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

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* 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
This commit is contained in:
Richard Henderson 2001-06-10 16:15:03 -07:00 • committed by Richard Henderson
parent 76321db654
commit c176c051f8
3 changed files with 21 additions and 17 deletions
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7
gcc/ChangeLog
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@ -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

13
gcc/config/alpha/alpha.c
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@ -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 ();

18
gcc/config/alpha/alpha.h
View file

@ -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