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riscv-gcc-1
Commit c31dfe4d by Richard Kenner
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(CLASS_CANNOT_CHANGE_SIZE): New macro. 

From-SVN: r7870
parent 59e2c378
Showing with 5 additions and 0 deletions
gcc/config/alpha/alpha.h
...@@ -584,6 +584,11 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS, ...@@ -584,6 +584,11 @@ enum reg_class { NO_REGS, GENERAL_REGS, FLOAT_REGS, ALL_REGS,
#define CLASS_MAX_NREGS(CLASS, MODE) \ #define CLASS_MAX_NREGS(CLASS, MODE) \
((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
/* If defined, gives a class of registers that cannot be used as the
operand of a SUBREG that changes the size of the object. */
#define CLASS_CANNOT_CHANGE_SIZE FLOAT_REGS
/* Define the cost of moving between registers of various classes. Moving /* Define the cost of moving between registers of various classes. Moving
between FLOAT_REGS and anything else except float regs is expensive. between FLOAT_REGS and anything else except float regs is expensive.
In fact, we make it quite expensive because we really don't want to In fact, we make it quite expensive because we really don't want to
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