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riscv-gcc-1
Commit 5119dc13 by Richard Kenner
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(REGISTER_MOVE_COST): Add LINK_OR_CTR_REGS class to expensive moves. 

From-SVN: r8732
parent 34c8be72
Showing with 5 additions and 3 deletions
gcc/config/rs6000/rs6000.h
/* Definitions of target machine for GNU compiler, for IBM RS/6000.
Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
This file is part of GNU CC.
......@@ -541,9 +541,11 @@ extern char *rs6000_cpu_string;
: (CLASS1) == FLOAT_REGS && (CLASS2) != FLOAT_REGS ? 10 \
: (CLASS1) != FLOAT_REGS && (CLASS2) == FLOAT_REGS ? 10 \
: (((CLASS1) == SPECIAL_REGS || (CLASS1) == MQ_REGS \
|| (CLASS1) == LINK_REGS || (CLASS1) == CTR_REGS) \
|| (CLASS1) == LINK_REGS || (CLASS1) == CTR_REGS \
|| (CLASS1) == LINK_OR_CTR_REGS) \
&& ((CLASS2) == SPECIAL_REGS || (CLASS2) == MQ_REGS \
|| (CLASS2) == LINK_REGS || (CLASS2) == CTR_REGS)) ? 10 \
|| (CLASS2) == LINK_REGS || (CLASS2) == CTR_REGS \
|| (CLASS2) == LINK_OR_CTR_REGS)) ? 10 \
: 2)
/* A C expressions returning the cost of moving data of MODE from a register to
......
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