(function_prologue): Emit prologue as asm. (override_options): Don't emit rtl for...

From-SVN: r12276

diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index c30b16dd3d1fa04677bb8b4a567f5535a3f5b888..d18d730d7dc7f2dd16b6b7f0211aab742d8d7918 100644 (file)
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -94,6 +94,7 @@ extern int target_flags;
 #define MASK_NO_MOVE           000004000000    /* Don't generate mem->mem */
 #define MASK_NO_PSEUDO         000010000000    /* Move op's args -> pseudos */
 #define MASK_DEBUG_ARG         000020000000    /* Debug function_arg */   
+#define MASK_SCHEDULE_PROLOGUE  000040000000    /* Emit prologue as rtl */
 
 /* Use the floating point instructions */
 #define TARGET_80387 (target_flags & MASK_80387)
@@ -136,6 +137,9 @@ extern int target_flags;
 #define TARGET_NO_WIDE_MULTIPLY (target_flags & MASK_NO_WIDE_MULTIPLY)
 #define TARGET_WIDE_MULTIPLY (!TARGET_NO_WIDE_MULTIPLY)
 
+/* Emit/Don't emit prologue as rtl */
+#define TARGET_SCHEDULE_PROLOGUE (target_flags & MASK_SCHEDULE_PROLOGUE)
+
 /* Debug GO_IF_LEGITIMATE_ADDRESS */
 #define TARGET_DEBUG_ADDR (target_flags & MASK_DEBUG_ADDR)
 
@@ -189,6 +193,8 @@ extern int target_flags;
   { "no-omit-leaf-frame-pointer",-MASK_OMIT_LEAF_FRAME_POINTER },       \
   { "no-wide-multiply",                 MASK_NO_WIDE_MULTIPLY },               \
   { "wide-multiply",           -MASK_NO_WIDE_MULTIPLY },               \
+  { "schedule-prologue",        MASK_SCHEDULE_PROLOGUE },              \
+  { "no-schedule-prologue",    -MASK_SCHEDULE_PROLOGUE },              \
   { "debug-addr",               MASK_DEBUG_ADDR },                     \
   { "no-debug-addr",           -MASK_DEBUG_ADDR },                     \
   { "move",                    -MASK_NO_MOVE },                        \
@@ -196,7 +202,7 @@ extern int target_flags;
   { "debug-arg",                MASK_DEBUG_ARG },                      \
   { "no-debug-arg",            -MASK_DEBUG_ARG },                      \
   SUBTARGET_SWITCHES                                                   \
-  { "", TARGET_DEFAULT}}
+  { "", MASK_SCHEDULE_PROLOGUE | TARGET_DEFAULT}}
 
 /* Which processor to schedule for. The cpu attribute defines a list that
    mirrors this list, so changes to i386.md must be made at the same time.  */