| ; RUN: llc -mtriple=arm-eabi -mcpu=cortex-r52 -debug-only=machine-scheduler %s -o - 2>&1 | FileCheck %s --check-prefix=CHECK-R52 |
| ; REQUIRES: asserts |
| |
| ; source_filename = "sched-2.c" |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| |
| define dso_local i32 @f(i32 %a, i32 %b, i32 %c, i32 %d) local_unnamed_addr { |
| entry: |
| %add = add nsw i32 %b, %a |
| %add1 = add nsw i32 %d, %c |
| %div = sdiv i32 %add, %add1 |
| ret i32 %div |
| } |
| |
| ; Cortex-R52 model describes it as dual-issue with two integer ALUs |
| ; It should be able to issue the two additions in the same cycle. |
| ; CHECK-R52: MI Scheduling |
| ; CHECK-R52: Cycle: 14 |
| ; CHECK-R52: Scheduling SU(5) %5:gpr = nsw ADDrr %3:gpr, %2:gpr, 14, $noreg, $noreg |
| ; CHECK-R52: Scheduling SU(4) %4:gpr = nsw ADDrr %1:gpr, %0:gpr, 14, $noreg, $noreg |
| ; CHECK-R52: Cycle: 15 |