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| author | Guanzhong Chen <gzchen@google.com> | 2019-07-18 17:53:22 +0000 |
|---|---|---|
| committer | Guanzhong Chen <gzchen@google.com> | 2019-07-18 17:53:22 +0000 |
| commit | 801fa8e6b9eb2398a051752bb0e9d81279360d14 (patch) | |
| tree | 85dbbbc175c054a527d970f9ea819f05abd0880c /clang | |
| parent | 05be1da24cd947187a8b750e9eca45e80d2e7414 (diff) | |
| download | bcm5719-llvm-801fa8e6b9eb2398a051752bb0e9d81279360d14.tar.gz bcm5719-llvm-801fa8e6b9eb2398a051752bb0e9d81279360d14.zip | |
[WebAssembly] Implement __builtin_wasm_tls_base intrinsic
Summary:
Add `__builtin_wasm_tls_base` so that LeakSanitizer can find the thread-local
block and scan through it for memory leaks.
Reviewers: tlively, aheejin, sbc100
Subscribers: dschuff, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D64900
llvm-svn: 366475
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsWebAssembly.def | 1 | ||||
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 4 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtins-wasm.c | 5 |
3 files changed, 10 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/BuiltinsWebAssembly.def b/clang/include/clang/Basic/BuiltinsWebAssembly.def index 63177f016ac..68cecdf6309 100644 --- a/clang/include/clang/Basic/BuiltinsWebAssembly.def +++ b/clang/include/clang/Basic/BuiltinsWebAssembly.def @@ -31,6 +31,7 @@ TARGET_BUILTIN(__builtin_wasm_data_drop, "vIUi", "", "bulk-memory") // Thread-local storage TARGET_BUILTIN(__builtin_wasm_tls_size, "z", "nc", "bulk-memory") +TARGET_BUILTIN(__builtin_wasm_tls_base, "v*", "n", "bulk-memory") // Floating point min/max BUILTIN(__builtin_wasm_min_f32, "fff", "nc") diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index a300bab49f9..8c7411fc305 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -13924,6 +13924,10 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID, Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_size, ResultType); return Builder.CreateCall(Callee); } + case WebAssembly::BI__builtin_wasm_tls_base: { + Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_tls_base); + return Builder.CreateCall(Callee); + } case WebAssembly::BI__builtin_wasm_throw: { Value *Tag = EmitScalarExpr(E->getArg(0)); Value *Obj = EmitScalarExpr(E->getArg(1)); diff --git a/clang/test/CodeGen/builtins-wasm.c b/clang/test/CodeGen/builtins-wasm.c index 8a17fb39641..8f8e7a9e4d0 100644 --- a/clang/test/CodeGen/builtins-wasm.c +++ b/clang/test/CodeGen/builtins-wasm.c @@ -44,6 +44,11 @@ __SIZE_TYPE__ tls_size() { // WEBASSEMBLY64: call i64 @llvm.wasm.tls.size.i64() } +void *tls_base() { + return __builtin_wasm_tls_base(); + // WEBASSEMBLY: call i8* @llvm.wasm.tls.base() +} + void throw(void *obj) { return __builtin_wasm_throw(0, obj); // WEBASSEMBLY32: call void @llvm.wasm.throw(i32 0, i8* %{{.*}}) |
