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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
  
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      ; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -filetype=obj -o - \
; RUN:  | llvm-objdump --triple=aarch64-unknown-linux-gnu -d - \
; RUN:  | FileCheck %s
%struct.c = type { i1 (...)* }
@l = common hidden local_unnamed_addr global i32 0, align 4
; CHECK-LABEL: <test1>:
; CHECK-LABEL: <$d.1>:
; CHECK-LABEL: <$x.2>:
; CHECK-NEXT:    b 0x2c <$x.4>
; CHECK-LABEL: <$x.4>:
; CHECK-NEXT:    mov w0, wzr
; CHECK-NEXT:    ldr x30, [sp], #16
; CHECK-NEXT:    ret
define hidden i32 @test1() {
  %1 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)()
  %2 = icmp eq i32 %1, 0
  br i1 %2, label %3, label %5
3:                                                ; preds = %0
  callbr void asm sideeffect "1: nop\0A\09.quad a\0A\09b ${1:l}\0A\09.quad ${0:c}", "i,X"(i32* null, i8* blockaddress(@test1, %7))
          to label %4 [label %7]
4:                                                ; preds = %3
  br label %7
5:                                                ; preds = %0
  %6 = tail call i32 bitcast (i32 (...)* @i to i32 ()*)()
  br label %7
7:                                                ; preds = %3, %4, %5
  %8 = phi i32 [ %6, %5 ], [ 0, %4 ], [ 0, %3 ]
  ret i32 %8
}
declare dso_local i32 @g(...) local_unnamed_addr
declare dso_local i32 @i(...) local_unnamed_addr
; CHECK-LABEL: <test2>:
; CHECK:         bl {{.*}} <test2+0x18>
; CHECK-LABEL: <$d.5>:
; CHECK-LABEL: <$x.6>:
; CHECK-NEXT:    b {{.*}} <test2+0x18>
define hidden i32 @test2() local_unnamed_addr {
  %1 = load i32, i32* @l, align 4
  %2 = icmp eq i32 %1, 0
  br i1 %2, label %10, label %3
3:                                                ; preds = %0
  %4 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)()
  %5 = icmp eq i32 %4, 0
  br i1 %5, label %6, label %7
6:                                                ; preds = %3
  callbr void asm sideeffect "1: nop\0A\09.quad b\0A\09b ${1:l}\0A\09.quad ${0:c}", "i,X"(i32* null, i8* blockaddress(@test2, %7))
          to label %10 [label %7]
7:                                                ; preds = %3
  %8 = tail call i32 bitcast (i32 (...)* @i to i32 ()*)()
  br label %10
9:                                                ; preds = %6
  br label %10
10:                                               ; preds = %7, %0, %6, %9
  ret i32 undef
}
; CHECK-LABEL: <test3>:
; CHECK-LABEL: <$d.9>:
; CHECK-LABEL: <$x.10>:
; CHECK-NEXT:    b {{.*}} <test3+0x18>
; CHECK-LABEL: <$x.12>:
; CHECK-NEXT:    mov w0, wzr
; CHECK-NEXT:    ldr x30, [sp], #16
; CHECK-NEXT:    ret
define internal i1 @test3() {
  %1 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)()
  %2 = icmp eq i32 %1, 0
  br i1 %2, label %3, label %5
3:                                                ; preds = %0
  callbr void asm sideeffect "1: nop\0A\09.quad c\0A\09b ${1:l}\0A\09.quad ${0:c}", "i,X"(i32* null, i8* blockaddress(@test3, %8))
          to label %4 [label %8]
4:                                                ; preds = %3
  br label %8
5:                                                ; preds = %0
  %6 = tail call i32 bitcast (i32 (...)* @i to i32 ()*)()
  %7 = icmp ne i32 %6, 0
  br label %8
8:                                                ; preds = %3, %4, %5
  %9 = phi i1 [ %7, %5 ], [ false, %4 ], [ false, %3 ]
  ret i1 %9
}
 
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