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Add some stdlib builtins 

llvm-svn: 65115
This commit is contained in:
Daniel Dunbar 2009-02-20 06:36:40 +00:00
parent 90669d0500
commit e4be42c17f
2 changed files with 15 additions and 1 deletions
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6
clang/include/clang/AST/Builtins.def
View File

@ -138,6 +138,12 @@ BUILTIN(__builtin_bzero, "vv*z", "n")
BUILTIN(__builtin_memcpy, "v*v*vC*z", "n")
BUILTIN(__builtin_memmove, "v*v*vC*z", "n")
BUILTIN(__builtin_memset, "v*v*iz", "n")
BUILTIN(__builtin_strcat, "c*c*cC*", "nF")
BUILTIN(__builtin_strncat, "c*c*cC*z", "nF")
BUILTIN(__builtin_strcpy, "c*c*cC*", "nF")
BUILTIN(__builtin_strncpy, "c*c*cC*z", "nF")
BUILTIN(__builtin_strchr, "c*cC*i", "nF")
BUILTIN(__builtin_strrchr, "c*cC*i", "nF")
BUILTIN(__builtin_return_address, "v*Ui", "n")
BUILTIN(__builtin_frame_address, "v*Ui", "n")
BUILTIN(__builtin_flt_rounds, "i", "nc")

10
clang/test/CodeGen/builtins.c
View File

@ -77,9 +77,17 @@ int main() {
Q(powif, (1.2f, N));
Q(powil, (1.2f, N));
// Object size checking
// Lib functions
int a, b, n = random(); // Avoid optimizing out.
char s0[10], s1[] = "Hello";
V(strcat, (s0, s1));
V(strncat, (s0, s1, n));
V(strchr, (s0, s1[0]));
V(strrchr, (s0, s1[0]));
V(strcpy, (s0, s1));
V(strncpy, (s0, s1, n));
// Object size checking
V(__memset_chk, (s0, 0, sizeof s0, n));
V(__memcpy_chk, (s0, s1, sizeof s0, n));
V(__memmove_chk, (s0, s1, sizeof s0, n));