xref: /llvm-project/llvm/test/Transforms/HotColdSplit/unwind.ll (revision 4d211ac84212cbf1ea8b98584df585df781c6557)
1; RUN: opt -passes=hotcoldsplit -hotcoldsplit-threshold=0 -S < %s | FileCheck %s
2
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-apple-macosx10.14.0"
5
6; Do not split out `resume` instructions.
7
8; CHECK-LABEL: define {{.*}}@foo.cold.1(
9; CHECK: call {{.*}}@sink(
10; CHECK-NOT: resume i32 undef
11
12; CHECK-NOT: noreturn
13
14define i32 @foo() personality i8 0 {
15entry:
16  invoke void @llvm.donothing() to label %normal unwind label %exception
17
18exception:
19  %cleanup = landingpad i32 cleanup
20  br i1 undef, label %normal, label %continue_exception
21
22continue_exception:
23  call void @sideeffect(i32 0)
24  call void @sink()
25  br label %resume-eh
26
27resume-eh:
28  resume i32 undef
29
30normal:
31  br i1 undef, label %continue_exception, label %exit
32
33exit:
34  call void @sideeffect(i32 2)
35  ret i32 0
36}
37
38declare void @sideeffect(i32)
39
40declare void @sink() cold
41
42declare void @llvm.donothing() nounwind readnone
43