diff options
Diffstat (limited to 'src/llvm_backend_general.cpp')
| -rw-r--r-- | src/llvm_backend_general.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/llvm_backend_general.cpp b/src/llvm_backend_general.cpp index e3d30ccff..5b43a11ab 100644 --- a/src/llvm_backend_general.cpp +++ b/src/llvm_backend_general.cpp @@ -852,6 +852,12 @@ bool lb_is_type_proc_recursive(Type *t) { void lb_emit_store(lbProcedure *p, lbValue ptr, lbValue value) { GB_ASSERT(value.value != nullptr); Type *a = type_deref(ptr.type); + + if (LLVMIsNull(value.value)) { + LLVMTypeRef src_t = LLVMGetElementType(LLVMTypeOf(ptr.value)); + LLVMBuildStore(p->builder, LLVMConstNull(src_t), ptr.value); + return; + } if (is_type_boolean(a)) { // NOTE(bill): There are multiple sized booleans, thus force a conversion (if necessarily) value = lb_emit_conv(p, value, a); @@ -861,6 +867,20 @@ void lb_emit_store(lbProcedure *p, lbValue ptr, lbValue value) { GB_ASSERT_MSG(are_types_identical(ca, core_type(value.type)), "%s != %s", type_to_string(a), type_to_string(value.type)); } + enum {MAX_STORE_SIZE = 64}; + + if (LLVMIsALoadInst(value.value) && lb_sizeof(LLVMTypeOf(value.value)) > MAX_STORE_SIZE) { + LLVMValueRef dst_ptr = ptr.value; + LLVMValueRef src_ptr = LLVMGetOperand(value.value, 0); + src_ptr = LLVMBuildPointerCast(p->builder, src_ptr, LLVMTypeOf(dst_ptr), ""); + + LLVMBuildMemMove(p->builder, + dst_ptr, 1, + src_ptr, 1, + LLVMConstInt(LLVMInt64TypeInContext(p->module->ctx), lb_sizeof(LLVMTypeOf(value.value)), false)); + return; + } + if (lb_is_type_proc_recursive(a)) { // NOTE(bill, 2020-11-11): Because of certain LLVM rules, a procedure value may be // stored as regular pointer with no procedure information |