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Diffstat (limited to 'gcc-4.4.3/gcc/doc/md.texi')
-rw-r--r-- | gcc-4.4.3/gcc/doc/md.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc-4.4.3/gcc/doc/md.texi b/gcc-4.4.3/gcc/doc/md.texi index cdfe379fb..6b3ca0a9d 100644 --- a/gcc-4.4.3/gcc/doc/md.texi +++ b/gcc-4.4.3/gcc/doc/md.texi @@ -7504,6 +7504,11 @@ be ignored for this case. The additional guard is necessary to recognize complicated bypasses, e.g.@: when the consumer is only an address of insn @samp{store} (not a stored value). +If there are more one bypass with the same output and input insns, the +chosen bypass is the first bypass with a guard in description whose +guard function returns nonzero. If there is no such bypass, then +bypass without the guard function is chosen. + @findex exclusion_set @findex presence_set @findex final_presence_set |