# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main-none-eabi -mattr=+mve %s -run-pass=arm-mve-vpt-opts --verify-machineinstrs -o - | FileCheck %s
--- |
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv8.1m.main-none-eabi"
define i32 @test(i64* nocapture %x, i32 %n, i64 %a, i32 %m) {
entry:
%cmp.not = icmp eq i32 %n, 0
%0 = call { i32, i1 } @llvm.test.start.loop.iterations.i32(i32 %n)
%1 = extractvalue { i32, i1 } %0, 1
%2 = extractvalue { i32, i1 } %0, 0
br i1 %1, label %if.then, label %if.end
if.then: ; preds = %entry
%conv = sext i32 %m to i64
%div = sdiv i64 %a, %conv
%scevgep = getelementptr i64, i64* %x, i32 %m
br label %do.body
do.body: ; preds = %do.body, %if.then
%lsr.iv = phi i64* [ %scevgep1, %do.body ], [ %scevgep, %if.then ]
%3 = phi i32 [ %2, %if.then ], [ %4, %do.body ]
store i64 %div, i64* %lsr.iv, align 8
%scevgep1 = getelementptr i64, i64* %lsr.iv, i32 1
%4 = call i32 @llvm.loop.decrement.reg.i32(i32 %3, i32 1)
%5 = icmp ne i32 %4, 0
br i1 %5, label %do.body, label %if.end
if.end: ; preds = %do.body, %entry
ret i32 undef
}
declare { i32, i1 } @llvm.test.start.loop.iterations.i32(i32)
declare i32 @llvm.loop.decrement.reg.i32(i32, i32)
...
---
name: test
alignment: 4
tracksRegLiveness: true
registers:
- { id: 0, class: gpr, preferred-register: '' }
- { id: 1, class: gpr, preferred-register: '' }
- { id: 2, class: gpr, preferred-register: '' }
- { id: 3, class: gpr, preferred-register: '' }
- { id: 4, class: gprnopc, preferred-register: '' }
- { id: 5, class: gprlr, preferred-register: '' }
- { id: 6, class: gpr, preferred-register: '' }
- { id: 7, class: gpr, preferred-register: '' }
- { id: 8, class: gprnopc, preferred-register: '' }
- { id: 9, class: rgpr, preferred-register: '' }
- { id: 10, class: gpr, preferred-register: '' }
- { id: 11, class: gpr, preferred-register: '' }
- { id: 12, class: gpr, preferred-register: '' }
- { id: 13, class: gpr, preferred-register: '' }
- { id: 14, class: rgpr, preferred-register: '' }
- { id: 15, class: gprlr, preferred-register: '' }
- { id: 16, class: rgpr, preferred-register: '' }
- { id: 17, class: gpr, preferred-register: '' }
- { id: 18, class: gpr, preferred-register: '' }
- { id: 19, class: gprnopc, preferred-register: '' }
- { id: 20, class: rgpr, preferred-register: '' }
- { id: 21, class: gprlr, preferred-register: '' }
- { id: 22, class: gprlr, preferred-register: '' }
- { id: 23, class: gpr, preferred-register: '' }
liveins:
- { reg: '$r0', virtual-reg: '%8' }
- { reg: '$r1', virtual-reg: '%9' }
- { reg: '$r2', virtual-reg: '%10' }
- { reg: '$r3', virtual-reg: '%11' }
fixedStack:
- { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body: |
; CHECK-LABEL: name: test
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x40000000), %bb.3(0x40000000)
; CHECK: liveins: $r0, $r1, $r2, $r3
; CHECK: [[COPY:%[0-9]+]]:gpr = COPY $r3
; CHECK: [[COPY1:%[0-9]+]]:gpr = COPY $r2
; CHECK: [[COPY2:%[0-9]+]]:rgpr = COPY $r1
; CHECK: [[COPY3:%[0-9]+]]:gprnopc = COPY $r0
; CHECK: t2CMPri [[COPY2]], 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2Bcc %bb.3, 0 /* CC::eq */, $cpsr
; CHECK: t2B %bb.1, 14 /* CC::al */, $noreg
; CHECK: bb.1.if.then:
; CHECK: successors: %bb.2(0x80000000)
; CHECK: [[COPY4:%[0-9]+]]:gpr = COPY [[COPY]]
; CHECK: [[COPY5:%[0-9]+]]:gpr = COPY [[COPY1]]
; CHECK: [[t2LDRi12_:%[0-9]+]]:rgpr = t2LDRi12 %fixed-stack.0, 0, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
; CHECK: [[t2ASRri:%[0-9]+]]:rgpr = t2ASRri [[t2LDRi12_]], 31, 14 /* CC::al */, $noreg, $noreg
