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Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 34668f2..074fba2 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -10151,6 +10151,15 @@ The default value of this hook is @code{NULL}, which disables any special allocation. @end deftypefn +@deftypefn {Target Hook} int TARGET_UNSPEC_MAY_TRAP_P (const_rtx @var{x}, unsigned @var{flags}) +This target hook returns nonzero if @var{x}, an @code{unspec} or +@code{unspec_volatile} operation, might cause a trap. Targets can use +this hook to enhance precision of analysis for @code{unspec} and +@code{unspec_volatile} operations. You may call @code{may_trap_p_1} +to analyze inner elements of @var{x} in which case @var{flags} should be +passed along. +@end deftypefn + @deftypefn {Target Hook} void TARGET_SET_CURRENT_FUNCTION (tree @var{decl}) The compiler invokes this hook whenever it changes its current function context (@code{cfun}). You can define this function if |