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-rw-r--r--gcc/go/go-gcc.cc22
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc
index 13407ea5d37..a332831b310 100644
--- a/gcc/go/go-gcc.cc
+++ b/gcc/go/go-gcc.cc
@@ -692,6 +692,28 @@ Gcc_backend::Gcc_backend()
NULL_TREE),
false, false);
+ // Used by runtime/internal/sys.
+ this->define_builtin(BUILT_IN_CTZ, "__builtin_ctz", "ctz",
+ build_function_type_list(integer_type_node,
+ unsigned_type_node,
+ NULL_TREE),
+ true, false);
+ this->define_builtin(BUILT_IN_CTZLL, "__builtin_ctzll", "ctzll",
+ build_function_type_list(integer_type_node,
+ long_long_unsigned_type_node,
+ NULL_TREE),
+ true, false);
+ this->define_builtin(BUILT_IN_BSWAP32, "__builtin_bswap32", "bswap32",
+ build_function_type_list(uint32_type_node,
+ uint32_type_node,
+ NULL_TREE),
+ true, false);
+ this->define_builtin(BUILT_IN_BSWAP64, "__builtin_bswap64", "bswap64",
+ build_function_type_list(uint64_type_node,
+ uint64_type_node,
+ NULL_TREE),
+ true, false);
+
// We provide some functions for the math library.
tree math_function_type = build_function_type_list(double_type_node,
double_type_node,