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authorBernd Edlinger <bernd.edlinger@hotmail.de>2016-07-21 19:11:26 +0000
committerBernd Edlinger <edlinger@gcc.gnu.org>2016-07-21 19:11:26 +0000
commitcfd97da10d63e1eddd3b901a505056ab342ce46f (patch)
treee87da55ffe8047c857a077c464f26c9b98dd2be0
parent159e8ef0c6673f73ab33ba86dd13652dfdae342c (diff)
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016-07-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR middle-end/71876 * builtin-attrs.def (ATTR_RT_NOTHROW_LEAF_LIST): New return twice attribute. * builtins.def (BUILT_IN_SETJMP): Use ATTR_RT_NOTHROW_LEAF_LIST here. * calls.c (special_function_p): Remove the special handling of the "__builtin_" prefix. From-SVN: r238606
-rw-r--r--gcc/ChangeLog9
-rw-r--r--gcc/builtin-attrs.def2
-rw-r--r--gcc/builtins.def2
-rw-r--r--gcc/calls.c8
4 files changed, 14 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b5b24a0..5b86ead 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,6 +1,15 @@
2016-07-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
PR middle-end/71876
+ * builtin-attrs.def (ATTR_RT_NOTHROW_LEAF_LIST): New return twice
+ attribute.
+ * builtins.def (BUILT_IN_SETJMP): Use ATTR_RT_NOTHROW_LEAF_LIST here.
+ * calls.c (special_function_p): Remove the special handling of the
+ "__builtin_" prefix.
+
+2016-07-21 Bernd Edlinger <bernd.edlinger@hotmail.de>
+
+ PR middle-end/71876
* calls.c (gimple_maybe_alloca_call_p): New function. Return true
if STMT may be an alloca call.
(gimple_alloca_call_p, alloca_call_p): Return only true for the
diff --git a/gcc/builtin-attrs.def b/gcc/builtin-attrs.def
index 9965888..8dc59c9 100644
--- a/gcc/builtin-attrs.def
+++ b/gcc/builtin-attrs.def
@@ -131,6 +131,8 @@ DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LIST, ATTR_NORETURN, \
ATTR_NULL, ATTR_NOTHROW_LIST)
DEF_ATTR_TREE_LIST (ATTR_NORETURN_NOTHROW_LEAF_LIST, ATTR_NORETURN,\
ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
+DEF_ATTR_TREE_LIST (ATTR_RT_NOTHROW_LEAF_LIST, ATTR_RETURNS_TWICE,\
+ ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
DEF_ATTR_TREE_LIST (ATTR_COLD_NOTHROW_LEAF_LIST, ATTR_COLD,\
ATTR_NULL, ATTR_NOTHROW_LEAF_LIST)
DEF_ATTR_TREE_LIST (ATTR_COLD_NORETURN_NOTHROW_LEAF_LIST, ATTR_COLD,\
diff --git a/gcc/builtins.def b/gcc/builtins.def
index 33a7626..1dd095f 100644
--- a/gcc/builtins.def
+++ b/gcc/builtins.def
@@ -837,7 +837,7 @@ DEF_LIB_BUILTIN (BUILT_IN_REALLOC, "realloc", BT_FN_PTR_PTR_SIZE, ATTR_NO
DEF_GCC_BUILTIN (BUILT_IN_RETURN, "return", BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
DEF_GCC_BUILTIN (BUILT_IN_RETURN_ADDRESS, "return_address", BT_FN_PTR_UINT, ATTR_LEAF_LIST)
DEF_GCC_BUILTIN (BUILT_IN_SAVEREGS, "saveregs", BT_FN_PTR_VAR, ATTR_NULL)
-DEF_GCC_BUILTIN (BUILT_IN_SETJMP, "setjmp", BT_FN_INT_PTR, ATTR_NOTHROW_LEAF_LIST)
+DEF_GCC_BUILTIN (BUILT_IN_SETJMP, "setjmp", BT_FN_INT_PTR, ATTR_RT_NOTHROW_LEAF_LIST)
DEF_EXT_LIB_BUILTIN (BUILT_IN_STRFMON, "strfmon", BT_FN_SSIZE_STRING_SIZE_CONST_STRING_VAR, ATTR_FORMAT_STRFMON_NOTHROW_3_4)
DEF_LIB_BUILTIN (BUILT_IN_STRFTIME, "strftime", BT_FN_SIZE_STRING_SIZE_CONST_STRING_CONST_PTR, ATTR_FORMAT_STRFTIME_NOTHROW_3_0)
DEF_GCC_BUILTIN (BUILT_IN_TRAP, "trap", BT_FN_VOID, ATTR_NORETURN_NOTHROW_LEAF_LIST)
diff --git a/gcc/calls.c b/gcc/calls.c
index bb954ef..c04d00f 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -514,14 +514,10 @@ special_function_p (const_tree fndecl, int flags)
&& ! strcmp (name, "alloca"))
flags |= ECF_MAY_BE_ALLOCA;
- /* Disregard prefix _, __, __x or __builtin_. */
+ /* Disregard prefix _, __ or __x. */
if (name[0] == '_')
{
- if (name[1] == '_'
- && name[2] == 'b'
- && !strncmp (name + 3, "uiltin_", 7))
- tname += 10;
- else if (name[1] == '_' && name[2] == 'x')
+ if (name[1] == '_' && name[2] == 'x')
tname += 3;
else if (name[1] == '_')
tname += 2;