From: hp Date: Mon, 17 Oct 2005 20:39:45 +0000 (+0000) Subject: PR target/23424 X-Git-Tag: upstream/4.9.2~58140 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=08511dc1e556f24d1f715bd503cc9a76342e183f;p=platform%2Fupstream%2Flinaro-gcc.git PR target/23424 * md.texi (Modifiers) <%>: Clarify that % doesn't work after register allocation. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@105517 138bc75d-0d04-0410-961f-82ee72b054a4 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3bcd51c..ef2f059 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2005-10-17 Hans-Peter Nilsson + + PR target/23424 + * md.texi (Modifiers) <%>: Clarify that % doesn't work + after register allocation. + 2005-10-17 DJ Delorie * config/m32c/m32c.c (m32c_pushm_popm): Don't mark epilogue insns diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index 8bbc2d8..36b0273 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -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 #