在__builtin_add_overflow中使用别名是不允许的。__builtin_add_overflow是GCC编译器提供的一个内建函数,用于执行整数加法并检查是否发生溢出。它的原型如下: bool __builtin_add_overflow(type a, type b, type *res); 其中,type可以是int、long、long long等整数类型。__builtin_add_overflow函数...
Date: Tue Jun 11 16:00:31 2024 +0200 i386: Use CMOV in .SAT_{ADD|SUB} expansion for TARGET_CMOV [PR112600] For TARGET_CMOV targets emit insn sequence involving conditonal move. .SAT_ADD: addl %esi, %edi movl $-1, %eax cmovnc %edi, %eax ret .SAT_SUB: subl %esi, %edi m...
ChezScheme 10.0.0 fails to build with Apple Clang versions earlier than 800: c/pb.c:122:10: error: use of unknown builtin '__builtin_add_overflow' [-Wimplicit-function-declaration] case COMMON_INSTR(pb_bin_op_pb_signal_pb_add_pb_register...
问允许在__builtin_add_overflow中使用别名吗？ENPython 是一种广泛使用的编程语言，以其简单、多功能...
我使用__builtin_add_overflow代替__builtin_add_overflow_p你也可以使用__builtin_add_overflow_p来...
Our current implementation for the __builtin_addcll and __builtin_uaddll_overflow above builtins is correct but could be more efficient. This is issue specific to Power 8 and Power 9. The Power 10 codegen is very different due to the new setbc instruction and the codegen shown in this...
01 2024 +0200 builtins: Force SAVE_EXPR for __builtin_{add,sub,mul}_overflow [PR108789] The following testcase is miscompiled, because we use save_expr on the .{ADD,SUB,MUL}_OVERFLOW call we are creating, but if the first two operands are not INTEGER_CSTs (in that case we just ...
[Bug middle-end/108789] __builtin_(add|mul|sub)_overflow methods generate duplicate operations if both operands are const which in turn causes wrong code due to overlapping arguments jakub at gcc dot gnu.org via Gcc-bugs Tue, 04 Jun 2024 03:33:22 -0700 https://gcc.gnu.org/bugzilla/...
[Bug middle-end/108789] __builtin_(add|mul|sub)_overflow methods generate duplicate operations if both operands are const which in turn causes wrong code due to overlapping arguments pinskia at gcc dot gnu.org via Gcc-bugs Mon, 03 Jun 2024 06:59:07 -0700 https://gcc.gnu.org/bugzilla...
__builtin{add,sub}c [PR108789] The following testcase is miscompiled, because we use save_expr on the .{ADD,SUB,MUL}_OVERFLOW call we are creating, but if the first two operands are not INTEGER_CSTs (in that case we just fold it right away) ...