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doc: target.def (flags_regnum): Also mention effect on delay slot filling.

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* target.def (flags_regnum): Also mention effect on delay slot filling.
* doc/tm.texi: Regenerate.

Previously only mentioned an effect on compare elimination.
This commit is contained in:
Hans-Peter Nilsson 2020-01-24 06:47:33 +01:00
parent a0b935ac66
commit 9adea9392b
3 changed files with 12 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2020-01-24 Hans-Peter Nilsson <hp@axis.com>
* target.def (flags_regnum): Also mention effect on delay slot filling.
* doc/tm.texi: Regenerate.
2020-01-23 Jeff Law <law@redhat.com>
* config/h8300/h8300.c (h8300_option_override): Fix diagnostic text.

4
gcc/doc/tm.texi
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@ -6532,7 +6532,9 @@ returns @code{VOIDmode}.
@end deftypefn
@deftypevr {Target Hook} {unsigned int} TARGET_FLAGS_REGNUM
If the target has a dedicated flags register, and it needs to use the post-reload comparison elimination pass, then this value should be set appropriately.
If the target has a dedicated flags register, and it needs to use the
post-reload comparison elimination pass, or the delay slot filler pass,
then this value should be set appropriately.
@end deftypevr
@node Costs

8
gcc/target.def
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@ -3716,10 +3716,10 @@ of spill registers and print a fatal error message.",
target is constrainted to use post-reload comparison elimination. */
DEFHOOKPOD
(flags_regnum,
"If the target has a dedicated flags register, and it needs to use the\
post-reload comparison elimination pass, then this value should be set\
appropriately.",
unsigned int, INVALID_REGNUM)
"If the target has a dedicated flags register, and it needs to use the\n\
post-reload comparison elimination pass, or the delay slot filler pass,\n\
then this value should be set appropriately.",
unsigned int, INVALID_REGNUM)
/* Compute a (partial) cost for rtx X. Return true if the complete
cost has been computed, and false if subexpressions should be