xref: /llvm-project/llvm/test/Instrumentation/DataFlowSanitizer/shadow-args-zext.ll (revision ecb85b5cd89f9797c538675ee3ab93e350c57bd5) 
1; RUN: opt -mtriple=x86_64-unknown-linux-gnu < %s -passes=dfsan -S --dfsan-abilist=%S/Inputs/shadow-args-abilist.txt | FileCheck %s
2
3; REQUIRES: x86-registered-target
4
5; Test that the custom abi marks shadow parameters as zero extended.
6
7define i32 @m() {
8  ; CHECK-LABEL: @m.dfsan
9  ; CHECK: %{{.*}} = call zeroext i16 @__dfsw_dfsan_get_label(i64 signext 56, i8 zeroext 0, ptr %{{.*}})
10
11entry:
12  %call = call zeroext i16 @dfsan_get_label(i64 signext 56)
13  %conv = zext i16 %call to i32
14  ret i32 %conv
15}
16
17define i32 @k() {
18  ; CHECK-LABEL: @k.dfsan
19  ; CHECK: %{{.*}} = call zeroext i16 @__dfsw_k2(i64 signext 56, i64 signext 67, i8 zeroext {{.*}}, i8 zeroext {{.*}}, ptr %{{.*}})
20
21entry:
22  %call = call zeroext i16 @k2(i64 signext 56, i64 signext 67)
23  %conv = zext i16 %call to i32
24  ret i32 %conv
25}
26
27define i32 @k3() {
28  ; CHECK-LABEL: @k3.dfsan
29  ; CHECK: %{{.*}} = call zeroext i16 @__dfsw_k4(i64 signext 56, i64 signext 67, i64 signext 78, i64 signext 89, i8 zeroext {{.*}}, i8 zeroext {{.*}}, i8 zeroext {{.*}}, i8 zeroext {{.*}}, ptr %{{.*}})
30
31entry:
32  %call = call zeroext i16 @k4(i64 signext 56, i64 signext 67, i64 signext 78, i64 signext 89)
33  %conv = zext i16 %call to i32
34  ret i32 %conv
35}
36
37declare zeroext i16 @dfsan_get_label(i64 signext)
38; CHECK-LABEL: @"dfsw$dfsan_get_label"
39; CHECK: %{{.*}} = call i16 @__dfsw_dfsan_get_label(i64 %0, i8 zeroext %1, ptr %{{.*}})
40
41declare zeroext i16 @k2(i64 signext, i64 signext)
42; CHECK-LABEL: @"dfsw$k2"
43; CHECK: %{{.*}} = call i16 @__dfsw_k2(i64 %{{.*}}, i64 %{{.*}}, i8 zeroext %{{.*}}, i8 zeroext %{{.*}}, ptr %{{.*}})
44
45declare zeroext i16 @k4(i64 signext, i64 signext, i64 signext, i64 signext)
46; CHECK-LABEL: @"dfsw$k4"
47; CHECK: %{{.*}} = call i16 @__dfsw_k4(i64 %{{.*}}, i64 %{{.*}}, i64  %{{.*}}, i64 %{{.*}}, i8 zeroext %{{.*}}, i8 zeroext %{{.*}}, i8 zeroext %{{.*}}, i8 zeroext %{{.*}}, ptr %{{.*}})
48
49
50; CHECK: declare zeroext i16 @__dfsw_dfsan_get_label(i64 signext, i8, ptr)
51; CHECK: declare zeroext i16 @__dfsw_k2(i64 signext, i64 signext, i8, i8, ptr)
52; CHECK: declare zeroext i16 @__dfsw_k4(i64 signext, i64 signext, i64 signext, i64 signext, i8, i8, i8, i8, ptr)
53