diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/md.texi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index 2b46286..813875b 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -1634,7 +1634,7 @@ constraints with multiple alternatives, sometimes one alternative requires @samp{&} while others do not. See, for example, the @samp{movdf} insn of the 68000. -A operand which is read by the instruction can be tied to an earlyclobber +An operand which is read by the instruction can be tied to an earlyclobber operand if its only use as an input occurs before the early result is written. Adding alternatives of this form often allows GCC to produce better code when only some of the read operands can be affected by the |