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| author | Dávid Bolvanský <david.bolvansky@gmail.com> | 2019-10-27 15:57:54 +0100 |
|---|---|---|
| committer | Dávid Bolvanský <david.bolvansky@gmail.com> | 2019-10-28 23:27:08 +0100 |
| commit | dfece0a108a71b493bb92f135f68c59fd1d85c06 (patch) | |
| tree | 25424a102d706f3692b942123c5c960487d07e9e | |
| parent | 97e36260709c541044f30092b420238511e13e5b (diff) | |
| download | bcm5719-llvm-dfece0a108a71b493bb92f135f68c59fd1d85c06.tar.gz bcm5719-llvm-dfece0a108a71b493bb92f135f68c59fd1d85c06.zip | |
[Builtins] Teach Clang about memccpy
Summary: Hopefully, -fno-builtin-memccpy will work now. Required for https://reviews.llvm.org/D67986.
Reviewers: aaron.ballman, rsmith
Reviewed By: aaron.ballman
Subscribers: RKSimon, kristina, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D68377
| -rw-r--r-- | clang/include/clang/Basic/Builtins.def | 1 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtin-memfns.c | 7 | ||||
| -rw-r--r-- | clang/test/CodeGen/memccpy-libcall.c | 12 |
3 files changed, 20 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/Builtins.def b/clang/include/clang/Basic/Builtins.def index 76e3b03de83..4ed00a13b00 100644 --- a/clang/include/clang/Basic/Builtins.def +++ b/clang/include/clang/Basic/Builtins.def @@ -979,6 +979,7 @@ LIBBUILTIN(longjmp, "vJi", "fr", "setjmp.h", ALL_LANGUAGES) // when these functions are used in non-GNU mode. PR16138. LIBBUILTIN(alloca, "v*z", "f", "stdlib.h", ALL_GNU_LANGUAGES) // POSIX string.h +LIBBUILTIN(memccpy, "v*v*vC*iz", "f", "string.h", ALL_GNU_LANGUAGES) LIBBUILTIN(stpcpy, "c*c*cC*", "f", "string.h", ALL_GNU_LANGUAGES) LIBBUILTIN(stpncpy, "c*c*cC*z", "f", "string.h", ALL_GNU_LANGUAGES) LIBBUILTIN(strdup, "c*cC*", "f", "string.h", ALL_GNU_LANGUAGES) diff --git a/clang/test/CodeGen/builtin-memfns.c b/clang/test/CodeGen/builtin-memfns.c index 27004426819..14ffbe90032 100644 --- a/clang/test/CodeGen/builtin-memfns.c +++ b/clang/test/CodeGen/builtin-memfns.c @@ -4,6 +4,7 @@ typedef __WCHAR_TYPE__ wchar_t; typedef __SIZE_TYPE__ size_t; void *memcpy(void *, void const *, size_t); +void *memccpy(void *, void const *, int, size_t); // CHECK: @test1 // CHECK: call void @llvm.memset.p0i8.i32 @@ -118,3 +119,9 @@ void test12() { // CHECK: call void @llvm.memcpy{{.*}}( memcpy(&dest_array, &dest_array, 2); } + +// CHECK-LABEL: @test13 +void test13(char *d, char *s, int c, size_t n) { + // CHECK: call i8* @memccpy + memccpy(d, s, c, n); +} diff --git a/clang/test/CodeGen/memccpy-libcall.c b/clang/test/CodeGen/memccpy-libcall.c new file mode 100644 index 00000000000..dd5616c249e --- /dev/null +++ b/clang/test/CodeGen/memccpy-libcall.c @@ -0,0 +1,12 @@ +// RUN: %clang_cc1 -fno-builtin-memccpy -emit-llvm < %s| FileCheck %s + +typedef __SIZE_TYPE__ size_t; + +void *memccpy(void *, void const *, int, size_t); + +void test13(char *d, char *s, int c, size_t n) { + // CHECK: call i8* @memccpy{{.*}} #2 + memccpy(d, s, c, n); +} + +// CHECK: attributes #2 = { nobuiltin } |
