| ; 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 } |