| # RUN: llc -run-pass arm-prera-ldst-opt %s -o - | FileCheck %s |
| --- | |
| target triple = "thumbv7---eabi" |
| |
| define void @ldrd_strd_aa(ptr noalias nocapture %x, ptr noalias nocapture readonly %y) { |
| entry: |
| %0 = load i32, ptr %y, align 4 |
| store i32 %0, ptr %x, align 4 |
| %arrayidx2 = getelementptr inbounds i32, ptr %y, i32 1 |
| %1 = load i32, ptr %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds i32, ptr %x, i32 1 |
| store i32 %1, ptr %arrayidx3, align 4 |
| ret void |
| } |
| ... |
| --- |
| name: ldrd_strd_aa |
| alignment: 2 |
| tracksRegLiveness: true |
| 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 : gpr = t2LDRi12 %1, 0, 14, $noreg :: (load (s32) from %ir.y) |
| t2STRi12 killed %2, %0, 0, 14, $noreg :: (store (s32) into %ir.x) |
| %3 : gpr = t2LDRi12 %1, 4, 14, $noreg :: (load (s32) from %ir.arrayidx2) |
| t2STRi12 killed %3, %0, 4, 14, $noreg :: (store (s32) into %ir.arrayidx3) |
| ; CHECK: t2LDRDi8 |
| ; CHECK-NEXT: t2STRDi8 |
| tBX_RET 14, $noreg |
| |
| ... |
| |