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re PR target/23424 (cris.md rtl canonicalization bug) 

PR target/23424
	* md.texi (Modifiers) <%>: Clarify that % doesn't work
	after register allocation.

From-SVN: r105517
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Hans-Peter Nilsson 2005-10-17 20:39:45 +00:00 committed by Hans-Peter Nilsson
parent b3fdec9ea5
commit be3914df4c
2 changed files with 10 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-10-17 Hans-Peter Nilsson <hp@axis.com>
PR target/23424
* md.texi (Modifiers) <%>: Clarify that % doesn't work
after register allocation.
2005-10-17 DJ Delorie <dj@redhat.com>
* config/m32c/m32c.c (m32c_pushm_popm): Don't mark epilogue insns

5
gcc/doc/md.texi
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@ -1552,7 +1552,10 @@ instruction is defined:
GCC can only handle one commutative pair in an asm; if you use more,
the compiler may fail. Note that you need not use the modifier if
the two alternatives are strictly identical; this would only waste
time in the reload pass.
time in the reload pass. The modifier is not operational after
register allocation, so the result of @code{define_peephole2}
and @code{define_split}s performed after reload cannot rely on
@samp{%} to make the intended insn match.
@cindex @samp{#} in constraint
@item #