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(reload) [SMALL_REGISTER_CLASSES]: When adding an extra need if the insn uses the function value return register...

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(reload) [SMALL_REGISTER_CLASSES]: When adding an extra
need if the insn uses the function value return register,
likewise add an extra single-reg need for each class in which
the insn needs a group.

From-SVN: r3141
This commit is contained in:
Richard Stallman 1993-01-07 05:42:33 +00:00
parent 8bfd209472
commit 9e859f7e00
1 changed files with 4 additions and 6 deletions
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10
gcc/reload1.c
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@ -1299,14 +1299,12 @@ reload (first, global, dumpfile)
for (i = 0; i < N_REG_CLASSES; i++) for (i = 0; i < N_REG_CLASSES; i++)
if (TEST_HARD_REG_BIT (reg_class_contents[i], r)) if (TEST_HARD_REG_BIT (reg_class_contents[i], r))
{ {
if (insn_needs[i] > 0) /* ??? It's not clear what is really
right to do if this insn needs a group.
But maybe that cannot happen. */
if (insn_needs[i] > 0 || insn_groups[i] > 0)
insn_needs[i]++; insn_needs[i]++;
if (insn_groups[i] > 0
&& nregs > 1)
inc_groups = 1;
} }
if (inc_groups)
insn_groups[i]++;
} }
#endif /* SMALL_REGISTER_CLASSES */ #endif /* SMALL_REGISTER_CLASSES */