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| author | Andrew Kelley <superjoe30@gmail.com> | 2018-04-18 12:16:42 -0400 |
|---|---|---|
| committer | Andrew Kelley <superjoe30@gmail.com> | 2018-04-18 12:16:42 -0400 |
| commit | f1f998e07124f141312289ff82e0ad8d99af1cf7 (patch) | |
| tree | 3c01eb14a0bd8e4cdd83f376097264f45efae2ff /src/zig_llvm.cpp | |
| parent | 96ebd8b23b39e2d4019a8019a6774d7c3d20149d (diff) | |
| download | zig-f1f998e07124f141312289ff82e0ad8d99af1cf7.tar.gz zig-f1f998e07124f141312289ff82e0ad8d99af1cf7.zip | |
improve cmpxchg
* remove @cmpxchg, add @cmpxchgWeak and @cmpxchgStrong
- See explanations in the langref.
* add operand type as first parameter
* return type is ?T where T is the operand type
closes #461
Diffstat (limited to 'src/zig_llvm.cpp')
| -rw-r--r-- | src/zig_llvm.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/zig_llvm.cpp b/src/zig_llvm.cpp index a56378ab3e..5905fa8167 100644 --- a/src/zig_llvm.cpp +++ b/src/zig_llvm.cpp @@ -765,10 +765,12 @@ static AtomicOrdering mapFromLLVMOrdering(LLVMAtomicOrdering Ordering) { LLVMValueRef ZigLLVMBuildCmpXchg(LLVMBuilderRef builder, LLVMValueRef ptr, LLVMValueRef cmp, LLVMValueRef new_val, LLVMAtomicOrdering success_ordering, - LLVMAtomicOrdering failure_ordering) + LLVMAtomicOrdering failure_ordering, bool is_weak) { - return wrap(unwrap(builder)->CreateAtomicCmpXchg(unwrap(ptr), unwrap(cmp), unwrap(new_val), - mapFromLLVMOrdering(success_ordering), mapFromLLVMOrdering(failure_ordering))); + AtomicCmpXchgInst *inst = unwrap(builder)->CreateAtomicCmpXchg(unwrap(ptr), unwrap(cmp), + unwrap(new_val), mapFromLLVMOrdering(success_ordering), mapFromLLVMOrdering(failure_ordering)); + inst->setWeak(is_weak); + return wrap(inst); } LLVMValueRef ZigLLVMBuildNSWShl(LLVMBuilderRef builder, LLVMValueRef LHS, LLVMValueRef RHS, |