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Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index e9c747a..4bcf827 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -1028,6 +1028,12 @@ for the desired alignment (measured in bits). If @code{STACK_BOUNDARY} is also defined, this macro must evaluate to a value equal to or larger than @code{STACK_BOUNDARY}. +@findex FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN +@item FORCE_PREFERRED_STACK_BOUNDARY_IN_MAIN +A C expression that evaluates true if @code{PREFERRED_STACK_BOUNDARY} is +not guaranteed by the runtime and we should emit code to align the stack +at the beginning of @code{main}. + @cindex @code{PUSH_ROUNDING}, interaction with @code{PREFERRED_STACK_BOUNDARY} If @code{PUSH_ROUNDING} is not defined, the stack will always be aligned to the specified boundary. If @code{PUSH_ROUNDING} is defined and specifies |