| # RUN: llc -mtriple=arm-eabi -run-pass=arm-cp-islands %s -o - | FileCheck %s |
| --- | |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv8.2a-arm-none-eabi" |
| |
| define hidden i32 @main() { |
| entry: |
| %P5 = alloca half, align 2 |
| store half 0xH3FE0, half* %P5, align 2 |
| %0 = load half, half* %P5, align 2 |
| call void @z_bar(half %0) |
| ret i32 0 |
| } |
| |
| declare dso_local void @z_bar(half) |
| |
| ... |
| --- |
| name: main |
| alignment: 2 |
| tracksRegLiveness: true |
| frameInfo: |
| stackSize: 16 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| localFrameSize: 2 |
| stack: |
| - { id: 0, name: P5, offset: -10, size: 2, alignment: 2, local-offset: -2 } |
| - { id: 1, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr', |
| callee-saved-restored: false } |
| - { id: 2, type: spill-slot, offset: -8, size: 4, alignment: 4, callee-saved-register: '$r7' } |
| constants: |
| - id: 0 |
| value: half 0xH3FE0 |
| alignment: 2 |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $r7, $lr |
| |
| frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp |
| frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| frame-setup CFI_INSTRUCTION offset $r7, -8 |
| $sp = frame-setup tSUBspi $sp, 2, 14 /* CC::al */, $noreg |
| frame-setup CFI_INSTRUCTION def_cfa_offset 16 |
| renamable $s0 = VLDRH %const.0, 0, 14, $noreg :: (load (s16) from constant-pool) |
| VSTRH killed renamable $s0, $sp, 3, 14, $noreg :: (store (s16) into %ir.P5) |
| renamable $r0 = t2LDRHi12 $sp, 6, 14 /* CC::al */, $noreg :: (dereferenceable load (s16) from %ir.P5) |
| tBL 14 /* CC::al */, $noreg, @z_bar, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp |
| renamable $r0, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg |
| $sp = frame-destroy tADDspi $sp, 2, 14 /* CC::al */, $noreg |
| frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc, implicit killed $r0 |
| |
| ; CHECK: name: main |
| ; CHECK-NEXT: alignment: 4 |
| ... |