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riscv-gcc-1
Commit 1224aecb by Jeff Law
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pa.h (REGISTER_MOVE_COST): Make moving between FP and non-FP register more expensive. 

	* pa.h (REGISTER_MOVE_COST): Make moving between FP and non-FP
	register more expensive.

From-SVN: r3040
parent 6afcfe63
Showing with 5 additions and 3 deletions
gcc/config/pa/pa.h
......@@ -1393,10 +1393,12 @@ while (0)
#define REGISTER_MOVE_COST(CLASS1, CLASS2) \
((((CLASS1 == FP_REGS || CLASS1 == SNAKE_FP_REGS \
|| CLASS1 == HI_SNAKE_FP_REGS) \
&& (CLASS2 == R1_REGS || CLASS2 == GENERAL_REGS)) \
|| ((CLASS1 == R1_REGS || CLASS1 == GENERAL_REGS) \
&& (CLASS2 == R1_REGS || CLASS2 == GENERAL_REGS \
|| CLASS2 == SHIFT_REGS)) \
|| ((CLASS1 == R1_REGS || CLASS1 == GENERAL_REGS \
|| CLASS1 == SHIFT_REGS) \
&& (CLASS2 == FP_REGS || CLASS2 == SNAKE_FP_REGS \
|| CLASS2 == HI_SNAKE_FP_REGS))) ? 6 : 2)
|| CLASS2 == HI_SNAKE_FP_REGS))) ? 16 : 2)
/* Provide the costs of a rtl expression. This is in the body of a
switch on CODE. The purpose for the cost of MULT is to encourage
......
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