1; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2; RUN: llc -mtriple=x86_64-linux -stop-after=early-tailduplication < %s | FileCheck %s
3
4; Ensure that we don't duplicate a block with an "INLINEASM_BR" instruction
5; during code gen.
6declare dso_local void @foo()
7
8define i8* @test1(i8** %arg1, i8* %arg2) {
9  ; CHECK-LABEL: name: test1
10  ; CHECK: bb.0.bb:
11  ; CHECK:   successors: %bb.1(0x50000000), %bb.2(0x30000000)
12  ; CHECK:   liveins: $rdi, $rsi
13  ; CHECK:   [[COPY:%[0-9]+]]:gr64 = COPY $rsi
14  ; CHECK:   [[COPY1:%[0-9]+]]:gr64 = COPY $rdi
15  ; CHECK:   [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm [[COPY1]], 1, $noreg, 0, $noreg :: (load (s64) from %ir.arg1)
16  ; CHECK:   [[SUB64rr:%[0-9]+]]:gr64 = SUB64rr [[MOV64rm]], [[COPY]], implicit-def $eflags
17  ; CHECK:   JCC_1 %bb.2, 4, implicit $eflags
18  ; CHECK:   JMP_1 %bb.1
19  ; CHECK: bb.1.bb100:
20  ; CHECK:   successors: %bb.3(0x80000000)
21  ; CHECK:   MOV64mi32 [[COPY1]], 1, $noreg, 0, $noreg, 0 :: (store (s64) into %ir.arg1)
22  ; CHECK:   JMP_1 %bb.3
23  ; CHECK: bb.2.bb106:
24  ; CHECK:   successors: %bb.3(0x80000000)
25  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
26  ; CHECK:   CALL64pcrel32 @foo, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp
27  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
28  ; CHECK: bb.3.bb110:
29  ; CHECK:   successors: %bb.5(0x80000000), %bb.4(0x00000000)
30  ; CHECK:   [[PHI:%[0-9]+]]:gr64 = PHI [[COPY]], %bb.2, [[MOV64rm]], %bb.1
31  ; CHECK:   INLINEASM_BR &"#$0 $1 $2", 9 /* sideeffect mayload attdialect */, 13 /* imm */, 42, 13 /* imm */, 0, 13 /* imm */, blockaddress(@test1, %ir-block.bb17.i.i.i), 12 /* clobber */, implicit-def early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def early-clobber $eflags
32  ; CHECK:   JMP_1 %bb.5
33  ; CHECK: bb.4.bb17.i.i.i (address-taken):
34  ; CHECK:   successors: %bb.5(0x80000000)
35  ; CHECK: bb.5.kmem_cache_has_cpu_partial.exit:
36  ; CHECK:   $rax = COPY [[PHI]]
37  ; CHECK:   RET 0, $rax
38bb:
39  %i28.i = load i8*, i8** %arg1, align 8
40  %if = icmp ne i8* %i28.i, %arg2
41  br i1 %if, label %bb100, label %bb106
42
43bb100:                                            ; preds = %bb
44  store i8* null, i8** %arg1, align 8
45  br label %bb110
46
47bb106:                                            ; preds = %bb
48  call void @foo()
49  br label %bb110
50
51bb110:                                            ; preds = %bb106, %bb100
52  %i10.1 = phi i8* [ %arg2, %bb106 ], [ %i28.i, %bb100 ]
53  callbr void asm sideeffect "#$0 $1 $2", "i,i,X,~{dirflag},~{fpsr},~{flags}"(i32 42, i1 false, i8* blockaddress(@test1, %bb17.i.i.i))
54          to label %kmem_cache_has_cpu_partial.exit [label %bb17.i.i.i]
55
56bb17.i.i.i:                                       ; preds = %bb110
57  br label %kmem_cache_has_cpu_partial.exit
58
59kmem_cache_has_cpu_partial.exit:                  ; preds = %bb110
60  ret i8* %i10.1
61}
62