indirect_call_profile_funclet.ll
2.27 KB
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
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
; RUN: opt < %s -pgo-instr-gen -instrprof -S | FileCheck %s --check-prefix=LOWER
; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
; RUN: opt < %s -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefix=LOWER
; This test is to verify that PGO runtime library calls get created with the
; appropriate operand bundle funclet information when an indirect call
; was marked with as belonging to a particular funclet.
; Test case based on this source:
; extern void may_throw(int);
;
; class base {
; public:
; base() : x(0) {};
; int get_x() const { return x; }
; virtual void update() { x++; }
; int x;
; };
;
; class derived : public base {
; public:
; derived() {}
; virtual void update() { x--; }
; };
;
; void run(base* b, int count) {
; try {
; may_throw(count);
; }
; catch (...) {
; // Virtual function call in exception handler for value profiling.
; b->update();
; }
; }
%class.base = type { i32 (...)**, i32 }
define dso_local void @"?run@@YAXPEAVbase@@H@Z"(%class.base* %b, i32 %count) personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
entry:
invoke void @"?may_throw@@YAXH@Z"(i32 %count)
to label %try.cont unwind label %catch.dispatch
catch.dispatch: ; preds = %entry
%tmp = catchswitch within none [label %catch] unwind to caller
catch: ; preds = %catch.dispatch
%tmp1 = catchpad within %tmp [i8* null, i32 64, i8* null]
%tmp2 = bitcast %class.base* %b to void (%class.base*)***
%vtable = load void (%class.base*)**, void (%class.base*)*** %tmp2, align 8
%tmp3 = load void (%class.base*)*, void (%class.base*)** %vtable, align 8
call void %tmp3(%class.base* %b) [ "funclet"(token %tmp1) ]
catchret from %tmp1 to label %try.cont
try.cont: ; preds = %catch, %entry
ret void
}
; GEN: catch:
; GEN: call void @llvm.instrprof.value.profile(
; GEN-SAME: [ "funclet"(token %tmp1) ]
; LOWER: catch:
; LOWER: call void @__llvm_profile_instrument_target(
; LOWER-SAME: [ "funclet"(token %tmp1) ]
declare dso_local void @"?may_throw@@YAXH@Z"(i32)
declare dso_local i32 @__CxxFrameHandler3(...)