From 7f21d440de1553836ad853bdd338fa45caafaf00 Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Fri, 27 May 1994 23:29:18 +0000 Subject: toplev.c (compile_file): Call init_regs after `word_mode' is valid. * toplev.c (compile_file): Call init_regs after `word_mode' is valid. * regclass.c (init_reg_modes): If choose_hard_reg_mode can't find a valid mode, fall back to word_mode. From-SVN: r7379 --- gcc/regclass.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'gcc/regclass.c') diff --git a/gcc/regclass.c b/gcc/regclass.c index 2c2c36ff5..bef30ab 100644 --- a/gcc/regclass.c +++ b/gcc/regclass.c @@ -402,7 +402,18 @@ init_reg_modes () register int i; for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) - reg_raw_mode[i] = choose_hard_reg_mode (i, 1); + { + reg_raw_mode[i] = choose_hard_reg_mode (i, 1); + + /* If we couldn't find a valid mode, fall back to `word_mode'. + ??? We assume `word_mode' has already been initialized. + ??? One situation in which we need to do this is on the mips where + HARD_REGNO_NREGS (fpreg, [SD]Fmode) returns 2. Ideally we'd like + to use DF mode for the even registers and VOIDmode for the odd + (for the cpu models where the odd ones are inaccessable). */ + if (reg_raw_mode[i] == VOIDmode) + reg_raw_mode[i] = word_mode; + } } /* Finish initializing the register sets and -- cgit v1.1