1; RUN: opt < %s -sroa -S | FileCheck %s
2
3target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
4target triple = "wasm32-unknown-unknown"
5
6%struct.foo = type { i32 }
7declare i32 @__gxx_wasm_personality_v0(...)
8declare void @foo()
9
10; Tests if the SROA pass correctly bails out on rewriting PHIs in a catchswitch
11; BB.
12; CHECK-LABEL: @test_phi_catchswitch
13define void @test_phi_catchswitch() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
14entry:
15  ; CHECK: alloca
16  %tmp = alloca %struct.foo, align 4
17  %tmp2 = getelementptr inbounds %struct.foo, %struct.foo* %tmp, i32 0, i32 0
18  invoke void @foo()
19          to label %bb3 unwind label %bb10
20
21bb3:                                              ; preds = %entry
22  invoke void @foo()
23          to label %bb9 unwind label %catch.dispatch
24
25catch.dispatch:                                   ; preds = %bb3
26  ; While rewriting the alloca in the entry BB, the SROA pass tries to insert a
27  ; non-PHI instruction in this BB by calling getFirstInsertionPt(), which is
28  ; not possible in a catchswitch BB. This test checks if we correctly bail out
29  ; on these cases.
30  %tmp5 = phi i32* [ %tmp2, %bb3 ]
31  %tmp6 = catchswitch within none [label %catch.start] unwind label %bb10
32
33catch.start:                                      ; preds = %catch.dispatch
34  %tmp8 = catchpad within %tmp6 [i8* null]
35  unreachable
36
37bb9:                                              ; preds = %bb3
38  unreachable
39
40bb10:                                             ; preds = %catch.dispatch, %entry
41  %tmp11 = phi i32* [ %tmp2, %entry ], [ %tmp5, %catch.dispatch ]
42  %tmp12 = cleanuppad within none []
43  store i32 0, i32* %tmp11, align 4
44  unreachable
45}
46