xref: /llvm-project/llvm/test/Instrumentation/DataFlowSanitizer/custom_fun_varargs_attributes.ll (revision ecb85b5cd89f9797c538675ee3ab93e350c57bd5)
1; RUN: opt < %s -passes=dfsan -dfsan-abilist=%S/Inputs/abilist.txt -S | FileCheck %s
2target triple = "x86_64-unknown-linux-gnu"
3
4; Declare a custom varargs function.
5declare i16 @custom_varargs(i64, ...)
6
7; CHECK-LABEL: @call_custom_varargs.dfsan
8define void @call_custom_varargs(ptr %buf) {
9  ;; All arguments have an annotation.  Check that the transformed function
10  ;; preserves each annotation.
11
12  ; CHECK: call zeroext i16 (i64, i8, ptr, ptr, ...)
13  ; CHECK-SAME: @__dfsw_custom_varargs
14  ; CHECK-SAME: i64 signext 200
15  ; CHECK-SAME: ptr nonnull
16  ; CHECK-SAME: i64 zeroext 20
17  ; CHECK-SAME: i32 signext 1
18  %call = call zeroext i16 (i64, ...) @custom_varargs(
19    i64 signext 200,
20    ptr nonnull %buf,
21    i64 zeroext 20,
22    i32 signext 1
23  )
24  ret void
25}
26