1; RUN: llc -mtriple=s390x-linux-gnu < %s | FileCheck %s
2
3; Test invoking of patchpoints
4;
5define i64 @patchpoint_invoke(i64 %p1, i64 %p2) personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
6entry:
7; CHECK-LABEL: patchpoint_invoke:
8; CHECK-NEXT:  [[FUNC_BEGIN:.L.*]]:
9; CHECK-NEXT: .cfi_startproc
10; CHECK:      .cfi_lsda 0, [[EXCEPTION_LABEL:.L[^ ]*]]
11; CHECK:      aghi %r15, -160
12
13; Unfortunately, hardcode the name of the label that begins the patchpoint:
14; CHECK:      .Ltmp0:
15; CHECK:      llilf   %r1, 559038736
16; CHECK-NEXT: basr    %r14, %r1
17; CHECK-NEXT: bcr     0, %r0
18; CHECK-NEXT: [[PP_END:.L.*]]:
19; CHECK:      br %r14
20  %resolveCall = inttoptr i64 559038736 to i8*
21  %result = invoke i64 (i64, i32, i8*, i32, ...) @llvm.experimental.patchpoint.i64(i64 2, i32 10, i8* %resolveCall, i32 1, i64 %p1, i64 %p2)
22            to label %success unwind label %threw
23
24success:
25  ret i64 %result
26
27threw:
28  %0 = landingpad { i8*, i32 }
29          catch i8* null
30  ret i64 0
31}
32
33; Verify that the exception table was emitted:
34; CHECK:      [[EXCEPTION_LABEL]]:
35; CHECK-NEXT: .byte 255
36; CHECK-NEXT: .byte 0
37; CHECK-NEXT: .uleb128 .Lttbase{{[0-9]+}}-[[TTBASEREF:.Lttbaseref[0-9]+]]
38; CHECK-NEXT: [[TTBASEREF]]:
39; CHECK-NEXT: .byte 1
40; CHECK-NEXT: .uleb128 .Lcst_end{{[0-9]+}}-[[CST_BEGIN:.Lcst_begin[0-9]+]]
41; CHECK-NEXT: [[CST_BEGIN]]:
42; Verify that the unwind data covers the entire patchpoint region:
43; CHECK-NEXT: .uleb128 .Ltmp0-[[FUNC_BEGIN]]
44; CHECK-NEXT: .uleb128 [[PP_END]]-.Ltmp0
45
46
47; Verify that the stackmap section got emitted:
48; CHECK-LABEL: __LLVM_StackMaps:
49; Header
50; CHECK-NEXT:   .byte 3
51; CHECK-NEXT:   .byte 0
52; CHECK-NEXT:   .short 0
53; Num Functions
54; CHECK-NEXT:   .long 1
55; Num LargeConstants
56; CHECK-NEXT:   .long 0
57; Num Callsites
58; CHECK-NEXT:   .long 1
59; CHECK-NEXT:   .quad patchpoint_invoke
60
61
62declare void @llvm.experimental.stackmap(i64, i32, ...)
63declare void @llvm.experimental.patchpoint.void(i64, i32, i8*, i32, ...)
64declare i64 @llvm.experimental.patchpoint.i64(i64, i32, i8*, i32, ...)
65declare i32 @__gxx_personality_v0(...)
66