, labelno,
+              PROFILE_COUNT_REGISTER);
+#endif
+      fprintf (file, "\tcall\t%s\n", MCOUNT_NAME);
+    }
+}
+
 /* Implement machine specific optimizations.  
    At the moment we implement single transformation: AMD Athlon works faster
    when RET is not destination of conditional jump or directly preceeded