xref: /llvm-project/llvm/test/Transforms/Reg2Mem/callbr-crash.ll (revision fdaad738753cde2bba6480c2ee5d1e9fb45064b9)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=reg2mem -S < %s | FileCheck %s
3
4define void @crash() {
5; CHECK-LABEL: @crash(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    [[A_REG2MEM:%.*]] = alloca i64, align 8
8; CHECK-NEXT:    %"reg2mem alloca point" = bitcast i32 0 to i32
9; CHECK-NEXT:    [[A:%.*]] = callbr i64 asm "", "=r,r,!i"(i64 0)
10; CHECK-NEXT:            to label [[THEN:%.*]] [label %entry.else_crit_edge]
11; CHECK:       entry.else_crit_edge:
12; CHECK-NEXT:    store i64 [[A]], ptr [[A_REG2MEM]], align 4
13; CHECK-NEXT:    br label [[ELSE:%.*]]
14; CHECK:       then:
15; CHECK-NEXT:    store i64 [[A]], ptr [[A_REG2MEM]], align 4
16; CHECK-NEXT:    [[A_RELOAD:%.*]] = load i64, ptr [[A_REG2MEM]], align 4
17; CHECK-NEXT:    [[B:%.*]] = inttoptr i64 [[A_RELOAD]] to ptr
18; CHECK-NEXT:    br label [[ELSE]]
19; CHECK:       else:
20; CHECK-NEXT:    ret void
21;
22entry:
23  %a = callbr i64 asm "", "=r,r,!i"(i64 0)
24  to label %then [label %else]
25
26then:
27  %b = inttoptr i64 %a to ptr
28  br label %else
29
30else:
31  ret void
32}
33