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Support using variables in debug information

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gingerBill
2021-03-24 10:57:00 +00:00
parent fc1a352285
commit 295c1550a8
1 changed files with 10 additions and 1 deletions
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src/llvm_backend.cpp
+10 -1
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@@ -2840,6 +2840,12 @@ void lb_add_debug_local_variable(lbProcedure *p, LLVMValueRef ptr, Type *type, T
return; return;
} }
if (lb_get_llvm_metadata(m, ptr) != nullptr) {
// Already been set
return;
}
AstFile *file = p->body->file; AstFile *file = p->body->file;
LLVMMetadataRef llvm_scope = lb_get_current_debug_scope(p); LLVMMetadataRef llvm_scope = lb_get_current_debug_scope(p);
@@ -2872,6 +2878,7 @@ void lb_add_debug_local_variable(lbProcedure *p, LLVMValueRef ptr, Type *type, T
LLVMValueRef instr = ptr; LLVMValueRef instr = ptr;
LLVMMetadataRef llvm_debug_loc = lb_debug_location_from_token_pos(p, token.pos); LLVMMetadataRef llvm_debug_loc = lb_debug_location_from_token_pos(p, token.pos);
LLVMMetadataRef llvm_expr = LLVMDIBuilderCreateExpression(m->debug_builder, nullptr, 0); LLVMMetadataRef llvm_expr = LLVMDIBuilderCreateExpression(m->debug_builder, nullptr, 0);
lb_set_llvm_metadata(m, ptr, llvm_expr);
LLVMDIBuilderInsertDeclareBefore(m->debug_builder, storage, var_info, llvm_expr, llvm_debug_loc, instr); LLVMDIBuilderInsertDeclareBefore(m->debug_builder, storage, var_info, llvm_expr, llvm_debug_loc, instr);
} }
@@ -10631,7 +10638,9 @@ lbValue lb_get_using_variable(lbProcedure *p, Entity *e) {
} }
GB_ASSERT(v.value != nullptr); GB_ASSERT(v.value != nullptr);
GB_ASSERT(parent->type == type_deref(v.type)); GB_ASSERT(parent->type == type_deref(v.type));
return lb_emit_deep_field_gep(p, v, sel); lbValue ptr = lb_emit_deep_field_gep(p, v, sel);
lb_add_debug_local_variable(p, ptr.value, e->type, e->token);
return ptr;
} }