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m68k.c (m68k_tune_flags): New.

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* config/m68k/m68k.c (m68k_tune_flags): New.
	(override_options): Compute m68k_tune_flags.
	(MULL_COST, MULW_COST): Update for various variants of CFV2.
	* config/m68k/m68k.h (TUNE_MAC, TUNE_EMAC): New.

From-SVN: r136711
This commit is contained in:
Kazu Hirata 2008-06-12 16:15:58 +00:00 committed by Kazu Hirata
parent 3ac4c44a58
commit 03b3e2712c
3 changed files with 34 additions and 5 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-06-12 Kazu Hirata <kazu@codesourcery.com>
* config/m68k/m68k.c (m68k_tune_flags): New.
(override_options): Compute m68k_tune_flags.
(MULL_COST, MULW_COST): Update for various variants of CFV2.
* config/m68k/m68k.h (TUNE_MAC, TUNE_EMAC): New.
2008-06-12 Jakub Jelinek <jakub@redhat.com>
PR middle-end/36506

24
gcc/config/m68k/m68k.c
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@ -391,6 +391,9 @@ enum fpu_type m68k_fpu;
/* The set of FL_* flags that apply to the target processor. */
unsigned int m68k_cpu_flags;
/* The set of FL_* flags that apply to the processor to be tuned for. */
unsigned int m68k_tune_flags;
/* Asm templates for calling or jumping to an arbitrary symbolic address,
or NULL if such calls or jumps are not supported. The address is held
in operand 0. */
@ -571,13 +574,23 @@ override_options (void)
/* Set the directly-usable versions of the -mcpu and -mtune settings. */
m68k_cpu = entry->device;
if (m68k_tune_entry)
{
m68k_tune = m68k_tune_entry->microarch;
m68k_tune_flags = m68k_tune_entry->flags;
}
#ifdef M68K_DEFAULT_TUNE
else if (!m68k_cpu_entry && !m68k_arch_entry)
m68k_tune = M68K_DEFAULT_TUNE;
{
enum target_device dev;
dev = all_microarchs[M68K_DEFAULT_TUNE].device;
m68k_tune_flags = all_devices[dev]->flags;
}
#endif
else
{
m68k_tune = entry->microarch;
m68k_tune_flags = entry->flags;
}
/* Set the type of FPU. */
m68k_fpu = (!TARGET_HARD_FLOAT ? FPUTYPE_NONE
@ -2226,13 +2239,18 @@ m68k_rtx_costs (rtx x, int code, int outer_code, int *total)
#define MULL_COST \
(TUNE_68060 ? 2 \
: TUNE_68040 ? 5 \
: TUNE_CFV2 ? 10 \
: (TUNE_CFV2 && TUNE_EMAC) ? 3 \
: (TUNE_CFV2 && TUNE_MAC) ? 4 \
: TUNE_CFV2 ? 8 \
: TARGET_COLDFIRE ? 3 : 13)
#define MULW_COST \
(TUNE_68060 ? 2 \
: TUNE_68040 ? 3 \
: TUNE_68000_10 || TUNE_CFV2 ? 5 \
: TUNE_68000_10 ? 5 \
: (TUNE_CFV2 && TUNE_EMAC) ? 3 \
: (TUNE_CFV2 && TUNE_MAC) ? 2 \
: TUNE_CFV2 ? 8 \
: TARGET_COLDFIRE ? 2 : 8)
#define DIVW_COST \

4
gcc/config/m68k/m68k.h
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@ -269,6 +269,9 @@ along with GCC; see the file COPYING3. If not see
#define TUNE_CFV3 (m68k_tune == ucfv3)
#define TUNE_CFV4 (m68k_tune == ucfv4 || m68k_tune == ucfv4e)
#define TUNE_MAC ((m68k_tune_flags & FL_CF_MAC) != 0)
#define TUNE_EMAC ((m68k_tune_flags & FL_CF_EMAC) != 0)
#define OVERRIDE_OPTIONS override_options()
/* These are meant to be redefined in the host dependent files */
@ -1137,6 +1140,7 @@ extern enum target_device m68k_cpu;
extern enum uarch_type m68k_tune;
extern enum fpu_type m68k_fpu;
extern unsigned int m68k_cpu_flags;
extern unsigned int m68k_tune_flags;
extern const char *m68k_symbolic_call;
extern const char *m68k_symbolic_jump;