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m68k.h (PREFERRED_RELOAD_CLASS): Don't force any FP const_doubles to memory. 

P
        * m68k.h (PREFERRED_RELOAD_CLASS): Don't force any FP const_doubles
        to memory.

From-SVN: r27805
This commit is contained in:
Richard Henderson 1999-06-27 22:23:36 -06:00 committed by Jeff Law
parent 9f81f5231b
commit 9839cd6251
1 changed files with 7 additions and 9 deletions
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16
gcc/config/m68k/m68k.h
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@ -461,6 +461,8 @@ extern int target_flags;
if (TEST_HARD_REG_BIT (x, i)) \
fixed_regs[i] = call_used_regs[i] = 1; \
} \
if (flag_pic) \
fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1 \
}
#endif /* defined SUPPORT_SUN_FPA */
@ -811,10 +813,7 @@ extern enum reg_class regno_reg_class[];
in some cases it is preferable to use a more restrictive class.
On the 68000 series, use a data reg if possible when the
value is a constant in the range where moveq could be used
and we ensure that QImodes are reloaded into data regs.
Also, if a floating constant needs reloading, put it in memory.
Don't do this for !G constants, since all patterns in the md file
expect them to be loaded into a register via fpmovecr. See above. */
and we ensure that QImodes are reloaded into data regs. */
#define PREFERRED_RELOAD_CLASS(X,CLASS) \
((GET_CODE (X) == CONST_INT \
@ -823,11 +822,10 @@ extern enum reg_class regno_reg_class[];
? DATA_REGS \
: (GET_MODE (X) == QImode && (CLASS) != ADDR_REGS) \
? DATA_REGS \
: (GET_CODE (X) == CONST_DOUBLE \
&& GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \
? (! CONST_DOUBLE_OK_FOR_LETTER_P (X, 'G') \
&& (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS) \
? FP_REGS : NO_REGS) \
: (GET_CODE (X) == CONST_DOUBLE \
&& GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT) \
? (TARGET_68881 && (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS) \
? FP_REGS : NO_REGS) \
: (TARGET_PCREL \
&& (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
|| GET_CODE (X) == LABEL_REF)) \