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authorMichael Poole <poole@troilus.org>2000-08-15 09:29:31 -0600
committerJeff Law <law@gcc.gnu.org>2000-08-15 09:29:31 -0600
commit7c2720799c132883ff07e297c87e07cbed575787 (patch)
tree4cbc70b3d9ccb6c2910da937d070ccc289dd2227 /gcc
parent7a6bd5ae0eacf36eaf26d37466eb5efe805f0aae (diff)
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tm.texi (Register Classes): Clarify order of sub-initializers in REG_CLASS_CONTENTS.
* tm.texi (Register Classes): Clarify order of sub-initializers in REG_CLASS_CONTENTS. Ho hum... From-SVN: r35718
Diffstat (limited to 'gcc')
-rw-r--r--gcc/tm.texi3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tm.texi b/gcc/tm.texi
index 25cc96c..b6b9316 100644
--- a/gcc/tm.texi
+++ b/gcc/tm.texi
@@ -1828,6 +1828,9 @@ When the machine has more than 32 registers, an integer does not suffice.
Then the integers are replaced by sub-initializers, braced groupings containing
several integers. Each sub-initializer must be suitable as an initializer
for the type @code{HARD_REG_SET} which is defined in @file{hard-reg-set.h}.
+In this situation, the first integer in each sub-initializer corresponds to
+registers 0 through 31, the second integer to registers 32 through 63, and
+so on.
@findex REGNO_REG_CLASS
@item REGNO_REG_CLASS (@var{regno})