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Fix code gen bug for slicing multi pointers

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gingerBill
2021-09-08 11:14:26 +01:00
parent 3e459ba16b
commit 72508dbce3
1 changed files with 4 additions and 1 deletions
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5
src/llvm_backend_expr.cpp
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@@ -2996,12 +2996,15 @@ lbAddr lb_build_addr(lbProcedure *p, Ast *expr) {
offset.value = LLVMBuildGEP(p->builder, offset.value, indices, 1, "");
lb_addr_store(p, res, offset);
} else {
low = lb_emit_conv(p, low, t_int);
high = lb_emit_conv(p, high, t_int);
lb_emit_multi_pointer_slice_bounds_check(p, se->open, low, high);
LLVMValueRef indices[1] = {low.value};
LLVMValueRef ptr = LLVMBuildGEP(p->builder, base.value, indices, 1, "");
LLVMValueRef len = LLVMBuildSub(p->builder, high.value, low.value, "");
// TODO(bill): bounds_check for negative length
LLVMValueRef gep0 = lb_emit_struct_ep(p, res.addr, 0).value;
LLVMValueRef gep1 = lb_emit_struct_ep(p, res.addr, 1).value;
LLVMBuildStore(p->builder, ptr, gep0);