blob: 1231172a7e95147a283f0e98f300c331ab10fce6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
declare i32 @__CxxFrameHandler3(...)
declare void @throw() noreturn uwtable
declare i8* @getval()
define i8* @reload_out_of_pad(i8* %arg) #0 personality i32 (...)* @__CxxFrameHandler3 {
assertPassed:
invoke void @throw()
to label %unreachable unwind label %catch.dispatch
catch:
%cp = catchpad within %cs [i8* null, i32 0, i8* null]
catchret from %cp to label %return
; This block *must* appear after the catchret to test the bug.
; FIXME: Make this an MIR test so we can control MBB layout.
unreachable:
unreachable
catch.dispatch:
%cs = catchswitch within none [label %catch] unwind to caller
return:
ret i8* %arg
}
; CHECK-LABEL: reload_out_of_pad: # @reload_out_of_pad
; CHECK: movq %rcx, -[[arg_slot:[0-9]+]](%rbp) # 8-byte Spill
; CHECK: callq throw
; CHECK: ud2
; CHECK: movq -[[arg_slot]](%rbp), %rax # 8-byte Reload
; CHECK: retq
; CHECK: "?catch$3@?0?reload_out_of_pad@4HA":
; CHECK-NOT: Reload
; CHECK: retq
define i8* @spill_in_pad() #0 personality i32 (...)* @__CxxFrameHandler3 {
assertPassed:
invoke void @throw()
to label %unreachable unwind label %catch.dispatch
catch:
%cp = catchpad within %cs [i8* null, i32 0, i8* null]
%val = call i8* @getval() [ "funclet"(token %cp) ]
catchret from %cp to label %return
unreachable:
unreachable
catch.dispatch:
%cs = catchswitch within none [label %catch] unwind to caller
return:
ret i8* %val
}
; CHECK-LABEL: spill_in_pad: # @spill_in_pad
; CHECK: callq throw
; CHECK: ud2
; CHECK: movq -[[val_slot:[0-9]+]](%rbp), %rax # 8-byte Reload
; CHECK: retq
; CHECK: "?catch$3@?0?spill_in_pad@4HA":
; CHECK: callq getval
; CHECK: movq %rax, -[[val_slot]](%rbp) # 8-byte Spill
; CHECK: retq
attributes #0 = { uwtable }
|
