* flags.h: New variables align_loops, align_loops_log,

align_jumps, align_jumps_log, align_labels, align_labels_log,
align_functions, align_functions_log.
* toplev.c: Define them.
(f_options): Handle -falign-* when they have no argument.
(main): Add logic to set variables for -falign-functions,
-falign-jumps, -falign-labels, -falign-loops.
Make it -fsched-verbose=<n> and -finline-limit=<n>.
(display_help): Change help to match options.
* final.c (LABEL_ALIGN): Default to align_labels_log.
(LABEL_ALIGN_MAX_SKIP): Default to align_labels-1.
(LOOP_ALIGN): Default to align_loops_log.
(LOOP_ALIGN_MAX_SKIP): Default to align_loops-1.
(LABEL_ALIGN_AFTER_BARRIER): Default to align_jumps_log.
(LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP): Default to align_jumps-1.
* varasm.c (assemble_start_function): Handle align_functions.

* config/sparc/sparc.h: Don't declare sparc_align_*.
Don't provide LABEL_ALIGN_AFTER_BARRIER or LOOP_ALIGN.
(DEFAULT_SPARC_ALIGN_FUNCS): Delete; take functionality into
sparc.c.
(FUNCTION_BOUNDARY): Fix incorrect use---it's not just a request,
it's a promise.
* config/sparc/sparc.c: Delete sparc_align_loops,
sparc_align_jumps, sparc_align_funcs and the corresponding string
variables.
(sparc_override_options): Default align_functions on ultrasparc.
Delete -malign-* handling.

* config/mips/mips.c (override_options):  On 64-bit targets,
try to align code to 64-bit boundaries.
(print_operand): New substitution, %~,
which aligns labels to align_labels_log.
* config/mips/mips.md (div_trap_normal): Use %~.
(div_trap_mips16): Likewise.
(abssi): Likewise.
(absdi2): Likewise.
(ffssi2): Likewise.
(ffsdi2): Likewise.
(ashldi3_internal): Likewise.
(ashrdi3_internal): Likewise.
(lshrdi3_internal): Likewise.
(casesi_internal): Likewise.

Plus corresponding documentation changes.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29045 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/flags.h b/gcc/flags.h
index cbdf9cde151..52914730297 100644
--- a/gcc/flags.h
+++ b/gcc/flags.h
@@ -507,6 +507,20 @@ extern int g_switch_set;
 
 extern int inline_max_insns;
 
+/* Values of the -falign-* flags: how much to align labels in code. 
+   0 means `use default', 1 means `don't align'.  
+   For each variable, there is an _log variant which is the power
+   of two not less than the variable, for .align output.  */
+
+extern int align_loops;
+extern int align_loops_log;
+extern int align_jumps;
+extern int align_jumps_log;
+extern int align_labels;
+extern int align_labels_log;
+extern int align_functions;
+extern int align_functions_log;
+
 /* Nonzero if we dump in VCG format, not plain text.  */
 extern int dump_for_graph;