xref: /llvm-project/llvm/test/CodeGen/PowerPC/callbr-asm-outputs-indirect-isel.ll (revision 39811e2e537de415b68d1ed9edee716dbc59a4ed)
1; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2; RUN: llc %s -o - -verify-machineinstrs \
3; RUN:   -stop-after=finalize-isel -start-before=ppc-isel | FileCheck %s
4
5target datalayout = "e-m:e-i64:64-n32:64-S128-v256:256:256-v512:512:512"
6target triple = "powerpc64le-unknown-linux-gnu"
7
8define void @strncpy_from_kernel_nofault_count() {
9  ; CHECK-LABEL: name: strncpy_from_kernel_nofault_count
10  ; CHECK: bb.0.entry:
11  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.3(0x00000000)
12  ; CHECK-NEXT: {{  $}}
13  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 131082 /* regdef:GPRC */, def %1, 13 /* imm */, %bb.3
14  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gprc = COPY %1
15  ; CHECK-NEXT:   B %bb.1
16  ; CHECK-NEXT: {{  $}}
17  ; CHECK-NEXT: bb.1.asm.fallthrough:
18  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
19  ; CHECK-NEXT: {{  $}}
20  ; CHECK-NEXT:   STB [[COPY]], 0, $zero8 :: (store (s8) into `ptr null`)
21  ; CHECK-NEXT: {{  $}}
22  ; CHECK-NEXT: bb.2.Efault:
23  ; CHECK-NEXT:   BLR8 implicit $lr8, implicit $rm
24  ; CHECK-NEXT: {{  $}}
25  ; CHECK-NEXT: bb.3.Efault.split (machine-block-address-taken, inlineasm-br-indirect-target):
26  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
27  ; CHECK-NEXT: {{  $}}
28  ; CHECK-NEXT:   STB %1, 0, $zero8 :: (store (s8) into `ptr null`)
29  ; CHECK-NEXT:   B %bb.2
30entry:
31  %0 = callbr i8 asm "", "=r,!i"()
32          to label %asm.fallthrough [label %Efault.split]
33
34asm.fallthrough:
35  store i8 %0, ptr null, align 1
36  br label %Efault
37
38Efault:
39  ret void
40
41Efault.split:
42  %1 = call i8 @llvm.callbr.landingpad.i8(i8 %0)
43  store i8 %1, ptr null, align 1
44  br label %Efault
45}
46declare i8 @llvm.callbr.landingpad.i8(i8)
47