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| author | Richard Henderson <rth@redhat.com> | 2003-04-22 16:17:46 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2003-04-22 16:17:46 -0700 |
| commit | 4da2eb6b9026e71f167204bc7ced622f44c70a1e (patch) | |
| tree | 61fac5e9044077ae9018c6ffa6b7ab8c07fde408 /gcc/doc/rtl.texi | |
| parent | c1238896d34055a41d31f4e5b6a9678759eb8500 (diff) | |
| download | gcc-4da2eb6b9026e71f167204bc7ced622f44c70a1e.zip gcc-4da2eb6b9026e71f167204bc7ced622f44c70a1e.tar.gz gcc-4da2eb6b9026e71f167204bc7ced622f44c70a1e.tar.bz2 | |
re PR middle-end/8866 (Bug in switch statement code generation -- missing label)
PR 8866
* rtl.h (MEM_NOTRAP_P): New.
(MEM_COPY_ATTRIBUTES): Copy it.
* rtlanal.c (may_trap_p): Check it.
* expr.c (do_tablejump): Set it.
* doc/rtl.texi (Flags): Document it.
* cfgrtl.c (try_redirect_by_replacing_jump): Revert last three changes.
From-SVN: r65967
Diffstat (limited to 'gcc/doc/rtl.texi')
| -rw-r--r-- | gcc/doc/rtl.texi | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index 8368b49..8a97a5d 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -630,6 +630,13 @@ In @code{mem}, @code{asm_operands}, and @code{asm_input} expressions, nonzero for volatile memory references. Stored in the @code{volatil} field and printed as @samp{/v}. +@findex MEM_NOTRAP_P +@cindex @code{mem} and @samp{/c} +@cindex @code{call}, in @code{mem} +@item MEM_NOTRAP_P (@var{x}) +In @code{mem}, nonzero for memory references that will not trap. +Stored in the @code{call} field and printed as @samp{/c}. + @findex REG_FUNCTION_VALUE_P @cindex @code{reg} and @samp{/i} @cindex @code{integrated}, in @code{reg} @@ -847,7 +854,7 @@ These are the fields to which the above macros refer: @findex call @cindex @samp{/c} in RTL dump @item call -This flag is currently unused. +In a @code{mem}, 1 means that the memory reference will not trap. In an RTL dump, this flag is represented as @samp{/c}. |