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Better spill failure messages.

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From-SVN: r31026
This commit is contained in:
Bernd Schmidt 1999-12-19 17:39:15 +00:00 committed by Bernd Schmidt
parent 7cfc1daaf8
commit ecf3151a7b
2 changed files with 17 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
1999-12-19 Bernd Schmidt <bernds@cygnus.co.uk>
* reload1.c (spill_failure): Take class of failed reload as argument
and print it. Caller changed.
Sun Dec 19 07:50:42 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* rs6000.h (SUBTARGET_DEFAULT): New macro.

17
gcc/reload1.c
View File

@ -375,7 +375,7 @@ static void find_reload_regs PROTO((struct insn_chain *, FILE *));
static void select_reload_regs PROTO((FILE *));
static void delete_caller_save_insns PROTO((void));
static void spill_failure PROTO((rtx));
static void spill_failure PROTO((rtx, enum reg_class));
static void count_spilled_pseudo PROTO((int, int, int));
static void delete_dead_insn PROTO((rtx));
static void alter_reg PROTO((int, int));
@ -1720,7 +1720,7 @@ find_reload_regs (chain, dumpfile)
&& rld[r].regno == -1)
if (! find_reg (chain, i, dumpfile))
{
spill_failure (chain->insn);
spill_failure (chain->insn, rld[r].class);
failure = 1;
return;
}
@ -1787,13 +1787,20 @@ delete_caller_save_insns ()
INSN should be one of the insns which needed this particular spill reg. */
static void
spill_failure (insn)
spill_failure (insn, class)
rtx insn;
enum reg_class class;
{
static const char *const reg_class_names[] = REG_CLASS_NAMES;
if (asm_noperands (PATTERN (insn)) >= 0)
error_for_asm (insn, "`asm' needs too many reloads");
error_for_asm (insn, "Can't find a register in class `%s' while reloading `asm'.",
reg_class_names[class]);
else
fatal_insn ("Unable to find a register to spill.", insn);
{
error ("Unable to find a register to spill in class `%s'.",
reg_class_names[class]);
fatal_insn ("This is the insn:", insn);
}
}
/* Delete an unneeded INSN and any previous insns who sole purpose is loading