| # RUN: llc %s -run-pass machine-scheduler -o - | FileCheck %s |
| |
| # CHECK-LABEL: bb.0. |
| # CHECK: t2LDRi12 |
| # CHECK-NEXT: t2LDRi12 |
| # CHECK-NEXT: t2ADDri |
| # CHECK-NEXT: t2ADDri |
| --- | |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv7em-arm-none-eabi" |
| |
| ; Function Attrs: norecurse nounwind optsize readonly |
| define dso_local i32 @test(ptr nocapture readonly %a, ptr nocapture readonly %b) local_unnamed_addr #0 { |
| entry: |
| %0 = load i32, ptr %a, align 4 |
| %add = add nsw i32 %0, 10 |
| %1 = load i32, ptr %b, align 4 |
| %add1 = add nsw i32 %1, 20 |
| %mul = mul nsw i32 %add1, %add |
| ret i32 %mul |
| } |
| |
| attributes #0 = { "target-cpu"="cortex-m4" } |
| |
| ... |
| --- |
| name: test |
| alignment: 2 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| registers: |
| - { id: 0, class: gpr, preferred-register: '' } |
| - { id: 1, class: gpr, preferred-register: '' } |
| - { id: 2, class: gprnopc, preferred-register: '' } |
| - { id: 3, class: rgpr, preferred-register: '' } |
| - { id: 4, class: gprnopc, preferred-register: '' } |
| - { id: 5, class: rgpr, preferred-register: '' } |
| - { id: 6, class: rgpr, preferred-register: '' } |
| liveins: |
| - { reg: '$r0', virtual-reg: '%0' } |
| - { reg: '$r1', virtual-reg: '%1' } |
| body: | |
| bb.0.entry: |
| liveins: $r0, $r1 |
| |
| %1:gpr = COPY $r1 |
| %0:gpr = COPY $r0 |
| %2:gprnopc = t2LDRi12 %0, 0, 14, $noreg :: (load (s32) from %ir.a) |
| %3:rgpr = nsw t2ADDri %2, 10, 14, $noreg, $noreg |
| %4:gprnopc = t2LDRi12 %1, 0, 14, $noreg :: (load (s32) from %ir.b) |
| %5:rgpr = nsw t2ADDri %4, 20, 14, $noreg, $noreg |
| %6:rgpr = nsw t2MUL %5, %3, 14, $noreg |
| $r0 = COPY %6 |
| tBX_RET 14, $noreg, implicit $r0 |
| |
| ... |