alpha.c (override_options): Set align_loops, align_jumps, and align_functions.

        * config/alpha/alpha.c (override_options): Set align_loops,
        align_jumps, and align_functions.
        * config/alpha/alpha.h (FUNCTION_BOUNDARY): Set to 32 bits.
        (LOOP_ALIGN, LABEL_ALIGN_AFTER_BARRIER): Remove.

From-SVN: r43160

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 60c9eab..92a8915 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2001-06-10  Richard Henderson  <rth@redhat.com>
+
+       * config/alpha/alpha.c (override_options): Set align_loops,
+       align_jumps, and align_functions.
+       * config/alpha/alpha.h (FUNCTION_BOUNDARY): Set to 32 bits.
+       (LOOP_ALIGN, LABEL_ALIGN_AFTER_BARRIER): Remove.  
+
 2001-06-11  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
 
        * emit-rtl.c (gen_lowpart_common): Do not assume that SFmode and DFmode

diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index 0bf04cd..f9dc046 100644 (file)
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -342,6 +342,19 @@ override_options ()
   if (!g_switch_set)
     g_switch_value = 8;
 
+  /* Align labels and loops for optimal branching.  */
+  /* ??? Kludge these by not doing anything if we don't optimize and also if
+     we are writing ECOFF symbols to work around a bug in DEC's assembler. */
+  if (optimize > 0 && write_symbols != SDB_DEBUG)
+    {
+      if (align_loops <= 0)
+       align_loops = 16;
+      if (align_jumps <= 0)
+       align_jumps = 16;
+    }
+  if (align_functions <= 0)
+    align_functions = 16;
+
   /* Acquire a unique set number for our register saves and restores.  */
   alpha_sr_alias_set = new_alias_set ();
 

diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h
index c0b96e0..badeaff 100644 (file)
--- a/gcc/config/alpha/alpha.h
+++ b/gcc/config/alpha/alpha.h
@@ -477,7 +477,7 @@ extern const char *alpha_mlat_string;       /* For -mmemory-latency= */
 #define STACK_BOUNDARY 64
 
 /* Allocation boundary (in *bits*) for the code of a function.  */
-#define FUNCTION_BOUNDARY 128
+#define FUNCTION_BOUNDARY 32
 
 /* Alignment of field after `int : 0' in a structure.  */
 #define EMPTY_FIELD_BOUNDARY 64
@@ -488,22 +488,6 @@ extern const char *alpha_mlat_string;      /* For -mmemory-latency= */
 /* A bitfield declared as `int' forces `int' alignment for the struct.  */
 #define PCC_BITFIELD_TYPE_MATTERS 1
 
-/* Align loop starts for optimal branching.  
-
-   ??? Kludge this and the next macro for the moment by not doing anything if
-   we don't optimize and also if we are writing ECOFF symbols to work around
-   a bug in DEC's assembler. */
-
-#define LOOP_ALIGN(LABEL) \
-  (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0)
-
-/* This is how to align an instruction for optimal branching.  On
-   Alpha we'll get better performance by aligning on an octaword
-   boundary.  */
-
-#define LABEL_ALIGN_AFTER_BARRIER(FILE)        \
-  (optimize > 0 && write_symbols != SDB_DEBUG ? 4 : 0)
-
 /* No data type wants to be aligned rounder than this.  */
 #define BIGGEST_ALIGNMENT 128