xref: /llvm-project/llvm/test/Transforms/NewGVN/pr31472.ll (revision 229640343e400394b315c6798c7c19e8a9bd188c)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=newgvn -S | FileCheck %s
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-apple-macosx10.12.0"
5
6;; Ensure the invoke does not accidentally get deleted as unused, just because the value is not used.
7
8; Function Attrs: norecurse ssp uwtable
9define i32 @main() personality ptr @__gxx_personality_v0{
10; CHECK-LABEL: @main(
11; CHECK-NEXT:    [[TMP1:%.*]] = invoke i32 @foo()
12; CHECK-NEXT:            to label [[GOOD:%.*]] unwind label [[BAD:%.*]]
13; CHECK:       good:
14; CHECK-NEXT:    ret i32 5
15; CHECK:       bad:
16; CHECK-NEXT:    [[TMP2:%.*]] = landingpad { ptr, i32 }
17; CHECK-NEXT:            cleanup
18; CHECK-NEXT:    resume { ptr, i32 } [[TMP2]]
19;
20  %1 = invoke i32 @foo()
21  to label %good unwind label %bad
22
23good:
24; <label>:15:                                     ; preds = %.preheader
25  ret i32 5
26
27
28bad:
29; <label>:20:                                     ; preds = %15, %.preheader
30  %2 = landingpad { ptr, i32 }
31  cleanup
32  resume { ptr, i32 } %2
33}
34
35declare i32 @foo()
36declare i32 @__gxx_personality_v0(...)
37