| # RUN: llc -mtriple=aarch64 -run-pass=prologepilog %s -o - | FileCheck %s |
| # RUN: llc -mtriple=aarch64 -passes='prolog-epilog' %s -o - | FileCheck %s |
| --- | |
| define i32 @_Z4funcv() { |
| entry: |
| %array = alloca [1073741824 x i32], align 4 |
| %arrayidx = getelementptr inbounds [1073741824 x i32], ptr %array, i64 0, i64 20 |
| store i32 7, ptr %arrayidx, align 4 |
| call void @_Z5func2v() |
| %arrayidx1 = getelementptr inbounds [1073741824 x i32], ptr %array, i64 0, i64 20 |
| %0 = load i32, ptr %arrayidx1, align 4 |
| ret i32 %0 |
| } |
| |
| declare void @_Z5func2v() |
| ... |
| --- |
| name: _Z4funcv |
| alignment: 4 |
| legalized: true |
| regBankSelected: true |
| selected: true |
| tracksRegLiveness: true |
| noPhis: true |
| isSSA: false |
| noVRegs: true |
| hasFakeUses: false |
| frameInfo: |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, name: array, size: 4294967296, alignment: 4, local-offset: -4294967296 } |
| machineFunctionInfo: {} |
| body: | |
| bb.1.entry: |
| renamable $w8 = MOVi32imm 7 |
| STRWui killed renamable $w8, %stack.0.array, 20 :: (store (s32) into %ir.arrayidx) |
| ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp |
| BL @_Z5func2v, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp |
| ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp |
| renamable $w0 = LDRWui %stack.0.array, 20 :: (dereferenceable load (s32) from %ir.arrayidx1) |
| ; CHECK: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 |
| RET_ReallyLR implicit killed $w0 |
| |
| ... |