; CHECK: ADJCALLSTACKDOWN 0, 0, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp
; CHECK: $r0 = COPY [[COPY5]]
; CHECK: $r1 = COPY [[COPY4]]
; CHECK: $r2 = COPY [[t2LDRi12_]]
; CHECK: $r3 = COPY [[t2ASRri]]
; CHECK: tBL 14 /* CC::al */, $noreg, &__aeabi_ldivmod, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit $r2, implicit $r3, implicit-def $sp, implicit-def $r0, implicit-def $r1
; CHECK: ADJCALLSTACKUP 0, 0, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp
; CHECK: [[COPY6:%[0-9]+]]:gpr = COPY $r0
; CHECK: [[COPY7:%[0-9]+]]:gpr = COPY $r1
; CHECK: [[COPY8:%[0-9]+]]:gpr = COPY [[COPY7]]
; CHECK: [[COPY9:%[0-9]+]]:gpr = COPY [[COPY6]]
; CHECK: [[t2ADDrs:%[0-9]+]]:gprnopc = t2ADDrs [[COPY3]], [[t2LDRi12_]], 26, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[COPY10:%[0-9]+]]:gpr = COPY [[t2ADDrs]]
; CHECK: [[t2DoLoopStart:%[0-9]+]]:gprlr = t2DoLoopStart killed [[COPY2]]
; CHECK: bb.2.do.body:
; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
; CHECK: [[PHI:%[0-9]+]]:gprnopc = PHI [[COPY10]], %bb.1, %6, %bb.2
; CHECK: [[PHI1:%[0-9]+]]:gprlr = PHI [[t2DoLoopStart]], %bb.1, %21, %bb.2
; CHECK: t2STRi12 [[COPY9]], [[PHI]], 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.lsr.iv, align 8)
; CHECK: t2STRi12 [[COPY8]], [[PHI]], 4, 14 /* CC::al */, $noreg :: (store (s32) into %ir.lsr.iv + 4, basealign 8)
; CHECK: [[t2ADDri:%[0-9]+]]:rgpr = t2ADDri [[PHI]], 8, 14 /* CC::al */, $noreg, $noreg
; CHECK: [[COPY11:%[0-9]+]]:gpr = COPY [[t2ADDri]]
; CHECK: [[t2LoopEndDec:%[0-9]+]]:gprlr = t2LoopEndDec [[PHI1]], %bb.2, implicit-def $cpsr
; CHECK: t2B %bb.3, 14 /* CC::al */, $noreg
; CHECK: bb.3.if.end:
; CHECK: [[DEF:%[0-9]+]]:gpr = IMPLICIT_DEF
; CHECK: $r0 = COPY [[DEF]]
; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit $r0
bb.0.entry:
successors: %bb.1(0x40000000), %bb.3(0x40000000)
liveins: $r0, $r1, $r2, $r3
%11:gpr = COPY $r3
%10:gpr = COPY $r2
%9:rgpr = COPY $r1
%8:gprnopc = COPY $r0
%15:gprlr = t2WhileLoopSetup killed %9
t2WhileLoopStart %15, %bb.3, implicit-def dead $cpsr
t2B %bb.1, 14 /* CC::al */, $noreg
bb.1.if.then:
successors: %bb.2(0x80000000)
%13:gpr = COPY %11
%12:gpr = COPY %10
%14:rgpr = t2LDRi12 %fixed-stack.0, 0, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
%0:gpr = COPY %15
%16:rgpr = t2ASRri %14, 31, 14 /* CC::al */, $noreg, $noreg
ADJCALLSTACKDOWN 0, 0, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp
$r0 = COPY %12
$r1 = COPY %13
$r2 = COPY %14
$r3 = COPY %16
tBL 14 /* CC::al */, $noreg, &__aeabi_ldivmod, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit $r0, implicit $r1, implicit $r2, implicit $r3, implicit-def $sp, implicit-def $r0, implicit-def $r1
ADJCALLSTACKUP 0, 0, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp
%17:gpr = COPY $r0
%18:gpr = COPY $r1
%2:gpr = COPY %18
%1:gpr = COPY %17
%19:gprnopc = t2ADDrs %8, %14, 26, 14 /* CC::al */, $noreg, $noreg
%3:gpr = COPY %19
bb.2.do.body:
successors: %bb.2(0x7c000000), %bb.3(0x04000000)
%4:gprnopc = PHI %3, %bb.1, %6, %bb.2
%5:gprlr = PHI %0, %bb.1, %7, %bb.2
t2STRi12 %1, %4, 0, 14 /* CC::al */, $noreg :: (store (s32) into %ir.lsr.iv, align 8)
t2STRi12 %2, %4, 4, 14 /* CC::al */, $noreg :: (store (s32) into %ir.lsr.iv + 4, basealign 8)
%20:rgpr = t2ADDri %4, 8, 14 /* CC::al */, $noreg, $noreg
%6:gpr = COPY %20
%21:gprlr = t2LoopDec %5, 1
%7:gpr = COPY %21
t2LoopEnd %21, %bb.2, implicit-def dead $cpsr
t2B %bb.3, 14 /* CC::al */, $noreg
bb.3.if.end:
%23:gpr = IMPLICIT_DEF
$r0 = COPY %23
tBX_RET 14 /* CC::al */, $noreg, implicit $r0
...