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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-linux %s -o - | FileCheck %s
define i32 @f0(i32 %x) #0 {
; CHECK-LABEL: f0:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: .cfi_remember_state
; CHECK-NEXT: cbz w0, .LBB0_4
; CHECK-NEXT: // %bb.1: // %entry
; CHECK-NEXT: cmp w0, #2
; CHECK-NEXT: b.eq .LBB0_5
; CHECK-NEXT: // %bb.2: // %entry
; CHECK-NEXT: cmp w0, #1
; CHECK-NEXT: b.ne .LBB0_6
; CHECK-NEXT: // %bb.3: // %if.then2
; CHECK-NEXT: bl g1
; CHECK-NEXT: add w0, w0, #1
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
; CHECK-NEXT: .LBB0_4:
; CHECK-NEXT: .cfi_restore_state
; CHECK-NEXT: .cfi_remember_state
; CHECK-NEXT: mov w0, #1
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
; CHECK-NEXT: .LBB0_5: // %if.then5
; CHECK-NEXT: .cfi_restore_state
; CHECK-NEXT: .cfi_remember_state
; CHECK-NEXT: bl g0
; CHECK-NEXT: mov w8, #1
; CHECK-NEXT: sub w0, w8, w0
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
; CHECK-NEXT: .LBB0_6: // %if.end7
; CHECK-NEXT: .cfi_restore_state
; CHECK-NEXT: mov w0, wzr
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
entry:
switch i32 %x, label %if.end7 [
i32 0, label %return
i32 1, label %if.then2
i32 2, label %if.then5
]
if.then2:
%call = tail call i32 @g1(i32 1)
%add = add nsw i32 %call, 1
br label %return
if.then5:
%call6 = tail call i32 @g0(i32 2)
%sub = sub nsw i32 1, %call6
br label %return
if.end7:
br label %return
return:
%retval.0 = phi i32 [ %add, %if.then2 ], [ %sub, %if.then5 ], [ 0, %if.end7 ], [ 1, %entry ]
ret i32 %retval.0
}
declare i32 @g1(i32)
declare i32 @g0(i32)
define i32 @f1(i32 %x) #0 {
; CHECK-LABEL: f1:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: cbz w0, .LBB1_2
; CHECK-NEXT: // %bb.1: // %if.end
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: bl g0
; CHECK-NEXT: add w0, w0, #1
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: .LBB1_2: // %return
; CHECK-NEXT: ret
entry:
%cmp = icmp eq i32 %x, 0
br i1 %cmp, label %return, label %if.end
if.end:
%call = tail call i32 @g0(i32 %x)
%add = add nsw i32 %call, 1
br label %return
return:
%retval.0 = phi i32 [ %add, %if.end ], [ 0, %entry ]
ret i32 %retval.0
}
define i32 @f2(i32 %x) #0 {
; CHECK-LABEL: f2:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset w30, -16
; CHECK-NEXT: .cfi_remember_state
; CHECK-NEXT: cbz w0, .LBB2_2
; CHECK-NEXT: // %bb.1: // %if.end
; CHECK-NEXT: bl g1
; CHECK-NEXT: mov w8, #1
; CHECK-NEXT: sub w0, w8, w0
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
; CHECK-NEXT: .LBB2_2: // %if.then
; CHECK-NEXT: .cfi_restore_state
; CHECK-NEXT: bl g0
; CHECK-NEXT: add w0, w0, #1
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore w30
; CHECK-NEXT: ret
entry:
%cmp = icmp eq i32 %x, 0
br i1 %cmp, label %if.then, label %if.end
if.then:
%call = tail call i32 @g0(i32 0)
%add = add nsw i32 %call, 1
br label %return
if.end:
%call1 = tail call i32 @g1(i32 %x)
%sub = sub nsw i32 1, %call1
br label %return
return:
%retval.0 = phi i32 [ %add, %if.then ], [ %sub, %if.end ]
ret i32 %retval.0
}
attributes #0 = { uwtable }
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